Search for the lepton flavor violating decay $Z \rightarrow e \mu$ in pp collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector

CERN-PH-EP-2014-195

Submitted to: Physical Review D

Search for the lepton flavor violating decay

Z → eµ

in

pp

collisions at

√

s = 8 TeV

with the ATLAS detector

The ATLAS Collaboration

Abstract

The ATLAS detector at the Large Hadron Collider is used to search for the lepton flavor violating

process Z → eµ in pp collisions using 20.3 fb

−1

of data collected at

√

s = 8 TeV. An enhancement

in the eµ invariant mass spectrum is searched for at the Z boson mass. The number of Z bosons

produced in the data sample is estimated using events of similar topology, Z → ee and µµ, significantly

reducing the systematic uncertainty in the measurement. There is no evidence of an enhancement at

the Z boson mass, resulting in an upper limit on the branching fraction, B(Z → eµ) < 7.5 × 10

−7

at

the 95% confidence level.

c

2014 CERN for the benefit of the ATLAS Collaboration.

Reproduction of this article or parts of it is allowed as specified in the CC-BY-3.0 license.

Search for the lepton flavor violating decay Z → eµ in pp collisions at

√

s = 8 TeV

with the ATLAS detector

The ATLAS Collaboration

The ATLAS detector at the Large Hadron Collider is used to search for the lepton flavor violating process Z → eµ in pp collisions using 20.3 fb−1of data collected at√s = 8 TeV. An enhancement in the eµ invariant mass spectrum is searched for at the Z boson mass. The number of Z bosons pro-duced in the data sample is estimated using events of similar topology, Z → ee and µµ, significantly reducing the systematic uncertainty in the measurement. There is no evidence of an enhancement at the Z boson mass, resulting in an upper limit on the branching fraction, B(Z → eµ) < 7.5 × 10−7 at the 95% confidence level.

I. INTRODUCTION

Lepton flavor conservation in the charged lepton sector is a fundamental assumption of the Standard Model (SM) but there is no associated symmetry. Thus, searches for lepton flavor violation (LFV) processes are good candi-dates for probing new physics. The observation of trino oscillations is a clear indication of LFV in the neu-tral lepton sector; however such an oscillation mechanism cannot induce observable LFV in the charged lepton sec-tor. All searches in the charged lepton sector have pro-duced null results so far [1]. Lepton flavor violation in the charged lepton sector may have a different origin than LFV induced by neutrino oscillations and the search for this effect provides constraints on theories beyond the SM (see for example Refs. [2–4]).

In this paper, a search for the lepton flavor violating decay Z → eµ is presented. There are stringent exper-imental limits on other charged lepton flavor violating processes, which can be used to derive an upper limit on the branching fraction for Z → eµ with some theoretical assumptions. For example, the upper limit on µ → 3e yields B(Z → eµ) < 10−12 [5] and on µ → eγ yields B(Z → eµ) < 10−10 _{[6]. The experiments at the Large}

Electron–Positron Collider (LEP) searched directly for the decay Z → eµ [7–10]. The most stringent upper limit is B(Z → eµ) < 1.7 × 10−6 at the 95% confidence level (CL) using a data sample of 5.0 × 106_{Z bosons produced}

in e+_e− _{collisions at} √_{s = 88–94 GeV [7]. The Large}

Hadron Collider (LHC) has already produced many more Z bosons in pp collisions, but with substantially more background. In this paper, the 20.3 ± 0.6 fb−1 [11] of data collected at√s = 8 TeV by the ATLAS experiment corresponds to 7.8 × 108_{Z bosons produced. Despite the}

larger background at the LHC, a more restrictive direct limit on the Z → eµ decay is reported in this paper.

II. ATLAS DETECTOR

The ATLAS detector [12] consists of an inner detec-tor (ID) surrounded by a solenoid that produces a 2 T magnetic field, electromagnetic and hadronic calorime-ters, and a muon spectrometer (MS) immersed in a mag-netic field produced by a system of toroids. The ID

mea-sures the trajectories of charged particles over the full az-imuthal angle and in a pseudorapidity [13] range of |η| < 2.5 using silicon pixel, silicon microstrip, and straw-tube transition-radiation tracker (TRT) detectors. Liquid-argon (LAr) electromagnetic (EM) sampling calorimeters cover the range |η| < 3.2 and a scintillator-tile calorime-ter provides hadronic calorimetry for |η| < 1.7. In the endcaps (|η| > 1.5), LAr is also used for the hadronic calorimeters, matching the outer |η| limit of endcap elec-tromagnetic calorimeters. The LAr forward calorimeters extend the coverage to |η| < 4.9 and provide both the electromagnetic and hadronic energy measurements. The MS measures the deflection of muons within |η| < 2.7 us-ing three stations of precision drift tubes (with cathode strip chambers in the innermost station for |η| > 2.0) and provides separate trigger measurements from dedi-cated chambers in the region |η| < 2.4.

A three-level trigger system is used to select interesting events to be recorded for subsequent offline analysis [14]. For this analysis, the candidate events of interest are re-quired to satisfy either a single electron or a single muon trigger that have transverse momentum (pT) thresholds

of 24 GeV.

III. ANALYSIS STRATEGY

The event selection requires two high-pT isolated,

op-positely charged leptons of different flavor: e±µ∓. Events are required to contain little jet energy (i.e. small pTjetmax,

the maximum transverse momentum of any jet in an event) and small missing transverse momentum (with magnitude Emiss

T ). The former eliminates background

processes such as tt → eµννbb while the latter rejects W W → eµνν. These pTjetmax and ETmiss requirements are

chosen to maximize the Monte Carlo (MC) simulated sig-nal efficiency divided by the square root of the number of candidate background events in the data. Further details of this procedure are given in Sec. VI. After all selection criteria are applied, the dominant background process is Z → τ τ → eµνννν, which has an eµ invariant mass (meµ) spectrum extending into the Z signal region.

An excess of events above the background expecta-tion is searched for in the meµ spectrum at the Z boson

by fitting the meµspectrum. The expected signal shape

is obtained from MC simulation, while the background is parameterized using a Chebychev polynomial. The branching fraction is obtained from the ratio of the num-ber of observed Z → eµ candidates to the numnum-ber of observed Z → `` events in the data in the mass range 70 < m``< 110 GeV, where ` = e, µ. These Z → ee and

µµ samples are selected with the same selection criteria, resulting in the cancellation of the majority of systematic uncertainties due to electron, muon, and jet reconstruc-tion and modeling. The simulated events are used to cross-check the background level in data and to calculate the selection efficiency for Z → eµ/ee/µµ. All selection requirements were fixed before analyzing the data in the Z signal region from 85 to 95 GeV.

IV. MONTE CARLO SAMPLES

Monte Carlo simulated samples normalized to the data integrated luminosity are used to determine the major backgrounds pertinent to this analysis as well as to de-termine the optimal E_Tmissand pTjetmax requirements. All

MC samples are produced using the ATLAS detector sim-ulation [15] based on GEANT4 [16]. Signal Z → eµ MC events are produced with POWHEG-BOX r1556 [17] us-ing the CT10 parton distribution function (PDF) [18] and the AU2 set of tunable parameters (tune) [19] along with PYTHIA 8.175 [20] for parton showering, hadronization and underlying event simulation. To ensure proper nor-malization of the upper limit to the number of Z → ee and Z → µµ events, these events are simulated using the same generator as for the signal simulation. In prac-tice, the Z → eµ sample is created from a Z → ee sample by replacing one of the electrons by a muon at the genera-tor level. The Z → τ τ and W samples are simulated with ALPGEN 2.13 [21] interfaced to HERWIG 6.520.2 and PYTHIA 6.426 [22], respectively, using the CTEQ6L1 PDF [23] with the AUET2 tune [24]. The three dibo-son backgrounds, qq → W W , gg → W W , and W Z, are simulated with the CT10 PDF using MC@NLO 4.0 [25] with the AUET2 tune, GG2WW [26] with the AUET2 tune, and POWHEG-BOX interfaced to PYTHIA 8.165 with the AU2 tune, respectively. The top quark back-grounds, tt and single top quark production, are simu-lated with MC@NLO 4.0 and AcerMC 3.8 [27] interfaced to HERWIG 6.520.2 and PYTHIA 6.426, respectively, for parton showering and fragmentation. An average of 20 additional pp collisions per event in the same bunch crossing, known as pileup, are included in each event to match the data.

V. OBJECT SELECTION

Candidate electrons must have pe

T > 25 GeV and,

to ensure the shower is well contained in the high-granularity region of the EM calorimeter, |ηe_{| < 2.47 [28].}

The candidate must not be in the transition region be-tween the barrel and endcap calorimeters, 1.37 < |ηe| < 1.52. The impact parameters of the candidate must also be consistent with originating from the primary ver-tex, defined as the reconstructed vertex with the largest sum of track p2_T, constructed from at least three tracks each with pT > 400 MeV. The longitudinal impact

pa-rameter, z0, measured with respect to the primary

ver-tex, of the candidate must satisfy |z0sin θ| < 0.5 mm

and the transverse impact parameter, d0, must satisfy

|d0| < 6σd0, where σd0 is the uncertainty of the impact

parameter. The electron candidate must be isolated from other event activity by requiring the sum of the trans-verse momentum of tracks with pT > 1 GeV in a cone

of size ∆R = p(∆φ)2_{+ (∆η)}2 _{= 0.2 around the}

can-didate to satisfy ΣpT(∆R < 0.2)/peT < 0.13. In the

calorimeter, the sum of the transverse energy deposits in the calorimeter clusters in a cone of size ∆R = 0.2 around the candidate must satisfy ΣET(∆R < 0.2)/peT < 0.14.

Candidates must also satisfy the “tight” identification re-quirements of Ref. [28], which are based on calorimeter shower shape, ID track quality, and the spatial match between the shower and the track.

