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arXiv · 1308.2130

Multi-pomeron repulsion and the Neutron-star mass

Y. Yamamoto·T. Furumoto·N. Yasutake·TH. A. Rijken
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Abstract

A multi-pomeron exchange potential (MPP) is proposed as a model for the three-body repulsion indicated in neutron-star matter, which works universally among three- and four-baryons. Its strength is determined by analyzing the nucleus-nucleus scattering with the G-matrix folding model. The EoS in neutron matter is obtained including the MPP contribution. The neutron-star mass is calculated by solving the TOV equation. The maximum mass is obtained to be larger than the observed one $1.97 M_{solar}$ on the basis of the experimental data.

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Y. Yamamoto, T. Furumoto, N. Yasutake, TH. A. Rijken. 2013-08-09. Multi-pomeron repulsion and the Neutron-star mass. https://doi.org/10.1103/physrevc.88.022801

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