Open-Flavor Heavy Hadron Production in Heavy-Ion Collisions

Abstract

We study the production of open-flavor heavy hadrons in relativistic heavy-ion collisions. The hadronization in the quark-gluon plasma is described in the quark coalescence model. We evaluated yields and transverse momentum distributions. A simultaneous study of conventional and exotic hadrons is carried out. The Wigner functions are evaluated using hadron wave functions obtained from a single realistic quark model. Thus, results are presented in a single framework for the production of open-flavor heavy mesons, baryons, and exotic tetraquarks, in particular: $D^0$, $B^0$, ${\Lambda }_Q$, ${\Sigma }_Q$, ${\Xi }_Q$, ${\Xi }_{Q{Q}^{\prime }}$, and $T_{Q{Q}^{\prime }}$ ($Q,Q^{\prime }=c$ or $b$). The consequences of a partial restoration of chiral symmetry at the hadronization temperature are studied in detail.

Comments: Accepted for publication in Physical Review D