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Role of isospin dependent mean field in pion production in heavy ion reactions

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arxiv nucl-th/9708047 v1 pith:UNLTFUIO submitted 1997-08-27 nucl-th

V.S. Uma Maheswari , C. Fuchs , Amand Faessler , Z.S. Wang , D.S. Kosov This is my paper · ORCID
classification nucl-th
keywords pionfieldidmfisospinmeanchargeddependentnuclear
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abstract

The importance of a isospin dependent nuclear mean field (IDMF) in regard to the pion production mechanism is studied for the reaction $Au+Au$ at 1 GeV/nucleon using the Quantum Molecular Dynamics (QMD) model. In particular, the effect of the IDMF on pion spectra and the charged pion ratio are analyzed. It is found that the inclusion of a IDMF considerably suppresses the low$-p_t$ pions, thus, leading to a better agreement with the data on pion spectra. Moreover, the rapidity distribution of the charged pion ratio appears to be sensitive to the isospin dependence of the nuclear mean field.

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Cited by 2 Pith papers

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  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. Extended Skyrme effective interactions with higher-order momentum-dependence for transport models and neutron stars

    nucl-th 2024-12 conditional novelty 6.0 of 10

    The authors generalize the Skyrme pseudopotential to N5LO with p^10 momentum dependence, fit it to the optical potential up to 2 GeV, and show the resulting interactions reproduce HADES proton flow data.

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