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arXiv 1502.01248nucl-thastro-ph.SR
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核物质中三核子力模型的比较研究

Comparative study of three-nucleon force models in nuclear matter

Domenico Logoteta, Isaac Vidaña, Ignazio Bombaci, Alejandro Kievsky

摘要:

本文采用微观多体Brueckner-Hartree-Fock(BHF)方法,采用Argonne V18(AV 18)核子-核子(NN)势,补充了最近建立的两种不同的三核子力模型,计算了对称核物质和纯中子物质的每粒子能量,$^3$ He和$^4$ He核以及中子-氘核双重散射长度。我们发现这些新的三核子力模型都不能同时再现对称核物质的经验饱和点和三核子和四核子系统的性质。

英文摘要:

We calculate the energy per particle of symmetric nuclear matter and pure neutron matter using the microscopic many-body Brueckner-Hartree-Fock (BHF) approach and employing the Argonne V18 (AV18) nucleon-nucleon (NN) potential supplemented with two different three-nucleon force models recently constructed to reproduce the binding energy of $^3$H, $^3$He and $^4$He nuclei as well as the neutron-deuteron doublet scattering length. We find that none of these new three-nucleon force models is able to reproduce simultaneously the empirical saturation point of symmetric nuclear matter and the properties of three- and four-nucleon systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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