Measurement of the production and lepton charge asymmetry of W bosons in Pb plus Pb collisions at root s(NN)=2.76 TeV with the ATLAS detector

A. Do Valle Wemans, ATLAS Collaboration

Research output: Contribution to journalArticle

24 Citations (Scopus)

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.
Original languageEnglish
Article number23
Pages (from-to)1-30
JournalEuropean Physical Journal C: Particles and Fields
Volume75
Issue number1
DOIs
Publication statusPublished - 22 Jan 2015

Keywords

  • TRANSVERSE-MOMENTUM DEPENDENCE
  • LEAD-LEAD COLLISIONS
  • QUARK-GLUON PLASMA
  • MONTE-CARLO
  • QCD
  • COLLABORATION
  • PERSPECTIVE
  • SUPPRESSION
  • MATTER
  • MODEL

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