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arXiv · 1911.00823

Charmed hadron production via equal-velocity quark combination in ultra-relativistic heavy ion collisions

Rui-Qin Wang·Jun Song·Feng-Lan Shao·Zuo-Tang Liang
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Abstract

Recent data on the production of $D$ mesons and $Λ_c^+$ baryons in heavy ion collisions at the Relativistic Heavy Ion Collider and the Large Hadron Collider exhibit a number of striking characteristics such as enhanced yield ratios $D_s^+/D^0$, $Λ_c^+/D^0$ and their transverse momentum dependences. In this paper, we derive the momentum dependence of open charm mesons and singly charmed baryons produced in ultra-relativistic heavy ion collisions via the equal-velocity quark combination. We present analytic expressions and numerical results of yield ratios and compare them with the experimental data available. We make predictions for other charmed hadrons.

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Rui-Qin Wang, Jun Song, Feng-Lan Shao, Zuo-Tang Liang. 2019-11-03. Charmed hadron production via equal-velocity quark combination in ultra-relativistic heavy ion collisions. https://doi.org/10.1103/physrevc.101.054903

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