Measurement of the production and lepton charge asymmetry of W bosons in Pb+Pb collisions at √sNN=2.76TeV with the ATLAS detector

, The ATLAS collaboration (2015) Measurement of the production and lepton charge asymmetry of W bosons in Pb+Pb collisions at √sNN=2.76TeV with the ATLAS detector. European Physical Journal C: Particles and Fields, 75. ISSN 1434-6044

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Abstract

A measurement of W boson production in lead-lead collisions at root s(NN) = 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 < N-part > 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.

Item Type:
Journal Article
Journal or Publication Title:
European Physical Journal C: Particles and Fields
Additional Information:
The final publication is available at Springer via http://dx.doi.org/10.1140/epjc/s10052-014-3231-6
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2201
Subjects:
ID Code:
74032
Deposited By:
Deposited On:
18 Jun 2015 05:59
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Oct 2020 03:23