Diffusion ofΛcin hot hadronic medium and its impact onΛc/Dratio

2014/07/31 by Sabyasachi Ghosh, Santosh K. Das, Vincenzo Greco +3
Physics and Astronomy · #Baryon #Diffusion #Hadron #Heavy ion #High-Energy Particle Collisions Research #Ion #Lambda #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Thermodynamics #nucl-th

paper · pdf · doi:10.1103/physrevd.90.054018

published as Phys. Rev. D. 90, 054018 (2014) · 6 pages, 5 figures

openalex publication_date 2014/09/17 · arxiv created 2014/09/19 · arxiv updated 2014/09/22 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The drag and diffusion coefficients of the \mathrm\ensuremathΛ_c(2286 MeV) have been evaluated in the hadronic medium which is expected to be formed in the later stages of the evolving fireball produced in heavy ion collisions at RHIC and LHC energies. The interactions between the \mathrm\ensuremathΛ_c and the hadrons in the medium have been derived from an effective hadronic Lagrangian, as well as from the scattering lengths obtained in the framework of heavy baryon chiral perturbation theory (HB\ensuremathχPT). In both the approaches, the magnitude of the transport coefficients turn out to be significant. A larger value is obtained in the former approach with respect to the latter. Significant values of the coefficients indicate a substantial amount of interaction of the \mathrm\ensuremathΛ_c with the hadronic thermal bath. Furthermore, the transport coefficients of the \mathrm\ensuremathΛ_c are found to be different from the transport coefficients of the D meson. The present study indicates that the hadronic medium has a significant impact on the \mathrm\ensuremathΛ_c/D ratio in heavy ion collisions.

Citations

• Toward an understanding of the single electron data measured at the BNL Relativistic Heavy Ion Collider (RHIC)
• Heavy-quark probes of the quark-gluon plasma and interpretation of recent data taken at the BNL Relativistic Heavy Ion Collider
• Nonperturbative Heavy-Quark Diffusion in the Quark-Gluon Plasma
• How much do heavy quarks thermalize in a heavy ion collision?
• Parton Coalescence and the Antiproton/Pion Anomaly at RHIC
• Momentum dependence of drag coefficients and heavy flavor suppression in quark gluon plasma
• Transport properties of bottomed mesons in a hot mesonic gas
• Partonic coalescence in relativistic heavy ion collisions