Measurement of D-meson production versus multiplicity in p-Pb collisions at √sNN = 5.02 TeV
Journal article
Authors | ALICE Collaboration and Barnby, Lee |
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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. 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 |
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 normalised 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. | |
Keywords | Large Hadron Collider; Relativistic heavy ion collisions; Quark gluon plasma; Heavy flavour production |
Year | 2016 |
Journal | Journal of High Energy Physics |
Publisher | Springer Berlin Heidelberg |
ISSN | 1029-8479 |
Digital Object Identifier (DOI) | https://doi.org/10.1007/JHEP08(2016)078 |
Web address (URL) | http://hdl.handle.net/10545/621051 |
hdl:10545/621051 | |
Publication dates | 11 Aug 2016 |
Publication process dates | |
Deposited | 23 Nov 2016, 15:34 |
Rights | Archived with thanks to Journal of High Energy Physics |
Contributors | University of Birmingham |
File | File Access Level Open |
https://repository.derby.ac.uk/item/93w59/measurement-of-d-meson-production-versus-multiplicity-in-p-pb-collisions-at-snn-5-02-tev
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