Hadronization of $\hat{I}{›}_c^{+}$ baryons from recombination model in Pb+Pb collisions at the Large Hadron Collider

Abstract

The production of $\hat{I}{›}_c^{+}$ baryons in Pb+Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV is investigated within the quark recombination framework, including the energy loss of light and charm quarks inside the hot and dense medium. The model simultaneously describes the transverse momentum ($p_T$) spectra of $\hat{I}{›}_c^{+}$ baryons, $\hat{I}{›}_c^{+}/D^0$ yield ratio, which is attributed to the dominance of quark recombination mechanism in the Quark-Gluon Plasma (QGP), and the second harmonic coefficient of $\hat{I}{›}_c^{+}$ baryons with emphasis on the effects of minijets on the azimuthal anisotropy. Furthermore, we extend the theoretical calculation to Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV and make predictions for $\hat{I}{›}_c^{+}$ baryons and $\hat{I}{›}_c^{+}/D^0$ yield ratio. The simultaneous description of the yield, baryon-to-meson ratio, and azimuthal anisotropy further validates that the recombination model is an effective hadronization mechanism in heavy-ion collisions.

8 pages, 6 figures