Naslov
W and Z boson production in p-Pb collisions at TeV root s(NN)=5.02 TeV

Autori
Adam, J. ; ... ; Gotovac, Sven ; ... ; Vicković, Linda ; ... : Zmeskal, J.

Kolaboracija
ALICE Collaboration

Izvornik
The Journal of high energy physics (1126-6708) 2 (2017); 77, 29

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Havy Ion Experiments ; Cross-sectioms ; P(P)overbar-Bar collisions ; parton distributions ; collider ; LHC
(Heavy Ion Experiments ; Cross-sectioms ; P(P)overbar-Bar collisions ; parton distributions ; collider ; LHC)

Sažetak
The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at root s(NN) = 5.02 TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (4.46 < y(cms) < 2.96) and forward (2.03 < y(cms) < 3.53) rapidity regions, corresponding to Pb-going and p-going directions, respectively. The Z-boson production cross section, with dimuon invariant mass of 60 < m(mu mu) < 120 GeV/c(2) and muon transverse momentum (p(T)(mu)) larger than 20 GeV/c, is measured. The production cross section and charge asymmetry of muons from W- boson decays with p(T)(mu) > 10 GeV/c are determined. The results are compared to theoretical calculations both with and without including the nuclear modification of the parton distribution functions. The W-boson production is also studied as a function of the collision centrality: the cross section of muons from W-boson decays is found to scale with the average number of binary nucleon- nucleon collisions within uncertainties.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
ADS ; Atomindex ; CNKI ; DOAJ ; EBSCO ; Gale ; Google Scholar ; INIS ; INSPIRE ; Journal Citation Reports/Science Edition ; Mathematical Reviews ; OCLC, ProQuest ; Referativnyi Zhurnal ; Zentralblatt Math

POVEZANOST RADA