Measurement of Z boson Production in Pb+Pb Collisions at sqrt(s_NN)=2.76 TeV with the ATLAS Detector

EUROPEAN ORGANISATION FOR NUCLEAR RESEARCH (CERN)

CERN-PH-EP-2012-223

Submitted to: Phys. Rev. Lett.

Measurement of

_√

Z

boson Production in Pb+Pb Collisions at

s

N N

= 2.76

TeV with the ATLAS Detector

The ATLAS Collaboration

Abstract

The ATLAS experiment has observed 1995 Z boson candidates in data corresponding to 0.15 nb

−1

of integrated luminosity obtained in the 2011 LHC Pb+Pb run at

√

s

N N

=2.76 TeV. The Z bosons are

reconstructed via di-electron and di-muon decay channels, with a background contamination of less

than 3%. Results from the two channels are consistent and are combined. Within the statistical and

systematic uncertainties, the per-event Z boson yield is proportional to the number of binary collisions

estimated by the Glauber model. The elliptic anisotropy of the azimuthal distribution of the Z boson

with respect to the event plane is found to be consistent with zero.

Measurement of Z boson Production in Pb+Pb Collisions at

√

s

N N

= 2.76 TeV with

the ATLAS Detector

ATLAS Collaboration

The ATLAS experiment has observed 1995 Z boson candidates in data corresponding to 0.15 nb−1

of integrated luminosity obtained in the 2011 LHC Pb+Pb run at√sN N=2.76 TeV. The Z bosons

are reconstructed via di-electron and di-muon decay channels, with a background contamination of less than 3%. Results from the two channels are consistent and are combined. Within the statistical and systematic uncertainties, the per-event Z boson yield is proportional to the number of binary collisions estimated by the Glauber model. The elliptic anisotropy of the azimuthal distribution of the Z boson with respect to the event plane is found to be consistent with zero.

PACS numbers: 25.75.-q, 23.70.+j, 25.75.Cj, 25.75.Dw

Extensive studies of heavy ion (HI) collisions carried out by the experiments at the Relativistic Heavy Ion Col-lider (RHIC) at BNL, and the Large Hadron ColCol-lider (LHC) at CERN, have established that the hot and dense matter produced in HI collisions causes a significant en-ergy loss on the energetic color-charge carriers propagat-ing through such a medium [1, 2]. An understandpropagat-ing of this phenomenon requires measuring the unmodified production rates of the particles before they lose energy. The best candidates to perform such measurements are particles that do not interact via the strong force. The PHENIX experiment at RHIC measured the properties of photons [3]. At the LHC, the CMS experiment reported results on photons and W bosons [4, 5]. The number of these bosons was found to scale with the number of incoherent nucelon-nucleon collisions. Both the ATLAS and CMS collaborations have reported measurements of Z → µµ production at √sN N=2.76 TeV [6, 7], which

show, within a limited statistical precision, the same scaling behavior. This Letter presents a precise mea-surement of Z boson production in Pb+Pb collisions at √

sN N=2.76 TeV, using the di-electron and di-muon

de-cay channels. The Z boson production rate is measured as a function of centrality, rapidity (yZ_{), transverse}

mo-mentum (pZ

T), and orientation with respect to the event

plane [8].

The ATLAS detector [9] at the LHC covers nearly the entire solid angle around the collision point. It con-sists of an inner tracking detector surrounded by a thin superconducting solenoid, electromagnetic and hadronic calorimeters, and a muon spectrometer incorporating three superconducting toroid magnet systems.

The inner-detector system (ID) is immersed in a 2 T axial magnetic field and provides charged particle track-ing in the range |η| < 2.5. The high-granularity silicon pixel detector covers the vertex region and is surrounded by the silicon microstrip tracker and the transition radi-ation tracker.

The calorimeters cover the range |η| < 4.9. Within the region |η| < 3.2, electromagnetic calorimetry is provided by barrel and end-cap high-granularity lead liquid-argon (LAr) calorimeters, with an additional thin LAr

presam-pler covering |η| < 1.8. The electromagnetic calorimeter is backed by a hadronic calorimter. Forward calorimeters (FCal) are located in the range 3.1 < |η| < 4.9.

The muon spectrometer (MS) comprises separate trig-ger and high-precision tracking chambers that measure the deflection of muons in a magnetic field generated by superconducting air-core toroids. The precision cham-bers cover the region |η| < 2.7 with three layers of moni-tored drift tubes (MDT), complemented by cathode strip chambers (CSC) in the innermost layer of the forward re-gion. The muon trigger system covers the range |η| < 2.4 with resistive plate chambers in the barrel, and thin gap chambers in the end-cap regions.

This analysis uses the 2011 LHC Pb+Pb collision data at√sN N = 2.76 TeV, obtained by the ATLAS

ex-periment with integrated luminosity of approximately 0.15 nb−1. The data sample for this study was collected using a three-level trigger system [10], which selected events with electron or muon candidates.

Electron candidates were identified at the first trig-ger level (L1) as a cluster of cells in the electromagnetic calorimeter, formed into (∆φ × ∆η) = 0.1 × 0.1 trigger towers, within the range |η| < 2.5, excluding the tran-sition region between calorimeter sections (1.37 < |η| < 1.52). The cluster transverse energy was required to ex-ceed ET= 14 GeV.

Muon candidates were selected using all three trigger levels. The L1 muon trigger searched for patterns of hits in the trigger chambers consistent with muons. If a muon had pTexceeding 4 GeV, the event was accepted for

fur-ther processing by the high-level trigger (HLT). The L1 muon algorithm also identified regions of interest (RoI) within the detector to be investigated by the HLT. In the HLT, the track parameters of each muon were recal-culated by including the precision data from the MDT or CSC in the RoI defined by the previous trigger level. Muon candidates were reconstructed either solely from the MS or using combined data from the MS and ID. In addition to the events selected using the RoI-based muon trigger, the reconstruction was performed over the whole MS by the HLT to identify muons with pT> 10 GeV. The

signal was detected in each of two Zero Degree Calorime-ters (ZDC) (|η| > 8.3), or which contained an energy deposition in the calorimeters of ET> 10 GeV.

In addition to the single-lepton trigger, each event had to pass the minimum-bias (MB) event selection, which required a timing signal coincidence of better than 3 ns between the MB trigger scintillators (2.1 < |η| < 3.8), as well as the reconstruction of a collision vertex in the ID. The total number of sampled events is (1.03 ± 0.02) × 109 [11].

Analyzed events are divided into centrality classes. Centrality reflects the overlap volume of the two colliding nuclei. Collisions with a small (large) impact parameter are referred to as central (peripheral). The overlap vol-ume is closely related to the average number of partici-pant nucleons which scatter inelastically in each nuclear collision, hNparti, and to the average number of binary

collisions between the nucleons of the colliding nuclei, hNcolli. Equivalently, hNcolli may be defined as the

aver-age nuclear thickness function, hTAAi, multiplied by the

total inelastic p + p cross section.

The Pb+Pb collision centrality is measured using the scalar sum of transverse energy (P ET) deposited in the

FCal, calibrated at the electromagnetic energy scale [12]. The fraction of events with more than one Pb+Pb colli-sion is estimated not to exceed 0.05%, except for the most central 5% of events in which the fraction does not ex-ceed 0.5%. A cut on the FCal energy ofP ET< 3.8 TeV

is applied to prevent contamination by events with mul-tiple Pb+Pb interactions. Glauber model calculations relate centrality to hNparti and hNcolli, following the

pro-cedure documented in Ref. [13]. In the present sample, hNcolli (hNparti) ranges from 1683 ± 130 (382 ± 2) for the

most central class, 0–5%, to 78 ± 7 (46 ± 3) for the most peripheral class, 40–80%.

The efficiencies of the electron and muon triggers are evaluated from 5.5 × 107 events selected with the MB trigger during the 2011 run. The MB trigger required a transverse energy deposition of ET > 50 GeV in the

calorimeters or a coincidence of both ZDC signals and a track in the ID. The average trigger efficiency for muons with pT > 10 GeV decreases from 98.2 ± 0.5% in

pe-ripheral events to 90.9 ± 0.5% in central events, where the ID occupancy is higher. The average trigger effi-ciency for electrons with |η| < 2.5 and ET > 20 GeV is

98.1 ± 0.1%, independent of centrality. The trigger ef-ficiency for Z → µµ decays ranges from 99.0 ± 0.6% in peripheral events to 95.0 ± 0.9% in central events. For Z → ee decays the efficiency is 99.9 ± 0.1% independent of centrality.

For the Z → ee analysis, electron candidates are formed using the standard ATLAS reconstruction algo-rithm [14], requiring the matching of a track to an en-ergy cluster in the electromagnetic calorimeter. Electron selection is limited to |η| < 2.5 and both electrons are required to have ET> 20 GeV. Following the

reconstruc-tion requirements, further electron identificareconstruc-tion cuts are made to reject background. The standard electron iden-tification cuts [14] used in the p + p environment are not suited to the Pb+Pb environment due to the large un-derlying event (UE) energy deposition in the calorimeter. To address this, a different set of cuts has been devel-oped to accommodate the modification of the calorime-ter variables by the presence of the UE. The cuts used are based on the energy balance between the track mo-mentum and cluster energy (E/p), as well as calorimeter shower shape variables. Furthermore, the UE energy is estimated (following Ref. [15]) and subtracted on an electron-by-electron basis to recover the proper electron energy.

