nPDF studies with electroweak bosons in pPb at 8.16 TeV with the CMS experiment
H. Kim* on behalf of the CMS collaboration
*corresponding author
Full text: pdf
Pre-published on: 2019 January 15
Published on:
Abstract
Yields of electroweak gauge bosons can be used to probe the nuclear parton distribution functions of quarks and antiquarks. Final results on W boson 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. 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.
Open Access