Hypernuclei and Neutron Stars with Charge Symmetry Breaking Hyperonic Potential

Авторы: Lanskoy D.E., Mikheev S.A., Sidorov S.V., Tretyakova T.Yu
Журнал: Moscow University Physics Bulletin
Том: 78
Номер: 5
Год издания: 2023
Издательство: Allerton Press
Местоположение издательства: New York, N.Y., United States
Первая страница: 623
Последняя страница: 633
DOI: 10.3103/S0027134923050090
Аннотация: In this paper, we propose a method of taking charge symmetry breaking (CSB) in hypernuclei and neutron stars into account within the framework of the Hartree-Fock approach with Skyrme interaction. The parameters of the contribution of ΛN-Skyrme force leading to CSB are derived from the corresponding parameters of the hyperon-nucleon interaction in the meson exchange models. Based on the obtained parameters, the effect of charge symmetry breaking on the hyperon binding energy in carbon hypernuclei is analyzed. The effect of charge symmetry breaking on the characteristics of neutron stars, such as their maximum mass and radii, is considered for the first time.
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