Search for events with large missing transverse momentum, jets, and at least two tau leptons in 7 TeV proton-proton collision data with the ATLAS detector

arXiv:1203.6580v2 [hep-ex] 28 Jul 2012

EUROPEAN ORGANISATION FOR NUCLEAR RESEARCH (CERN)

CERN-PH-EP-2012-054

Submitted to: Physics Letters B

Search for Events with Large Missing Transverse Momentum,

Jets, and at Least Two Tau Leptons in 7 TeV Proton-Proton

Collision Data with the ATLAS Detector

The ATLAS Collaboration

Abstract

A search for events with large missing transverse momentum, jets, and at least two tau leptons

has been performed using 2 fb

−1

of proton-proton collision data at

√

s = 7 TeV

recorded with the

ATLAS detector at the Large Hadron Collider. No excess above the Standard Model background

expectation is observed and a 95% CL upper limit on the visible cross section for new phenomena

is set, where the visible cross section is defined by the product of cross section, branching fraction,

detector acceptance and event selection efficiency. A 95% CL lower limit of 32 TeV is set on the

gauge-mediated supersymmetry breaking scale

Λ

independent of

tan β

. These limits provide the

most stringent tests to date in a large part of the considered parameter space.

Search for Events with Large Missing Transverse Momentum, Jets, and at Least

Two Tau Leptons in 7 TeV Proton-Proton Collision Data with the ATLAS Detector

The ATLAS Collaboration

Abstract

A search for events with large missing transverse momentum, jets, and at least two tau leptons has been performed using 2 fb−1 _{of proton-proton collision data at}√_{s = 7 TeV recorded with the ATLAS detector at the Large Hadron Collider.}

No excess above the Standard Model background expectation is observed and a 95% CL upper limit on the visible cross section for new phenomena is set, where the visible cross section is defined by the product of cross section, branching fraction, detector acceptance and event selection efficiency. A 95 % CL lower limit of 32 TeV is set on the gauge-mediated supersymmetry breaking (GMSB) scale Λ independent of tan β. These limits provide the most stringent tests to date in a large part of the considered parameter space.

1. Introduction

Supersymmetry (SUSY) [1–5] introduces a symmetry between fermions and bosons, resulting in a SUSY part-ner (sparticle) for each Standard Model (SM) particle with identical mass and quantum numbers except a difference by half a unit of spin. As none of these sparticles have been observed, SUSY must be a broken symmetry if realised in nature. Assuming R-parity conservation [6, 7], sparticles are produced in pairs. These would then decay through cascades involving other sparticles until the lightest SUSY particle (LSP) is produced, which is stable.

Minimal gauge-mediated supersymmetry breaking (GMSB) [8–13] models can be described by six parame-ters: the SUSY breaking mass scale felt by the low-energy sector (Λ), the messenger mass (Mmess), the number

of SU(5) messengers (N5), the ratio of the vacuum

expectation values of the two Higgs doublets (tan β), the Higgs sector mixing parameter (µ) and the scale factor for the gravitino mass (Cgrav). In this analysis Λ

and tan β are treated as free parameters and the other parameters are fixed to Mmess= 250 TeV, N5 = 3, µ > 0

and Cgrav = 1, similar to other GMSB benchmark points

in the literature, e.g. G2a [14] and SPS7 [15]. The Cgrav

parameter determines the lifetime of the next-to-lightest SUSY particle (NLSP). For Cgrav = 1 the NLSP decays

promptly (cτNLSP< 0.1 mm). With these parameters, the

production of squark and/or gluino pairs is expected to dominate at the present Large Hadron Collider (LHC) en-ergy. These sparticles decay directly or through cascades into the NLSP, which subsequently decays to the LSP. In GMSB models, the LSP is the very light gravitino ( ˜G). Due to the gravitino’s very small mass of O(keV), the NLSP is the only sparticle decaying into the LSP. This leads to multiple jets and missing transverse momentum (Emiss

T ) in the final states. The experimental signature

is then largely determined by the nature of the NLSP, which can be either the lightest stau (˜τ1), a right handed

slepton (˜ℓR), the lightest neutralino ( ˜χ01), or a sneutrino

(˜ν), leading to final states containing taus, light leptons (ℓ = e, µ), photons, b-jets, or neutrinos. For N5 = 3 the

˜

τ1 and ˜ℓR NLSPs become more dominant compared to

lower values of N5. At large values of tan β, the ˜τ1 is the

NLSP for most of the parameter space, which leads to final states containing between two and four tau leptons. In the so-called CoNLSP [16] region, the mass difference between the ˜τ1 and the ˜ℓR is smaller than the tau lepton

mass such that both sparticles decay directly into the LSP and are therefore NLSP.

This Letter reports on the search for events with large Emiss

T , jets, and at least two hadronically decaying tau

lep-tons. The analysis has been performed using 2 fb−1 _of

proton-proton (pp) collision data at√s = 7 TeV recorded with the ATLAS detector at the LHC between March and August 2011. Although the analysis is sensitive to a wide variety of models for physics beyond the Standard Model, the results shown here are interpreted in the con-text of a minimal GMSB model. The three LEP Col-laborations ALEPH [17], DELPHI [18] and OPAL [19] studied ˜τ1 pair production, with the subsequent decay

˜

τ1 → τ ˜G in the minimal GMSB model. The best

lim-its are set by the OPAL Collaboration and ˜τ1NLSPs with

masses below 87.4 GeV are excluded. A limit on the SUSY breaking mass scale Λ of 26 TeV was set for N5 = 3,

Mmess = 250 TeV, independent of tan β and the NLSP

lifetime. The CMS Collaboration searched for new physics in same-sign ditau events [20] and multi-lepton events in-cluding ditaus [21] using 35 pb−1 _{of data, but the minimal}

GMSB model was not considered. A search for supersym-metry in final states containing at least one hadronically decaying tau lepton, missing transverse momentum and jets with the ATLAS detector is presented in another

Let-ter [22].

2. ATLAS detector

The ATLAS detector [23] is a multi-purpose appara-tus with a forward-backward symmetric cylindrical geom-etry and nearly 4π solid angle coverage. The inner track-ing detector (ID) consists of a silicon pixel detector, a silicon strip detector and a transition radiation tracker. The ID is surrounded by a thin superconducting solenoid providing a 2 T magnetic field and by fine-granularity lead/liquid-argon (LAr) electromagnetic calorimeters. An iron/scintillating-tile calorimeter provides hadronic cover-age in the central rapidity1range. The endcap and forward regions are instrumented with liquid-argon calorimeters for both electromagnetic and hadronic measurements. An ex-tensive muon spectrometer system that incorporates large superconducting toroidal magnets surrounds the calorime-ters.

3. Simulated samples

Monte Carlo (MC) simulations are used to extrapo-late backgrounds from control regions (CRs) to the sig-nal region (SR) and to evaluate the selection efficiencies for the SUSY models considered. Samples of W and Z/γ∗ _{production with accompanying jets are simulated}

with ALPGEN [24], using CTEQ6L1 [25] parton density func-tions (PDFs). Top quark pair production, single top pro-duction and diboson pair propro-duction are simulated with MC@NLO[26–28] and the next-to-leading order (NLO) PDF set CTEQ6.6 [29]. Fragmentation and hadronisation are performed with HERWIG [30], using JIMMY [31] for the un-derlying event simulation and the ATLAS MC10 parame-ter tune [32]. TAUOLA [33, 34] and PHOTOS [35] are used to model the decays of τ leptons and the radiation of photons, respectively. The production of multi-jet events is simu-lated with PYTHIA 6.4.25 [36] using the AMBT1 tune [37] and MRST2007 LO∗ _{[38] PDFs. For the minimal GMSB}

model considered in this analysis, the SUSY mass spec-tra are calculated using ISAJET 7.80 [39]. The MC sig-nal samples are produced using HERWIG++ 2.4.2 [40] with MRST2007 LO∗ _{PDFs. NLO cross sections are calculated}

using PROSPINO 2.1 [41–46]. All samples are processed through the GEANT4-based simulation [47] of the ATLAS detector [48]. The variation of the number of pp inter-actions per bunch crossing (pile-up) as a function of the instantaneous luminosity is taken into account by model-ing the simulated number of overlaid minimum bias events

1_{ATLAS uses a right-handed coordinate system with its origin}

at the nominal interaction point (IP) in the centre of the detector and the z-axis along the beam pipe. The x-axis points from the IP to the centre of the LHC ring and the y-axis points upward. Cylindrical coordinates (R, φ) are used in the transverse plane, φ being the azimuthal angle around the beam pipe. The pseudorapidity is defined in terms of the polar angle θ as η = − ln tan(θ/2).

according to the observed distribution of the number of pile-up interactions in data, with an average of ∼ 6 inter-actions.

