May 13 – 19, 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

nPDF studies with electroweak bosons in pPb collisions at 8.16 TeV with the CMS detector

May 16, 2018, 11:30 AM
Sala Casinò, 1st Floor (Palazzo del Casinò)

Sala Casinò, 1st Floor

Palazzo del Casinò

Parallel Talk Electromagnetic and weak probes Electromagnetic and weak probes


Andre Govinda Stahl Leiton (Centre National de la Recherche Scientifique (FR))


Yields of W and Z bosons can be used to probe the nuclear parton distribution functions of quarks and antiquarks. New results on W boson and Drell-Yan production in pPb collisions at a nucleon-nucleon center-of-mass energy of 8.16 TeV using the CMS detector will be presented. The muon decay channel is used to study both positive and negative W bosons as a function of muon pseudorapidity. Rapidity and charge asymmetries in the W yield are studied. The Drell-Yan cross section is extracted as functions of the dimuon mass for the first time in pPb collisions, between 15 and 600 GeV, and both as a function of dimuon transverse momentum and rapidity, in the Z boson mass region. Comparisons to theory calculations show that these data are sensitive to the presence of nuclear modifications to the parton distributions in the lead nucleus, and can help improve and constrain theoretical calculations.

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Collaboration CMS
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