Measurement of the production and lepton charge asymmetry of $W$ bosons in Pb+Pb collisions at $\\mathbf \\sqrt\\mathbf s_\\mathrm \\mathbf NN=2.76\\;TeV$ with the ATLAS detector
Journal
European Physical Journal
Journal Volume
C75
Journal Issue
1
Pages
23
Date Issued
2015
Author(s)
Abstract
A measurement of [Formula: see text] boson production in lead-lead collisions at [Formula: see text] 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 [Formula: see text] and 0.15 [Formula: see text] 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 [Formula: see text] 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 [Formula: see text] boson production in multi-nucleon systems.
Type
journal article