4. Object reconstruction

Jets are reconstructed using the anti-kt jet clustering

algorithm [49] with radius parameter R = 0.4. Their energies are calibrated to correct for calorimeter non-compensation, upstream material and other effects [50]. Jets are required to have transverse momentum (pT) above

20 GeV and |η| < 2.5.

Muons are identified as tracks in the ID matched to track segments in the stand-alone muon spectrometer, while electrons are identified as isolated tracks with a corre-sponding energy deposit in the electromagnetic calorime-ter. The selection criteria applied to muons and “medium” quality electrons are described in more detail in Refs. Refs. [51] and [52], respectively.

The measurement of the missing transverse momentum two-dimensional vector pmiss

T (and its magnitude ETmiss) is

based on the transverse momenta of identified jets, elec-trons, muons and all calorimeter clusters with |η| < 4.5 not associated to such objects [53]. For the purpose of the measurement of Emiss

T , taus are not distinguished from jets.

In this search, only hadronically decaying taus are con-sidered. The tau reconstruction is seeded from anti-kt

jets with pT > 10 GeV. An η- and pT-dependent

en-ergy calibration to the hadronic tau enen-ergy scale is ap-plied. Hadronic tau identification is based on observables sensitive to the transverse and longitudinal shape of the calorimeter shower and on tracking information, combined in a boosted decision tree (BDT) discriminator [54]. Tran-sition radiation and calorimeter information is used to veto electrons misidentified as taus. A tau candidate must have pT> 20 GeV, |η| < 2.5, and one or three associated tracks

of pT > 1 GeV with a charge sum of ±1. The efficiency

of the BDT tau identification (the “loose” working point in Ref. [54]), determined using Z → ττ events, is about 60 %, independent of pT, with a jet background rejection

factor of 20 − 50.

During a part of the data-taking period, an electronics failure in the LAr barrel EM calorimeter created a dead region in the second and third layers, corresponding to ap-proximately 1.4×0.2 radians in ∆η×∆φ. Electron and tau candidates falling in this region are discarded. A correc-tion to the jet energy is made using the energy deposicorrec-tions in the cells neighbouring the dead region; events having at least one jet for which the energy after correction is above 30 GeV are discarded, resulting in a loss of ∼ 6% of the data sample.

5. Data analysis

The analysed data sample, after applying beam, detec-tor and data-quality requirements, corresponds to an inte-grated luminosity of (2.05 ± 0.08) fb−1 _{[55, 56]. Candidate}

[GeV] 1 τ T p 0 50 100 150 200 250 300 Events / 20 GeV 0 5 10 15 20 25 30 ATLAS =7 TeV s -1 L dt = 2.05 fb

∫

Data 2011 Standard Model Top W+jets Z+jets = 40TeV Λ GMSB - = 30 β tan

Figure 1: The pT spectrum of the leading tau candidates in data

(points, statistical uncertainty only) and the estimated SM back-ground after the pselection of candidate events, soft multi-jet re-jection and the requirement of two or more taus and no light lep-tons. The band centered around the total SM background indicates the statistical uncertainty. Also shown is the expected signal from a typical GMSB (Λ = 40 TeV, tan β = 30) sample.

events are pre-selected by a trigger requiring a leading jet, i.e. the jet having the highest transverse momentum of all jets in the event, with pT> 75 GeV, measured at the raw

electromagnetic scale, and Emiss

T > 45 GeV [57]. In the

offline analysis, these events are required to have a recon-structed primary vertex with at least five tracks, a leading jet with pT > 130 GeV and ETmiss > 130 GeV. These

re-quirements ensure a uniform trigger efficiency that exceeds 98 %.

Pre-selected events are then required to have at least two identified tau candidates and must not contain any elec-tron or muon candidates with transverse momenta above 20 GeV or 10 GeV, respectively. To suppress soft multi-jet events, a second jet with pT> 30 GeV is required. The pT

spectrum of the leading tau candidate after pre-selection of candidate events, soft multi-jet rejection and the require-ment of two or more taus and no light leptons is shown in Fig. 1.

This selection rejects almost all soft multi-jet back-ground events. Remaining multi-jet events, where highly energetic jets are mis-measured, are rejected by requiring the azimuthal angle between the missing transverse mo-mentum and either of the two leading jets ∆φ(pmiss

T , jet1,2)

to be larger than 0.4 radians.

The SR is defined by requiring meff > 700 GeV and

mτ1

T + m

τ₂

T > 80 GeV, where meff is the effective mass2

and mτ1

T + m

τ₂

T is the sum of the transverse masses3of the

two leading tau candidates. The meff distribution after

2_{The effective mass m}

eff is calculated as the sum of ETmiss and

the magnitude of the transverse momenta of the two highest-pTjets

and all selected taus.

3_{The transverse mass m}

Tformed by ETmissand the pTof the tau

lepton (τ ) is defined as mT=

p

2pτ

TETmiss(1 − cos(∆φ(τ, pmissT ))).

the ∆φ(pmiss

T , jet1,2) requirement and the m τ₁

T + m

τ₂

T

dis-tribution after the meff requirement are shown in Fig. 2.

After applying all the analysis requirements, 3 events are selected in the data.

[GeV] eff m 400 600 800 1000 1200 1400 1600 Events / 100 GeV 0 5 10 15 20 25 30 ATLAS =7 TeV s -1 L dt = 2.05 fb

∫

Data 2011 Standard Model Top W+jets Z+jets = 40TeV Λ GMSB - = 30 β tan

(a) meff distribution after the ∆φ requirement

[GeV] 2 τ T + m 1 τ T m 0 100 200 300 400 500 600 700 Events / 40 GeV 0 1 2 3 4 5 6 7 8 ATLAS =7 TeV s -1 L dt = 2.05 fb

∫

Data 2011 Standard Model Top W+jets Z+jets = 40TeV Λ GMSB - = 30 β tan (b) mτ1 T + m τ 2

T distribution after the meff requirement

Figure 2: Distributions of variables used for the signal region def-inition in data (points, statistical uncertainty only) and the esti-mated SM background after the pre-selection of candidate events, soft multi-jet rejection and the requirement of two or more taus and no light leptons. The yellow band centered around the total SM background indicates the statistical uncertainty. Also shown is the expected signal from a typical GMSB (Λ = 40 TeV, tan β = 30) sam-ple.

6. Background estimation

The dominant backgrounds in the SR arise from top-pair plus single top events (here generically indicated as t¯t), W → τντ events and Z → ττ events. While the latter

comprises final states with two true taus, which are well de-scribed in the simulation, the W and t¯t background consist of events in which one real tau is correctly reconstructed and the other tau candidates are mis-reconstructed from hadronic activity in the final state. Since mis-identified

taus are not well described in the MC, the background contribution from t¯t and W → τντ is determined

simulta-neously in a CR defined by inverting the meff cut. Owing

to the requirement on ∆φ and of two or more taus, this CR has negligible contamination from multi-jet events. More-over, a totally negligible contribution is expected in this CR from signal events. The MC overestimates the number of events in the CR compared to data, due to mis-modeling of tau misidentification probabilities. MC studies show that the tau misidentification probability is, to a good ap-proximation, independent of meff, so that the measured

ratio of the data to MC event yields in the CR can be used to correct the MC background prediction in the SR. In a similar way, the multi-jet background expectation is computed in a multi-jet dominated CR defined by invert-ing the ∆φ and meff cuts. In addition, ETmiss/meff < 0.4

is required to increase the purity of this CR sample. The extrapolated contribution of this background source to the SR is found to be negligible.

7. Systematic uncertainties on the background

The theoretical uncertainty on the MC-based corrected extrapolation of the W and t¯t backgrounds from the CR into the SR is estimated using alternative MC samples obtained by varying the renormalisation and factorisa-tion scales, the funcfactorisa-tional form of the factorisafactorisa-tion scale and the matching threshold in the parton shower process. An uncertainty of 14 % is estimated from this procedure. Moreover, an uncertainty of 23 % is associated to the nor-malisation factor derived in the CR. This uncertainty is estimated by repeating the normalisation to data inde-pendently for W and t¯t. Systematic uncertainties on the jet energy scale and jet energy resolution [50] are applied in MC to the selected jets and propagated throughout the analysis, including to Emiss

T . The difference in the number

of expected background events obtained with the nominal MC simulation after applying these changes is taken as the systematic uncertainty and corresponds to 18 % each. The effect of the tau energy scale uncertainly on the expected background is estimated in a similar way and amounts to 7 %. The uncertainties from the jet and tau energy scale are treated as fully correlated. The tau identification ef-ficiency uncertainties on the background depends on the tau identification algorithm, the kinematics of the τ sam-ple and the number of associated tracks. The system-atic uncertainties associated to the tau identification and misidentification are found to be 2.5 % and 0.5 %, respec-tively. For the t¯t and W backgrounds, these uncertain-ties are absorbed into the normalisation. The systematic uncertainty associated to pile-up simulation in MC is 1 %. The normalization of the Z+jets and diboson backgrounds is affected by the uncertainty of 3.7 % on the luminosity measurement [55, 56]. This results in a 0.8 % uncertainty on the total background. The contributions from the dif-ferent systematic uncertainties result in a total background systematic uncertainty of 41 %.

