Eur. Phys. J. A (2021) 57: 44
https://doi.org/10.1140/epja/s10050-021-00361-7

Regular Article – Theoretical Physics

Signature of intermittency in hybrid UrQMD-hydro data at 10 AGeV Au$+$Au collisions

Nuclear and Radiation Physics Research Laboratory, Department of Physics, Gauhati University, 781014, Guwahati, Assam, India

^b buddhadeb.bhattacharjee@cern.ch

Received: 17 September 2020
Accepted: 13 January 2021
Published online: 30 January 2021

Abstract

An attempt has been made, in the light of scaled factorial moment (SFM) analysis, to investigate hybrid UrQMD-hydro generated events of Au+Au collisions at 10 AGeV to realize the role of hydrodynamic evolution on observed intermittency, if any. $ln⟨F_q⟩$ values for $q=2$–6 are found to increase with increasing values of $ln{M}^2$ indicating unambiguously the presence of intermittency in our data sample generated with both chiral and hadronic equations of state (EoS). Although various late processes like meson-meson (MM) and meson-baryon (MB) hadronic re-scattering and/or resonance decays are found to influence the intermittency index significantly, these process could not be held responsible for the observed intermittency in hybrid UrQMD-hydro data. Moreover, the signature of intermittency is also found to exists in different sets of data sample generated with a change in initial conditions such as the start time ($t_{\mathit{start}}$) and transition energy density (TED) of the UrQMD-hydro model confirming the robustness of the observed power law behavior $F_q\propto {(M^2)}^{{\alpha }_q}$ in our various generated sets of hydro data.