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Title: Event-Shape Engineering for the D-meson elliptic flow in mid-central Pb-Pb collisions at $$\sqrt{s_{\mathrm{NN}}}=5.02$$ TeV

Journal Article · · Journal of High Energy Physics (Online)
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The production yield of prompt D mesons and their elliptic flow coefficient $$\nu$$2 were measured with the Event-Shape Engineering (ESE) technique applied to mid-central (10–30% and 30–50% centrality classes) Pb-Pb collisions at the centre-of-mass energy per nucleon pair $$\sqrt{s_{\mathrm{NN}}}=5.02$$ TeV, with the ALICE detector at the LHC. The ESE technique allows the classification of events, belonging to the same centrality, according to the azimuthal anisotropy of soft particle production in the collision. The reported measurements give the opportunity to investigate the dynamics of charm quarks in the Quark-Gluon Plasma and provide information on their participation in the collective expansion of the medium. D mesons were reconstructed via their hadronic decays at mid-rapidity, |η| < 0.8, in the transverse momentum interval 1 < pT < 24 GeV/c. The $$\nu$$2 coefficient is found to be sensitive to the event-shape selection confirming a correlation between the D-meson azimuthal anisotropy and the collective expansion of the bulk matter, while the per-event D-meson yields do not show any significant modification within the current uncertainties.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Organization:
The ALICE collaboration
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1550867
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 2 Vol. 2019; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (1)

Measurement of ϒ ( 1 S ) Elliptic Flow at Forward Rapidity in Pb-Pb Collisions at s N N = 5.02     TeV journal November 2019