Muon candidates must have pµ_T> 25 GeV and |ηµ| < 2.5 to ensure coverage by the ID. Muons are required to have a high-quality TRT track segment if they are within the detector acceptance of the TRT. To ensure the muon originated from the primary vertex, the distances of clos-est approach to the primary vertex in both z and the transverse plane must satisfy |z0sin θ| < 0.5 mm and

|d0| < 3σd0, respectively. To reject secondary muons

from hadronic jets, the ID track used in the muon recon-struction must be isolated by requiring the sum of the pT of the tracks around the muon candidate to satisfy

ΣpT(∆R < 0.2)/pµT < 0.15. In the calorimeter, there

should be little activity around the muon candidate by requiring the sum of the ET around the muon

candi-date to satisfy ΣET(∆R < 0.2)/pµ_T < 0.3. Candidates

must also satisfy the “tight” identification requirements of Ref. [29] and have their MS track matched to the ID track [30].

Hadronic jets [31] are reconstructed using the anti-kt

algorithm with distance parameter R = 0.4 [32]. The scalar sum of pT of tracks associated with the jet which

come from the primary vertex, divided by the scalar sum of pTof all tracks associated with the jet, must be greater

than 50% for jets with |η| < 2.4 and pT < 50 GeV to

remove jets originating from pileup in the central region. The rapidity [33] of jets must satisfy |y| < 4.4. Finally, only jets with pT> 20 GeV are considered in the event

selection.

The Emiss

T is defined as the pT imbalance in the

de-tector. It is formed from the vector sum of the pT of

reconstructed high-pT objects—electrons, photons, jets,

τ leptons, and muons—as well as energy deposits not associated with any reconstructed objects [34].

VI. EVENT SELECTION

A Z candidate is constructed from two opposite sign, different flavor leptons (e or µ). Electron candidates are vetoed if they are within ∆R = 0.1 of a candidate muon. Jets are removed if they are within ∆R = 0.3 of a candi-date lepton. Events with more than two candicandi-date lep-tons are vetoed, as are events with an additional electron or muon that passed the lepton requirements but is not isolated.

As stated above, the selection criteria for Emiss_T and pTjetmax are chosen to maximize the reconstruction

effi-ciency divided by the square root of the estimated num-ber of background events. The efficiency for selecting eµ candidates is calculated using MC signal events in the Z signal region, 85 < meµ < 95 GeV. The background

is determined by fitting the meµspectrum in data in the

mass range 70 < meµ< 110 GeV, excluding the Z signal

region, and then interpolating the fitted curve into the Z signal region to estimate the number of background events. The fitting range is chosen so that the meµ

spec-trum can be parameterized with a polynomial. In partic-ular, the lower meµ limit is chosen to be above the peak

in the Z → τ τ → eµ mass distribution. The optimum selection criteria are found to be Emiss

T < 17 GeV and

pTjetmax< 30 GeV.

Several background functions with a small number of free parameters in the fit were investigated before analyz-ing (“unblindanalyz-ing”) the events in the Z mass region. This includes Chebychev polynomials of 2nd _{to 4}th_{-orders, a}

Landau function, and an exponential function plus a lin-ear term. The 2nd-order polynomial has an unacceptable χ2 _{per degree of freedom, χ}2_{/DOF = 3.3. All other}

functions have χ2_{/DOF ∼ 1. The 3}rd_{-order polynomial}

is chosen as the default background function for simplic-ity. The systematic error due to the choice of fitting functions is discussed below.

The Emiss

T and pTjetmaxdistributions in the data are

com-pared with the expectation for a MC simulation of the background and signal in Fig. 1. Each plot has all kine-matic cuts applied with the exception of the cut on the kinematic variable being shown—as indicated by the ver-tical lines and arrows. The signal MC is scaled to the 95% CL upper limit presented in Sec. VII. The multijet background in these distributions refers to events where at least two jets are misidentified as leptons. The shape and normalization of this background can be estimated from like-sign eµ candidates in the data. The contribu-tions to the same-sign distribution from top quark and W/Z events are estimated using simulation (Sec. IV) and subtracted from the same-sign data.

The E_Tmissdistribution of eµ candidate events is shown in Fig. 1(a). The Emiss

T requirement removes most of the

diboson background while retaining the majority of the simulated signal events. The distribution of the pTjetmaxof

the candidate events is shown in Fig. 1(b). The entries in the first bin correspond to events that have no jets pass-ing the jet selection requirements described in Sec. V.

The jet veto eliminates most of the tt background while maintaining a high reconstruction efficiency for Z → eµ. The remaining major backgrounds in the Z signal re-gion are diboson, multijet, Z → τ τ , and Z → µµ. For the Z → µµ background, one of the muons can inter-act with the detector material leading to the muon be-ing misidentified as an electron due to its overlap with a bremsstrahlung photon. The Emiss

T and the pTjetmax

dis-tributions of the background are well reproduced by the MC simulation. However, in extracting the upper limit on the branching fraction for Z → eµ, the background is estimated from the data instead of using MC simulation.

VII. RESULT

The meµ distribution with the background

expecta-tions superimposed is shown in Fig. 2. The mass spec-trum is consistent with the MC background expectation with no evidence of an enhancement at the Z mass. The mass spectrum is fit as a sum of signal and background contributions as shown in Fig. 3. The signal shape is a binned histogram obtained from the signal MC sample and the absolute normalization is a free parameter in the fit. The background is a 3rd_{-order Chebychev polynomial}

function. The fit yields a signal of 4 ± 35 events. The upper limit on B(Z → eµ) is given by

B(Z → eµ) < N95% eµNZ

, (1)

where N95%is the upper limit on the number of Z → eµ

candidate events at 95% CL, eµis the reconstruction

ef-ficiency for a Z → eµ event, and NZ is an estimate of the

total number of Z bosons produced in the data sample. This estimate is obtained from the weighted average of two measurements. One is the number of Z bosons pro-duced as calculated from the number of Z → ee events detected in the data, after correcting for the reconstruc-tion efficiency and branching fracreconstruc-tion [35]. The other is calculated with the same procedure using the Z → µµ channel. The numbers of ee and µµ events are estimated by counting the candidates with dilepton invariant mass in the region 70 < m`` < 110 GeV. The

recon-struction efficiencies are estimated using MC simulation, calibrated with Z candidates using the tag-and-probe method [28, 30]. The result is summarized in Table I. The weight of each measurement is given by the total uncer-tainty, the quadratic sum of the statistical and system-atic uncertainties. The systemsystem-atic uncertainties include the uncertainties in the electron and muon reconstruc-tion and trigger efficiencies and the absolute scale and resolution of the electron energy and muon pT [30, 36].

These systematic uncertainties are uncorrelated between ee and µµ events. Other systematic uncertainties such as those due to imperfect simulation of the Emiss

T and pTjetmax

distributions are correlated for the eµ, ee, and µµ chan-nels and cancel in the ratio (Eq. (1)), although they are

[GeV]

miss T

E

0

20

40

60

80

100 120 140

Events / 5 GeV

20

40

60

80

100

120

140

160

MC stat. error µ µ ee/ → Z τ τ → Z Multijet W Diboson Top Data µ e → Z -7 10 × B = 7.5

(a)

-1 = 8 TeV, 20.3 fb s Rejected

ATLAS

[GeV]

max T jet

p

0

20

40

60

80 100 120 140

Events / 5 GeV

1

10

2

10

MC stat. error µ µ ee/ → Z τ τ → Z Multijet W Diboson Top Data µ e → Z -7 10 × B = 7.5

(b)

-1 = 8 TeV, 20.3 fb s Rejected

ATLAS

FIG. 1. Distributions of (a) ETmissand (b) pTjetmax for Z → eµ

candidate events with 85 < meµ < 95 GeV. The

ex-pectations for backgrounds from various sources are shown as stacked histograms. Each plot has all cuts applied except for the kinematic variable being shown. The vertical lines and arrows indicate the Emiss

T and pTjetmax requirements. The

hatched bands show the total statistical uncertainty of the backgrounds. The expected distribution of Z → eµ signal events, normalized to the upper limit on the branching frac-tion (B(Z → eµ) = 7.5 × 10−7), is indicated by a black line. The entries at zero in the pTjetmax distribution correspond to

events with no jets that satisfy the jet selection.

[GeV]

µ e

m

70

75

80

85

90

95 100 105 110

Events / 2 GeV

0

100

200

300

400

500

600

700

MC stat. error µ µ ee/ → Z τ τ → Z Multijet W Diboson Top Data µ e → Z -5 10 × B = 1.0 -1 = 8 TeV, 20.3 fb s

ATLAS

FIG. 2. The eµ invariant mass distribution in data with the background expectations from various processes after all cuts applied. The hatched bands show the total statistical uncer-tainty of backgrounds. The expected distribution of Z → eµ signal events, normalized to 13 times the upper limit on the branching fraction (13×B(Z → eµ) = 1.0×10−5), is indicated by a black line.

major contributors to the systematic uncertainties shown in Table I before the cancellation. With the cancellation, the systematic uncertainty on B(Z → eµ) is 1.2%, small compared to the overall fitting systematic uncertainty, and is neglected in the final result.

TABLE I. The reconstruction efficiencies for Z → eµ, ee, and µµ events are shown. Also shown are the number of Z bosons produced, NZ, as estimated from the number of Z →

ee and Z → µµ events, after correcting for the corresponding reconstruction efficiencies and branching fractions, as well as the weighted average. The total uncertainties are given.

