Probing vorticity in heavy ion collision with dilepton production

Abstract

We study the effect of vorticity present in heavy ion collisions (HICs) on the temperature evolution of hot quark-gluon plasma in the presence of spin-vorticity coupling. The initial global rotation entails a nontrivial dependence of the longitudinal flow velocity on the transverse coordinates and also develops a transverse velocity component that depends upon the longitudinal coordinate. Both of these velocities lead to a 2+1 dimensional expansion of the fireball. It is observed that with finite vorticity and spin-polarization the fireball cools faster as compared to the case without vorticity. Furthermore, we discuss the consequence of this on the production of thermal dileptons.

arXiv comment14 pages, 6 figures. Version accepted in PRD

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Cited by in corpus (6)

• Causality and dissipation in relativistic polarizeable fluids
• New Developments in Relativistic Fluid Dynamics with spin
• Thermodynamics of a rotating hadron resonance gas with van der Waals interaction
• Thermal dilepton production in collisional hot QCD medium in the presence of chromo-turbulent fields
• Flow and vorticity with varying chemical potential in relativistic heavy ion collisions
• Vorticity-induced effects from Wess-Zumino-Witten terms