Measurement of the production and lepton charge asymmetry of [Formula: see text] bosons in Pb+Pb collisions at [Formula: see text] with the ATLAS detector.
Eur Phys J C Part Fields
; 75(1): 23, 2015.
Article
em En
| MEDLINE
| ID: mdl-25983646
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.
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MEDLINE
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En
Ano de publicação:
2015
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Article