In total 5.3 ± 1.3(stat) ± 2.2(sys) background events are expected where the first uncertainty is statistical and in-cludes the statistical component of the background cor-rection factor uncertainty and the second is systematic. Roughly half of the background is composed of t¯t events and the other half is evenly split into W and Z events with accompanying jets.

8. Signal efficiencies and systematic uncertainties

GMSB signal samples were generated on a grid ranging from Λ = 10 TeV to Λ = 80 TeV and from tan β = 2 to tan β = 50. The number of selected events decreases signif-icantly with increasing Λ due to the reduced cross section. The cross section drops from 100 pb for Λ = 15 TeV to 5.0 fb for Λ = 80 TeV. The selection efficiency is highest (≈ 3%) for high tan β and lower Λ values, including in the region of the GMSB4030 point (Λ = 40, tan β = 30) which is near the expected limit. It drops to 0.2 % in the non-˜τ1

NLSP regions and for high Λ values. This is primarily a consequence of the light lepton veto and the requirement of two hadronically decaying taus, respectively.

The total systematic uncertainty on the signal selec-tion from the systematic uncertainties discussed in Sec-tion 7 ranges between 7.5 % and 36 % over the GMSB grid. The statistical uncertainty from the limited size of the MC signal samples is of the order of 20 %, with variations between 7.6 % and 59 % at the edges of the accessible signal range. Theory uncertainties related to the GMSB cross section predictions are estimated through variations of the factorisation and renormalisation scales in the NLO PROSPINO calculation between half and twice their default values, by considering variations in αs, and

by considering PDF uncertainties using the CTEQ6.6M PDF error sets [58]. These uncertainties are calculated for in-dividual SUSY production processes and for each model point, leading to overall theoretical cross section uncer-tainties between 6.5 % and 22 %. Altogether this yields 20.8 ± 3.4(stat) ± 3.6(sys) ± 3.3(theo) signal events for the GMSB4030 point.

9. Results

Based on the observation of 3 events in the SR and a background expectation of 5.3±1.3(stat)±2.2(sys) events, an upper limit of 5.9 (7.0) events observed (expected) is set at 95 % Confidence Level (CL) on the number of events from any scenario of physics beyond the SM, using the profile likelihood and CLs method [59]. Uncertainties

on the background and signal expectations are treated as Gaussian-distributed nuisance parameters in the likelihood fit. This limit translates into a 95 % observed (expected) upper limit of 2.9 fb (3.4 fb) on the visible cross section for new phenomena, defined by the product of cross section, branching fraction, acceptance and efficiency for the se-lections defined in Section 5. The resulting expected and

[TeV] Λ 10 20 30 40 50 60 70 β tan 5 10 15 20 25 30 35 40 45 50 1 0 χ∼ 1 τ∼ CoNLSP R l ~ Theory excl. (1400 GeV) g ~ (1200 GeV) g ~ (1000 GeV) g ~ (800 GeV) g ~ (600 GeV) g ~ (400 GeV) g ~ =1 grav >0, C µ =3, 5 =250 TeV, N mess GMSB: M =7 TeV s , -1 L dt = 2.05 fb ∫ 2-tau channel ATLAS 2-tau channel observed 95% CL limit s CL

median expected limit s CL σ 1 ± Expected limit ) 1 τ∼ OPAL 95% CL ( ) R µ∼ OPAL 95% CL ( OPAL 95% CL

Figure 3: Expected and observed 95 % CL limits on the minimal GMSB model parameters Λ and tan β. The dark grey area indicates the region which is theoretically excluded due to unphysical spar-ticle mass values. The different NLSP regions are indicate. In the CoNLSP region the ˜τ1and the ˜ℓRare the NLSP. Additional model

parameters are Mmess = 250 TeV, N5 = 3, µ > 0 and Cgrav = 1.

The previous OPAL [19] limits are also shown.

observed 95 % CL limits on the GMSB model parameters Λ and tan β are shown in Fig. 3, including the lower limits from OPAL [19] for comparison. These limits are calcu-lated including all experimental and theoretical uncertain-ties on the background and signal expectations. Exclud-ing the theoretical uncertainties on the signal cross section from the limit calculation has a negligible effect on the lim-its obtained. The best exclusion is set for Λ = 47 TeV and tan β = 37. The results extend previous limits and values of Λ < 32 TeV are now excluded at 95 % CL, independent of tan β.

10. Conclusions

A search for events with two or more hadronically de-caying tau leptons, large Emiss

T and jets is performed using

2 fb−1 _of√_{s = 7 TeV pp collision data recorded with the}

ATLAS detector at the LHC. Three events are found, con-sistent with the expected SM background. The results are used to set a model-independent 95 % CL upper limit of 5.9 events from new phenomena, corresponding to an up-per limit on the visible cross section of 2.9 fb. Limits on the model parameters are set for a minimal GMSB model. The limit on the SUSY breaking scale Λ of 32 TeV is de-termined, independent of tan β. It increases up to 47 TeV for tan β = 37. These results provide the most stringent tests in a large part of the parameter space considered to date, improving the previous best limits.

Acknowledgements

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, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONI-CYT, Chile; CAS, MOST and NSFC, China; COLCIEN-CIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Founda-tion, Denmark; EPLANET and ERC, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Ger-many; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Por-tugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme 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 (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2 facilities worldwide.

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The ATLAS Collaboration

G. Aad48_{, B. Abbott}110_{, J. Abdallah}11_{, S. Abdel Khalek}114_{, A.A. Abdelalim}49_{, A. Abdesselam}117_{, O. Abdinov}10_,

B. Abi111_{, M. Abolins}87_{, O.S. AbouZeid}157_{, H. Abramowicz}152_{, H. Abreu}114_{, E. Acerbi}88a,88b_{, B.S. Acharya}163a,163b_,

L. Adamczyk37_{, D.L. Adams}24_{, T.N. Addy}56_{, J. Adelman}174_{, M. Aderholz}98_{, S. Adomeit}97_{, P. Adragna}74_{, T. Adye}128_,

S. Aefsky22_{, J.A. Aguilar-Saavedra}123b,a_{, M. Aharrouche}80_{, S.P. Ahlen}21_{, F. Ahles}48_{, A. Ahmad}147_{, M. Ahsan}40_,

G. Aielli132a,132b_{, T. Akdogan}18a_{, T.P.A. ˚Akesson}78_{, G. Akimoto}154_{, A.V. Akimov}93_{, A. Akiyama}66_{, M.S. Alam}1_,

M.A. Alam75_{, J. Albert}168_{, S. Albrand}55_{, M. Aleksa}29_{, I.N. Aleksandrov}64_{, F. Alessandria}88a_{, C. Alexa}25a_,

G. Alexander152_{, G. Alexandre}49_{, T. Alexopoulos}9_{, M. Alhroob}20_{, M. Aliev}15_{, G. Alimonti}88a_{, J. Alison}119_,

M. Aliyev10_{, B.M.M. Allbrooke}17_{, P.P. Allport}72_{, S.E. Allwood-Spiers}53_{, J. Almond}81_{, A. Aloisio}101a,101b_{, R. Alon}170_,

A. Alonso78_{, B. Alvarez Gonzalez}87_{, M.G. Alviggi}101a,101b_{, K. Amako}65_{, P. Amaral}29_{, C. Amelung}22_,

V.V. Ammosov127_{, A. Amorim}123a,b_{, G. Amor´os}166_{, N. Amram}152_{, C. Anastopoulos}29_{, L.S. Ancu}16_{, N. Andari}114_,

T. Andeen34_{, C.F. Anders}20_{, G. Anders}58a_{, K.J. Anderson}30_{, A. Andreazza}88a,88b_{, V. Andrei}58a_{, M-L. Andrieux}55_,

X.S. Anduaga69_{, A. Angerami}34_{, F. Anghinolfi}29_{, A. Anisenkov}106_{, N. Anjos}123a_{, A. Annovi}47_{, A. Antonaki}8_,

M. Antonelli47_{, A. Antonov}95_{, J. Antos}143b_{, F. Anulli}131a_{, S. Aoun}82_{, L. Aperio Bella}4_{, R. Apolle}117,c_{, G. Arabidze}87_,

I. Aracena142_{, Y. Arai}65_{, A.T.H. Arce}44_{, S. Arfaoui}147_{, J-F. Arguin}14_{, E. Arik}18a,∗_{, M. Arik}18a_{, A.J. Armbruster}86_,

O. Arnaez80_{, V. Arnal}79_{, C. Arnault}114_{, A. Artamonov}94_{, G. Artoni}131a,131b_{, D. Arutinov}20_{, S. Asai}154_,

R. Asfandiyarov171_{, S. Ask}27_{, B. ˚Asman}145a,145b_{, L. Asquith}5_{, K. Assamagan}24_{, A. Astbury}168_{, A. Astvatsatourov}52_,

