학술논문

Centrality and transverse momentum dependence of D0 -meson production at mid-rapidity in Au + Au collisions at s NN =200 GeV
Document Type
article
Source
Physical Review C. 99(3)
Subject
nucl-ex
hep-ex
Language
Abstract
We report a new measurement of D0-meson production at mid-rapidity (|y|4GeV/c in central 0-10% Au + Au collisions. At low pT, the nuclear modification factors show a characteristic structure qualitatively consistent with the expectation from model predictions that charm quarks gain sizable collective motion during the medium evolution. The improved measurements are expected to offer new constraints to model calculations and help gain further insights into the hot and dense medium created in these collisions.