The electron combined reconstruction and identifica-tion efficiency is evaluated in a Monte Carlo simulaidentifica-tion using electrons from 7 × 105

Pythia (version 6.425) [16] p + p → Z → ee events with 66 < mZ < 116 GeV and

|yZ_{| < 2.5 embedded into Pb+Pb events generated by}

the Hijing event generator (version 1.38b) [17]. The response of the ATLAS detector to the generated parti-cles is modeled using GEANT4 [18, 19]. The combined reconstruction and identification efficiency for electrons of ET> 20 GeV ranges from 72% to 76% from central to

peripheral events, with a common absolute uncertainty of 5.4%.

For the Z → ee analysis, all electrons found in trig-gered events are paired with each other, requiring that at least one electron in the pair match a trigger object. The opposite-sign charged pairs with an invariant mass satisfying 66 < mee< 102 GeV are accepted as signal Z

boson candidates. The same-sign pairs in this window are taken as an estimate of the combinatorial background. In total, 772 opposite-sign pairs and 42 same-sign pairs are reconstructed.

In the Z → µµ analysis, single muons are recon-structed with several levels of quality [20]. High quality muons are reconstructed in both the MS and ID with consistent angular measurements, as well as with a good match to the event vertex. At least one muon in each pair, matched to the trigger, is required to be of such quality. If the second muon in the pair has hit patterns in the MS and ID satisfying criteria of high reconstruc-tion quality, the minimum pT threshold is set to 10 GeV

for both muons. If the second muon fails this condition, both muons are required to satisfy pT> 20 GeV.

The muon combined reconstruction and identification efficiency is evaluated using muons from 5.3×105

Pythia p + p → Z → µµ events with 66 < mZ < 116 GeV and

|yZ_{| < 2.5 embedded into Hijing events. For muons}

with pT> 20 GeV, |η| < 2.5 and associated to the event

vertex, the reconstruction efficiency of the MS varies from 97 ± 1% to 98 ± 1% from central to peripheral events. Requiring a match between the MS and ID reduces the efficiency to 89 ± 1% and 91 ± 1%, respectively, due to track loss in the ID, predominantly at |η| > 1.5.

As in the Z → ee analysis, an invariant mass window of 66 < mµµ< 102 GeV is used to define oppositely charged

muon pairs as Z boson candidates and same-sign charged pairs as a background estimate. In total, 1223 opposite-sign candidates and 14 same-opposite-sign pairs are reconstructed in the Z → µµ channel.

The invariant mass distributions of the selected pairs together with estimated combinatorial backgrounds are shown in Fig. 1, compared with the simulation normal-ized to the number of pairs in the region 66 < m`` <

102 GeV (` = e, µ). In order to calculate the yield, the combinatorial background estimated with the same-sign pairs must be subtracted. Backgrounds from electroweak processes and top pair decays [21] are small compared to the combinatorial backgrounds, and their contribution is accounted for in the systematic uncertainty related to the background. [GeV] ee m 70 80 90 100 110 ] -1 dm [GeV ⁄ dN 0 50 100 Z→ee Opposite sign: 772 Same sign: 42 ATLAS = 2.76 TeV NN s Pb+Pb -1 = 0.15 nb int Data 2011 L [GeV] µ µ m 70 80 90 100 110 counts 0 50 100 Z→µµ 1223 14 Simulation

FIG. 1: The invariant mass distributions of Z → ee (left) and Z → µµ (right) candidates, integrated over momentum,

rapidity, and centrality. Bars represent the statistical

un-certainty. The number of pairs with 66 < m`` < 102 GeV

(marked by the vertical dashed lines) is listed. The simula-tion is weighted to match the centrality distribusimula-tion in data and normalized in the region 66 < m``< 102 GeV.

The main sources of systematic uncertainty in both measurement channels are associated with the precision to which the corrections applied to the data can be calcu-lated. In the p + p environment, the muon reconstruction efficiencies in data and simulation agree to 1% (2% for pT< 15 GeV) [22]. The MS maintains low occupancy in

the Pb+Pb environment. The difference in the fraction of muons reconstructed only in the MS, between data and simulation is used to estimate the systematic uncertainty on the reconstruction efficiency. To evaluate the uncer-tainty on the efficiency of the electron identification cuts, the efficiency is computed from the HI data using a tag-and-probe technique [14] and compared to the efficiency computed from simulation. The systematic uncertainty due to momentum resolution is estimated by introducing additional momentum smearing to the simulation. The

efficiency (resolution) uncertainties are ≈ 5.5% (2.5%) for Z → µµ, and 8% (2.5%) in Z → ee; these estimates vary with pZ

T and y

Z_.

The trigger efficiency uncertainties are estimated by using alternative methods and comparing their results with those obtained from the MB data set. For this com-parison the simulation trigger efficiency is used, as well as the conditional trigger efficiency of a second lepton in a triggered pair reconstructed as a Z boson.

For each Z → `` analysis, correction factors to ac-count for the efficiency (relative to Z bosons produced with 66 < mZ < 116 GeV) and detector resolution within

the selected acceptance based on the simulation are cal-culated differentially in event centrality, pZ_T, and yZ. In each decay channel, the correction factor is applied and the background, estimated by the same-sign pairs, is subtracted. The two measurements are averaged with weights set by their respective uncertainties.

The fully corrected yZ _{distribution is shown in Fig. 2.}

No centrality dependence of this shape is observed. The data are compared to a model composed of Pythia events normalized to the Z → `` cross section in p + p collisions at√sN N = 2.76 TeV taken from

next-to-next-to-leading-order (NNLO) calculations used in Ref. [23] and scaled by hTAAi. Incorporating p + n and n + n

colli-sions would increase the cross section by 3%. The shape is well reproduced by Pythia, and the integrated yield is in good agreement with the hTAAi-scaled NNLO cross

section. -2 0 2

dy

ll → Z

dN

events

N

7 10 2 4 6 ATLAS = 2.76 TeV NN s Pb+Pb -1 = 0.15 nb int Data 2011 L Centrality 0-80% ll → Z Model Z y -2 -1 0 1 2 Model Data 0.8 1.0 1.2

FIG. 2: The corrected per-event rapidity distribution of mea-sured Z bosons. Bars and boxes represent statistical and sys-tematic uncertainties, respectively. The data are compared to the model distribution shown as a band whose width is the normalization uncertainty.

The fully corrected pT distributions in five centrality

classes are shown in the left panel of Fig. 3 along with the model prediction. The shape as a function of pZ

T is well

reproduced by Pythia. The right panel of Fig. 3 shows the ratios of the data to the Pythia prediction scaled by

hTAAi. The ratios are constant within uncertainties for

all centrality classes over the range of measured pZ_T.

[GeV] Z T p 1 10 102 ] -2 [GeV T dp T p |y|<2.5 ll → Z dN events N 7 10 -2 10 3 10 ATLAS = 2.76 TeV NN s Pb+Pb Data 2011 -1 = 0.15 nb int L 100) × 0-5% ( 20) × 5-10% ( 5) × 10-20% ( 20-40% 40-80% [GeV] Z T p 1 10 ₁₀2

1

10

10

2

1 2 _40-80%

1

10

10

2

1 2 _20-40%

1

10

10

2

1 2 _10-20%

1

10

10

2

Data /₁ 2 _5-10%

1

10

10

2

Model 1 2 _0-5%

FIG. 3: Left: corrected per-event pZT spectra of measured Z

bosons in five centrality classes. The data are compared to a Pythia simulation normalized to the NNLO p + p cross

section and scaled by hTAAi, shown as bands. Right:

ra-tios of the data to the model in each centrality class. Bars represent statistical uncertainties, boxes represent systematic uncertainties, and bands represent the normalization uncer-tainty.

To further examine the binary collision scaling of the data, the Z boson per-event yields, divided by hNcolli,

are shown in Fig. 4 as a function of hNparti, in several

pZ

T bins. The figure demonstrates that the Z → ee and

Z → µµ results are consistent within their uncertainties for all pZ

T and centrality regions. Within the statistical

significance of the data sample, the Z boson per-event yield obeys binary collision scaling.

The elliptic anisotropy, v2, of the Z boson is defined as

v2= hcos 2(φ−Ψ2)i/σ2, where φ is the azimuthal angle of

the Z boson momentum vector and Ψ2 is the azimuthal

angle of the event plane, the plane containing the mo-mentum vectors of both lead nuclei and measured with resolution σ2[24]. The v2values measured in the two

de-cay channels are consistent and are combined. The main uncertainty on the v2measurement arises from the event

plane (EP) resolution, which is measured from the differ-ence of Ψ2determined using the two sides of the FCal at

positive and negative rapidities [24]. To ensure that the jets associated with Z boson production do not affect the determination of Ψ2, the EP resolution is also measured

ordering the FCal sides in the difference according to the direction of the Z boson. A systematic uncertainty of

〉 part N 〈 0 100 200 300 400 events N |y|<2.5 ll → Z N _〉 coll N 〈 9 10 2 4 6 ATLAS = 2.76 TeV NN s Pb+Pb -1 = 0.15 nb int Data 2011 L ee → Z ll → Z µ µ → Z Z T All p <10GeV Z T p <30GeV Z T 10<p >30GeV Z T p

FIG. 4: Centrality dependence of Z boson yields divided by

hNcolli. Results for ee (upward pointing triangles) and µµ

(downward pointing triangles) channels are shifted left and right, respectively, from their weighted average (diamonds). Bars and boxes represent statistical and systematic uncer-tainties, respectively. For the combined results, the brackets show the combined uncertainty including the uncertainty on hNcolli, and the dashed lines show the results of fits, using a

constant.

