Z Boson Production in p+Pb Collisions Measured by the ATLAS Experiment

20 May 2014, 16:30
spectrum (darmstadtium)



Board: G-09
Poster Electromagnetic Probes Poster session


Zvi Citron (Weizmann Institute of Science (IL))


The measurement of Z bosons in heavy ion collisions is an excellent tool for probing the nucleus at the partonic level. The inclusive yield provides a stringent test of binary collision scaling. Recent ATLAS results demonstrate such scaling in Pb+Pb collisions. The 2013 p+Pb physics run at the LHC providing more than 30 nb^-1 of collisions at an energy of sqrt(s_NN)=5.02 TeV has made a detailed study of Z boson production in proton+nucleus interactions possible for the first time. These data may confirm binary scaling in the p-Pb system and help clarify the present ambiguity of centrality classifications in proton+nucleus collisions. Further, the momentum and rapidity differential yields of Z bosons allow the detection of any modification of the initial state present in such collisions. The ATLAS experiment allows the analysis of Z boson production via the di-electron and di-muon channels over a wide acceptance in rapidity. We will present the Z boson yield measured by the ATLAS experiment in p+Pb collisions at the LHC.
On behalf of collaboration: ATLAS

Primary author

Zvi Citron (Weizmann Institute of Science (IL))

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