Z decay Efficiency (%) NZ (108)

ee 10.8 ± 0.3 7.85 ± 0.24 µµ 17.8 ± 0.4 7.79 ± 0.17 hee, µµi 7.80 ± 0.15

eµ 14.2 ± 0.4

A one-sided Profile Likelihood [37] is used as a test statistic to calculate an upper limit on the number of signal events using the CLs procedure [38]. The

pro-cedure yields an observed 95% CL upper limit of 72 events. This is consistent with the expected upper limit of 69 events obtained by generating pseudo-experiments from the observed background spectrum. For the pseudo-experiments, the observed data distribution in the side-band is fitted with a 3rd_{-order Chebychev polynomial and}

[GeV] µ e m 70 75 80 85 90 95 100 105 110 Events / GeV 50 100 150 200 250 300 Data Fit -7 10 × B = 7.5 -1 = 8 TeV, 20.3 fb s /DOF = 0.75 2 χ ATLAS [GeV] µ e m 70 75 80 85 90 95 100 105 110 Data - Fit _-20-10 0 10 20

FIG. 3. The eµ invariant mass distribution fitted with a signal shape obtained from MC simulation and a 3rd-order Chebychev polynomial to describe the background (solid). The observed 95% CL upper limit (dashed) is indicated (B(Z → eµ) = 7.5 × 10−7). The lower plot shows the data with the background component of the fit subtracted.

the fitted function is then interpolated into the signal re-gion to predict the central value for the number of ground events in each bin. The central value of the back-ground events in the backback-ground region or interpolated data for the signal region is then fluctuated.

There is a systematic uncertainty due to the choice of fitting function used to estimate the background and the associated fitting region (Sec. VI). The upper and lower limits of the fit region are varied in the ranges 100–120 GeV and 70–80 GeV in 5 GeV increments. The background parameterization that yields the largest up-per limit on the number of signal events (83 events) is used to set an upper limit on the branching fraction at the 95% confidence level,

B(Z → eµ) < 7.5 × 10−7. (2)

VIII. CONCLUSIONS

A search for the lepton flavor violating process Z → eµ in pp collisions is performed with the ATLAS detector at the LHC. There is no evidence of an enhancement at the Z boson mass in the meµ spectrum for the dataset with

an integrated luminosity of 20.3 fb−1 at √s = 8 TeV. Using the CLs method with a one-sided Profile

Likeli-hood as a test statistic, an upper limit of 83 signal events

at 95% CL is found. This leads to an upper limit on the branching fraction of B(Z → eµ) < 7.5 × 10−7 at 95% CL, significantly more restrictive than that from the LEP experiments.

ACKNOWLEDGMENTS

We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; EPLANET, ERC and NSRF, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT and NSRF, Greece; ISF, MINERVA, GIF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW and NCN, Poland; GRICES and FCT, Portugal; MNE/IFA, Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MIZˇS, Slove-nia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Tai-wan; TAEK, Turkey; STFC, the Royal Society and Lev-erhulme Trust, United Kingdom; DOE and NSF, United States of America.

The crucial computing support from all WLCG part-ners is acknowledged gratefully, in particular from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Tai-wan), RAL (UK) and BNL (USA) and in the Tier-2 fa-cilities worldwide.

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The ATLAS Collaboration

G. Aad85, B. Abbott113, J. Abdallah153, S. Abdel Khalek117, O. Abdinov11, R. Aben107, B. Abi114, M. Abolins90, O.S. AbouZeid160_{, H. Abramowicz}155_{, H. Abreu}154_{, R. Abreu}30_{, Y. Abulaiti}148a,148b_{, B.S. Acharya}166a,166b,a_,

L. Adamczyk38a_{, D.L. Adams}25_{, J. Adelman}178_{, S. Adomeit}100_{, T. Adye}131_{, T. Agatonovic-Jovin}13a_,

J.A. Aguilar-Saavedra126a,126f_{, M. Agustoni}17_{, S.P. Ahlen}22_{, F. Ahmadov}65,b_{, G. Aielli}135a,135b_,

H. Akerstedt148a,148b_{, T.P.A. ˚Akesson}81_{, G. Akimoto}157_{, A.V. Akimov}96_{, G.L. Alberghi}20a,20b_{, J. Albert}171_,

S. Albrand55, M.J. Alconada Verzini71, M. Aleksa30, I.N. Aleksandrov65, C. Alexa26a, G. Alexander155,

G. Alexandre49, T. Alexopoulos10, M. Alhroob166a,166c, G. Alimonti91a, L. Alio85, J. Alison31, B.M.M. Allbrooke18, L.J. Allison72_{, P.P. Allport}74_{, A. Aloisio}104a,104b_{, A. Alonso}36_{, F. Alonso}71_{, C. Alpigiani}76_{, A. Altheimer}35_,

B. Alvarez Gonzalez90_{, M.G. Alviggi}104a,104b_{, K. Amako}66_{, Y. Amaral Coutinho}24a_{, C. Amelung}23_{, D. Amidei}89_,

S.P. Amor Dos Santos126a,126c_{, A. Amorim}126a,126b_{, S. Amoroso}48_{, N. Amram}155_{, G. Amundsen}23_,

C. Anastopoulos141, L.S. Ancu49, N. Andari30, T. Andeen35, C.F. Anders58b, G. Anders30, K.J. Anderson31, A. Andreazza91a,91b, V. Andrei58a, X.S. Anduaga71, S. Angelidakis9, I. Angelozzi107, P. Anger44, A. Angerami35, F. Anghinolfi30_{, A.V. Anisenkov}109,c_{, N. Anjos}12_{, A. Annovi}47_{, A. Antonaki}9_{, M. Antonelli}47_{, A. Antonov}98_,

J. Antos146b_{, F. Anulli}134a_{, M. Aoki}66_{, L. Aperio Bella}18_{, R. Apolle}120,d_{, G. Arabidze}90_{, I. Aracena}145_{, Y. Arai}66_,

J.P. Araque126a_{, A.T.H. Arce}45_{, J-F. Arguin}95_{, S. Argyropoulos}42_{, M. Arik}19a_{, A.J. Armbruster}30_{, O. Arnaez}30_,

V. Arnal82_{, H. Arnold}48_{, M. Arratia}28_{, O. Arslan}21_{, A. Artamonov}97_{, G. Artoni}23_{, S. Asai}157_{, N. Asbah}42_,

A. Ashkenazi155, B. ˚Asman148a,148b, L. Asquith6, K. Assamagan25, R. Astalos146a, M. Atkinson167, N.B. Atlay143, B. Auerbach6_{, K. Augsten}128_{, M. Aurousseau}147b_{, G. Avolio}30_{, G. Azuelos}95,e_{, Y. Azuma}157_{, M.A. Baak}30_,

A.E. Baas58a_{, C. Bacci}136a,136b_{, H. Bachacou}138_{, K. Bachas}156_{, M. Backes}30_{, M. Backhaus}30_{, J. Backus Mayes}145_,

E. Badescu26a_{, P. Bagiacchi}134a,134b_{, P. Bagnaia}134a,134b_{, Y. Bai}33a_{, T. Bain}35_{, J.T. Baines}131_{, O.K. Baker}178_,

P. Balek129_{, F. Balli}138_{, E. Banas}39_{, Sw. Banerjee}175_{, A.A.E. Bannoura}177_{, V. Bansal}171_{, H.S. Bansil}18_{, L. Barak}174_,

S.P. Baranov96, E.L. Barberio88, D. Barberis50a,50b, M. Barbero85, T. Barillari101, M. Barisonzi177, T. Barklow145, N. Barlow28, B.M. Barnett131, R.M. Barnett15, Z. Barnovska5, A. Baroncelli136a, G. Barone49, A.J. Barr120, F. Barreiro82_{, J. Barreiro Guimar˜aes da Costa}57_{, R. Bartoldus}145_{, A.E. Barton}72_{, P. Bartos}146a_{, V. Bartsch}151_,

A. Bassalat117_{, A. Basye}167_{, R.L. Bates}53_{, J.R. Batley}28_{, M. Battaglia}139_{, M. Battistin}30_{, F. Bauer}138_,

H.S. Bawa145,f_{, M.D. Beattie}72_{, T. Beau}80_{, P.H. Beauchemin}163_{, R. Beccherle}124a,124b_{, P. Bechtle}21_{, H.P. Beck}17_,

K. Becker177_{, S. Becker}100_{, M. Beckingham}172_{, C. Becot}117_{, A.J. Beddall}19c_{, A. Beddall}19c_{, S. Bedikian}178_,

V.A. Bednyakov65, C.P. Bee150, L.J. Beemster107, T.A. Beermann177, M. Begel25, K. Behr120,

C. Belanger-Champagne87_{, P.J. Bell}49_{, W.H. Bell}49_{, G. Bella}155_{, L. Bellagamba}20a_{, A. Bellerive}29_{, M. Bellomo}86_,

K. Belotskiy98_{, O. Beltramello}30_{, O. Benary}155_{, D. Benchekroun}137a_{, K. Bendtz}148a,148b_{, N. Benekos}167_,

Y. Benhammou155_{, E. Benhar Noccioli}49_{, J.A. Benitez Garcia}161b_{, D.P. Benjamin}45_{, J.R. Bensinger}23_,

K. Benslama132_{, S. Bentvelsen}107_{, D. Berge}107_{, E. Bergeaas Kuutmann}16_{, N. Berger}5_{, F. Berghaus}171_{, J. Beringer}15_,

C. Bernard22, P. Bernat78, C. Bernius79, F.U. Bernlochner171, T. Berry77, P. Berta129, C. Bertella85, G. Bertoli148a,148b, F. Bertolucci124a,124b, C. Bertsche113, D. Bertsche113, M.I. Besana91a, G.J. Besjes106,

O. Bessidskaia148a,148b_{, M. Bessner}42_{, N. Besson}138_{, C. Betancourt}48_{, S. Bethke}101_{, W. Bhimji}46_{, R.M. Bianchi}125_,

