Elsevier

Physics Letters B

Volume 759, 10 August 2016, Pages 601-621
Physics Letters B

Measurement of W± and Z-boson production cross sections in pp collisions at s=13 TeV with the ATLAS detector

https://doi.org/10.1016/j.physletb.2016.06.023Get rights and content
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Abstract

Measurements of the W±±ν and Z+ production cross sections (where ±=e±,μ±) in proton–proton collisions at s=13 TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb−1. The total inclusive W±-boson production cross sections times the single-lepton-flavour branching ratios are σW+tot=11.83±0.02(stat)±0.32(sys)±0.25(lumi) nb and σWtot=8.79±0.02(stat)±0.24(sys)±0.18(lumi) nb for W+ and W, respectively. The total inclusive Z-boson production cross section times leptonic branching ratio, within the invariant mass window 66<m<116 GeV, is σZtot=1.981±0.007(stat)±0.038(sys)±0.042(lumi) nb. The W+, W, and Z-boson production cross sections and cross-section ratios within a fiducial region defined by the detector acceptance are also measured. The cross-section ratios benefit from significant cancellation of experimental uncertainties, resulting in σW+fid/σWfid=1.295±0.003(stat)±0.010(sys) and σW±fid/σZfid=10.31±0.04(stat)±0.20(sys). Theoretical predictions, based on calculations accurate to next-to-next-to-leading order for quantum chromodynamics and to next-to-leading order for electroweak processes and which employ different parton distribution function sets, are compared to these measurements.

Cited by (0)

ar

Also affiliated with PKU-CHEP.

a

Also at Department of Physics, King's College London, London, United Kingdom.

b

Also at Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.

c

Also at Novosibirsk State University, Novosibirsk, Russia.

d

Also at TRIUMF, Vancouver BC, Canada.

e

Also at Department of Physics & Astronomy, University of Louisville, Louisville, KY, United States.

f

Also at Department of Physics, California State University, Fresno, CA, United States.

g

Also at Department of Physics, University of Fribourg, Fribourg, Switzerland.

h

Also at Departament de Fisica de la Universitat Autonoma de Barcelona, Barcelona, Spain.

i

Also at Departamento de Fisica e Astronomia, Faculdade de Ciencias, Universidade do Porto, Portugal.

j

Also at Tomsk State University, Tomsk, Russia.

k

Also at Universita di Napoli Parthenope, Napoli, Italy.

l

Also at Institute of Particle Physics (IPP), Canada.

m

Also at National Institute of Physics and Nuclear Engineering, Bucharest, Romania.

n

Also at Department of Physics, St. Petersburg State Polytechnical University, St. Petersburg, Russia.

o

Also at Department of Physics, The University of Michigan, Ann Arbor, MI, United States.

p

Also at Louisiana Tech University, Ruston, LA, United States.

q

Also at Institucio Catalana de Recerca i Estudis Avancats, ICREA, Barcelona, Spain.

r

Also at Graduate School of Science, Osaka University, Osaka, Japan.

s

Also at Department of Physics, National Tsing Hua University, Taiwan.

t

Also at Department of Physics, The University of Texas at Austin, Austin, TX, United States.

u

Also at Institute of Theoretical Physics, Ilia State University, Tbilisi, Georgia.

v

Also at CERN, Geneva, Switzerland.

w

Also at Georgian Technical University (GTU), Tbilisi, Georgia.

x

Also at Ochadai Academic Production, Ochanomizu University, Tokyo, Japan.

y

Also at Manhattan College, New York, NY, United States.

z

Also at Hellenic Open University, Patras, Greece.

aa

Also at Academia Sinica Grid Computing, Institute of Physics, Academia Sinica, Taipei, Taiwan.

ab

Also at School of Physics, Shandong University, Shandong, China.

ac

Also at Moscow Institute of Physics and Technology State University, Dolgoprudny, Russia.

ad

Also at Section de Physique, Université de Genève, Geneva, Switzerland.

ae

Also at Eotvos Lorand University, Budapest, Hungary.

af

Also at International School for Advanced Studies (SISSA), Trieste, Italy.

ag

Also at Department of Physics and Astronomy, University of South Carolina, Columbia, SC, United States.

ah

Also at School of Physics and Engineering, Sun Yat-sen University, Guangzhou, China.

ai

Also at Institute for Nuclear Research and Nuclear Energy (INRNE) of the Bulgarian Academy of Sciences, Sofia, Bulgaria.

aj

Also at Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow, Russia.

ak

Also at Institute of Physics, Academia Sinica, Taipei, Taiwan.

al

Also at National Research Nuclear University MEPhI, Moscow, Russia.

am

Also at Department of Physics, Stanford University, Stanford, CA, United States.

an

Also at Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Budapest, Hungary.

ao

Also at Flensburg University of Applied Sciences, Flensburg, Germany.

ap

Also at University of Malaya, Department of Physics, Kuala Lumpur, Malaysia.

aq

Also at CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.

Deceased.

E-mail address: [email protected].