The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at √sNN=5.02 TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (-4.46 < ycms< -2.96) and forward (2.03 < ycms< 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 < mμμ < 120 GeV/c2 and muon transverse momentum (pT) larger than 20 GeV/c, is measured. The production cross section and charge asymmetry of muons from W-boson decays with pT > 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.

Adam, J., Adamovã¡, D., Aggarwal, M.M., Aglieri Rinella, G., Agnello, M., Agrawal, N., et al. (2017). W and Z boson production in p-Pb collisions at √sNN=5.02 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2017(2), 1-26 [10.1007/JHEP02(2017)077].

W and Z boson production in p-Pb collisions at √sNN=5.02 TeV

Alici, A.;Arcelli, S.;Basile, M.;Bellini, F.;Carnesecchi, F.;Cifarelli, L.;Colocci, M.;Guerzoni, B.;Jacazio, N.;Scioli, G.;
2017

Abstract

The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at √sNN=5.02 TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (-4.46 < ycms< -2.96) and forward (2.03 < ycms< 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 < mμμ < 120 GeV/c2 and muon transverse momentum (pT) larger than 20 GeV/c, is measured. The production cross section and charge asymmetry of muons from W-boson decays with pT > 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.
2017
Adam, J., Adamovã¡, D., Aggarwal, M.M., Aglieri Rinella, G., Agnello, M., Agrawal, N., et al. (2017). W and Z boson production in p-Pb collisions at √sNN=5.02 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2017(2), 1-26 [10.1007/JHEP02(2017)077].
Adam, J.; Adamovã¡, D.; Aggarwal, M. M.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; Aiola, S.; Akindinov, A.; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/617847
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