B. Aubert4_{, E. Auge}114_{, K. Augsten}126_{, M. Aurousseau}144a_{, G. Avolio}162_{, R. Avramidou}9_{, D. Axen}167_{, C. Ay}54_,

G. Azuelos92,d_{, Y. Azuma}154_{, M.A. Baak}29_{, G. Baccaglioni}88a_{, C. Bacci}133a,133b_{, A.M. Bach}14_{, H. Bachacou}135_,

K. Bachas29_{, M. Backes}49_{, M. Backhaus}20_{, E. Badescu}25a_{, P. Bagnaia}131a,131b_{, S. Bahinipati}2_{, Y. Bai}32a_,

D.C. Bailey157_{, T. Bain}157_{, J.T. Baines}128_{, O.K. Baker}174_{, M.D. Baker}24_{, S. Baker}76_{, E. Banas}38_{, P. Banerjee}92_,

Sw. Banerjee171_{, D. Banfi}29_{, A. Bangert}149_{, V. Bansal}168_{, H.S. Bansil}17_{, L. Barak}170_{, S.P. Baranov}93_{, A. Barashkou}64_,

A. Barbaro Galtieri14_{, T. Barber}48_{, E.L. Barberio}85_{, D. Barberis}50a,50b_{, M. Barbero}20_{, D.Y. Bardin}64_{, T. Barillari}98_,

M. Barisonzi173_{, T. Barklow}142_{, N. Barlow}27_{, B.M. Barnett}128_{, R.M. Barnett}14_{, A. Baroncelli}133a_{, G. Barone}49_,

A.J. Barr117_{, F. Barreiro}79_{, J. Barreiro Guimar˜aes da Costa}57_{, P. Barrillon}114_{, R. Bartoldus}142_{, A.E. Barton}70_,

V. Bartsch148_{, R.L. Bates}53_{, L. Batkova}143a_{, J.R. Batley}27_{, A. Battaglia}16_{, M. Battistin}29_{, F. Bauer}135_{, H.S. Bawa}142,e_,

S. Beale97_{, T. Beau}77_{, P.H. Beauchemin}160_{, R. Beccherle}50a_{, P. Bechtle}20_{, H.P. Beck}16_{, S. Becker}97_{, M. Beckingham}137_,

K.H. Becks173_{, A.J. Beddall}18c_{, A. Beddall}18c_{, S. Bedikian}174_{, V.A. Bednyakov}64_{, C.P. Bee}82_{, M. Begel}24_,

S. Behar Harpaz151_{, P.K. Behera}62_{, M. Beimforde}98_{, C. Belanger-Champagne}84_{, P.J. Bell}49_{, W.H. Bell}49_{, G. Bella}152_,

L. Bellagamba19a_{, F. Bellina}29_{, M. Bellomo}29_{, A. Belloni}57_{, O. Beloborodova}106,f_{, K. Belotskiy}95_{, O. Beltramello}29_,

O. Benary152_{, D. Benchekroun}134a_{, M. Bendel}80_{, N. Benekos}164_{, Y. Benhammou}152_{, E. Benhar Noccioli}49_,

J.A. Benitez Garcia158b_{, D.P. Benjamin}44_{, M. Benoit}114_{, J.R. Bensinger}22_{, K. Benslama}129_{, S. Bentvelsen}104_,

D. Berge29, E. Bergeaas Kuutmann41, N. Berger4, F. Berghaus168, E. Berglund104, J. Beringer14, P. Bernat76, R. Bernhard48_{, C. Bernius}24_{, T. Berry}75_{, C. Bertella}82_{, A. Bertin}19a,19b_{, F. Bertinelli}29_{, F. Bertolucci}121a,121b_,

M.I. Besana88a,88b_{, N. Besson}135_{, S. Bethke}98_{, W. Bhimji}45_{, R.M. Bianchi}29_{, M. Bianco}71a,71b_{, O. Biebel}97_,

S.P. Bieniek76_{, K. Bierwagen}54_{, J. Biesiada}14_{, M. Biglietti}133a_{, H. Bilokon}47_{, M. Bindi}19a,19b_{, S. Binet}114_{, A. Bingul}18c_,

C. Bini131a,131b_{, C. Biscarat}176_{, U. Bitenc}48_{, K.M. Black}21_{, R.E. Blair}5_{, J.-B. Blanchard}135_{, G. Blanchot}29_,

T. Blazek143a_{, C. Blocker}22_{, J. Blocki}38_{, A. Blondel}49_{, W. Blum}80_{, U. Blumenschein}54_{, G.J. Bobbink}104_,

V.B. Bobrovnikov106_{, S.S. Bocchetta}78_{, A. Bocci}44_{, C.R. Boddy}117_{, M. Boehler}41_{, J. Boek}173_{, N. Boelaert}35_,

J.A. Bogaerts29_{, A. Bogdanchikov}106_{, A. Bogouch}89,∗_{, C. Bohm}145a_{, J. Bohm}124_{, V. Boisvert}75_{, T. Bold}37_,

V. Boldea25a_{, N.M. Bolnet}135_{, M. Bomben}77_{, M. Bona}74_{, V.G. Bondarenko}95_{, M. Bondioli}162_{, M. Boonekamp}135_,

C.N. Booth138_{, S. Bordoni}77_{, C. Borer}16_{, A. Borisov}127_{, G. Borissov}70_{, I. Borjanovic}12a_{, M. Borri}81_{, S. Borroni}86_,

V. Bortolotto133a,133b_{, K. Bos}104_{, D. Boscherini}19a_{, M. Bosman}11_{, H. Boterenbrood}104_{, D. Botterill}128_{, J. Bouchami}92_,

J. Boudreau122_{, E.V. Bouhova-Thacker}70_{, D. Boumediene}33_{, C. Bourdarios}114_{, N. Bousson}82_{, A. Boveia}30_{, J. Boyd}29_,

I.R. Boyko64_{, N.I. Bozhko}127_{, I. Bozovic-Jelisavcic}12b_{, J. Bracinik}17_{, A. Braem}29_{, P. Branchini}133a_,

G.W. Brandenburg57_{, A. Brandt}7_{, G. Brandt}117_{, O. Brandt}54_{, U. Bratzler}155_{, B. Brau}83_{, J.E. Brau}113_{, H.M. Braun}173_,

B. Brelier157, J. Bremer29, K. Brendlinger119, R. Brenner165, S. Bressler170, D. Britton53, F.M. Brochu27, I. Brock20, R. Brock87, T.J. Brodbeck70, E. Brodet152, F. Broggi88a, C. Bromberg87, J. Bronner98, G. Brooijmans34,

W.K. Brooks31b, G. Brown81, H. Brown7, P.A. Bruckman de Renstrom38, D. Bruncko143b, R. Bruneliere48, S. Brunet60_{, A. Bruni}19a_{, G. Bruni}19a_{, M. Bruschi}19a_{, T. Buanes}13_{, Q. Buat}55_{, F. Bucci}49_{, J. Buchanan}117_,

N.J. Buchanan2_{, P. Buchholz}140_{, R.M. Buckingham}117_{, A.G. Buckley}45_{, S.I. Buda}25a_{, I.A. Budagov}64_{, B. Budick}107_,

V. B¨uscher80_{, L. Bugge}116_{, O. Bulekov}95_{, M. Bunse}42_{, T. Buran}116_{, H. Burckhart}29_{, S. Burdin}72_{, T. Burgess}13_,

S. Burke128_{, E. Busato}33_{, P. Bussey}53_{, C.P. Buszello}165_{, F. Butin}29_{, B. Butler}142_{, J.M. Butler}21_{, C.M. Buttar}53_,

J.M. Butterworth76_{, W. Buttinger}27_{, S. Cabrera Urb´an}166_{, D. Caforio}19a,19b_{, O. Cakir}3a_{, P. Calafiura}14_{, G. Calderini}77_,

P. Calfayan97_{, R. Calkins}105_{, L.P. Caloba}23a_{, R. Caloi}131a,131b_{, D. Calvet}33_{, S. Calvet}33_{, R. Camacho Toro}33_,

V. Canale101a,101b_{, F. Canelli}30,g_{, A. Canepa}158a_{, J. Cantero}79_{, L. Capasso}101a,101b_{, M.D.M. Capeans Garrido}29_,

I. Caprini25a_{, M. Caprini}25a_{, D. Capriotti}98_{, M. Capua}36a,36b_{, R. Caputo}80_{, R. Cardarelli}132a_{, T. Carli}29_,

G. Carlino101a_{, L. Carminati}88a,88b_{, B. Caron}84_{, S. Caron}103_{, E. Carquin}31b_{, G.D. Carrillo Montoya}171_{, A.A. Carter}74_,

J.R. Carter27_{, J. Carvalho}123a,h_{, D. Casadei}107_{, M.P. Casado}11_{, M. Cascella}121a,121b_{, C. Caso}50a,50b,∗_,

