/ nucl-ex CMS-HIN-13-007

Study of W boson production in pPb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV

Pages: 29

Abstract: The first study of W boson production in pPb collisions is presented, for bosons decaying to a muon or electron, and a neutrino. The measurements are based on a data sample corresponding to an integrated luminosity of 34.6 inverse nanobarns at a nucleon-nucleon centre-of-mass energy of $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV, collected by the CMS experiment. The W boson differential cross sections, lepton charge asymmetry, and forward-backward asymmetries are measured for leptons of transverse momentum exceeding 25 GeV, and as a function of the lepton pseudorapidity in the abs(eta[lab]) < 2.4 range. Deviations from the expectations based on currently available parton distribution functions are observed, showing the need for including W boson data in nuclear parton distribution global fits.

Note: Submitted to Phys. Lett. B

Total numbers of views: 951
Numbers of unique views: 528
Запись создана 2015-04-01, последняя модификация 2015-04-01

Внешние ссылки:
Полный текст
Оценить этот документ:

1
2
3

(Еще не рецензированная)