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An extended Skyrme momentum dependent potential in asymmetric nuclear matter and transport models

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arxiv 2311.04026 v2 pith:WM2NITGB submitted 2023-11-07 nucl-th nucl-ex

Junping Yang , Xiang Chen , Ying Cui , Yangyang Liu , Zhuxia Li , Yingxun Zhang This is my paper · ORCID
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keywords extendedskyrmemodelasymmetricdynamicsinteractionisospinmolecular
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Based on an extended Skyrme momentum-dependent interaction (MDI), we derive an isospin asymmetric equation of state, isospin-dependent single-particle potential and the Hamiltonian which can be used in the Boltzmann-Uehling-Uhlenbeck (BUU) model and the quantum molecular dynamics (QMD) model at the beam energy less than 1 GeV/u. As an example of the applications of extended Skyrme MDI, we also present the results obtained with the extended Skyrme momentum-dependent interaction in the improved quantum molecular dynamics model (ImQMD), and the influence of the effective mass splitting on the isospin sensitive observables, i.e., the single and double neutron-to-proton ratios, is discussed again.

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  1. 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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