A.M. Castaneda Hernandez171_{, E. Castaneda-Miranda}171_{, V. Castillo Gimenez}166_{, N.F. Castro}123a_{, G. Cataldi}71a_,

A. Catinaccio29_{, J.R. Catmore}29_{, A. Cattai}29_{, G. Cattani}132a,132b_{, S. Caughron}87_{, D. Cauz}163a,163c_{, P. Cavalleri}77_,

D. Cavalli88a_{, M. Cavalli-Sforza}11_{, V. Cavasinni}121a,121b_{, F. Ceradini}133a,133b_{, A.S. Cerqueira}23b_{, A. Cerri}29_,

L. Cerrito74_{, F. Cerutti}47_{, S.A. Cetin}18b_{, F. Cevenini}101a,101b_{, A. Chafaq}134a_{, D. Chakraborty}105_{, K. Chan}2_,

B. Chapleau84_{, J.D. Chapman}27_{, J.W. Chapman}86_{, E. Chareyre}77_{, D.G. Charlton}17_{, V. Chavda}81_,

C.A. Chavez Barajas29_{, S. Cheatham}84_{, S. Chekanov}5_{, S.V. Chekulaev}158a_{, G.A. Chelkov}64_{, M.A. Chelstowska}103_,

C. Chen63_{, H. Chen}24_{, S. Chen}32c_{, T. Chen}32c_{, X. Chen}171_{, S. Cheng}32a_{, A. Cheplakov}64_{, V.F. Chepurnov}64_,

R. Cherkaoui El Moursli134e_{, V. Chernyatin}24_{, E. Cheu}6_{, S.L. Cheung}157_{, L. Chevalier}135_{, G. Chiefari}101a,101b_,

L. Chikovani51a_{, J.T. Childers}29_{, A. Chilingarov}70_{, G. Chiodini}71a_{, A.S. Chisholm}17_{, R.T. Chislett}76_{, M.V. Chizhov}64_,

G. Choudalakis30_{, S. Chouridou}136_{, I.A. Christidi}76_{, A. Christov}48_{, D. Chromek-Burckhart}29_{, M.L. Chu}150_,

J. Chudoba124_{, G. Ciapetti}131a,131b_{, A.K. Ciftci}3a_{, R. Ciftci}3a_{, D. Cinca}33_{, V. Cindro}73_{, M.D. Ciobotaru}162_,

C. Ciocca19a_{, A. Ciocio}14_{, M. Cirilli}86_{, M. Citterio}88a_{, M. Ciubancan}25a_{, A. Clark}49_{, P.J. Clark}45_{, W. Cleland}122_,

J.C. Clemens82_{, B. Clement}55_{, C. Clement}145a,145b_{, R.W. Clifft}128_{, Y. Coadou}82_{, M. Cobal}163a,163c_{, A. Coccaro}171_,

J. Cochran63_{, P. Coe}117_{, J.G. Cogan}142_{, J. Coggeshall}164_{, E. Cogneras}176_{, J. Colas}4_{, A.P. Colijn}104_{, N.J. Collins}17_,

C. Collins-Tooth53_{, J. Collot}55_{, G. Colon}83_{, P. Conde Mui˜no}123a_{, E. Coniavitis}117_{, M.C. Conidi}11_{, M. Consonni}103_,

S.M. Consonni88a,88b_{, V. Consorti}48_{, S. Constantinescu}25a_{, C. Conta}118a,118b_{, G. Conti}57_{, F. Conventi}101a,i_{, J. Cook}29_,

M. Cooke14_{, B.D. Cooper}76_{, A.M. Cooper-Sarkar}117_{, K. Copic}14_{, T. Cornelissen}173_{, M. Corradi}19a_{, F. Corriveau}84,j_,

A. Cortes-Gonzalez164_{, G. Cortiana}98_{, G. Costa}88a_{, M.J. Costa}166_{, D. Costanzo}138_{, T. Costin}30_{, D. Cˆot´e}29_,

R. Coura Torres23a_{, L. Courneyea}168_{, G. Cowan}75_{, C. Cowden}27_{, B.E. Cox}81_{, K. Cranmer}107_{, F. Crescioli}121a,121b_,

M. Cristinziani20_{, G. Crosetti}36a,36b_{, R. Crupi}71a,71b_{, S. Cr´ep´e-Renaudin}55_{, C.-M. Cuciuc}25a_{, C. Cuenca Almenar}174_,

T. Cuhadar Donszelmann138_{, M. Curatolo}47_{, C.J. Curtis}17_{, C. Cuthbert}149_{, P. Cwetanski}60_{, H. Czirr}140_,

P. Czodrowski43_{, Z. Czyczula}174_{, S. D’Auria}53_{, M. D’Onofrio}72_{, A. D’Orazio}131a,131b_{, P.V.M. Da Silva}23a_{, C. Da Via}81_,

W. Dabrowski37_{, A. Dafinca}117_{, T. Dai}86_{, C. Dallapiccola}83_{, M. Dam}35_{, M. Dameri}50a,50b_{, D.S. Damiani}136_,

H.O. Danielsson29_{, D. Dannheim}98_{, V. Dao}49_{, G. Darbo}50a_{, G.L. Darlea}25b_{, W. Davey}20_{, T. Davidek}125_,

N. Davidson85_{, R. Davidson}70_{, E. Davies}117,c_{, M. Davies}92_{, A.R. Davison}76_{, Y. Davygora}58a_{, E. Dawe}141_{, I. Dawson}138_,

J.W. Dawson5,∗_{, R.K. Daya-Ishmukhametova}22_{, K. De}7_{, R. de Asmundis}101a_{, S. De Castro}19a,19b_,

P.E. De Castro Faria Salgado24_{, S. De Cecco}77_{, J. de Graat}97_{, N. De Groot}103_{, P. de Jong}104_{, C. De La Taille}114_,

H. De la Torre79_{, B. De Lotto}163a,163c_{, L. de Mora}70_{, L. De Nooij}104_{, D. De Pedis}131a_{, A. De Salvo}131a_,

U. De Sanctis163a,163c_{, A. De Santo}148_{, J.B. De Vivie De Regie}114_{, G. De Zorzi}131a,131b_{, S. Dean}76_{, W.J. Dearnaley}70_,

R. Debbe24, C. Debenedetti45, B. Dechenaux55, D.V. Dedovich64, J. Degenhardt119, M. Dehchar117,

C. Del Papa163a,163c_{, J. Del Peso}79_{, T. Del Prete}121a,121b_{, T. Delemontex}55_{, M. Deliyergiyev}73_{, A. Dell’Acqua}29_,

L. Dell’Asta21_{, M. Della Pietra}101a,i_{, D. della Volpe}101a,101b_{, M. Delmastro}4_{, N. Delruelle}29_{, P.A. Delsart}55_,

C. Deluca147_{, S. Demers}174_{, M. Demichev}64_{, B. Demirkoz}11,k_{, J. Deng}162_{, S.P. Denisov}127_{, D. Derendarz}38_,

J.E. Derkaoui134d_{, F. Derue}77_{, P. Dervan}72_{, K. Desch}20_{, E. Devetak}147_{, P.O. Deviveiros}104_{, A. Dewhurst}128_,

B. DeWilde147_{, S. Dhaliwal}157_{, R. Dhullipudi}24 ,l_{, A. Di Ciaccio}132a,132b_{, L. Di Ciaccio}4_{, A. Di Girolamo}29_,

B. Di Girolamo29_{, S. Di Luise}133a,133b_{, A. Di Mattia}171_{, B. Di Micco}29_{, R. Di Nardo}47_{, A. Di Simone}132a,132b_,

R. Di Sipio19a,19b_{, M.A. Diaz}31a_{, F. Diblen}18c_{, E.B. Diehl}86_{, J. Dietrich}41_{, T.A. Dietzsch}58a_{, S. Diglio}85_,

K. Dindar Yagci39_{, J. Dingfelder}20_{, C. Dionisi}131a,131b_{, P. Dita}25a_{, S. Dita}25a_{, F. Dittus}29_{, F. Djama}82_{, T. Djobava}51b_,

M.A.B. do Vale23c_{, A. Do Valle Wemans}123a_{, T.K.O. Doan}4_{, M. Dobbs}84_{, R. Dobinson}29,∗_{, D. Dobos}29_,

E. Dobson29,m_{, J. Dodd}34_{, C. Doglioni}49_{, T. Doherty}53_{, Y. Doi}65,∗_{, J. Dolejsi}125_{, I. Dolenc}73_{, Z. Dolezal}125_,

B.A. Dolgoshein95,∗_{, T. Dohmae}154_{, M. Donadelli}23d_{, M. Donega}119_{, J. Donini}33_{, J. Dopke}29_{, A. Doria}101a_,

A. Dos Anjos171_{, M. Dosil}11_{, A. Dotti}121a,121b_{, M.T. Dova}69_{, A.D. Doxiadis}104_{, A.T. Doyle}53_{, Z. Drasal}125_{, J. Drees}173_,