L. Bianchini23_{, M. Bianco}30_{, O. Biebel}100_{, S.P. Bieniek}78_{, K. Bierwagen}54_{, J. Biesiada}15_{, M. Biglietti}136a_,

J. Bilbao De Mendizabal49_{, H. Bilokon}47_{, M. Bindi}54_{, S. Binet}117_{, A. Bingul}19c_{, C. Bini}134a,134b_{, C.W. Black}152_,

J.E. Black145, K.M. Black22, D. Blackburn140, R.E. Blair6, J.-B. Blanchard138, T. Blazek146a, I. Bloch42, C. Blocker23, W. Blum83,∗, U. Blumenschein54, G.J. Bobbink107, V.S. Bobrovnikov109,c, S.S. Bocchetta81, A. Bocci45_{, C. Bock}100_{, C.R. Boddy}120_{, M. Boehler}48_{, T.T. Boek}177_{, J.A. Bogaerts}30_{, A.G. Bogdanchikov}109_,

A. Bogouch92,∗_{, C. Bohm}148a_{, J. Bohm}127_{, V. Boisvert}77_{, T. Bold}38a_{, V. Boldea}26a_{, A.S. Boldyrev}99_{, M. Bomben}80_,

M. Bona76_{, M. Boonekamp}138_{, A. Borisov}130_{, G. Borissov}72_{, M. Borri}84_{, S. Borroni}42_{, J. Bortfeldt}100_,

V. Bortolotto136a,136b_{, K. Bos}107_{, D. Boscherini}20a_{, M. Bosman}12_{, H. Boterenbrood}107_{, J. Boudreau}125_{, J. Bouffard}2_,

E.V. Bouhova-Thacker72, D. Boumediene34, C. Bourdarios117, N. Bousson114, S. Boutouil137d, A. Boveia31, J. Boyd30_{, I.R. Boyko}65_{, I. Bozic}13a_{, J. Bracinik}18_{, A. Brandt}8_{, G. Brandt}15_{, O. Brandt}58a_{, U. Bratzler}158_,

B. Brau86_{, J.E. Brau}116_{, H.M. Braun}177,∗_{, S.F. Brazzale}166a,166c_{, B. Brelier}160_{, K. Brendlinger}122_{, A.J. Brennan}88_,

R. Brenner168_{, S. Bressler}174_{, K. Bristow}147c_{, T.M. Bristow}46_{, D. Britton}53_{, F.M. Brochu}28_{, I. Brock}21_{, R. Brock}90_,

C. Bromberg90_{, J. Bronner}101_{, G. Brooijmans}35_{, T. Brooks}77_{, W.K. Brooks}32b_{, J. Brosamer}15_{, E. Brost}116_,

J. Brown55, P.A. Bruckman de Renstrom39, D. Bruncko146b, R. Bruneliere48, S. Brunet61, A. Bruni20a, G. Bruni20a, M. Bruschi20a, L. Bryngemark81, T. Buanes14, Q. Buat144, F. Bucci49, P. Buchholz143, R.M. Buckingham120, A.G. Buckley53_{, S.I. Buda}26a_{, I.A. Budagov}65_{, F. Buehrer}48_{, L. Bugge}119_{, M.K. Bugge}119_{, O. Bulekov}98_,

A.C. Bundock74_{, H. Burckhart}30_{, S. Burdin}74_{, B. Burghgrave}108_{, S. Burke}131_{, I. Burmeister}43_{, E. Busato}34_,

D. B¨uscher48_{, V. B¨uscher}83_{, P. Bussey}53_{, C.P. Buszello}168_{, B. Butler}57_{, J.M. Butler}22_{, A.I. Butt}3_{, C.M. Buttar}53_,

J.M. Butterworth78_{, P. Butti}107_{, W. Buttinger}28_{, A. Buzatu}53_{, M. Byszewski}10_{, S. Cabrera Urb´an}169_,

D. Caforio20a,20b, O. Cakir4a, P. Calafiura15, A. Calandri138, G. Calderini80, P. Calfayan100, R. Calkins108, L.P. Caloba24a_{, D. Calvet}34_{, S. Calvet}34_{, R. Camacho Toro}49_{, S. Camarda}42_{, D. Cameron}119_{, L.M. Caminada}15_,

R. Caminal Armadans12, S. Campana30, M. Campanelli78, A. Campoverde150, V. Canale104a,104b, A. Canepa161a, M. Cano Bret76, J. Cantero82, R. Cantrill126a, T. Cao40, M.D.M. Capeans Garrido30, I. Caprini26a, M. Caprini26a, M. Capua37a,37b_{, R. Caputo}83_{, R. Cardarelli}135a_{, T. Carli}30_{, G. Carlino}104a_{, L. Carminati}91a,91b_{, S. Caron}106_,

E. Carquin32a_{, G.D. Carrillo-Montoya}147c_{, J.R. Carter}28_{, J. Carvalho}126a,126c_{, D. Casadei}78_{, M.P. Casado}12_,

M. Casolino12_{, E. Castaneda-Miranda}147b_{, A. Castelli}107_{, V. Castillo Gimenez}169_{, N.F. Castro}126a_{, P. Catastini}57_,

A. Catinaccio30, J.R. Catmore119, A. Cattai30, G. Cattani135a,135b, J. Caudron83, V. Cavaliere167, D. Cavalli91a, M. Cavalli-Sforza12, V. Cavasinni124a,124b, F. Ceradini136a,136b, B.C. Cerio45, K. Cerny129, A.S. Cerqueira24b, A. Cerri151_{, L. Cerrito}76_{, F. Cerutti}15_{, M. Cerv}30_{, A. Cervelli}17_{, S.A. Cetin}19b_{, A. Chafaq}137a_{, D. Chakraborty}108_,

I. Chalupkova129_{, P. Chang}167_{, B. Chapleau}87_{, J.D. Chapman}28_{, D. Charfeddine}117_{, D.G. Charlton}18_{, C.C. Chau}160_,

C.A. Chavez Barajas151_{, S. Cheatham}87_{, A. Chegwidden}90_{, S. Chekanov}6_{, S.V. Chekulaev}161a_{, G.A. Chelkov}65,g_,

M.A. Chelstowska89_{, C. Chen}64_{, H. Chen}25_{, K. Chen}150_{, L. Chen}33d,h_{, S. Chen}33c_{, X. Chen}33f_{, Y. Chen}67_,

Y. Chen35, H.C. Cheng89, Y. Cheng31, A. Cheplakov65, R. Cherkaoui El Moursli137e, V. Chernyatin25,∗, E. Cheu7, L. Chevalier138, V. Chiarella47, G. Chiefari104a,104b, J.T. Childers6, A. Chilingarov72, G. Chiodini73a,

A.S. Chisholm18_{, R.T. Chislett}78_{, A. Chitan}26a_{, M.V. Chizhov}65_{, S. Chouridou}9_{, B.K.B. Chow}100_,

D. Chromek-Burckhart30_{, M.L. Chu}153_{, J. Chudoba}127_{, J.J. Chwastowski}39_{, L. Chytka}115_{, G. Ciapetti}134a,134b_,

A.K. Ciftci4a_{, R. Ciftci}4a_{, D. Cinca}53_{, V. Cindro}75_{, A. Ciocio}15_{, P. Cirkovic}13b_{, Z.H. Citron}174_{, M. Citterio}91a_,

M. Ciubancan26a, A. Clark49, P.J. Clark46, R.N. Clarke15, W. Cleland125, J.C. Clemens85, C. Clement148a,148b, Y. Coadou85, M. Cobal166a,166c, A. Coccaro140, J. Cochran64, L. Coffey23, J.G. Cogan145, J. Coggeshall167, B. Cole35_{, S. Cole}108_{, A.P. Colijn}107_{, J. Collot}55_{, T. Colombo}58c_{, G. Colon}86_{, G. Compostella}101_,

P. Conde Mui˜no126a,126b_{, E. Coniavitis}48_{, M.C. Conidi}12_{, S.H. Connell}147b_{, I.A. Connelly}77_{, S.M. Consonni}91a,91b_,

V. Consorti48_{, S. Constantinescu}26a_{, C. Conta}121a,121b_{, G. Conti}57_{, F. Conventi}104a,i_{, M. Cooke}15_{, B.D. Cooper}78_,

A.M. Cooper-Sarkar120_{, N.J. Cooper-Smith}77_{, K. Copic}15_{, T. Cornelissen}177_{, M. Corradi}20a_{, F. Corriveau}87,j_,

A. Corso-Radu165, A. Cortes-Gonzalez12, G. Cortiana101, G. Costa91a, M.J. Costa169, D. Costanzo141, D. Cˆot´e8, G. Cottin28_{, G. Cowan}77_{, B.E. Cox}84_{, K. Cranmer}110_{, G. Cree}29_{, S. Cr´ep´e-Renaudin}55_{, F. Crescioli}80_,

W.A. Cribbs148a,148b_{, M. Crispin Ortuzar}120_{, M. Cristinziani}21_{, V. Croft}106_{, G. Crosetti}37a,37b_{, C.-M. Cuciuc}26a_,

T. Cuhadar Donszelmann141_{, J. Cummings}178_{, M. Curatolo}47_{, C. Cuthbert}152_{, H. Czirr}143_{, P. Czodrowski}3_,

Z. Czyczula178_{, S. D’Auria}53_{, M. D’Onofrio}74_{, M.J. Da Cunha Sargedas De Sousa}126a,126b_{, C. Da Via}84_,

W. Dabrowski38a, A. Dafinca120, T. Dai89, O. Dale14, F. Dallaire95, C. Dallapiccola86, M. Dam36, A.C. Daniells18, M. Dano Hoffmann138, V. Dao48, G. Darbo50a, S. Darmora8, J.A. Dassoulas42, A. Dattagupta61, W. Davey21, C. David171_{, T. Davidek}129_{, E. Davies}120,d_{, M. Davies}155_{, O. Davignon}80_{, A.R. Davison}78_{, P. Davison}78_,

