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Information entropy for central $^{197}$Au+$^{197}$Au collisions in the UrQMD model
- Publication Year :
- 2024
-
Abstract
- Multiplicity information entropy in central $^{197}$Au + $^{197}$Au collisions at impact parameters of 0$-$3 fm are calculated at various center of mass energies ($\sqrt{s_{\rm NN}}$) of 5.0, 7.7, 11.5, 14.5, 19.6, 27.0, 32.0, 35.0, 39.0, and 54.4 GeV using the Ultra-relativistic Quantum Molecular Dynamics model (UrQMD). The simulations in UrQMD model are compared with hydro modes with three different equations of state (EoS) and also with a default mode without hydrodynamics. The study reveals that the information entropies of baryons, net-baryons and net-protons with different equations of state in the hydro modes exhibit first decreases and then slowly increases with the increase of $\sqrt{s_{\rm NN}}$, while those of hadrons and anti-hadrons, antibaryons show a monotonous increase with $\sqrt{s_{\rm NN}}$. An enhancement is found around $\sqrt{s_{\rm NN}}$ $\sim$ 30 GeV potentially corresponding to the critical endpoint with chiral hadron gas EoS and Bag model EoS.<br />Comment: 7 pages, 7 figures
- Subjects :
- Nuclear Theory
Nuclear Experiment
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2404.03424
- Document Type :
- Working Paper