Competition between diffusion and rapid expansion andits impact on critical fluctuations in heavy-ion collisions. - Archive ouverte HAL
Communication Dans Un Congrès Année : 2022

Competition between diffusion and rapid expansion andits impact on critical fluctuations in heavy-ion collisions.

Résumé

We study the impact of the competition between the expansion of the medium created in heavy-ion collisions and its diffusive properties on the critical fluctuations of the net-baryon density. As the relaxation time of the fluctuations is connected with the diffusive properties, the latter determine the in- or out-of-equilibrium nature of the net-baryon density fluctuations during the fireball evolution. This may result in important consequences for the phenomenological interpretation of heavy-ion collision data. We study three possible situations that can occur as a result of the competition between diffusion and expansion and discuss the impact of this competition on the integrated second and fourth order cumulants of net-baryon density fluctuations at freeze-out in these situations.

Dates et versions

hal-03472871 , version 1 (09-12-2021)

Identifiants

Citer

Grégoire Pihan, Marcus Bluhm, Masakiyo Kitazawa, Marlene Nahrgang, Taklit Sami. Competition between diffusion and rapid expansion andits impact on critical fluctuations in heavy-ion collisions.. International Conference on Critical Point and Onset of Deconfinement, Mar 2021, Online Conference, Germany. pp.026, ⟨10.22323/1.400.0026⟩. ⟨hal-03472871⟩
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