N. Dressnandt119_{, H. Drevermann}29_{, C. Driouichi}35_{, M. Dris}9_{, J. Dubbert}98_{, S. Dube}14_{, E. Duchovni}170_{, G. Duckeck}97_,

A. Dudarev29, F. Dudziak63, M. D¨uhrssen 29, I.P. Duerdoth81, L. Duflot114, M-A. Dufour84, M. Dunford29, H. Duran Yildiz3a, R. Duxfield138, M. Dwuznik37, F. Dydak29, M. D¨uren52, W.L. Ebenstein44, J. Ebke97, S. Eckweiler80, K. Edmonds80, C.A. Edwards75, N.C. Edwards53, W. Ehrenfeld41, T. Ehrich98, T. Eifert142,

G. Eigen13_{, K. Einsweiler}14_{, E. Eisenhandler}74_{, T. Ekelof}165_{, M. El Kacimi}134c_{, M. Ellert}165_{, S. Elles}4_{, F. Ellinghaus}80_,

K. Ellis74_{, N. Ellis}29_{, J. Elmsheuser}97_{, M. Elsing}29_{, D. Emeliyanov}128_{, R. Engelmann}147_{, A. Engl}97_{, B. Epp}61_,

A. Eppig86_{, J. Erdmann}54_{, A. Ereditato}16_{, D. Eriksson}145a_{, J. Ernst}1_{, M. Ernst}24_{, J. Ernwein}135_{, D. Errede}164_,

S. Errede164_{, E. Ertel}80_{, M. Escalier}114_{, C. Escobar}122_{, X. Espinal Curull}11_{, B. Esposito}47_{, F. Etienne}82_,

A.I. Etienvre135_{, E. Etzion}152_{, D. Evangelakou}54_{, H. Evans}60_{, L. Fabbri}19a,19b_{, C. Fabre}29_{, R.M. Fakhrutdinov}127_,

S. Falciano131a_{, Y. Fang}171_{, M. Fanti}88a,88b_{, A. Farbin}7_{, A. Farilla}133a_{, J. Farley}147_{, T. Farooque}157_{, S. Farrell}162_,

L. Fayard114_{, S. Fazio}36a,36b_{, R. Febbraro}33_{, P. Federic}143a_{, O.L. Fedin}120_{, W. Fedorko}87_{, M. Fehling-Kaschek}48_,

L. Feligioni82_{, D. Fellmann}5_{, C. Feng}32d_{, E.J. Feng}30_{, A.B. Fenyuk}127_{, J. Ferencei}143b_{, J. Ferland}92_{, W. Fernando}108_,

S. Ferrag53_{, J. Ferrando}53_{, V. Ferrara}41_{, A. Ferrari}165_{, P. Ferrari}104_{, R. Ferrari}118a_{, D.E. Ferreira de Lima}53_,

A. Ferrer166_{, M.L. Ferrer}47_{, D. Ferrere}49_{, C. Ferretti}86_{, A. Ferretto Parodi}50a,50b_{, M. Fiascaris}30_{, F. Fiedler}80_,

A. Filipˇciˇc73_{, A. Filippas}9_{, F. Filthaut}103_{, M. Fincke-Keeler}168_{, M.C.N. Fiolhais}123a,h_{, L. Fiorini}166_{, A. Firan}39_,

G. Fischer41_{, P. Fischer}20_{, M.J. Fisher}108_{, M. Flechl}48_{, I. Fleck}140_{, J. Fleckner}80_{, P. Fleischmann}172_,

S. Fleischmann173_{, T. Flick}173_{, A. Floderus}78_{, L.R. Flores Castillo}171_{, M.J. Flowerdew}98_{, M. Fokitis}9_,

T. Fonseca Martin16_{, D.A. Forbush}137_{, A. Formica}135_{, A. Forti}81_{, D. Fortin}158a_{, J.M. Foster}81_{, D. Fournier}114_,

A. Foussat29_{, A.J. Fowler}44_{, K. Fowler}136_{, H. Fox}70_{, P. Francavilla}11_{, S. Franchino}118a,118b_{, D. Francis}29_{, T. Frank}170_,

M. Franklin57_{, S. Franz}29_{, M. Fraternali}118a,118b_{, S. Fratina}119_{, S.T. French}27_{, F. Friedrich}43_{, R. Froeschl}29_,

D. Froidevaux29_{, J.A. Frost}27_{, C. Fukunaga}155_{, E. Fullana Torregrosa}29_{, J. Fuster}166_{, C. Gabaldon}29_{, O. Gabizon}170_,

T. Gadfort24_{, S. Gadomski}49_{, G. Gagliardi}50a,50b_{, P. Gagnon}60_{, C. Galea}97_{, E.J. Gallas}117_{, V. Gallo}16_{, B.J. Gallop}128_,

P. Gallus124_{, K.K. Gan}108_{, Y.S. Gao}142,e_{, V.A. Gapienko}127_{, A. Gaponenko}14_{, F. Garberson}174_{, M. Garcia-Sciveres}14_,

C. Garc´ıa166_{, J.E. Garc´ıa Navarro}166_{, R.W. Gardner}30_{, N. Garelli}29_{, H. Garitaonandia}104_{, V. Garonne}29_{, J. Garvey}17_,

C. Gatti47_{, G. Gaudio}118a_{, B. Gaur}140_{, L. Gauthier}135_{, P. Gauzzi}131a,131b_{, I.L. Gavrilenko}93_{, C. Gay}167_{, G. Gaycken}20_,

J-C. Gayde29_{, E.N. Gazis}9_{, P. Ge}32d_{, C.N.P. Gee}128_{, D.A.A. Geerts}104_{, Ch. Geich-Gimbel}20_{, K. Gellerstedt}145a,145b_,

C. Gemme50a_{, A. Gemmell}53_{, M.H. Genest}55_{, S. Gentile}131a,131b_{, M. George}54_{, S. George}75_{, P. Gerlach}173_,

A. Gershon152_{, C. Geweniger}58a_{, H. Ghazlane}134b_{, N. Ghodbane}33_{, B. Giacobbe}19a_{, S. Giagu}131a,131b_,

V. Giakoumopoulou8_{, V. Giangiobbe}11_{, F. Gianotti}29_{, B. Gibbard}24_{, A. Gibson}157_{, S.M. Gibson}29_{, L.M. Gilbert}117_,

V. Gilewsky90_{, D. Gillberg}28_{, A.R. Gillman}128_{, D.M. Gingrich}2,d_{, J. Ginzburg}152_{, N. Giokaris}8_{, M.P. Giordani}163c_,

R. Giordano101a,101b_{, F.M. Giorgi}15_{, P. Giovannini}98_{, P.F. Giraud}135_{, D. Giugni}88a_{, M. Giunta}92_{, P. Giusti}19a_,

B.K. Gjelsten116_{, L.K. Gladilin}96_{, C. Glasman}79_{, J. Glatzer}48_{, A. Glazov}41_{, K.W. Glitza}173_{, G.L. Glonti}64_,

J.R. Goddard74_{, J. Godfrey}141_{, J. Godlewski}29_{, M. Goebel}41_{, T. G¨opfert}43_{, C. Goeringer}80_{, C. G¨ossling}42_,

T. G¨ottfert98_{, S. Goldfarb}86_{, T. Golling}174_{, A. Gomes}123a,b_{, L.S. Gomez Fajardo}41_{, R. Gon¸calo}75_,

J. Goncalves Pinto Firmino Da Costa41_{, L. Gonella}20_{, A. Gonidec}29_{, S. Gonzalez}171_{, S. Gonz´alez de la Hoz}166_,

G. Gonzalez Parra11_{, M.L. Gonzalez Silva}26_{, S. Gonzalez-Sevilla}49_{, J.J. Goodson}147_{, L. Goossens}29_{, P.A. Gorbounov}94_,

H.A. Gordon24_{, I. Gorelov}102_{, G. Gorfine}173_{, B. Gorini}29_{, E. Gorini}71a,71b_{, A. Goriˇsek}73_{, E. Gornicki}38_,

V.N. Goryachev127_{, B. Gosdzik}41_{, A.T. Goshaw}5_{, M. Gosselink}104_{, M.I. Gostkin}64_{, I. Gough Eschrich}162_,

M. Gouighri134a_{, D. Goujdami}134c_{, M.P. Goulette}49_{, A.G. Goussiou}137_{, C. Goy}4_{, S. Gozpinar}22_{, I. Grabowska-Bold}37_,

P. Grafstr¨om29_{, K-J. Grahn}41_{, F. Grancagnolo}71a_{, S. Grancagnolo}15_{, V. Grassi}147_{, V. Gratchev}120_{, N. Grau}34_,

H.M. Gray29_{, J.A. Gray}147_{, E. Graziani}133a_{, O.G. Grebenyuk}120_{, T. Greenshaw}72_{, Z.D. Greenwood}24,l_{, K. Gregersen}35_,

