D-Meson Azimuthal Anisotropy in Midcentral Pb-Pb Collisions root S-NN=5.02 TeV

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http://hdl.handle.net/10138/298516

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The ALICE Collaboration , Acharya , S , Brucken , E J , Chang , B , Kim , D J , Litichevskyi , V , Mieskolainen , M M , Orava , R , Rak , J , Räsänen , S S , Saarinen , S , Slupecki , M , Snellman , T W , Trzaska , W H , Vargyas , M & Viinikainen , J 2018 , ' D-Meson Azimuthal Anisotropy in Midcentral Pb-Pb Collisions root S-NN=5.02 TeV ' , Physical Review Letters , vol. 120 , no. 10 , 102301 . https://doi.org/10.1103/PhysRevLett.120.102301

Title: D-Meson Azimuthal Anisotropy in Midcentral Pb-Pb Collisions root S-NN=5.02 TeV
Author: The ALICE collaboration; Acharya, S.; Brucken, E.J.; Chang, B.; Kim, D.J.; Litichevskyi, V.; Mieskolainen, M. M.; Orava, R.; Rak, J.; Räsänen, S.S.; Saarinen, S.; Slupecki, M.; Snellman, T.W.; Trzaska, W.H.; Vargyas, M.; Viinikainen, J.
Contributor organization: Helsinki Institute of Physics
Date: 2018-03-09
Language: eng
Number of pages: 13
Belongs to series: Physical Review Letters
ISSN: 0031-9007
DOI: https://doi.org/10.1103/PhysRevLett.120.102301
URI: http://hdl.handle.net/10138/298516
Abstract: The azimuthal anisotropy coefficient v(2) of prompt D-0, D+, D*+, and D-s(+) mesons was measured in midcentral (30%-50% centrality class) Pb-Pb collisions at a center-of-mass energy per nucleon pair root s(NN)=5.02 TeV, with the ALICE detector at the LHC. The D mesons were reconstructed via their hadronic decays at midrapidity, |y| < 0.8, in the transverse momentum interval 1 < p(T) < 24 GeV/c. The measured D-meson v(2) has similar values as that of charged pions. The D-s(+) v(2), measured for the first time, is found to be compatible with that of nonstrange D mesons. The measurements are compared with theoretical calculations of charm-quark transport in a hydrodynamically expanding medium and have the potential to constrain medium parameters.
Subject: 114 Physical sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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