Abstract
The directed flow () of open charm meson () is studied in Au+Au collisions at GeV using a multiphase transport model framework with partonic interactions (string melting version). Within this framework, it is found that although the initial spatial eccentricity () of charm quark is smaller than light quarks, the charm quark magnitude is found to be approximately seven times larger than that of the light quark at large rapidity. This indicates that the charm quarks can retain more information from initial condition than the light quarks. We have studied the directed flow of as a function of rapidity and transverse momentum using quark coalescence as the mechanism for hadron production. Like the charm quark, the magnitude is found to be about seven times larger than that of the light () hadrons at large rapidity.
- Received 3 February 2018
- Revised 4 June 2018
DOI:https://doi.org/10.1103/PhysRevC.97.064917
©2018 American Physical Society