Fast heating dissociation of in heavy ion collisions at RHIC *

2020/07/09 by Yunpeng Liu, Baoyi Chen · 3 citations
Physics and Astronomy · #Adiabatic process #Atomic physics #Dissociation (chemistry) #Heavy ion #High-Energy Particle Collisions Research #Ion #Nuclear physics #Particle physics theoretical and experimental studies #Physical chemistry #Physics #Quantum Chromodynamics and Particle Interactions #Thermodynamics #nucl-th

paper · pdf · doi:10.1088/1674-1137/abb4d7

published in Chinese Physics C 44(12), 124106 (IOP Publishing) · 5 pages, 4 figures

arxiv created 2020/07/09 · openalex created_date 2020/07/16 · openalex publication_date 2020/09/03 · arxiv updated 2020/12/30 · openalex updated_date 2026/08/06

Abstract

Abstract By adopting the adiabatic assumption in the cooling process, we discuss a novel mechanism of <?CDATA Υ(1S) ?> suppression that occurs due to the fast heating process at the early stage of the fireball, instead of its finite decay width in a finite temperature medium generated by heavy ion collisions. We calculate the transition probability after the fast heating dissociation as a function of the temperature of the medium and the nuclear modification factor in central collisions and find that the suppression is not negligible at RHIC, even if the width of <?CDATA Υ(1S) ?> becomes zero.

Citations

• The thermal width of heavy quarkonia moving in quark–gluon plasma
• Quark mass and flavour dependence of the QCD phase transition
• Potential NRQCD: an effective theory for heavy quarkonium
• The phase diagram of dense QCD
• Charge separation induced by -odd bubbles in QCD matter
• Sequential charmonium dissociation
• EnhancedJ/ψproduction in deconfined quark matter
• Colour Deconfinement and Quarkonium Binding
• J/ψProduction in Quark-Gluon Plasma
• Color screening and regeneration of bottomonia in high-energy heavy-ion collisions
• Thermal versus direct J/Ψ production in ultrarelativistic heavy-ion collisions