12 mrad is assigned for possible EP distortion.

The v2 of the Z boson is shown in Fig. 5 as a

func-tion of |yZ_{|, p}Z

T, and hNparti. The averaged v2 of

| Z |y 0 1 2 ₂ v -0.1 0.0 0.1 [GeV] Z T p 1 10 2 v -0.1 0.0 0.1 〉 part N 〈 200 400 2 v -0.1 0.0 0.1 ATLAS = 2.76 TeV NN s Pb+Pb -1 = 0.15 nb int Data 2011 L Centrality: 0-80%

FIG. 5: v2as a function of |yZ| (left), pZT(center), and hNparti

(right). Bars and boxes represent statistical and systematic uncertainties, respectively. The dashed lines show the results of constant fits to the v2 values, considering only statistical

uncertainties.

the Z boson has been measured to be v2 = −0.015 ±

0.018(stat.)±0.014(sys.), which indicates an isotropic dis-tribution. This observation is an independent measure-ment consistent with Z → `` yields being unaffected by the medium in HI collisions.

Using the ATLAS detector, Z boson production has been measured in Pb+Pb collisions at√sN N=2.76 TeV

using 0.15 nb−1 of integrated luminosity collected in the 2011 LHC physics run. Within |yZ| < 2.5, and 66 < m`` < 102 GeV, a total of 772 and 1223 Z boson

can-didates are reconstructed in the Z → ee and Z → µµ channels, respectively. The combinatorial background is at the level of 5% in the di-electron channel and 1% for the di-muon channel. The Z boson production yield in-tegrated over |yZ_{| < 2.5 is consistent between the two}

channels in all measured pTand centrality regions. The

momentum and rapidity distributions of the Z bosons are consistent with Pythia simulations of Z boson produc-tion in p + p collisions scaled to the NNLO cross secproduc-tion and multiplied by hTAAi. Within the uncertainties the Z

boson yield is found to be proportional to hNcolli. The

elliptic anisotropy of the Z boson measured as a function of rapidity, pZ_T and hNparti is consistent with zero within

the uncertainties of the measurements.

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, Ar-gentina; YerPhI, Armenia; ARC, Australia; BMWF and FWF, Austria; ANAS, Azerbaijan; SSTC, Be-larus; 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 and ERC, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Rus-sia and ROSATOM, RusRus-sian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Can-tons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Lever-hulme 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. Aad48_{, T. Abajyan}21_{, B. Abbott}111_{, J. Abdallah}12_{, S. Abdel Khalek}115_{, A.A. Abdelalim}49_{, O. Abdinov}11_,

R. Aben105_{, B. Abi}112_{, M. Abolins}88_{, O.S. AbouZeid}158_{, H. Abramowicz}153_{, H. Abreu}136_{, B.S. Acharya}164a,164b_,

L. Adamczyk38_{, D.L. Adams}25_{, T.N. Addy}56_{, J. Adelman}176_{, S. Adomeit}98_{, P. Adragna}75_{, T. Adye}129_{, S. Aefsky}23_,

J.A. Aguilar-Saavedra124b,a_{, M. Agustoni}17_{, M. Aharrouche}81_{, S.P. Ahlen}22_{, F. Ahles}48_{, A. Ahmad}148_{, M. Ahsan}41_,

G. Aielli133a,133b_{, T. Akdogan}19a_{, T.P.A. ˚Akesson}79_{, G. Akimoto}155_{, A.V. Akimov}94_{, M.S. Alam}2_{, M.A. Alam}76_,

J. Albert169_{, S. Albrand}55_{, M. Aleksa}30_{, I.N. Aleksandrov}64_{, F. Alessandria}89a_{, C. Alexa}26a_{, G. Alexander}153_,

G. Alexandre49_{, T. Alexopoulos}10_{, M. Alhroob}164a,164c_{, M. Aliev}16_{, G. Alimonti}89a_{, J. Alison}120_,

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A. Alonso79_{, F. Alonso}70_{, A. Altheimer}35_{, B. Alvarez Gonzalez}88_{, M.G. Alviggi}102a,102b_{, K. Amako}65_{, C. Amelung}23_,

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N. Andari115, T. Andeen35, C.F. Anders58b, G. Anders58a, K.J. Anderson31, A. Andreazza89a,89b, V. Andrei58a, M-L. Andrieux55, X.S. Anduaga70, P. Anger44, A. Angerami35, F. Anghinolfi30, A. Anisenkov107, N. Anjos124a, A. Annovi47, A. Antonaki9, M. Antonelli47, A. Antonov96, J. Antos144b, F. Anulli132a, M. Aoki101, S. Aoun83, L. Aperio Bella5, R. Apolle118,c, G. Arabidze88, I. Aracena143, Y. Arai65, A.T.H. Arce45, S. Arfaoui148, J-F. Arguin93_{, E. Arik}19a,∗_{, M. Arik}19a_{, A.J. Armbruster}87_{, O. Arnaez}81_{, V. Arnal}80_{, C. Arnault}115_,

A. Artamonov95_{, G. Artoni}132a,132b_{, D. Arutinov}21_{, S. Asai}155_{, S. Ask}28_{, B. ˚Asman}146a,146b_{, L. Asquith}6_,

K. Assamagan25_{, A. Astbury}169_{, M. Atkinson}165_{, B. Aubert}5_{, E. Auge}115_{, K. Augsten}127_{, M. Aurousseau}145a_,

G. Avolio163_{, R. Avramidou}10_{, D. Axen}168_{, G. Azuelos}93,d_{, Y. Azuma}155_{, M.A. Baak}30_{, G. Baccaglioni}89a_,

C. Bacci134a,134b_{, A.M. Bach}15_{, H. Bachacou}136_{, K. Bachas}30_{, M. Backes}49_{, M. Backhaus}21_{, J. Backus Mayes}143_,

E. Badescu26a_{, P. Bagnaia}132a,132b_{, S. Bahinipati}3_{, Y. Bai}33a_{, D.C. Bailey}158_{, T. Bain}158_{, J.T. Baines}129_,

O.K. Baker176_{, M.D. Baker}25_{, S. Baker}77_{, P. Balek}126_{, E. Banas}39_{, P. Banerjee}93_{, Sw. Banerjee}173_{, D. Banfi}30_,

A. Bangert150_{, V. Bansal}169_{, H.S. Bansil}18_{, L. Barak}172_{, S.P. Baranov}94_{, A. Barbaro Galtieri}15_{, T. Barber}48_,

E.L. Barberio86_{, D. Barberis}50a,50b_{, M. Barbero}21_{, D.Y. Bardin}64_{, T. Barillari}99_{, M. Barisonzi}175_{, T. Barklow}143_,

N. Barlow28_{, B.M. Barnett}129_{, R.M. Barnett}15_{, A. Baroncelli}134a_{, G. Barone}49_{, A.J. Barr}118_{, F. Barreiro}80_,

J. Barreiro Guimar˜aes da Costa57_{, P. Barrillon}115_{, R. Bartoldus}143_{, A.E. Barton}71_{, V. Bartsch}149_{, A. Basye}165_,

R.L. Bates53, L. Batkova144a, J.R. Batley28, A. Battaglia17, M. Battistin30, F. Bauer136, H.S. Bawa143,e, S. Beale98, T. Beau78, P.H. Beauchemin161, R. Beccherle50a, P. Bechtle21, H.P. Beck17, A.K. Becker175, S. Becker98,

M. Beckingham138, K.H. Becks175, A.J. Beddall19c, A. Beddall19c, S. Bedikian176, V.A. Bednyakov64, C.P. Bee83, L.J. Beemster105, M. Begel25, S. Behar Harpaz152, P.K. Behera62, M. Beimforde99, C. Belanger-Champagne85, P.J. Bell49_{, W.H. Bell}49_{, G. Bella}153_{, L. Bellagamba}20a_{, M. Bellomo}30_{, A. Belloni}57_{, O. Beloborodova}107,f_,

K. Belotskiy96_{, O. Beltramello}30_{, O. Benary}153_{, D. Benchekroun}135a_{, K. Bendtz}146a,146b_{, N. Benekos}165_,

Y. Benhammou153_{, E. Benhar Noccioli}49_{, J.A. Benitez Garcia}159b_{, D.P. Benjamin}45_{, M. Benoit}115_{, J.R. Bensinger}23_,

K. Benslama130_{, S. Bentvelsen}105_{, D. Berge}30_{, E. Bergeaas Kuutmann}42_{, N. Berger}5_{, F. Berghaus}169_,

E. Berglund105_{, J. Beringer}15_{, P. Bernat}77_{, R. Bernhard}48_{, C. Bernius}25_{, T. Berry}76_{, C. Bertella}83_{, A. Bertin}20a,20b_,

F. Bertolucci122a,122b_{, M.I. Besana}89a,89b_{, G.J. Besjes}104_{, N. Besson}136_{, S. Bethke}99_{, W. Bhimji}46_{, R.M. Bianchi}30_,

M. Bianco72a,72b_{, O. Biebel}98_{, S.P. Bieniek}77_{, K. Bierwagen}54_{, J. Biesiada}15_{, M. Biglietti}134a_{, H. Bilokon}47_,

M. Bindi20a,20b_{, S. Binet}115_{, A. Bingul}19c_{, C. Bini}132a,132b_{, C. Biscarat}178_{, B. Bittner}99_{, K.M. Black}22_{, R.E. Blair}6_,

