Accessing the in-medium effects on nucleon-nucleon elastic cross section with collective flows and nuclear stopping

Abstract

A systematic study of the in-medium correction factor ($F$) on nucleon-nucleon elastic cross section is performed within the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model. The effects of the beam energy dependence of $F$ on the directed, elliptic flow and nuclear stopping in ${}^{197}$Au+${}^{197}$Au collisions with energy ranging from $0.09$ to $0.8A$ GeV are explored. It is found that the directed, elliptic flow and nuclear stopping at relatively low energies are very sensitive to $F$, and the sensitivity gradually weakens with increasing beam energy. The beam energy dependent in-medium correction factor $F$ is deduced from the comparison of the excitation functions of the directed, elliptic flow and nuclear stopping between the calculated results and the FOPI experimental data.

arXiv comment8 pages, 9 figures

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Cited by in corpus (15)

• The QCD phase diagram and Beam Energy Scan physics: a theory overview
• Effects of sequential decay on collective flows and nuclear stopping power in heavy-ion collisions at intermediate energies
• Bayesian inference of in-medium baryon-baryon scattering cross sections from HADES proton flow data
• Elliptic flow in heavy-ion collisions at intermediate energy: the role of impact parameter, mean field potential, and collision term
• Constraining nucleon effective masses with flow and stopping observables from the S$\pi$RIT experiment
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• Neural Network Emulation of Flow in Heavy-Ion Collisions at Intermediate Energies
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