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Article
Report number arXiv:1602.07240 ; CERN-EP-2016-034 ; CERN-EP-2016-034
Title Measurement of D-meson production versus multiplicity in p-Pb collisions at sNN=5.02 TeV
Author(s) ALICE Collaboration  ყველა 995 ავტორის ჩვენება
Publication 2016-08-11
Imprint 23 Feb 2016
Number of pages 39
Note 39 pages, 11 captioned figures, 8 tables (5 of them in Appendix A), authors from page 33, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/2359
In: JHEP 08 (2016) 078
DOI 10.1007/JHEP08(2016)078
Subject category Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ALICE
Free keywords relativistic heavy ion physics ; charm physics ; experimental results
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. D0, D+ and D+ mesons are reconstructed via their hadronic decay channels in the centre-of-mass rapidity range 0.96<ycms<0.04 and transverse momentum interval 1<pT<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 normalized to the multiplicity-integrated ones (relative yields). The nuclear modification factors for D0, D+ and D+ 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 pT regions and event classes. The relative D-meson yields, calculated in various pT 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.
Copyright/License preprint: © 2016-2024 CERN (License: CC-BY-4.0)
publication: © 2016-2024 CERN (License: CC-BY-4.0), sponsored by SCOAP³
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Corresponding record in: Inspire
Email contact: enrico.scomparin@cern.ch


 ჩანაწერი შექმნილია 2016-02-25, ბოლოს შესწორებულია 2024-11-27


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