Measurement of D-meson production versus multiplicity in p-Pb collisions at root s(NN)=5.02 TeV

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Adam , J , Brucken , E J , Chang , B , Kim , D J , Mieskolainen , M M , Orava , R , Rak , J , Räsänen , S S , Snellman , T W , Trzaska , W H & The ALICE Collaboration 2016 , ' Measurement of D-meson production versus multiplicity in p-Pb collisions at root s(NN)=5.02 TeV ' , Journal of High Energy Physics , vol. 2016 , no. 08 , 078 . https://doi.org/10.1007/JHEP08(2016)078

Title: Measurement of D-meson production versus multiplicity in p-Pb collisions at root s(NN)=5.02 TeV
Author: Adam, J.; Brucken, E. J.; Chang, B.; Kim, D. J.; Mieskolainen, M. M.; Orava, R.; Rak, J.; Räsänen, S. S.; Snellman, T. W.; Trzaska, W. H.; The ALICE collaboration
Contributor organization: Helsinki Institute of Physics
Date: 2016-08-11
Language: eng
Number of pages: 44
Belongs to series: Journal of High Energy Physics
ISSN: 1029-8479
DOI: https://doi.org/10.1007/JHEP08(2016)078
URI: http://hdl.handle.net/10138/167009
Abstract: The measurement of prompt D-meson production as a function of multiplicity in p-Pb collisions at TeV with the ALICE detector at root s(NN) the LHC is reported. D-0, D+ and Dau+ mesons are reconstructed via their hadronic decay channels in the centre-of-mass rapidity range -0.96 <y(cms) <0.04 and transverse momentum interval 1 <p(T) <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-0, 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 p(T) regions and event classes. The relative D-meson yields, calculated in various p(T) intervals, increase as a function of the charged-particle multiplicity. The results are compared with the equivalent pp measurements at root s = 7 TeV as well as with EPOS 3 calculations.
Subject: Heavy Ion Experiments
Heavy-ion collision
Quark gluon plasma
RANGE ANGULAR-CORRELATIONS
PROTON-PROTON COLLISIONS
ROOT-S=7 TEV
LONG-RANGE
CGC PREDICTIONS
LHC
MODEL
SIDE
PLUS
114 Physical sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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