Y. Davygora58a_{, E. Dawe}144_{, I. Dawson}141_{, R.K. Daya-Ishmukhametova}86_{, K. De}8_{, R. de Asmundis}104a_,

S. De Castro20a,20b_{, S. De Cecco}80_{, N. De Groot}106_{, P. de Jong}107_{, H. De la Torre}82_{, F. De Lorenzi}64_,

L. De Nooij107, D. De Pedis134a, A. De Salvo134a, U. De Sanctis151, A. De Santo151, J.B. De Vivie De Regie117, W.J. Dearnaley72, R. Debbe25, C. Debenedetti139, B. Dechenaux55, D.V. Dedovich65, I. Deigaard107, J. Del Peso82, T. Del Prete124a,124b_{, F. Deliot}138_{, C.M. Delitzsch}49_{, M. Deliyergiyev}75_{, A. Dell’Acqua}30_{, L. Dell’Asta}22_,

M. Dell’Orso124a,124b_{, M. Della Pietra}104a,i_{, D. della Volpe}49_{, M. Delmastro}5_{, P.A. Delsart}55_{, C. Deluca}107_,

S. Demers178_{, M. Demichev}65_{, A. Demilly}80_{, S.P. Denisov}130_{, D. Derendarz}39_{, J.E. Derkaoui}137d_{, F. Derue}80_,

P. Dervan74_{, K. Desch}21_{, C. Deterre}42_{, P.O. Deviveiros}107_{, A. Dewhurst}131_{, S. Dhaliwal}107_{, A. Di Ciaccio}135a,135b_,

L. Di Ciaccio5, A. Di Domenico134a,134b, C. Di Donato104a,104b, A. Di Girolamo30, B. Di Girolamo30, A. Di Mattia154, B. Di Micco136a,136b, R. Di Nardo47, A. Di Simone48, R. Di Sipio20a,20b, D. Di Valentino29, F.A. Dias46_{, M.A. Diaz}32a_{, E.B. Diehl}89_{, J. Dietrich}42_{, T.A. Dietzsch}58a_{, S. Diglio}85_{, A. Dimitrievska}13a_,

J. Dingfelder21_{, C. Dionisi}134a,134b_{, P. Dita}26a_{, S. Dita}26a_{, F. Dittus}30_{, F. Djama}85_{, T. Djobava}51b_,

M.A.B. do Vale24c_{, A. Do Valle Wemans}126a,126g_{, D. Dobos}30_{, C. Doglioni}49_{, T. Doherty}53_{, T. Dohmae}157_,

J. Dolejsi129, Z. Dolezal129, B.A. Dolgoshein98,∗, M. Donadelli24d, S. Donati124a,124b, P. Dondero121a,121b, J. Donini34, J. Dopke131, A. Doria104a, M.T. Dova71, A.T. Doyle53, M. Dris10, J. Dubbert89, S. Dube15, E. Dubreuil34_{, E. Duchovni}174_{, G. Duckeck}100_{, O.A. Ducu}26a_{, D. Duda}177_{, A. Dudarev}30_{, F. Dudziak}64_,

L. Duflot117_{, L. Duguid}77_{, M. D¨uhrssen}30_{, M. Dunford}58a_{, H. Duran Yildiz}4a_{, M. D¨uren}52_{, A. Durglishvili}51b_,

M. Dwuznik38a_{, M. Dyndal}38a_{, J. Ebke}100_{, W. Edson}2_{, N.C. Edwards}46_{, W. Ehrenfeld}21_{, T. Eifert}145_{, G. Eigen}14_,

K. Einsweiler15_{, T. Ekelof}168_{, M. El Kacimi}137c_{, M. Ellert}168_{, S. Elles}5_{, F. Ellinghaus}83_{, N. Ellis}30_{, J. Elmsheuser}100_,

M. Elsing30, D. Emeliyanov131, Y. Enari157, O.C. Endner83, M. Endo118, R. Engelmann150, J. Erdmann178, A. Ereditato17_{, D. Eriksson}148a_{, G. Ernis}177_{, J. Ernst}2_{, M. Ernst}25_{, J. Ernwein}138_{, D. Errede}167_{, S. Errede}167_,

E. Ertel83_{, M. Escalier}117_{, H. Esch}43_{, C. Escobar}125_{, B. Esposito}47_{, A.I. Etienvre}138_{, E. Etzion}155_{, H. Evans}61_,

A. Ezhilov123_{, L. Fabbri}20a,20b_{, G. Facini}31_{, R.M. Fakhrutdinov}130_{, S. Falciano}134a_{, R.J. Falla}78_{, J. Faltova}129_,

Y. Fang33a_{, M. Fanti}91a,91b_{, A. Farbin}8_{, A. Farilla}136a_{, T. Farooque}12_{, S. Farrell}15_{, S.M. Farrington}172_,

P. Farthouat30, F. Fassi137e, P. Fassnacht30, D. Fassouliotis9, A. Favareto50a,50b, L. Fayard117, P. Federic146a, O.L. Fedin123,k, W. Fedorko170, M. Fehling-Kaschek48, S. Feigl30, L. Feligioni85, C. Feng33d, E.J. Feng6, H. Feng89, A.B. Fenyuk130_{, S. Fernandez Perez}30_{, S. Ferrag}53_{, J. Ferrando}53_{, A. Ferrari}168_{, P. Ferrari}107_{, R. Ferrari}121a_,

F. Fiedler83, A. Filipˇciˇc75, M. Filipuzzi42, F. Filthaut106, M. Fincke-Keeler171, K.D. Finelli152,

M.C.N. Fiolhais126a,126c, L. Fiorini169, A. Firan40, A. Fischer2, J. Fischer177, W.C. Fisher90, E.A. Fitzgerald23, M. Flechl48_{, I. Fleck}143_{, P. Fleischmann}89_{, S. Fleischmann}177_{, G.T. Fletcher}141_{, G. Fletcher}76_{, T. Flick}177_,

A. Floderus81_{, L.R. Flores Castillo}60a_{, A.C. Florez Bustos}161b_{, M.J. Flowerdew}101_{, A. Formica}138_{, A. Forti}84_,

D. Fortin161a_{, D. Fournier}117_{, H. Fox}72_{, S. Fracchia}12_{, P. Francavilla}80_{, M. Franchini}20a,20b_{, S. Franchino}30_,

D. Francis30, L. Franconi119, M. Franklin57, S. Franz62, M. Fraternali121a,121b, S.T. French28, C. Friedrich42, F. Friedrich44, D. Froidevaux30, J.A. Frost28, C. Fukunaga158, E. Fullana Torregrosa83, B.G. Fulsom145,

J. Fuster169_{, C. Gabaldon}55_{, O. Gabizon}177_{, A. Gabrielli}20a,20b_{, A. Gabrielli}134a,134b_{, S. Gadatsch}107_{, S. Gadomski}49_,

G. Gagliardi50a,50b_{, P. Gagnon}61_{, C. Galea}106_{, B. Galhardo}126a,126c_{, E.J. Gallas}120_{, V. Gallo}17_{, B.J. Gallop}131_,

P. Gallus128_{, G. Galster}36_{, K.K. Gan}111_{, J. Gao}33b,h_{, Y.S. Gao}145,f_{, F.M. Garay Walls}46_{, F. Garberson}178_,

C. Garc´ıa169_{, J.E. Garc´ıa Navarro}169_{, M. Garcia-Sciveres}15_{, R.W. Gardner}31_{, N. Garelli}145_{, V. Garonne}30_,

C. Gatti47, G. Gaudio121a, B. Gaur143, L. Gauthier95, P. Gauzzi134a,134b, I.L. Gavrilenko96, C. Gay170, G. Gaycken21, E.N. Gazis10, P. Ge33d, Z. Gecse170, C.N.P. Gee131, D.A.A. Geerts107, Ch. Geich-Gimbel21,

K. Gellerstedt148a,148b_{, C. Gemme}50a_{, A. Gemmell}53_{, M.H. Genest}55_{, S. Gentile}134a,134b_{, M. George}54_{, S. George}77_,

D. Gerbaudo165_{, A. Gershon}155_{, H. Ghazlane}137b_{, N. Ghodbane}34_{, B. Giacobbe}20a_{, S. Giagu}134a,134b_,

V. Giangiobbe12_{, P. Giannetti}124a,124b_{, F. Gianotti}30_{, B. Gibbard}25_{, S.M. Gibson}77_{, M. Gilchriese}15_,

T.P.S. Gillam28, D. Gillberg30, G. Gilles34, D.M. Gingrich3,e, N. Giokaris9, M.P. Giordani166a,166c,

R. Giordano104a,104b, F.M. Giorgi20a, F.M. Giorgi16, P.F. Giraud138, D. Giugni91a, C. Giuliani48, M. Giulini58b, B.K. Gjelsten119_{, S. Gkaitatzis}156_{, I. Gkialas}156,l_{, L.K. Gladilin}99_{, C. Glasman}82_{, J. Glatzer}30_{, P.C.F. Glaysher}46_,

A. Glazov42_{, G.L. Glonti}65_{, M. Goblirsch-Kolb}101_{, J.R. Goddard}76_{, J. Godlewski}30_{, C. Goeringer}83_{, S. Goldfarb}89_,

T. Golling178_{, D. Golubkov}130_{, A. Gomes}126a,126b,126d_{, L.S. Gomez Fajardo}42_{, R. Gon¸calo}126a_,

J. Goncalves Pinto Firmino Da Costa138_{, L. Gonella}21_{, S. Gonz´alez de la Hoz}169_{, G. Gonzalez Parra}12_,

S. Gonzalez-Sevilla49, L. Goossens30, P.A. Gorbounov97, H.A. Gordon25, I. Gorelov105, B. Gorini30, E. Gorini73a,73b, A. Goriˇsek75_{, E. Gornicki}39_{, A.T. Goshaw}6_{, C. G¨ossling}43_{, M.I. Gostkin}65_{, M. Gouighri}137a_{, D. Goujdami}137c_,

