Event-shape engineering for the D-meson elliptic flow in mid-central Pb-Pb collisions at √sNN=5.02 TeV

Acharya, S. and Antičić, Tome and Erhardt, Filip and Gotovac, Sven and Jerčić, Marko and Lončar, Petra and Mudnić, Eugen and Planinić, Mirko and Poljak, Nikola and Simatović, Goran and Utrobičić, Antonija and Vicković, Linda and Mudnić, Eugen and Zinovjev, G. (ALICE Collaboration) (2019) Event-shape engineering for the D-meson elliptic flow in mid-central Pb-Pb collisions at √sNN=5.02 TeV. Journal of High Energy Physics, 2019 (2). pp. 150-30. ISSN 1029-8479

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution.
Language: English

Download (1MB) | Preview

Abstract

He production yield of prompt D mesons and their elliptic flow coefficient v2 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 √sNN=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 v2 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.

Item Type: Article
Keywords: heavy ion: scattering, quark gluon: plasma, nucleon: pair, angular distribution: anisotropy, elliptic flow, engineering, meson, transverse momentum, hadronic decay, CERN LHC Coll, collective, ALICE, charm, quark, hadron-hadron scattering (experiments), heavy-ion collision
Date: 2019
Number of Pages: 30
Subjects: NATURAL SCIENCES > Physics
Additional Information: Open Access, Copyright CERN, for the benefit of the ALICE Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.Received: October 8, 2018; Revised: January 25, 2019; Accepted: February 5, 2019; Published: February 22, 2019.
Divisions: Faculty of Science > Department of Physics
Publisher: Springer
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 28 Mar 2019 12:22
Last Modified: 28 Mar 2019 12:22
URI: http://digre.pmf.unizg.hr/id/eprint/5902

Actions (login required)

View Item View Item