I.M. Gregor41_{, P. Grenier}142_{, J. Griffiths}137_{, N. Grigalashvili}64_{, A.A. Grillo}136_{, S. Grinstein}11_{, Y.V. Grishkevich}96_,

J.-F. Grivaz114_{, M. Groh}98_{, E. Gross}170_{, J. Grosse-Knetter}54_{, J. Groth-Jensen}170_{, K. Grybel}140_{, V.J. Guarino}5_,

D. Guest174, C. Guicheney33, A. Guida71a,71b, S. Guindon54, H. Guler84,n, J. Gunther124, B. Guo157, J. Guo34, A. Gupta30_{, Y. Gusakov}64_{, V.N. Gushchin}127_{, P. Gutierrez}110_{, N. Guttman}152_{, O. Gutzwiller}171_{, C. Guyot}135_,

C. Gwenlan117_{, C.B. Gwilliam}72_{, A. Haas}142_{, S. Haas}29_{, C. Haber}14_{, H.K. Hadavand}39_{, D.R. Hadley}17_{, P. Haefner}98_,

F. Hahn29_{, S. Haider}29_{, Z. Hajduk}38_{, H. Hakobyan}175_{, D. Hall}117_{, J. Haller}54_{, K. Hamacher}173_{, P. Hamal}112_,

M. Hamer54_{, A. Hamilton}144b,o_{, S. Hamilton}160_{, H. Han}32a_{, L. Han}32b_{, K. Hanagaki}115_{, K. Hanawa}159_{, M. Hance}14_,

C. Handel80_{, P. Hanke}58a_{, J.R. Hansen}35_{, J.B. Hansen}35_{, J.D. Hansen}35_{, P.H. Hansen}35_{, P. Hansson}142_{, K. Hara}159_,

G.A. Hare136_{, T. Harenberg}173_{, S. Harkusha}89_{, D. Harper}86_{, R.D. Harrington}45_{, O.M. Harris}137_{, K. Harrison}17_,

J. Hartert48_{, F. Hartjes}104_{, T. Haruyama}65_{, A. Harvey}56_{, S. Hasegawa}100_{, Y. Hasegawa}139_{, S. Hassani}135_{, M. Hatch}29_,

D. Hauff98_{, S. Haug}16_{, M. Hauschild}29_{, R. Hauser}87_{, M. Havranek}20_{, B.M. Hawes}117_{, C.M. Hawkes}17_{, R.J. Hawkings}29_,

A.D. Hawkins78_{, D. Hawkins}162_{, T. Hayakawa}66_{, T. Hayashi}159_{, D. Hayden}75_{, H.S. Hayward}72_{, S.J. Haywood}128_,

E. Hazen21_{, M. He}32d_{, S.J. Head}17_{, V. Hedberg}78_{, L. Heelan}7_{, S. Heim}87_{, B. Heinemann}14_{, S. Heisterkamp}35_,

L. Helary4_{, C. Heller}97_{, M. Heller}29_{, S. Hellman}145a,145b_{, D. Hellmich}20_{, C. Helsens}11_{, R.C.W. Henderson}70_,

M. Henke58a_{, A. Henrichs}54_{, A.M. Henriques Correia}29_{, S. Henrot-Versille}114_{, F. Henry-Couannier}82_{, C. Hensel}54_,

T. Henß173_{, C.M. Hernandez}7_{, Y. Hern´andez Jim´enez}166_{, R. Herrberg}15_{, A.D. Hershenhorn}151_{, G. Herten}48_,

R. Hertenberger97, L. Hervas29, G.G. Hesketh76, N.P. Hessey104, E. Hig´on-Rodriguez166, D. Hill5,∗, J.C. Hill27, N. Hill5, K.H. Hiller41, S. Hillert20, S.J. Hillier17, I. Hinchliffe14, E. Hines119, M. Hirose115, F. Hirsch42,

D. Hirschbuehl173, J. Hobbs147, N. Hod152, M.C. Hodgkinson138, P. Hodgson138, A. Hoecker29, M.R. Hoeferkamp102, J. Hoffman39_{, D. Hoffmann}82_{, M. Hohlfeld}80_{, M. Holder}140_{, S.O. Holmgren}145a_{, T. Holy}126_{, J.L. Holzbauer}87_,

Y. Homma66_{, T.M. Hong}119_{, L. Hooft van Huysduynen}107_{, T. Horazdovsky}126_{, C. Horn}142_{, S. Horner}48_,

J-Y. Hostachy55_{, S. Hou}150_{, M.A. Houlden}72_{, A. Hoummada}134a_{, J. Howarth}81_{, D.F. Howell}117_{, I. Hristova}15_,

J. Hrivnac114_{, I. Hruska}124_{, T. Hryn’ova}4_{, P.J. Hsu}80_{, S.-C. Hsu}14_{, G.S. Huang}110_{, Z. Hubacek}126_{, F. Hubaut}82_,

F. Huegging20_{, A. Huettmann}41_{, T.B. Huffman}117_{, E.W. Hughes}34_{, G. Hughes}70_{, R.E. Hughes-Jones}81_{, M. Huhtinen}29_,

P. Hurst57_{, M. Hurwitz}14_{, U. Husemann}41_{, N. Huseynov}64,p_{, J. Huston}87_{, J. Huth}57_{, G. Iacobucci}49_{, G. Iakovidis}9_,

Y. Ikegami65_{, M. Ikeno}65_{, Y. Ilchenko}39_{, D. Iliadis}153_{, N. Ilic}157_{, M. Imori}154_{, T. Ince}20_{, J. Inigo-Golfin}29_{, P. Ioannou}8_,

M. Iodice133a_{, V. Ippolito}131a,131b_{, A. Irles Quiles}166_{, C. Isaksson}165_{, A. Ishikawa}66_{, M. Ishino}67_{, R. Ishmukhametov}39_,

C. Issever117_{, S. Istin}18a_{, A.V. Ivashin}127_{, W. Iwanski}38_{, H. Iwasaki}65_{, J.M. Izen}40_{, V. Izzo}101a_{, B. Jackson}119_,

J.N. Jackson72_{, P. Jackson}142_{, M.R. Jaekel}29_{, V. Jain}60_{, K. Jakobs}48_{, S. Jakobsen}35_{, J. Jakubek}126_{, D.K. Jana}110_,

E. Jansen76_{, H. Jansen}29_{, A. Jantsch}98_{, M. Janus}48_{, G. Jarlskog}78_{, L. Jeanty}57_{, K. Jelen}37_{, I. Jen-La Plante}30_,

P. Jenni29_{, A. Jeremie}4_{, P. Jeˇz}35_{, S. J´ez´equel}4_{, M.K. Jha}19a_{, H. Ji}171_{, W. Ji}80_{, J. Jia}147_{, Y. Jiang}32b_,

M. Jimenez Belenguer41_{, G. Jin}32b_{, S. Jin}32a_{, O. Jinnouchi}156_{, M.D. Joergensen}35_{, D. Joffe}39_{, L.G. Johansen}13_,

M. Johansen145a,145b_{, K.E. Johansson}145a_{, P. Johansson}138_{, S. Johnert}41_{, K.A. Johns}6_{, K. Jon-And}145a,145b_,

G. Jones117_{, R.W.L. Jones}70_{, T.W. Jones}76_{, T.J. Jones}72_{, O. Jonsson}29_{, C. Joram}29_{, P.M. Jorge}123a_{, J. Joseph}14_,

K.D. Joshi81_{, J. Jovicevic}146_{, T. Jovin}12b_{, X. Ju}171_{, C.A. Jung}42_{, R.M. Jungst}29_{, V. Juranek}124_{, P. Jussel}61_,

A. Juste Rozas11_{, V.V. Kabachenko}127_{, S. Kabana}16_{, M. Kaci}166_{, A. Kaczmarska}38_{, P. Kadlecik}35_{, M. Kado}114_,

H. Kagan108_{, M. Kagan}57_{, S. Kaiser}98_{, E. Kajomovitz}151_{, S. Kalinin}173_{, L.V. Kalinovskaya}64_{, S. Kama}39_,

N. Kanaya154_{, M. Kaneda}29_{, S. Kaneti}27_{, T. Kanno}156_{, V.A. Kantserov}95_{, J. Kanzaki}65_{, B. Kaplan}174_{, A. Kapliy}30_,

J. Kaplon29_{, D. Kar}43_{, M. Karagounis}20_{, M. Karagoz}117_{, M. Karnevskiy}41_{, V. Kartvelishvili}70_{, A.N. Karyukhin}127_,

L. Kashif171_{, G. Kasieczka}58b_{, R.D. Kass}108_{, A. Kastanas}13_{, M. Kataoka}4_{, Y. Kataoka}154_{, E. Katsoufis}9_{, J. Katzy}41_,

V. Kaushik6_{, K. Kawagoe}66_{, T. Kawamoto}154_{, G. Kawamura}80_{, M.S. Kayl}104_{, V.A. Kazanin}106_{, M.Y. Kazarinov}64_,

