Abstract
This proceedings contribution briefly summarizes our recent VISHNU hybrid model investigations on the chemical and thermal freeze-out of various hadrons species in 2.76 A TeV Pb+Pb collisions. Detailed analysis on the evolution of particle yields and the last elastic collisions distributions during the hadronic evolution reveals that the two multi-strange hadrons, Ξ and Ω, experience early chemical and thermal freeze-out when compared with other hadron species.
Highlights
In relativistic heavy-ion collisions at top RHIC and the LHC energies, a hot and dense matter– the Quark-Gluon Plasma (QGP) has been created
It was found that the baryon and anti-baryon (B-B) annihilations during the hadronic evolution reduce the proton and anti-proton (p/p) yields by ∼ 30%, largely improving the description of the p/pdata [11]
Summary In this proceeding, we briefly review our recent investigations on the chemical and thermal freeze-out of various hadron species in 2.76 A TeV Pb+Pb collisions within the framework of VISHNU hybrid model
Summary
In relativistic heavy-ion collisions at top RHIC and the LHC energies, a hot and dense matter– the Quark-Gluon Plasma (QGP) has been created. With the termination of inelastic and elastic collisions, the evolving system reach the chemical and thermal freeze-out, respectively. The chemical and thermal freeze-out procedures are very possibly hadron-species dependent.
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