The azimuthal anisotropy coefficient v2 of prompt D0, D+, D∗+, and Ds+ mesons was measured in midcentral (30%-50% centrality class) Pb-Pb collisions at a center-of-mass energy per nucleon pair sNN=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<pT<24 GeV/c. The measured D-meson v2 has similar values as that of charged pions. The Ds+ v2, 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.

D-meson azimuthal anisotropy in midcentral Pb-Pb collisions at s NN=5.02 TeV

Casula, E. A. R.;Cicalo, C.;De Falco, A.;Fionda, F. M.;Siddhanta, S.;Usai, G. L.;
2018-01-01

Abstract

The azimuthal anisotropy coefficient v2 of prompt D0, D+, D∗+, and Ds+ mesons was measured in midcentral (30%-50% centrality class) Pb-Pb collisions at a center-of-mass energy per nucleon pair sNN=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
2018
Heavy-ion collisions; Relativistic nuclear collisions; Energy-loss; Quarkonium production; Eliptic flow; Flavor; Matter; Charm; LHC; Coalescence
File in questo prodotto:
File Dimensione Formato  
PhysRevLett.120.102301.pdf

accesso aperto

Tipologia: versione editoriale
Dimensione 421.25 kB
Formato Adobe PDF
421.25 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/247282
Citazioni
  • ???jsp.display-item.citation.pmc??? 0
  • Scopus 92
  • ???jsp.display-item.citation.isi??? 66
social impact