Measurement of D-meson production versus multiplicity in p-Pb collisions at √sNN=5.02 TeV



Adam, J, Adamova, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A
et al (show 985 more authors) (2016) Measurement of D-meson production versus multiplicity in p-Pb collisions at √sNN=5.02 TeV JOURNAL OF HIGH ENERGY PHYSICS, 2016 (8). 78-. ISSN 1029-8479, 1029-8479

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Abstract

The measurement of prompt D-meson production as a function of multiplicity in p-Pb collisions at sNN=5.02 TeV with the ALICE detector at the LHC is reported. D<sup>0</sup>, D<sup>+</sup> and D<sup>∗+</sup> mesons are reconstructed via their hadronic decay channels in the centre-of-mass rapidity range −0.96 < y<inf>cms</inf>< 0.04 and transverse momentum interval 1<p<inf>T</inf><24 GeV/c. The multiplicity dependence of D-meson production is examined by either comparing yields in p-Pb collisions in different event classes, selected based on the multiplicity of produced particles or zero-degree energy, with those in pp collisions, scaled by the number of binary nucleon-nucleon collisions (nuclear modification factor); as well as by evaluating the per-event yields in p-Pb collisions in different multiplicity intervals normalised to the multiplicity-integrated ones (relative yields). The nuclear modification factors for D<sup>0</sup>, D<sup>+</sup> and D<sup>∗+</sup> are consistent with one another. The D-meson nuclear modification factors as a function of the zero-degree energy are consistent with unity within uncertainties in the measured p<inf>T</inf> regions and event classes. The relative D-meson yields, calculated in various p<inf>T</inf> intervals, increase as a function of the charged-particle multiplicity. The results are compared with the equivalent pp measurements at s=7 TeV as well as with EPOS 3 calculations.[Figure not available: see fulltext.]

Item Type: Article
Uncontrolled Keywords: Heavy Ion Experiments, Heavy-ion collision, Quark gluon plasma
Depositing User: Symplectic Admin
Date Deposited: 08 Nov 2016 11:12
Last Modified: 24 Jun 2026 14:08
DOI: 10.1007/JHEP08(2016)078
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3004422
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