J.-B. Blanchard136_{, G. Blanchot}30_{, T. Blazek}144a_{, I. Bloch}42_{, C. Blocker}23_{, J. Blocki}39_{, A. Blondel}49_{, W. Blum}81_,

U. Blumenschein54_{, G.J. Bobbink}105_{, V.B. Bobrovnikov}107_{, S.S. Bocchetta}79_{, A. Bocci}45_{, C.R. Boddy}118_,

M. Boehler48, J. Boek175, N. Boelaert36, J.A. Bogaerts30, A. Bogdanchikov107, A. Bogouch90,∗, C. Bohm146a, J. Bohm125, V. Boisvert76, T. Bold38, V. Boldea26a, N.M. Bolnet136, M. Bomben78, M. Bona75, M. Boonekamp136, S. Bordoni78, C. Borer17, A. Borisov128, G. Borissov71, I. Borjanovic13a, M. Borri82, S. Borroni87,

V. Bortolotto134a,134b, K. Bos105, D. Boscherini20a, M. Bosman12, H. Boterenbrood105, J. Bouchami93, J. Boudreau123, E.V. Bouhova-Thacker71, D. Boumediene34, C. Bourdarios115, N. Bousson83, A. Boveia31,

J. Boyd30_{, I.R. Boyko}64_{, I. Bozovic-Jelisavcic}13b_{, J. Bracinik}18_{, P. Branchini}134a_{, G.W. Brandenburg}57_{, A. Brandt}8_,

G. Brandt118_{, O. Brandt}54_{, U. Bratzler}156_{, B. Brau}84_{, J.E. Brau}114_{, H.M. Braun}175,∗_{, S.F. Brazzale}164a,164c_,

B. Brelier158_{, J. Bremer}30_{, K. Brendlinger}120_{, R. Brenner}166_{, S. Bressler}172_{, D. Britton}53_{, F.M. Brochu}28_{, I. Brock}21_,

R. Brock88_{, F. Broggi}89a_{, C. Bromberg}88_{, J. Bronner}99_{, G. Brooijmans}35_{, T. Brooks}76_{, W.K. Brooks}32b_,

G. Brown82_{, H. Brown}8_{, P.A. Bruckman de Renstrom}39_{, D. Bruncko}144b_{, R. Bruneliere}48_{, S. Brunet}60_{, A. Bruni}20a_,

G. Bruni20a_{, M. Bruschi}20a_{, T. Buanes}14_{, Q. Buat}55_{, F. Bucci}49_{, J. Buchanan}118_{, P. Buchholz}141_,

R.M. Buckingham118_{, A.G. Buckley}46_{, S.I. Buda}26a_{, I.A. Budagov}64_{, B. Budick}108_{, V. B¨uscher}81_{, L. Bugge}117_,

O. Bulekov96_{, A.C. Bundock}73_{, M. Bunse}43_{, T. Buran}117_{, H. Burckhart}30_{, S. Burdin}73_{, T. Burgess}14_{, S. Burke}129_,

E. Busato34_{, P. Bussey}53_{, C.P. Buszello}166_{, B. Butler}143_{, J.M. Butler}22_{, C.M. Buttar}53_{, J.M. Butterworth}77_,

R. Calkins106, L.P. Caloba24a, R. Caloi132a,132b, D. Calvet34, S. Calvet34, R. Camacho Toro34, P. Camarri133a,133b, D. Cameron117, L.M. Caminada15, R. Caminal Armadans12, S. Campana30, M. Campanelli77, V. Canale102a,102b, F. Canelli31,g_{, A. Canepa}159a_{, J. Cantero}80_{, R. Cantrill}76_{, L. Capasso}102a,102b_{, M.D.M. Capeans Garrido}30_,

I. Caprini26a_{, M. Caprini}26a_{, D. Capriotti}99_{, M. Capua}37a,37b_{, R. Caputo}81_{, R. Cardarelli}133a_{, T. Carli}30_,

G. Carlino102a_{, L. Carminati}89a,89b_{, B. Caron}85_{, S. Caron}104_{, E. Carquin}32b_{, G.D. Carrillo Montoya}173_,

A.A. Carter75_{, J.R. Carter}28_{, J. Carvalho}124a,h_{, D. Casadei}108_{, M.P. Casado}12_{, M. Cascella}122a,122b_{, C. Caso}50a,50b,∗_,

A.M. Castaneda Hernandez173,i_{, E. Castaneda-Miranda}173_{, V. Castillo Gimenez}167_{, N.F. Castro}124a_{, G. Cataldi}72a_,

P. Catastini57_{, A. Catinaccio}30_{, J.R. Catmore}30_{, A. Cattai}30_{, G. Cattani}133a,133b_{, S. Caughron}88_{, V. Cavaliere}165_,

P. Cavalleri78_{, D. Cavalli}89a_{, M. Cavalli-Sforza}12_{, V. Cavasinni}122a,122b_{, F. Ceradini}134a,134b_{, A.S. Cerqueira}24b_,

A. Cerri30_{, L. Cerrito}75_{, F. Cerutti}47_{, S.A. Cetin}19b_{, A. Chafaq}135a_{, D. Chakraborty}106_{, I. Chalupkova}126_{, K. Chan}3_,

P. Chang165_{, B. Chapleau}85_{, J.D. Chapman}28_{, J.W. Chapman}87_{, E. Chareyre}78_{, D.G. Charlton}18_{, V. Chavda}82_,

C.A. Chavez Barajas30_{, S. Cheatham}85_{, S. Chekanov}6_{, S.V. Chekulaev}159a_{, G.A. Chelkov}64_{, M.A. Chelstowska}104_,

C. Chen63, H. Chen25, S. Chen33c, X. Chen173, Y. Chen35, Y. Cheng31, A. Cheplakov64,

R. Cherkaoui El Moursli135e, V. Chernyatin25, E. Cheu7, S.L. Cheung158, L. Chevalier136, G. Chiefari102a,102b, L. Chikovani51a,∗, J.T. Childers30, A. Chilingarov71, G. Chiodini72a, A.S. Chisholm18, R.T. Chislett77, A. Chitan26a, M.V. Chizhov64, G. Choudalakis31, S. Chouridou137, I.A. Christidi77, A. Christov48, D. Chromek-Burckhart30, M.L. Chu151, J. Chudoba125, G. Ciapetti132a,132b, A.K. Ciftci4a, R. Ciftci4a, D. Cinca34, V. Cindro74,

C. Ciocca20a,20b_{, A. Ciocio}15_{, M. Cirilli}87_{, P. Cirkovic}13b_{, Z.H. Citron}172_{, M. Citterio}89a_{, M. Ciubancan}26a_,

A. Clark49_{, P.J. Clark}46_{, R.N. Clarke}15_{, W. Cleland}123_{, J.C. Clemens}83_{, B. Clement}55_{, C. Clement}146a,146b_,

Y. Coadou83_{, M. Cobal}164a,164c_{, A. Coccaro}138_{, J. Cochran}63_{, L. Coffey}23_{, J.G. Cogan}143_{, J. Coggeshall}165_,

E. Cogneras178_{, J. Colas}5_{, S. Cole}106_{, A.P. Colijn}105_{, N.J. Collins}18_{, C. Collins-Tooth}53_{, J. Collot}55_,

T. Colombo119a,119b_{, G. Colon}84_{, G. Compostella}99_{, P. Conde Mui˜no}124a_{, E. Coniavitis}166_{, M.C. Conidi}12_,

S.M. Consonni89a,89b_{, V. Consorti}48_{, S. Constantinescu}26a_{, C. Conta}119a,119b_{, G. Conti}57_{, F. Conventi}102a,j_,

M. Cooke15_{, B.D. Cooper}77_{, A.M. Cooper-Sarkar}118_{, K. Copic}15_{, T. Cornelissen}175_{, M. Corradi}20a_{, F. Corriveau}85,k_,

A. Cortes-Gonzalez165_{, G. Cortiana}99_{, G. Costa}89a_{, M.J. Costa}167_{, D. Costanzo}139_{, D. Cˆot´e}30_{, L. Courneyea}169_,

G. Cowan76_{, C. Cowden}28_{, B.E. Cox}82_{, K. Cranmer}108_{, F. Crescioli}122a,122b_{, M. Cristinziani}21_{, G. Crosetti}37a,37b_,

S. Cr´ep´e-Renaudin55_{, C.-M. Cuciuc}26a_{, C. Cuenca Almenar}176_{, T. Cuhadar Donszelmann}139_{, M. Curatolo}47_,

C.J. Curtis18, C. Cuthbert150, P. Cwetanski60, H. Czirr141, P. Czodrowski44, Z. Czyczula176, S. D’Auria53, M. D’Onofrio73, A. D’Orazio132a,132b, M.J. Da Cunha Sargedas De Sousa124a, C. Da Via82, W. Dabrowski38, A. Dafinca118, T. Dai87, C. Dallapiccola84, M. Dam36, M. Dameri50a,50b, D.S. Damiani137, H.O. Danielsson30, V. Dao49, G. Darbo50a, G.L. Darlea26b, J.A. Dassoulas42, W. Davey21, T. Davidek126, N. Davidson86,

R. Davidson71_{, E. Davies}118,c_{, M. Davies}93_{, O. Davignon}78_{, A.R. Davison}77_{, Y. Davygora}58a_{, E. Dawe}142_,

I. Dawson139_{, R.K. Daya-Ishmukhametova}23_{, K. De}8_{, R. de Asmundis}102a_{, S. De Castro}20a,20b_{, S. De Cecco}78_,