M.P. Goulette49_{, A.G. Goussiou}140_{, C. Goy}5_{, S. Gozpinar}23_{, H.M.X. Grabas}139_{, L. Graber}54_{, I. Grabowska-Bold}38a_,

P. Grafstr¨om20a,20b_{, K-J. Grahn}42_{, J. Gramling}49_{, E. Gramstad}119_{, S. Grancagnolo}16_{, V. Grassi}150_{, V. Gratchev}123_,

H.M. Gray30_{, E. Graziani}136a_{, O.G. Grebenyuk}123_{, Z.D. Greenwood}79,m_{, K. Gregersen}78_{, I.M. Gregor}42_,

P. Grenier145, J. Griffiths8, A.A. Grillo139, K. Grimm72, S. Grinstein12,n, Ph. Gris34, Y.V. Grishkevich99, J.-F. Grivaz117, J.P. Grohs44, A. Grohsjean42, E. Gross174, J. Grosse-Knetter54, G.C. Grossi135a,135b, J. Groth-Jensen174_{, Z.J. Grout}151_{, L. Guan}33b_{, J. Guenther}128_{, F. Guescini}49_{, D. Guest}178_{, O. Gueta}155_,

C. Guicheney34_{, E. Guido}50a,50b_{, T. Guillemin}117_{, S. Guindon}2_{, U. Gul}53_{, C. Gumpert}44_{, J. Guo}35_{, S. Gupta}120_,

P. Gutierrez113_{, N.G. Gutierrez Ortiz}53_{, C. Gutschow}78_{, N. Guttman}155_{, C. Guyot}138_{, C. Gwenlan}120_,

C.B. Gwilliam74, A. Haas110, C. Haber15, H.K. Hadavand8, N. Haddad137e, P. Haefner21, S. Hageb¨ock21, Z. Hajduk39, H. Hakobyan179, M. Haleem42, D. Hall120, G. Halladjian90, K. Hamacher177, P. Hamal115, K. Hamano171_{, M. Hamer}54_{, A. Hamilton}147a_{, S. Hamilton}163_{, G.N. Hamity}147c_{, P.G. Hamnett}42_{, L. Han}33b_,

K. Hanagaki118_{, K. Hanawa}157_{, M. Hance}15_{, P. Hanke}58a_{, R. Hanna}138_{, J.B. Hansen}36_{, J.D. Hansen}36_,

P.H. Hansen36_{, K. Hara}162_{, A.S. Hard}175_{, T. Harenberg}177_{, F. Hariri}117_{, S. Harkusha}92_{, D. Harper}89_,

R.D. Harrington46_{, O.M. Harris}140_{, P.F. Harrison}172_{, F. Hartjes}107_{, M. Hasegawa}67_{, S. Hasegawa}103_,

Y. Hasegawa142, A. Hasib113, S. Hassani138, S. Haug17, M. Hauschild30, R. Hauser90, M. Havranek127,

C.M. Hawkes18, R.J. Hawkings30, A.D. Hawkins81, T. Hayashi162, D. Hayden90, C.P. Hays120, H.S. Hayward74, S.J. Haywood131_{, S.J. Head}18_{, T. Heck}83_{, V. Hedberg}81_{, L. Heelan}8_{, S. Heim}122_{, T. Heim}177_{, B. Heinemann}15_,

L. Heinrich110_{, J. Hejbal}127_{, L. Helary}22_{, C. Heller}100_{, M. Heller}30_{, S. Hellman}148a,148b_{, D. Hellmich}21_{, C. Helsens}30_,

J. Henderson120_{, R.C.W. Henderson}72_{, Y. Heng}175_{, C. Hengler}42_{, A. Henrichs}178_{, A.M. Henriques Correia}30_,

S. Henrot-Versille117, G.H. Herbert16, Y. Hern´andez Jim´enez169, R. Herrberg-Schubert16, G. Herten48,

R. Hertenberger100, L. Hervas30, G.G. Hesketh78, N.P. Hessey107, R. Hickling76, E. Hig´on-Rodriguez169, E. Hill171, J.C. Hill28_{, K.H. Hiller}42_{, S. Hillert}21_{, S.J. Hillier}18_{, I. Hinchliffe}15_{, E. Hines}122_{, M. Hirose}159_{, D. Hirschbuehl}177_,

J. Hobbs150_{, N. Hod}107_{, M.C. Hodgkinson}141_{, P. Hodgson}141_{, A. Hoecker}30_{, M.R. Hoeferkamp}105_{, F. Hoenig}100_,

J. Hoffman40_{, D. Hoffmann}85_{, J.I. Hofmann}58a_{, M. Hohlfeld}83_{, T.R. Holmes}15_{, T.M. Hong}122_,

L. Hooft van Huysduynen110_{, W.H. Hopkins}116_{, Y. Horii}103_{, J-Y. Hostachy}55_{, S. Hou}153_{, A. Hoummada}137a_,

J. Howard120, J. Howarth42, M. Hrabovsky115, I. Hristova16, J. Hrivnac117, T. Hryn’ova5, C. Hsu147c, P.J. Hsu83, S.-C. Hsu140_{, D. Hu}35_{, X. Hu}89_{, Y. Huang}42_{, Z. Hubacek}30_{, F. Hubaut}85_{, F. Huegging}21_{, T.B. Huffman}120_,

E.W. Hughes35_{, G. Hughes}72_{, M. Huhtinen}30_{, T.A. H¨ulsing}83_{, M. Hurwitz}15_{, N. Huseynov}65,b_{, J. Huston}90_,

J. Huth57_{, G. Iacobucci}49_{, G. Iakovidis}10_{, I. Ibragimov}143_{, L. Iconomidou-Fayard}117_{, E. Ideal}178_{, Z. Idrissi}137e_,

P. Iengo104a_{, O. Igonkina}107_{, T. Iizawa}173_{, Y. Ikegami}66_{, K. Ikematsu}143_{, M. Ikeno}66_{, Y. Ilchenko}31,o_{, D. Iliadis}156_,

N. Ilic160, Y. Inamaru67, T. Ince101, P. Ioannou9, M. Iodice136a, K. Iordanidou9, V. Ippolito57, A. Irles Quiles169, C. Isaksson168, M. Ishino68, M. Ishitsuka159, R. Ishmukhametov111, C. Issever120, S. Istin19a, J.M. Iturbe Ponce84, R. Iuppa135a,135b_{, J. Ivarsson}81_{, W. Iwanski}39_{, H. Iwasaki}66_{, J.M. Izen}41_{, V. Izzo}104a_{, B. Jackson}122_{, M. Jackson}74_,

D.K. Jana79, E. Jansen78, H. Jansen30, J. Janssen21, M. Janus172, G. Jarlskog81, N. Javadov65,b, T. Jav˚urek48, L. Jeanty15, J. Jejelava51a,p, G.-Y. Jeng152, D. Jennens88, P. Jenni48,q, J. Jentzsch43, C. Jeske172, S. J´ez´equel5, H. Ji175_{, J. Jia}150_{, Y. Jiang}33b_{, M. Jimenez Belenguer}42_{, S. Jin}33a_{, A. Jinaru}26a_{, O. Jinnouchi}159_,

M.D. Joergensen36_{, K.E. Johansson}148a,148b_{, P. Johansson}141_{, K.A. Johns}7_{, K. Jon-And}148a,148b_{, G. Jones}172_,

R.W.L. Jones72_{, T.J. Jones}74_{, J. Jongmanns}58a_{, P.M. Jorge}126a,126b_{, K.D. Joshi}84_{, J. Jovicevic}149_{, X. Ju}175_,

C.A. Jung43, R.M. Jungst30, P. Jussel62, A. Juste Rozas12,n, M. Kaci169, A. Kaczmarska39, M. Kado117,

H. Kagan111, M. Kagan145, E. Kajomovitz45, C.W. Kalderon120, S. Kama40, A. Kamenshchikov130, N. Kanaya157, M. Kaneda30_{, S. Kaneti}28_{, V.A. Kantserov}98_{, J. Kanzaki}66_{, B. Kaplan}110_{, A. Kapliy}31_{, D. Kar}53_{, K. Karakostas}10_,

N. Karastathis10_{, M.J. Kareem}54_{, M. Karnevskiy}83_{, S.N. Karpov}65_{, Z.M. Karpova}65_{, K. Karthik}110_,

V. Kartvelishvili72_{, A.N. Karyukhin}130_{, L. Kashif}175_{, G. Kasieczka}58b_{, R.D. Kass}111_{, A. Kastanas}14_{, Y. Kataoka}157_,

A. Katre49_{, J. Katzy}42_{, V. Kaushik}7_{, K. Kawagoe}70_{, T. Kawamoto}157_{, G. Kawamura}54_{, S. Kazama}157_,

V.F. Kazanin109, M.Y. Kazarinov65, R. Keeler171, R. Kehoe40, M. Keil54, J.S. Keller42, J.J. Kempster77, H. Keoshkerian5, O. Kepka127, B.P. Kerˇsevan75, S. Kersten177, K. Kessoku157, J. Keung160, F. Khalil-zada11, H. Khandanyan148a,148b_{, A. Khanov}114_{, A. Khodinov}98_{, A. Khomich}58a_{, T.J. Khoo}28_{, G. Khoriauli}21_,

A. Khoroshilov177_{, V. Khovanskiy}97_{, E. Khramov}65_{, J. Khubua}51b_{, H.Y. Kim}8_{, H. Kim}148a,148b_{, S.H. Kim}162_,

