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

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arxiv 2203.05855 v1 pith:VAFG4GMV submitted 2022-03-11 nucl-th

Pengcheng Li , Yongjia Wang , Qingfeng Li , Hongfei Zhang This is my paper · ORCID
classification nucl-th
keywords energynuclearstoppingbeamdirectedellipticflowin-medium
verification ladder T0 review T1 audit T2 compute T3 formal
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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.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Effects of light-cluster degrees of freedom on collective flows in heavy-ion collisions at FOPI energies

    nucl-th 2026-08 conditional novelty 6.0 of 10

    Explicitly propagating light clusters in a Boltzmann-Uehling-Uhlenbeck transport model substantially modifies predicted proton v1-v4 flows at low FOPI energies (120-400 A MeV) but not above 600 A MeV.

  2. Bayesian analysis of properties of nuclear matter with the FOPI experimental data

    nucl-th 2025-09 conditional novelty 6.0 of 10

    Bayesian fits to FOPI Au+Au flow and stopping data yield m*/m0 around 0.78-0.88 and F around 0.75-0.88, while K0 remains unconstrained.

  3. Simultaneous description of high density QCD matter in heavy ion collisions and neutron star observations

    hep-ph 2025-01 conditional novelty 6.0 of 10

    An equation of state selected to match neutron star mass-radius data also describes HADES heavy-ion observables when implemented with momentum-dependent potentials in UrQMD.

  4. In-medium effects of nucleon-nucleon cross sections in heavy-ion collisions

    nucl-th 2025-07 conditional novelty 5.0 of 10

    Using BHF-derived in-medium cross sections in the IBUU transport model, the paper shows that nuclear stopping and differential flow are sensitive to scattering-amplitude, density-of-states, and total-momentum effects,...

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