J. de Graat98_{, N. De Groot}104_{, P. de Jong}105_{, C. De La Taille}115_{, H. De la Torre}80_{, F. De Lorenzi}63_{, L. de Mora}71_,

L. De Nooij105_{, D. De Pedis}132a_{, A. De Salvo}132a_{, U. De Sanctis}164a,164c_{, A. De Santo}149_{, J.B. De Vivie De Regie}115_,

G. De Zorzi132a,132b_{, W.J. Dearnaley}71_{, R. Debbe}25_{, C. Debenedetti}46_{, B. Dechenaux}55_{, D.V. Dedovich}64_,

J. Degenhardt120_{, C. Del Papa}164a,164c_{, J. Del Peso}80_{, T. Del Prete}122a,122b_{, T. Delemontex}55_{, M. Deliyergiyev}74_,

A. Dell’Acqua30_{, L. Dell’Asta}22_{, M. Della Pietra}102a,j_{, D. della Volpe}102a,102b_{, M. Delmastro}5_{, P.A. Delsart}55_,

C. Deluca105_{, S. Demers}176_{, M. Demichev}64_{, B. Demirkoz}12,l_{, J. Deng}163_{, S.P. Denisov}128_{, D. Derendarz}39_,

J.E. Derkaoui135d_{, F. Derue}78_{, P. Dervan}73_{, K. Desch}21_{, E. Devetak}148_{, P.O. Deviveiros}105_{, A. Dewhurst}129_,

B. DeWilde148_{, S. Dhaliwal}158_{, R. Dhullipudi}25,m_{, A. Di Ciaccio}133a,133b_{, L. Di Ciaccio}5_{, A. Di Girolamo}30_,

B. Di Girolamo30_{, S. Di Luise}134a,134b_{, A. Di Mattia}173_{, B. Di Micco}30_{, R. Di Nardo}47_{, A. Di Simone}133a,133b_,

R. Di Sipio20a,20b, M.A. Diaz32a, E.B. Diehl87, J. Dietrich42, T.A. Dietzsch58a, S. Diglio86, K. Dindar Yagci40, J. Dingfelder21, F. Dinut26a, C. Dionisi132a,132b, P. Dita26a, S. Dita26a, F. Dittus30, F. Djama83, T. Djobava51b, M.A.B. do Vale24c, A. Do Valle Wemans124a,n, T.K.O. Doan5, M. Dobbs85, R. Dobinson30,∗, D. Dobos30, E. Dobson30,o, J. Dodd35, C. Doglioni49, T. Doherty53, Y. Doi65,∗, J. Dolejsi126, I. Dolenc74, Z. Dolezal126, B.A. Dolgoshein96,∗_{, T. Dohmae}155_{, M. Donadelli}24d_{, J. Donini}34_{, J. Dopke}30_{, A. Doria}102a_{, A. Dos Anjos}173_,

A. Dotti122a,122b_{, M.T. Dova}70_{, A.D. Doxiadis}105_{, A.T. Doyle}53_{, N. Dressnandt}120_{, M. Dris}10_{, J. Dubbert}99_,

S. Dube15_{, E. Duchovni}172_{, G. Duckeck}98_{, D. Duda}175_{, A. Dudarev}30_{, F. Dudziak}63_{, M. D¨uhrssen}30_,

I.P. Duerdoth82_{, L. Duflot}115_{, M-A. Dufour}85_{, L. Duguid}76_{, M. Dunford}58a_{, H. Duran Yildiz}4a_{, R. Duxfield}139_,

M. Dwuznik38_{, F. Dydak}30_{, M. D¨uren}52_{, W.L. Ebenstein}45_{, J. Ebke}98_{, S. Eckweiler}81_{, K. Edmonds}81_{, W. Edson}2_,

C.A. Edwards76_{, N.C. Edwards}53_{, W. Ehrenfeld}42_{, T. Eifert}143_{, G. Eigen}14_{, K. Einsweiler}15_{, E. Eisenhandler}75_,

T. Ekelof166_{, M. El Kacimi}135c_{, M. Ellert}166_{, S. Elles}5_{, F. Ellinghaus}81_{, K. Ellis}75_{, N. Ellis}30_{, J. Elmsheuser}98_,

M. Elsing30_{, D. Emeliyanov}129_{, R. Engelmann}148_{, A. Engl}98_{, B. Epp}61_{, J. Erdmann}54_{, A. Ereditato}17_,

D. Eriksson146a_{, J. Ernst}2_{, M. Ernst}25_{, J. Ernwein}136_{, D. Errede}165_{, S. Errede}165_{, E. Ertel}81_{, M. Escalier}115_,

D. Evangelakou54, H. Evans60, L. Fabbri20a,20b, C. Fabre30, R.M. Fakhrutdinov128, S. Falciano132a, Y. Fang173, M. Fanti89a,89b, A. Farbin8, A. Farilla134a, J. Farley148, T. Farooque158, S. Farrell163, S.M. Farrington170,

P. Farthouat30_{, F. Fassi}167_{, P. Fassnacht}30_{, D. Fassouliotis}9_{, B. Fatholahzadeh}158_{, A. Favareto}89a,89b_{, L. Fayard}115_,

S. Fazio37a,37b_{, R. Febbraro}34_{, P. Federic}144a_{, O.L. Fedin}121_{, W. Fedorko}88_{, M. Fehling-Kaschek}48_{, L. Feligioni}83_,

D. Fellmann6_{, C. Feng}33d_{, E.J. Feng}6_{, A.B. Fenyuk}128_{, J. Ferencei}144b_{, W. Fernando}6_{, S. Ferrag}53_{, J. Ferrando}53_,

V. Ferrara42_{, A. Ferrari}166_{, P. Ferrari}105_{, R. Ferrari}119a_{, D.E. Ferreira de Lima}53_{, A. Ferrer}167_{, D. Ferrere}49_,

C. Ferretti87_{, A. Ferretto Parodi}50a,50b_{, M. Fiascaris}31_{, F. Fiedler}81_{, A. Filipˇciˇc}74_{, F. Filthaut}104_,

M. Fincke-Keeler169_{, M.C.N. Fiolhais}124a,h_{, L. Fiorini}167_{, A. Firan}40_{, G. Fischer}42_{, M.J. Fisher}109_{, M. Flechl}48_,

I. Fleck141_{, J. Fleckner}81_{, P. Fleischmann}174_{, S. Fleischmann}175_{, T. Flick}175_{, A. Floderus}79_{, L.R. Flores Castillo}173_,

M.J. Flowerdew99_{, T. Fonseca Martin}17_{, A. Formica}136_{, A. Forti}82_{, D. Fortin}159a_{, D. Fournier}115_{, A.J. Fowler}45_,

H. Fox71_{, P. Francavilla}12_{, M. Franchini}20a,20b_{, S. Franchino}119a,119b_{, D. Francis}30_{, T. Frank}172_{, M. Franklin}57_,

S. Franz30_{, M. Fraternali}119a,119b_{, S. Fratina}120_{, S.T. French}28_{, C. Friedrich}42_{, F. Friedrich}44_{, R. Froeschl}30_,

D. Froidevaux30, J.A. Frost28, C. Fukunaga156, E. Fullana Torregrosa30, B.G. Fulsom143, J. Fuster167, C. Gabaldon30, O. Gabizon172, T. Gadfort25, S. Gadomski49, G. Gagliardi50a,50b, P. Gagnon60, C. Galea98, B. Galhardo124a, E.J. Gallas118, V. Gallo17, B.J. Gallop129, P. Gallus125, K.K. Gan109, Y.S. Gao143,e,

A. Gaponenko15, F. Garberson176, M. Garcia-Sciveres15, C. Garc´ıa167, J.E. Garc´ıa Navarro167, R.W. Gardner31, N. Garelli30, H. Garitaonandia105, V. Garonne30, C. Gatti47, G. Gaudio119a, B. Gaur141, L. Gauthier136,

P. Gauzzi132a,132b_{, I.L. Gavrilenko}94_{, C. Gay}168_{, G. Gaycken}21_{, E.N. Gazis}10_{, P. Ge}33d_{, Z. Gecse}168_{, C.N.P. Gee}129_,

D.A.A. Geerts105_{, Ch. Geich-Gimbel}21_{, K. Gellerstedt}146a,146b_{, C. Gemme}50a_{, A. Gemmell}53_{, M.H. Genest}55_,

S. Gentile132a,132b_{, M. George}54_{, S. George}76_{, P. Gerlach}175_{, A. Gershon}153_{, C. Geweniger}58a_{, H. Ghazlane}135b_,

N. Ghodbane34_{, B. Giacobbe}20a_{, S. Giagu}132a,132b_{, V. Giakoumopoulou}9_{, V. Giangiobbe}12_{, F. Gianotti}30_,

B. Gibbard25_{, A. Gibson}158_{, S.M. Gibson}30_{, D. Gillberg}29_{, A.R. Gillman}129_{, D.M. Gingrich}3,d_{, J. Ginzburg}153_,

N. Giokaris9_{, M.P. Giordani}164c_{, R. Giordano}102a,102b_{, F.M. Giorgi}16_{, P. Giovannini}99_{, P.F. Giraud}136_{, D. Giugni}89a_,

M. Giunta93_{, P. Giusti}20a_{, B.K. Gjelsten}117_{, L.K. Gladilin}97_{, C. Glasman}80_{, J. Glatzer}21_{, A. Glazov}42_,