N. Kimura173_{, O. Kind}16_{, B.T. King}74_{, M. King}169_{, R.S.B. King}120_{, S.B. King}170_{, J. Kirk}131_{, A.E. Kiryunin}101_,

T. Kishimoto67, D. Kisielewska38a, F. Kiss48, T. Kittelmann125, K. Kiuchi162, E. Kladiva146b, M. Klein74, U. Klein74, K. Kleinknecht83, P. Klimek148a,148b, A. Klimentov25, R. Klingenberg43, J.A. Klinger84,

T. Klioutchnikova30_{, P.F. Klok}106_{, E.-E. Kluge}58a_{, P. Kluit}107_{, S. Kluth}101_{, E. Kneringer}62_{, E.B.F.G. Knoops}85_,

A. Knue53_{, D. Kobayashi}159_{, T. Kobayashi}157_{, M. Kobel}44_{, M. Kocian}145_{, P. Kodys}129_{, P. Koevesarki}21_{, T. Koffas}29_,

E. Koffeman107_{, L.A. Kogan}120_{, S. Kohlmann}177_{, Z. Kohout}128_{, T. Kohriki}66_{, T. Koi}145_{, H. Kolanoski}16_,

I. Koletsou5_{, J. Koll}90_{, A.A. Komar}96,∗_{, Y. Komori}157_{, T. Kondo}66_{, N. Kondrashova}42_{, K. K¨oneke}48_{, A.C. K¨onig}106_,

S. K¨onig83, T. Kono66,r, R. Konoplich110,s, N. Konstantinidis78, R. Kopeliansky154, S. Koperny38a, L. K¨opke83, A.K. Kopp48_{, K. Korcyl}39_{, K. Kordas}156_{, A. Korn}78_{, A.A. Korol}109,c_{, I. Korolkov}12_{, E.V. Korolkova}141_,

V.A. Korotkov130_{, O. Kortner}101_{, S. Kortner}101_{, V.V. Kostyukhin}21_{, V.M. Kotov}65_{, A. Kotwal}45_{, C. Kourkoumelis}9_,

V. Kouskoura156_{, A. Koutsman}161a_{, R. Kowalewski}171_{, T.Z. Kowalski}38a_{, W. Kozanecki}138_{, A.S. Kozhin}130_,

V. Kral128_{, V.A. Kramarenko}99_{, G. Kramberger}75_{, D. Krasnopevtsev}98_{, M.W. Krasny}80_{, A. Krasznahorkay}30_,

J.K. Kraus21, A. Kravchenko25, S. Kreiss110, M. Kretz58c, J. Kretzschmar74, K. Kreutzfeldt52, P. Krieger160, K. Kroeninger54, H. Kroha101, J. Kroll122, J. Kroseberg21, J. Krstic13a, U. Kruchonak65, H. Kr¨uger21, T. Kruker17, N. Krumnack64_{, Z.V. Krumshteyn}65_{, A. Kruse}175_{, M.C. Kruse}45_{, M. Kruskal}22_{, T. Kubota}88_{, S. Kuday}4c_,

S. Kuehn48_{, A. Kugel}58c_{, A. Kuhl}139_{, T. Kuhl}42_{, V. Kukhtin}65_{, Y. Kulchitsky}92_{, S. Kuleshov}32b_{, M. Kuna}134a,134b_,

J. Kunkle122_{, A. Kupco}127_{, H. Kurashige}67_{, Y.A. Kurochkin}92_{, R. Kurumida}67_{, V. Kus}127_{, E.S. Kuwertz}149_,

M. Kuze159, J. Kvita115, A. La Rosa49, L. La Rotonda37a,37b, C. Lacasta169, F. Lacava134a,134b, J. Lacey29, H. Lacker16, D. Lacour80, V.R. Lacuesta169, E. Ladygin65, R. Lafaye5, B. Laforge80, T. Lagouri178, S. Lai48, H. Laier58a_{, L. Lambourne}78_{, S. Lammers}61_{, C.L. Lampen}7_{, W. Lampl}7_{, E. Lan¸con}138_{, U. Landgraf}48_,

M.P.J. Landon76_{, V.S. Lang}58a_{, A.J. Lankford}165_{, F. Lanni}25_{, K. Lantzsch}30_{, S. Laplace}80_{, C. Lapoire}21_,

J.F. Laporte138_{, T. Lari}91a_{, F. Lasagni Manghi}20a,20b_{, M. Lassnig}30_{, P. Laurelli}47_{, W. Lavrijsen}15_{, A.T. Law}139_,

P. Laycock74_{, O. Le Dortz}80_{, E. Le Guirriec}85_{, E. Le Menedeu}12_{, T. LeCompte}6_{, F. Ledroit-Guillon}55_{, C.A. Lee}153_,

H. Lee107, J.S.H. Lee118, S.C. Lee153, L. Lee1, G. Lefebvre80, M. Lefebvre171, F. Legger100, C. Leggett15, A. Lehan74, M. Lehmacher21, G. Lehmann Miotto30, X. Lei7, W.A. Leight29, A. Leisos156, A.G. Leister178,

M.A.L. Leite24d_{, R. Leitner}129_{, D. Lellouch}174_{, B. Lemmer}54_{, K.J.C. Leney}78_{, T. Lenz}21_{, G. Lenzen}177_{, B. Lenzi}30_,

R. Leone7_{, S. Leone}124a,124b_{, C. Leonidopoulos}46_{, S. Leontsinis}10_{, C. Leroy}95_{, C.G. Lester}28_{, C.M. Lester}122_,

M. Levchenko123_{, J. Levˆeque}5_{, D. Levin}89_{, L.J. Levinson}174_{, M. Levy}18_{, A. Lewis}120_{, G.H. Lewis}110_{, A.M. Leyko}21_,

M. Leyton41, B. Li33b,t, B. Li85, H. Li150, H.L. Li31, L. Li45, L. Li33e, S. Li45, Y. Li33c,u, Z. Liang139, H. Liao34, B. Liberti135a, P. Lichard30, K. Lie167, J. Liebal21, W. Liebig14, C. Limbach21, A. Limosani88, S.C. Lin153,v, T.H. Lin83_{, F. Linde}107_{, B.E. Lindquist}150_{, J.T. Linnemann}90_{, E. Lipeles}122_{, A. Lipniacka}14_{, M. Lisovyi}42_,

T.M. Liss167_{, D. Lissauer}25_{, A. Lister}170_{, A.M. Litke}139_{, B. Liu}153_{, D. Liu}153_{, J.B. Liu}33b_{, K. Liu}33b,w_{, L. Liu}89_,

M. Liu45_{, M. Liu}33b_{, Y. Liu}33b_{, M. Livan}121a,121b_{, S.S.A. Livermore}120_{, A. Lleres}55_{, J. Llorente Merino}82_,

S.L. Lloyd76_{, F. Lo Sterzo}153_{, E. Lobodzinska}42_{, P. Loch}7_{, W.S. Lockman}139_{, T. Loddenkoetter}21_{, F.K. Loebinger}84_,

A.E. Loevschall-Jensen36, A. Loginov178, T. Lohse16, K. Lohwasser42, M. Lokajicek127, V.P. Lombardo5, B.A. Long22_{, J.D. Long}89_{, R.E. Long}72_{, L. Lopes}126a_{, D. Lopez Mateos}57_{, B. Lopez Paredes}141_{, I. Lopez Paz}12_,

J. Lorenz100_{, N. Lorenzo Martinez}61_{, M. Losada}164_{, P. Loscutoff}15_{, X. Lou}41_{, A. Lounis}117_{, J. Love}6_{, P.A. Love}72_,

A.J. Lowe145,f_{, F. Lu}33a_{, N. Lu}89_{, H.J. Lubatti}140_{, C. Luci}134a,134b_{, A. Lucotte}55_{, F. Luehring}61_{, W. Lukas}62_,

L. Luminari134a_{, O. Lundberg}148a,148b_{, B. Lund-Jensen}149_{, M. Lungwitz}83_{, D. Lynn}25_{, R. Lysak}127_{, E. Lytken}81_,

H. Ma25, L.L. Ma33d, G. Maccarrone47, A. Macchiolo101, J. Machado Miguens126a,126b, D. Macina30, D. Madaffari85, R. Madar48, H.J. Maddocks72, W.F. Mader44, A. Madsen168, M. Maeno8, T. Maeno25, A. Maevskiy99,

E. Magradze54_{, K. Mahboubi}48_{, J. Mahlstedt}107_{, S. Mahmoud}74_{, C. Maiani}138_{, C. Maidantchik}24a_{, A.A. Maier}101_,

V.P. Maleev123, F. Malek55, U. Mallik63, D. Malon6, C. Malone145, S. Maltezos10, V.M. Malyshev109,

S. Malyukov30, J. Mamuzic13b, B. Mandelli30, L. Mandelli91a, I. Mandi´c75, R. Mandrysch63, J. Maneira126a,126b, A. Manfredini101_{, L. Manhaes de Andrade Filho}24b_{, J.A. Manjarres Ramos}161b_{, A. Mann}100_{, P.M. Manning}139_,

A. Manousakis-Katsikakis9_{, B. Mansoulie}138_{, R. Mantifel}87_{, L. Mapelli}30_{, L. March}147c_{, J.F. Marchand}29_,

G. Marchiori80_{, M. Marcisovsky}127_{, C.P. Marino}171_{, M. Marjanovic}13a_{, C.N. Marques}126a_{, F. Marroquim}24a_,

S.P. Marsden84, Z. Marshall15, L.F. Marti17, S. Marti-Garcia169, B. Martin30, B. Martin90, T.A. Martin172, V.J. Martin46, B. Martin dit Latour14, H. Martinez138, M. Martinez12,n, S. Martin-Haugh131, A.C. Martyniuk78, M. Marx140_{, F. Marzano}134a_{, A. Marzin}30_{, L. Masetti}83_{, T. Mashimo}157_{, R. Mashinistov}96_{, J. Masik}84_,

