Microscopic study of strange hadron productions at the LHC with$\sqrt{s_{NN}}$=2.76 TeV

Abstract

Ratio of the yield of strange hadrons to pions is considered as an important observable in studying the properties of the system produced in relativistic heavy ion collisions. Production of strange hadrons $K,\bar{K},\Lambda ,\Sigma ,\Xi$ and $\Omega$ have been evaluated microscopically using rate equations by considering their hadronic interaction cross sections in an expanding medium. The yields obtained from rate equations are normalized with thermal pions and compared with the measurements from Pb-Pb collisions at various multiplicities at LHC energy. The calculation has been done for various initial and freeze out conditions. At 2760 GeV, LHC energy, $\Lambda ,\Xi ,\Omega$ freeze out close to $T_C$ and $K_s^0$ freezes out little later. But there is a subtle difference in freeze out temperatures of different species which may be distinguishable at lower colliding energies.

arXiv commentAccepted in Phys. Rev. D

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Cited by in corpus (5)

• Understanding the $K^{\ast }/K$ ratio in heavy ion collisions
• Diffusion matrix associated with the diffusion processes of multiple conserved charges in a hot and dense hadronic matter
• Study of freeze-out dynamics of strange hadrons
• Interaction of exotic states in a hadronic medium: the $Z_c(3900)$ case
• Cascade and Omega productions from Pb+Pb Collisions at LHC energy