K.W. Glitza175_{, G.L. Glonti}64_{, J.R. Goddard}75_{, J. Godfrey}142_{, J. Godlewski}30_{, M. Goebel}42_{, T. G¨opfert}44_,

C. Goeringer81_{, C. G¨ossling}43_{, S. Goldfarb}87_{, T. Golling}176_{, A. Gomes}124a,b_{, L.S. Gomez Fajardo}42_{, R. Gon¸calo}76_,

J. Goncalves Pinto Firmino Da Costa42_{, L. Gonella}21_{, S. Gonz´alez de la Hoz}167_{, G. Gonzalez Parra}12_,

M.L. Gonzalez Silva27, S. Gonzalez-Sevilla49, J.J. Goodson148, L. Goossens30, P.A. Gorbounov95, H.A. Gordon25, I. Gorelov103, G. Gorfine175, B. Gorini30, E. Gorini72a,72b, A. Goriˇsek74, E. Gornicki39, B. Gosdzik42, A.T. Goshaw6, M. Gosselink105, M.I. Gostkin64, I. Gough Eschrich163, M. Gouighri135a, D. Goujdami135c, M.P. Goulette49,

A.G. Goussiou138, C. Goy5, S. Gozpinar23, I. Grabowska-Bold38, P. Grafstr¨om20a,20b, K-J. Grahn42, E. Gramstad117, F. Grancagnolo72a_{, S. Grancagnolo}16_{, V. Grassi}148_{, V. Gratchev}121_{, N. Grau}35_{, H.M. Gray}30_{, J.A. Gray}148_,

E. Graziani134a_{, O.G. Grebenyuk}121_{, T. Greenshaw}73_{, Z.D. Greenwood}25,m_{, K. Gregersen}36_{, I.M. Gregor}42_,

P. Grenier143_{, J. Griffiths}8_{, N. Grigalashvili}64_{, A.A. Grillo}137_{, S. Grinstein}12_{, Ph. Gris}34_{, Y.V. Grishkevich}97_,

J.-F. Grivaz115_{, E. Gross}172_{, J. Grosse-Knetter}54_{, J. Groth-Jensen}172_{, K. Grybel}141_{, D. Guest}176_{, C. Guicheney}34_,

S. Guindon54_{, U. Gul}53_{, J. Gunther}125_{, B. Guo}158_{, J. Guo}35_{, P. Gutierrez}111_{, N. Guttman}153_{, O. Gutzwiller}173_,

C. Guyot136_{, C. Gwenlan}118_{, C.B. Gwilliam}73_{, A. Haas}143_{, S. Haas}30_{, C. Haber}15_{, H.K. Hadavand}40_{, D.R. Hadley}18_,

P. Haefner21_{, F. Hahn}30_{, S. Haider}30_{, Z. Hajduk}39_{, H. Hakobyan}177_{, D. Hall}118_{, K. Hamacher}175_{, P. Hamal}113_,

M. Hamer54_{, A. Hamilton}145b,p_{, S. Hamilton}161_{, L. Han}33b_{, K. Hanagaki}116_{, K. Hanawa}160_{, M. Hance}15_,

C. Handel81_{, P. Hanke}58a_{, J.R. Hansen}36_{, J.B. Hansen}36_{, J.D. Hansen}36_{, P.H. Hansen}36_{, P. Hansson}143_{, K. Hara}160_,

G.A. Hare137_{, T. Harenberg}175_{, S. Harkusha}90_{, D. Harper}87_{, R.D. Harrington}46_{, O.M. Harris}138_{, J. Hartert}48_,

F. Hartjes105_{, T. Haruyama}65_{, A. Harvey}56_{, S. Hasegawa}101_{, Y. Hasegawa}140_{, S. Hassani}136_{, S. Haug}17_,

M. Hauschild30, R. Hauser88, M. Havranek21, C.M. Hawkes18, R.J. Hawkings30, A.D. Hawkins79, T. Hayakawa66, T. Hayashi160, D. Hayden76, C.P. Hays118, H.S. Hayward73, S.J. Haywood129, S.J. Head18, V. Hedberg79,

L. Heelan8, S. Heim88, B. Heinemann15, S. Heisterkamp36, L. Helary22, C. Heller98, M. Heller30, S. Hellman146a,146b, D. Hellmich21, C. Helsens12, R.C.W. Henderson71, M. Henke58a, A. Henrichs54, A.M. Henriques Correia30,

S. Henrot-Versille115_{, C. Hensel}54_{, T. Henß}175_{, C.M. Hernandez}8_{, Y. Hern´andez Jim´enez}167_{, R. Herrberg}16_,

G. Herten48_{, R. Hertenberger}98_{, L. Hervas}30_{, G.G. Hesketh}77_{, N.P. Hessey}105_{, E. Hig´on-Rodriguez}167_{, J.C. Hill}28_,

K.H. Hiller42_{, S. Hillert}21_{, S.J. Hillier}18_{, I. Hinchliffe}15_{, E. Hines}120_{, M. Hirose}116_{, F. Hirsch}43_{, D. Hirschbuehl}175_,

J. Hobbs148_{, N. Hod}153_{, M.C. Hodgkinson}139_{, P. Hodgson}139_{, A. Hoecker}30_{, M.R. Hoeferkamp}103_{, J. Hoffman}40_,

D. Hoffmann83_{, M. Hohlfeld}81_{, M. Holder}141_{, S.O. Holmgren}146a_{, T. Holy}127_{, J.L. Holzbauer}88_{, T.M. Hong}120_,

L. Hooft van Huysduynen108_{, S. Horner}48_{, J-Y. Hostachy}55_{, S. Hou}151_{, A. Hoummada}135a_{, J. Howard}118_,

J. Howarth82_{, I. Hristova}16_{, J. Hrivnac}115_{, T. Hryn’ova}5_{, P.J. Hsu}81_{, S.-C. Hsu}15_{, D. Hu}35_{, Z. Hubacek}127_,

F. Hubaut83_{, F. Huegging}21_{, A. Huettmann}42_{, T.B. Huffman}118_{, E.W. Hughes}35_{, G. Hughes}71_{, M. Huhtinen}30_,

M. Hurwitz15_{, N. Huseynov}64,q_{, J. Huston}88_{, J. Huth}57_{, G. Iacobucci}49_{, G. Iakovidis}10_{, M. Ibbotson}82_,

D. Iliadis154, N. Ilic158, T. Ince99, J. Inigo-Golfin30, P. Ioannou9, M. Iodice134a, K. Iordanidou9, V. Ippolito132a,132b, A. Irles Quiles167, C. Isaksson166, M. Ishino67, M. Ishitsuka157, R. Ishmukhametov109, C. Issever118, S. Istin19a, A.V. Ivashin128_{, W. Iwanski}39_{, H. Iwasaki}65_{, J.M. Izen}41_{, V. Izzo}102a_{, B. Jackson}120_{, J.N. Jackson}73_{, P. Jackson}1_,

M.R. Jaekel30_{, V. Jain}60_{, K. Jakobs}48_{, S. Jakobsen}36_{, T. Jakoubek}125_{, J. Jakubek}127_{, D.O. Jamin}151_{, D.K. Jana}111_,

E. Jansen77_{, H. Jansen}30_{, A. Jantsch}99_{, M. Janus}48_{, G. Jarlskog}79_{, L. Jeanty}57_{, I. Jen-La Plante}31_{, D. Jennens}86_,

P. Jenni30_{, A.E. Loevschall-Jensen}36_{, P. Jeˇz}36_{, S. J´ez´equel}5_{, M.K. Jha}20a_{, H. Ji}173_{, W. Ji}81_{, J. Jia}148_{, Y. Jiang}33b_,

M. Jimenez Belenguer42_{, S. Jin}33a_{, O. Jinnouchi}157_{, M.D. Joergensen}36_{, D. Joffe}40_{, M. Johansen}146a,146b_,

K.E. Johansson146a_{, P. Johansson}139_{, S. Johnert}42_{, K.A. Johns}7_{, K. Jon-And}146a,146b_{, G. Jones}170_{, R.W.L. Jones}71_,

T.J. Jones73_{, C. Joram}30_{, P.M. Jorge}124a_{, K.D. Joshi}82_{, J. Jovicevic}147_{, T. Jovin}13b_{, X. Ju}173_{, C.A. Jung}43_,

R.M. Jungst30_{, V. Juranek}125_{, P. Jussel}61_{, A. Juste Rozas}12_{, S. Kabana}17_{, M. Kaci}167_{, A. Kaczmarska}39_,

P. Kadlecik36_{, M. Kado}115_{, H. Kagan}109_{, M. Kagan}57_{, E. Kajomovitz}152_{, S. Kalinin}175_{, L.V. Kalinovskaya}64_,

S. Kama40_{, N. Kanaya}155_{, M. Kaneda}30_{, S. Kaneti}28_{, T. Kanno}157_{, V.A. Kantserov}96_{, J. Kanzaki}65_{, B. Kaplan}108_,

A. Kapliy31, J. Kaplon30, D. Kar53, M. Karagounis21, K. Karakostas10, M. Karnevskiy42, V. Kartvelishvili71, A.N. Karyukhin128, L. Kashif173, G. Kasieczka58b, R.D. Kass109, A. Kastanas14, M. Kataoka5, Y. Kataoka155, E. Katsoufis10, J. Katzy42, V. Kaushik7, K. Kawagoe69, T. Kawamoto155, G. Kawamura81, M.S. Kayl105, S. Kazama155, V.A. Kazanin107, M.Y. Kazarinov64, R. Keeler169, P.T. Keener120, R. Kehoe40, M. Keil54, G.D. Kekelidze64, J.S. Keller138, M. Kenyon53, O. Kepka125, N. Kerschen30, B.P. Kerˇsevan74, S. Kersten175, K. Kessoku155_{, J. Keung}158_{, F. Khalil-zada}11_{, H. Khandanyan}146a,146b_{, A. Khanov}112_{, D. Kharchenko}64_,