A.L. Maslennikov109,c_{, I. Massa}20a,20b_{, L. Massa}20a,20b_{, N. Massol}5_{, P. Mastrandrea}150_{, A. Mastroberardino}37a,37b_,

T. Masubuchi157_{, P. M¨attig}177_{, J. Mattmann}83_{, J. Maurer}26a_{, S.J. Maxfield}74_{, D.A. Maximov}109,c_{, R. Mazini}153_,

L. Mazzaferro135a,135b_{, G. Mc Goldrick}160_{, S.P. Mc Kee}89_{, A. McCarn}89_{, R.L. McCarthy}150_{, T.G. McCarthy}29_,

N.A. McCubbin131, K.W. McFarlane56,∗, J.A. Mcfayden78, G. Mchedlidze54, S.J. McMahon131,

R.A. McPherson171,j, J. Mechnich107, M. Medinnis42, S. Meehan31, S. Mehlhase100, A. Mehta74, K. Meier58a, C. Meineck100_{, B. Meirose}81_{, C. Melachrinos}31_{, B.R. Mellado Garcia}147c_{, F. Meloni}17_{, A. Mengarelli}20a,20b_,

S. Menke101_{, E. Meoni}163_{, K.M. Mercurio}57_{, S. Mergelmeyer}21_{, N. Meric}138_{, P. Mermod}49_{, L. Merola}104a,104b_,

C. Meroni91a_{, F.S. Merritt}31_{, H. Merritt}111_{, A. Messina}30,y_{, J. Metcalfe}25_{, A.S. Mete}165_{, C. Meyer}83_{, C. Meyer}122_,

J-P. Meyer138, J. Meyer30, R.P. Middleton131, S. Migas74, L. Mijovi´c21, G. Mikenberg174, M. Mikestikova127, M. Mikuˇz75, A. Milic30, D.W. Miller31, C. Mills46, A. Milov174, D.A. Milstead148a,148b, D. Milstein174, A.A. Minaenko130_{, Y. Minami}157_{, I.A. Minashvili}65_{, A.I. Mincer}110_{, B. Mindur}38a_{, M. Mineev}65_{, Y. Ming}175_,

L.M. Mir12_{, G. Mirabelli}134a_{, T. Mitani}173_{, J. Mitrevski}100_{, V.A. Mitsou}169_{, S. Mitsui}66_{, A. Miucci}49_,

P.S. Miyagawa141_{, J.U. Mj¨ornmark}81_{, T. Moa}148a,148b_{, K. Mochizuki}85_{, S. Mohapatra}35_{, W. Mohr}48_,

S. Molander148a,148b_{, R. Moles-Valls}169_{, K. M¨onig}42_{, C. Monini}55_{, J. Monk}36_{, E. Monnier}85_{, J. Montejo Berlingen}12_,

F. Monticelli71, S. Monzani134a,134b, R.W. Moore3, N. Morange63, D. Moreno83, M. Moreno Ll´acer54, P. Morettini50a_{, M. Morgenstern}44_{, M. Morii}57_{, S. Moritz}83_{, A.K. Morley}149_{, G. Mornacchi}30_{, J.D. Morris}76_,

L. Morvaj103_{, H.G. Moser}101_{, M. Mosidze}51b_{, J. Moss}111_{, K. Motohashi}159_{, R. Mount}145_{, E. Mountricha}25_,

S.V. Mouraviev96,∗_{, E.J.W. Moyse}86_{, S. Muanza}85_{, R.D. Mudd}18_{, F. Mueller}58a_{, J. Mueller}125_{, K. Mueller}21_,

T. Mueller28_{, T. Mueller}83_{, D. Muenstermann}49_{, Y. Munwes}155_{, J.A. Murillo Quijada}18_{, W.J. Murray}172,131_,

H. Musheghyan54, E. Musto154, A.G. Myagkov130,z, M. Myska128, O. Nackenhorst54, J. Nadal54, K. Nagai62, R. Nagai159, Y. Nagai85, K. Nagano66, A. Nagarkar111, Y. Nagasaka59, M. Nagel101, A.M. Nairz30, Y. Nakahama30, K. Nakamura66_{, T. Nakamura}157_{, I. Nakano}112_{, H. Namasivayam}41_{, G. Nanava}21_{, R. Narayan}58b_{, T. Nattermann}21_,

T. Naumann42_{, G. Navarro}164_{, R. Nayyar}7_{, H.A. Neal}89_{, P.Yu. Nechaeva}96_{, T.J. Neep}84_{, P.D. Nef}145_,

A. Negri121a,121b_{, G. Negri}30_{, M. Negrini}20a_{, S. Nektarijevic}49_{, C. Nellist}117_{, A. Nelson}165_{, T.K. Nelson}145_,

S. Nemecek127, P. Nemethy110, A.A. Nepomuceno24a, M. Nessi30,aa, M.S. Neubauer167, M. Neumann177,

R.M. Neves110, P. Nevski25, P.R. Newman18, D.H. Nguyen6, R.B. Nickerson120, R. Nicolaidou138, B. Nicquevert30, J. Nielsen139_{, N. Nikiforou}35_{, A. Nikiforov}16_{, V. Nikolaenko}130,z_{, I. Nikolic-Audit}80_{, K. Nikolics}49_,

K. Nikolopoulos18_{, P. Nilsson}8_{, Y. Ninomiya}157_{, A. Nisati}134a_{, R. Nisius}101_{, T. Nobe}159_{, L. Nodulman}6_,

M. Nomachi118_{, I. Nomidis}29_{, S. Norberg}113_{, M. Nordberg}30_{, O. Novgorodova}44_{, S. Nowak}101_{, M. Nozaki}66_,

L. Nozka115_{, K. Ntekas}10_{, G. Nunes Hanninger}88_{, T. Nunnemann}100_{, E. Nurse}78_{, F. Nuti}88_{, B.J. O’Brien}46_,

F. O’grady7, D.C. O’Neil144, V. O’Shea53, F.G. Oakham29,e, H. Oberlack101, T. Obermann21, J. Ocariz80, A. Ochi67, M.I. Ochoa78, S. Oda70, S. Odaka66, H. Ogren61, A. Oh84, S.H. Oh45, C.C. Ohm15, H. Ohman168, W. Okamura118_{, H. Okawa}25_{, Y. Okumura}31_{, T. Okuyama}157_{, A. Olariu}26a_{, A.G. Olchevski}65_{, S.A. Olivares Pino}46_,

D. Oliveira Damazio25_{, E. Oliver Garcia}169_{, A. Olszewski}39_{, J. Olszowska}39_{, A. Onofre}126a,126e_{, P.U.E. Onyisi}31,o_,

C.J. Oram161a_{, M.J. Oreglia}31_{, Y. Oren}155_{, D. Orestano}136a,136b_{, N. Orlando}73a,73b_{, C. Oropeza Barrera}53_,

R.S. Orr160, B. Osculati50a,50b, R. Ospanov122, G. Otero y Garzon27, H. Otono70, M. Ouchrif137d, E.A. Ouellette171, F. Ould-Saada119, A. Ouraou138, K.P. Oussoren107, Q. Ouyang33a, A. Ovcharova15, M. Owen84, V.E. Ozcan19a, N. Ozturk8_{, K. Pachal}120_{, A. Pacheco Pages}12_{, C. Padilla Aranda}12_{, M. Pag´aˇcov´a}48_{, S. Pagan Griso}15_,

E. Paganis141_{, C. Pahl}101_{, F. Paige}25_{, P. Pais}86_{, K. Pajchel}119_{, G. Palacino}161b_{, S. Palestini}30_{, M. Palka}38b_,

D. Pallin34_{, A. Palma}126a,126b_{, J.D. Palmer}18_{, Y.B. Pan}175_{, E. Panagiotopoulou}10_{, J.G. Panduro Vazquez}77_,

P. Pani107_{, N. Panikashvili}89_{, S. Panitkin}25_{, D. Pantea}26a_{, L. Paolozzi}135a,135b_{, Th.D. Papadopoulou}10_,

K. Papageorgiou156,l, A. Paramonov6, D. Paredes Hernandez34, M.A. Parker28, F. Parodi50a,50b, J.A. Parsons35, U. Parzefall48_{, E. Pasqualucci}134a_{, S. Passaggio}50a_{, A. Passeri}136a_{, F. Pastore}136a,136b,∗_{, Fr. Pastore}77_{, G. P´asztor}29_,

S. Pataraia177_{, N.D. Patel}152_{, J.R. Pater}84_{, S. Patricelli}104a,104b_{, T. Pauly}30_{, J. Pearce}171_{, L.E. Pedersen}36_,

M. Pedersen119_{, S. Pedraza Lopez}169_{, R. Pedro}126a,126b_{, S.V. Peleganchuk}109_{, D. Pelikan}168_{, H. Peng}33b_,

B. Penning31_{, J. Penwell}61_{, D.V. Perepelitsa}25_{, E. Perez Codina}161a_{, M.T. P´erez Garc´ıa-Esta˜n}169_{, V. Perez Reale}35_,

L. Perini91a,91b, H. Pernegger30, S. Perrella104a,104b, R. Perrino73a, R. Peschke42, V.D. Peshekhonov65, K. Peters30, R.F.Y. Peters84, B.A. Petersen30, T.C. Petersen36, E. Petit42, A. Petridis148a,148b, C. Petridou156, E. Petrolo134a, F. Petrucci136a,136b_{, N.E. Pettersson}159_{, R. Pezoa}32b_{, P.W. Phillips}131_{, G. Piacquadio}145_{, E. Pianori}172_{, A. Picazio}49_,