D mesons in non-central heavy-ion collisions: Fluctuating vs. averaged initial conditions

作者：Nahrgang Marlene^*; Aichelin Joerg; Gossiaux Pol Bernard; Werner Klaus

来源：Nuclear Physics A, 2014, 932: 555-561.

DOI：10.1016/j.nuclphysa.2014.07.017

• Heavy-quark energy loss
• Quark-gluon plasma

The suppression of D mesons in non-central heavy-ion collisions is investigated. The anisotropy in collisions at finite impact parameter leads to an ordering of all-angle, in- and out-of-plane nuclear modification factors due to the different in-medium path lengths. Within our MC@sHQ+EPOS model of heavy-quark propagation in the QGP we demonstrate that fluctuating initial conditions lead to an effective reduction of the energy loss of heavy quarks, which is seen in a larger nuclear modification factor at intermediate and high transverse momenta. The elliptic flow at small transverse momenta is reduced.

• 出版日期2014-12