A. Khodinov96_{, A. Khomich}58a_{, T.J. Khoo}28_{, G. Khoriauli}21_{, A. Khoroshilov}175_{, V. Khovanskiy}95_{, E. Khramov}64_,

J. Khubua51b_{, H. Kim}146a,146b_{, S.H. Kim}160_{, N. Kimura}171_{, O. Kind}16_{, B.T. King}73_{, M. King}66_{, R.S.B. King}118_,

J. Kirk129_{, A.E. Kiryunin}99_{, T. Kishimoto}66_{, D. Kisielewska}38_{, T. Kitamura}66_{, T. Kittelmann}123_{, K. Kiuchi}160_,

E. Kladiva144b_{, M. Klein}73_{, U. Klein}73_{, K. Kleinknecht}81_{, M. Klemetti}85_{, A. Klier}172_{, P. Klimek}146a,146b_,

A. Klimentov25_{, R. Klingenberg}43_{, J.A. Klinger}82_{, E.B. Klinkby}36_{, T. Klioutchnikova}30_{, P.F. Klok}104_{, S. Klous}105_,

E.-E. Kluge58a_{, T. Kluge}73_{, P. Kluit}105_{, S. Kluth}99_{, E. Kneringer}61_{, E.B.F.G. Knoops}83_{, A. Knue}54_{, B.R. Ko}45_,

T. Kobayashi155_{, M. Kobel}44_{, M. Kocian}143_{, P. Kodys}126_{, K. K¨oneke}30_{, A.C. K¨onig}104_{, S. Koenig}81_{, L. K¨opke}81_,

F. Koetsveld104_{, P. Koevesarki}21_{, T. Koffas}29_{, E. Koffeman}105_{, L.A. Kogan}118_{, S. Kohlmann}175_{, F. Kohn}54_,

Z. Kohout127_{, T. Kohriki}65_{, T. Koi}143_{, G.M. Kolachev}107,∗_{, H. Kolanoski}16_{, V. Kolesnikov}64_{, I. Koletsou}89a_,

J. Koll88, A.A. Komar94, Y. Komori155, T. Kondo65, T. Kono42,r, A.I. Kononov48, R. Konoplich108,s, N. Konstantinidis77, R. Kopeliansky152, S. Koperny38, K. Korcyl39, K. Kordas154, A. Korn118, A. Korol107, I. Korolkov12, E.V. Korolkova139, V.A. Korotkov128, O. Kortner99, S. Kortner99, V.V. Kostyukhin21, S. Kotov99, V.M. Kotov64, A. Kotwal45, C. Kourkoumelis9, V. Kouskoura154, A. Koutsman159a, R. Kowalewski169,

T.Z. Kowalski38_{, W. Kozanecki}136_{, A.S. Kozhin}128_{, V. Kral}127_{, V.A. Kramarenko}97_{, G. Kramberger}74_,

M.W. Krasny78_{, A. Krasznahorkay}108_{, J.K. Kraus}21_{, S. Kreiss}108_{, F. Krejci}127_{, J. Kretzschmar}73_{, N. Krieger}54_,

P. Krieger158_{, K. Kroeninger}54_{, H. Kroha}99_{, J. Kroll}120_{, J. Kroseberg}21_{, J. Krstic}13a_{, U. Kruchonak}64_{, H. Kr¨uger}21_,

T. Kruker17_{, N. Krumnack}63_{, Z.V. Krumshteyn}64_{, T. Kubota}86_{, S. Kuday}4a_{, S. Kuehn}48_{, A. Kugel}58c_{, T. Kuhl}42_,

D. Kuhn61_{, V. Kukhtin}64_{, Y. Kulchitsky}90_{, S. Kuleshov}32b_{, C. Kummer}98_{, M. Kuna}78_{, J. Kunkle}120_{, A. Kupco}125_,

H. Kurashige66_{, M. Kurata}160_{, Y.A. Kurochkin}90_{, V. Kus}125_{, E.S. Kuwertz}147_{, M. Kuze}157_{, J. Kvita}142_{, R. Kwee}16_,

A. La Rosa49_{, L. La Rotonda}37a,37b_{, L. Labarga}80_{, J. Labbe}5_{, S. Lablak}135a_{, C. Lacasta}167_{, F. Lacava}132a,132b_,

J. Lacey29_{, H. Lacker}16_{, D. Lacour}78_{, V.R. Lacuesta}167_{, E. Ladygin}64_{, R. Lafaye}5_{, B. Laforge}78_{, T. Lagouri}176_,

S. Lai48_{, E. Laisne}55_{, M. Lamanna}30_{, L. Lambourne}77_{, C.L. Lampen}7_{, W. Lampl}7_{, E. Lancon}136_{, U. Landgraf}48_,

M.P.J. Landon75_{, V.S. Lang}58a_{, C. Lange}42_{, A.J. Lankford}163_{, F. Lanni}25_{, K. Lantzsch}175_{, S. Laplace}78_,

C. Lapoire21_{, J.F. Laporte}136_{, T. Lari}89a_{, A. Larner}118_{, M. Lassnig}30_{, P. Laurelli}47_{, V. Lavorini}37a,37b_,

W. Lavrijsen15, P. Laycock73, O. Le Dortz78, E. Le Guirriec83, E. Le Menedeu12, T. LeCompte6,

F. Ledroit-Guillon55, H. Lee105, J.S.H. Lee116, S.C. Lee151, L. Lee176, M. Lefebvre169, M. Legendre136, F. Legger98, C. Leggett15, M. Lehmacher21, G. Lehmann Miotto30, M.A.L. Leite24d, R. Leitner126, D. Lellouch172, B. Lemmer54, V. Lendermann58a, K.J.C. Leney145b, T. Lenz105, G. Lenzen175, B. Lenzi30, K. Leonhardt44, S. Leontsinis10, F. Lepold58a_{, C. Leroy}93_{, J-R. Lessard}169_{, C.G. Lester}28_{, C.M. Lester}120_{, J. Levˆeque}5_{, D. Levin}87_{, L.J. Levinson}172_,

A. Lewis118_{, G.H. Lewis}108_{, A.M. Leyko}21_{, M. Leyton}16_{, B. Li}83_{, H. Li}148_{, H.L. Li}31_{, S. Li}33b,t_{, X. Li}87_,

Z. Liang118,u_{, H. Liao}34_{, B. Liberti}133a_{, P. Lichard}30_{, M. Lichtnecker}98_{, K. Lie}165_{, W. Liebig}14_{, C. Limbach}21_,

A. Limosani86_{, M. Limper}62_{, S.C. Lin}151,v_{, F. Linde}105_{, J.T. Linnemann}88_{, E. Lipeles}120_{, A. Lipniacka}14_,

T.M. Liss165_{, D. Lissauer}25_{, A. Lister}49_{, A.M. Litke}137_{, C. Liu}29_{, D. Liu}151_{, H. Liu}87_{, J.B. Liu}87_{, L. Liu}87_,

M. Liu33b_{, Y. Liu}33b_{, M. Livan}119a,119b_{, S.S.A. Livermore}118_{, A. Lleres}55_{, J. Llorente Merino}80_{, S.L. Lloyd}75_,

E. Lobodzinska42_{, P. Loch}7_{, W.S. Lockman}137_{, T. Loddenkoetter}21_{, F.K. Loebinger}82_{, A. Loginov}176_{, C.W. Loh}168_,

T. Lohse16_{, K. Lohwasser}48_{, M. Lokajicek}125_{, V.P. Lombardo}5_{, R.E. Long}71_{, L. Lopes}124a_{, D. Lopez Mateos}57_,

J. Lorenz98_{, N. Lorenzo Martinez}115_{, M. Losada}162_{, P. Loscutoff}15_{, F. Lo Sterzo}132a,132b_{, M.J. Losty}159a,∗_{, X. Lou}41_,

A. Lucotte55, A. Ludwig44, D. Ludwig42, I. Ludwig48, J. Ludwig48, F. Luehring60, G. Luijckx105, W. Lukas61, L. Luminari132a, E. Lund117, B. Lund-Jensen147, B. Lundberg79, J. Lundberg146a,146b, O. Lundberg146a,146b, J. Lundquist36_{, M. Lungwitz}81_{, D. Lynn}25_{, E. Lytken}79_{, H. Ma}25_{, L.L. Ma}173_{, G. Maccarrone}47_{, A. Macchiolo}99_,

B. Maˇcek74_{, J. Machado Miguens}124a_{, R. Mackeprang}36_{, R.J. Madaras}15_{, H.J. Maddocks}71_{, W.F. Mader}44_,

R. Maenner58c_{, T. Maeno}25_{, P. M¨attig}175_{, S. M¨attig}81_{, L. Magnoni}163_{, E. Magradze}54_{, K. Mahboubi}48_,

J. Mahlstedt105_{, S. Mahmoud}73_{, G. Mahout}18_{, C. Maiani}136_{, C. Maidantchik}24a_{, A. Maio}124a,b_{, S. Majewski}25_,

