@article{07738b6a1f864cbdbe4a65f83cb38905,
title = "Measurement of the production and lepton charge asymmetry of W bosons in Pb+Pb collisions at √sNN = 2.76 TeV with the ATLAS detector",
abstract = "A measurement of W boson production in lead-lead collisions at √sNN = 2.76 TeV is presented. It is based on the analysis of data collected with the ATLAS detector at the LHC in 2011 corresponding to an integrated luminosity of 0.14 nb-1 and 0.15 nb-1 in the muon and electron decay channels, respectively. The differential production yields and lepton charge asymmetry are each measured as a function of the average number of participating nucleons ‹Npart› and absolute pseudorapidity of the charged lepton. The results are compared to predictions based on next-to-leading-order QCD calculations. These measurements are, in principle, sensitive to possible nuclear modifications to the parton distribution functions and also provide information on scaling of W boson production in multi-nucleon systems.",
author = "{Atlas Collaboration} and G. Aad and B. Abbott and J. Abdallah and {Abdel Khalek}, S. and O. Abdinov and R. Aben and B. Abi and M. Abolins and AbouZeid, {O. S.} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, {B. S.} and L. Adamczyk and Adams, {D. L.} and J. Adelman and S. Adomeit and T. Adye and T. Agatonovic-Jovin and Aguilar-Saavedra, {J. A.} and M. Agustoni and Ahlen, {S. P.} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, {T. P.A.} and G. Akimoto and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and S. Albrand and {Alconada Verzini}, {M. J.} and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and G. Alimonti and L. Alio and J. Alison and Allbrooke, {B. M.M.} and Allison, {L. J.} and Allport, {P. P.} and J. Almond and A. Aloisio and A. Alonso and Rudolph, {M. S.}",
note = "Funding Information: The corrected yields from each channel are consistent. Moreover, the contributions from nn and pn collisions are evident. Proton-proton collisions alone would result in a ratio of and bosons significantly above unity, but in collisions, the larger number of valence quarks in the neutron increases production, driving the ratio closer to one. This is supported by Fig. , which presents the fiducial charge ratio as a function of for the combined muon and electron channels. Publisher Copyright: {\textcopyright} 2015, CERN for the benefit of the ATLAS collaboration.",
year = "2015",
doi = "10.1140/epjc/s10052-014-3231-6",
language = "English (US)",
volume = "75",
pages = "1--30",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer New York",
number = "1",
}