R. Keeler168_{, R. Kehoe}39_{, M. Keil}54_{, G.D. Kekelidze}64_{, J.S. Keller}137_{, J. Kennedy}97_{, M. Kenyon}53_{, O. Kepka}124_,

N. Kerschen29_{, B.P. Kerˇsevan}73_{, S. Kersten}173_{, K. Kessoku}154_{, J. Keung}157_{, F. Khalil-zada}10_{, H. Khandanyan}164_,

A. Khanov111_{, D. Kharchenko}64_{, A. Khodinov}95_{, A.G. Kholodenko}127_{, A. Khomich}58a_{, T.J. Khoo}27_{, G. Khoriauli}20_,

A. Khoroshilov173_{, N. Khovanskiy}64_{, V. Khovanskiy}94_{, E. Khramov}64_{, J. Khubua}51b_{, H. Kim}145a,145b_{, M.S. Kim}2_,

S.H. Kim159_{, N. Kimura}169_{, O. Kind}15_{, B.T. King}72_{, M. King}66_{, R.S.B. King}117_{, J. Kirk}128_{, L.E. Kirsch}22_,

A.E. Kiryunin98_{, T. Kishimoto}66_{, D. Kisielewska}37_{, T. Kittelmann}122_{, A.M. Kiver}127_{, E. Kladiva}143b_{, M. Klein}72_,

U. Klein72_{, K. Kleinknecht}80_{, M. Klemetti}84_{, A. Klier}170_{, P. Klimek}145a,145b_{, A. Klimentov}24_{, R. Klingenberg}42_,

J.A. Klinger81_{, E.B. Klinkby}35_{, T. Klioutchnikova}29_{, P.F. Klok}103_{, S. Klous}104_{, E.-E. Kluge}58a_{, T. Kluge}72_{, P. Kluit}104_,

S. Kluth98_{, N.S. Knecht}157_{, E. Kneringer}61_{, J. Knobloch}29_{, E.B.F.G. Knoops}82_{, A. Knue}54_{, B.R. Ko}44_,

T. Kobayashi154_{, M. Kobel}43_{, M. Kocian}142_{, P. Kodys}125_{, K. K¨oneke}29_{, A.C. K¨onig}103_{, S. Koenig}80_{, L. K¨opke}80_,

F. Koetsveld103_{, P. Koevesarki}20_{, T. Koffas}28_{, E. Koffeman}104_{, L.A. Kogan}117_{, F. Kohn}54_{, Z. Kohout}126_{, T. Kohriki}65_,

T. Koi142_{, T. Kokott}20_{, G.M. Kolachev}106_{, H. Kolanoski}15_{, V. Kolesnikov}64_{, I. Koletsou}88a_{, J. Koll}87_{, M. Kollefrath}48_,

S.D. Kolya81_{, A.A. Komar}93_{, Y. Komori}154_{, T. Kondo}65_{, T. Kono}41,q_{, A.I. Kononov}48_{, R. Konoplich}107,r_,

N. Konstantinidis76_{, A. Kootz}173_{, S. Koperny}37_{, K. Korcyl}38_{, K. Kordas}153_{, V. Koreshev}127_{, A. Korn}117_{, A. Korol}106_,

I. Korolkov11_{, E.V. Korolkova}138_{, V.A. Korotkov}127_{, O. Kortner}98_{, S. Kortner}98_{, V.V. Kostyukhin}20_{, M.J. Kotam¨aki}29_,

S. Kotov98_{, V.M. Kotov}64_{, A. Kotwal}44_{, C. Kourkoumelis}8_{, V. Kouskoura}153_{, A. Koutsman}158a_{, R. Kowalewski}168_,

T.Z. Kowalski37_{, W. Kozanecki}135_{, A.S. Kozhin}127_{, V. Kral}126_{, V.A. Kramarenko}96_{, G. Kramberger}73_{, M.W. Krasny}77_,

A. Krasznahorkay107, J. Kraus87, J.K. Kraus20, A. Kreisel152, F. Krejci126, J. Kretzschmar72, N. Krieger54,

P. Krieger157_{, K. Kroeninger}54_{, H. Kroha}98_{, J. Kroll}119_{, J. Kroseberg}20_{, J. Krstic}12a_{, U. Kruchonak}64_{, H. Kr¨uger}20_,

T. Kruker16_{, N. Krumnack}63_{, Z.V. Krumshteyn}64_{, A. Kruth}20_{, T. Kubota}85_{, S. Kuday}3a_{, S. Kuehn}48_{, A. Kugel}58c_,

T. Kuhl41_{, D. Kuhn}61_{, V. Kukhtin}64_{, Y. Kulchitsky}89_{, S. Kuleshov}31b_{, C. Kummer}97_{, M. Kuna}77_{, N. Kundu}117_,

J. Kunkle119_{, A. Kupco}124_{, H. Kurashige}66_{, M. Kurata}159_{, Y.A. Kurochkin}89_{, V. Kus}124_{, E.S. Kuwertz}146_{, M. Kuze}156_,

J. Kvita141_{, R. Kwee}15_{, A. La Rosa}49_{, L. La Rotonda}36a,36b_{, L. Labarga}79_{, J. Labbe}4_{, S. Lablak}134a_{, C. Lacasta}166_,

F. Lacava131a,131b_{, H. Lacker}15_{, D. Lacour}77_{, V.R. Lacuesta}166_{, E. Ladygin}64_{, R. Lafaye}4_{, B. Laforge}77_{, T. Lagouri}79_,

S. Lai48_{, E. Laisne}55_{, M. Lamanna}29_{, L. Lambourne}76_{, C.L. Lampen}6_{, W. Lampl}6_{, E. Lancon}135_{, U. Landgraf}48_,

M.P.J. Landon74_{, J.L. Lane}81_{, C. Lange}41_{, A.J. Lankford}162_{, F. Lanni}24_{, K. Lantzsch}173_{, S. Laplace}77_{, C. Lapoire}20_,

J.F. Laporte135_{, T. Lari}88a_{, A.V. Larionov}127_{, A. Larner}117_{, C. Lasseur}29_{, M. Lassnig}29_{, P. Laurelli}47_,

V. Lavorini36a,36b_{, W. Lavrijsen}14_{, P. Laycock}72_{, A.B. Lazarev}64_{, O. Le Dortz}77_{, E. Le Guirriec}82_{, C. Le Maner}157_,

E. Le Menedeu11_{, C. Lebel}92_{, T. LeCompte}5_{, F. Ledroit-Guillon}55_{, H. Lee}104_{, J.S.H. Lee}115_{, S.C. Lee}150_{, L. Lee}174_,

M. Lefebvre168_{, M. Legendre}135_{, A. Leger}49_{, B.C. LeGeyt}119_{, F. Legger}97_{, C. Leggett}14_{, M. Lehmacher}20_,

G. Lehmann Miotto29_{, X. Lei}6_{, M.A.L. Leite}23d_{, R. Leitner}125_{, D. Lellouch}170_{, M. Leltchouk}34_{, B. Lemmer}54_,

V. Lendermann58a, K.J.C. Leney144b, T. Lenz104, G. Lenzen173, B. Lenzi29, K. Leonhardt43, S. Leontsinis9, C. Leroy92, J-R. Lessard168, J. Lesser145a, C.G. Lester27, A. Leung Fook Cheong171, J. Levˆeque4, D. Levin86, L.J. Levinson170, M.S. Levitski127, A. Lewis117, G.H. Lewis107, A.M. Leyko20, M. Leyton15, B. Li82, H. Li171,s, S. Li32b,t, X. Li86, Z. Liang117,u_{, H. Liao}33_{, B. Liberti}132a_{, P. Lichard}29_{, M. Lichtnecker}97_{, K. Lie}164_{, W. Liebig}13_{, C. Limbach}20_,

A. Limosani85_{, M. Limper}62_{, S.C. Lin}150,v_{, F. Linde}104_{, J.T. Linnemann}87_{, E. Lipeles}119_{, L. Lipinsky}124_,

A. Lipniacka13_{, T.M. Liss}164_{, D. Lissauer}24_{, A. Lister}49_{, A.M. Litke}136_{, C. Liu}28_{, D. Liu}150_{, H. Liu}86_{, J.B. Liu}86_,

M. Liu32b_{, Y. Liu}32b_{, M. Livan}118a,118b_{, S.S.A. Livermore}117_{, A. Lleres}55_{, J. Llorente Merino}79_{, S.L. Lloyd}74_,

E. Lobodzinska41_{, P. Loch}6_{, W.S. Lockman}136_{, T. Loddenkoetter}20_{, F.K. Loebinger}81_{, A. Loginov}174_{, C.W. Loh}167_,

T. Lohse15_{, K. Lohwasser}48_{, M. Lokajicek}124_{, J. Loken}117_{, V.P. Lombardo}4_{, R.E. Long}70_{, L. Lopes}123a_,