Y. Makida65_{, N. Makovec}115_{, P. Mal}136_{, B. Malaescu}30_{, Pa. Malecki}39_{, P. Malecki}39_{, V.P. Maleev}121_{, F. Malek}55_,

U. Mallik62_{, D. Malon}6_{, C. Malone}143_{, S. Maltezos}10_{, V. Malyshev}107_{, S. Malyukov}30_{, R. Mameghani}98_,

J. Mamuzic13b_{, A. Manabe}65_{, L. Mandelli}89a_{, I. Mandi´c}74_{, R. Mandrysch}16_{, J. Maneira}124a_{, A. Manfredini}99_,

P.S. Mangeard88_{, L. Manhaes de Andrade Filho}24b_{, J.A. Manjarres Ramos}136_{, A. Mann}54_{, P.M. Manning}137_,

A. Manousakis-Katsikakis9_{, B. Mansoulie}136_{, A. Mapelli}30_{, L. Mapelli}30_{, L. March}167_{, J.F. Marchand}29_,

F. Marchese133a,133b_{, G. Marchiori}78_{, M. Marcisovsky}125_{, C.P. Marino}169_{, F. Marroquim}24a_{, Z. Marshall}30_,

F.K. Martens158, L.F. Marti17, S. Marti-Garcia167, B. Martin30, B. Martin88, J.P. Martin93, T.A. Martin18, V.J. Martin46, B. Martin dit Latour49, S. Martin-Haugh149, M. Martinez12, V. Martinez Outschoorn57,

A.C. Martyniuk169, M. Marx82, F. Marzano132a, A. Marzin111, L. Masetti81, T. Mashimo155, R. Mashinistov94, J. Masik82, A.L. Maslennikov107, I. Massa20a,20b, G. Massaro105, N. Massol5, P. Mastrandrea148,

A. Mastroberardino37a,37b, T. Masubuchi155, P. Matricon115, H. Matsunaga155, T. Matsushita66, C. Mattravers118,c, J. Maurer83_{, S.J. Maxfield}73_{, A. Mayne}139_{, R. Mazini}151_{, M. Mazur}21_{, L. Mazzaferro}133a,133b_{, M. Mazzanti}89a_,

J. Mc Donald85_{, S.P. Mc Kee}87_{, A. McCarn}165_{, R.L. McCarthy}148_{, T.G. McCarthy}29_{, N.A. McCubbin}129_,

K.W. McFarlane56,∗_{, J.A. Mcfayden}139_{, G. Mchedlidze}51b_{, T. Mclaughlan}18_{, S.J. McMahon}129_,

R.A. McPherson169,k_{, A. Meade}84_{, J. Mechnich}105_{, M. Mechtel}175_{, M. Medinnis}42_{, R. Meera-Lebbai}111_,

T. Meguro116_{, R. Mehdiyev}93_{, S. Mehlhase}36_{, A. Mehta}73_{, K. Meier}58a_{, B. Meirose}79_{, C. Melachrinos}31_,

B.R. Mellado Garcia173_{, F. Meloni}89a,89b_{, L. Mendoza Navas}162_{, Z. Meng}151,w_{, A. Mengarelli}20a,20b_{, S. Menke}99_,

E. Meoni161_{, K.M. Mercurio}57_{, P. Mermod}49_{, L. Merola}102a,102b_{, C. Meroni}89a_{, F.S. Merritt}31_{, H. Merritt}109_,

A. Messina30,x_{, J. Metcalfe}25_{, A.S. Mete}163_{, C. Meyer}81_{, C. Meyer}31_{, J-P. Meyer}136_{, J. Meyer}174_{, J. Meyer}54_,

T.C. Meyer30_{, S. Michal}30_{, L. Micu}26a_{, R.P. Middleton}129_{, S. Migas}73_{, L. Mijovi´c}136_{, G. Mikenberg}172_,

M. Mikestikova125_{, M. Mikuˇz}74_{, D.W. Miller}31_{, R.J. Miller}88_{, W.J. Mills}168_{, C. Mills}57_{, A. Milov}172_,

D.A. Milstead146a,146b, D. Milstein172, A.A. Minaenko128, M. Mi˜nano Moya167, I.A. Minashvili64, A.I. Mincer108, B. Mindur38, M. Mineev64, Y. Ming173, L.M. Mir12, G. Mirabelli132a, J. Mitrevski137, V.A. Mitsou167, S. Mitsui65, P.S. Miyagawa139, J.U. Mj¨ornmark79, T. Moa146a,146b, V. Moeller28, K. M¨onig42, N. M¨oser21, S. Mohapatra148, W. Mohr48, R. Moles-Valls167, A. Molfetas30, J. Monk77, E. Monnier83, J. Montejo Berlingen12, F. Monticelli70, S. Monzani20a,20b_{, R.W. Moore}3_{, G.F. Moorhead}86_{, C. Mora Herrera}49_{, A. Moraes}53_{, N. Morange}136_{, J. Morel}54_,

G. Morello37a,37b_{, D. Moreno}81_{, M. Moreno Ll´acer}167_{, P. Morettini}50a_{, M. Morgenstern}44_{, M. Morii}57_,

A.K. Morley30_{, G. Mornacchi}30_{, J.D. Morris}75_{, L. Morvaj}101_{, H.G. Moser}99_{, M. Mosidze}51b_{, J. Moss}109_,

R. Mount143_{, E. Mountricha}10,y_{, S.V. Mouraviev}94,∗_{, E.J.W. Moyse}84_{, F. Mueller}58a_{, J. Mueller}123_{, K. Mueller}21_,

T.A. M¨uller98_{, T. Mueller}81_{, D. Muenstermann}30_{, Y. Munwes}153_{, W.J. Murray}129_{, I. Mussche}105_{, E. Musto}102a,102b_,

A.G. Myagkov128_{, M. Myska}125_{, O. Nackenhorst}54_{, J. Nadal}12_{, K. Nagai}160_{, R. Nagai}157_{, K. Nagano}65_,

A. Nagarkar109_{, Y. Nagasaka}59_{, M. Nagel}99_{, A.M. Nairz}30_{, Y. Nakahama}30_{, K. Nakamura}155_{, T. Nakamura}155_,

I. Nakano110_{, G. Nanava}21_{, A. Napier}161_{, R. Narayan}58b_{, M. Nash}77,c_{, T. Nattermann}21_{, T. Naumann}42_,

G. Navarro162_{, H.A. Neal}87_{, P.Yu. Nechaeva}94_{, T.J. Neep}82_{, A. Negri}119a,119b_{, G. Negri}30_{, M. Negrini}20a_,

S. Nektarijevic49_{, A. Nelson}163_{, T.K. Nelson}143_{, S. Nemecek}125_{, P. Nemethy}108_{, A.A. Nepomuceno}24a_{, M. Nessi}30,z_,

M.S. Neubauer165_{, M. Neumann}175_{, A. Neusiedl}81_{, R.M. Neves}108_{, P. Nevski}25_{, F.M. Newcomer}120_{, P.R. Newman}18_,

V. Nguyen Thi Hong136, R.B. Nickerson118, R. Nicolaidou136, B. Nicquevert30, F. Niedercorn115, J. Nielsen137, N. Nikiforou35, A. Nikiforov16, V. Nikolaenko128, I. Nikolic-Audit78, K. Nikolics49, K. Nikolopoulos18, H. Nilsen48, P. Nilsson8, Y. Ninomiya155, A. Nisati132a, R. Nisius99, T. Nobe157, L. Nodulman6, M. Nomachi116, I. Nomidis154, S. Norberg111, M. Nordberg30, P.R. Norton129, J. Novakova126, M. Nozaki65, L. Nozka113, I.M. Nugent159a, A.-E. Nuncio-Quiroz21_{, G. Nunes Hanninger}86_{, T. Nunnemann}98_{, E. Nurse}77_{, B.J. O’Brien}46_{, D.C. O’Neil}142_,

V. O’Shea53_{, L.B. Oakes}98_{, F.G. Oakham}29,d_{, H. Oberlack}99_{, J. Ocariz}78_{, A. Ochi}66_{, S. Oda}69_{, S. Odaka}65_,

J. Odier83_{, H. Ogren}60_{, A. Oh}82_{, S.H. Oh}45_{, C.C. Ohm}30_{, T. Ohshima}101_{, W. Okamura}116_{, H. Okawa}25_,

Y. Okumura31_{, T. Okuyama}155_{, A. Olariu}26a_{, A.G. Olchevski}64_{, S.A. Olivares Pino}32a_{, M. Oliveira}124a,h_,

D. Oliveira Damazio25_{, E. Oliver Garcia}167_{, D. Olivito}120_{, A. Olszewski}39_{, J. Olszowska}39_{, J. Onderwaater}172_,

A. Onofre124a,aa_{, P.U.E. Onyisi}31_{, C.J. Oram}159a_{, M.J. Oreglia}31_{, Y. Oren}153_{, D. Orestano}134a,134b_,

N. Orlando72a,72b_{, I. Orlov}107_{, C. Oropeza Barrera}53_{, R.S. Orr}158_{, B. Osculati}50a,50b_{, R. Ospanov}120_{, C. Osuna}12_,

G. Otero y Garzon27_{, J.P. Ottersbach}105_{, M. Ouchrif}135d_{, E.A. Ouellette}169_{, F. Ould-Saada}117_{, A. Ouraou}136_,

Q. Ouyang33a_{, A. Ovcharova}15_{, M. Owen}82_{, S. Owen}139_{, V.E. Ozcan}19a_{, N. Ozturk}8_{, A. Pacheco Pages}12_,