论文标题

波恩潜力和相对论和非权威主义框架中的Pion交流互动中的核物质

Pion Exchange Interaction in Bonn Potential and Relativistic and Non-relativistic Framework in Nuclear Matter

论文作者

Hu, Jinniu, Wang, Chencan

论文摘要

作为低能区域中量子染色体动力学的残留相互作用,现在模型图像现在只能精确地描述核子核子(NN)势。在波恩电势中,是最著名的NN相互作用模型之一,核子通过交换亲和几个较重的媒介物相互相互作用,那里的乳子起着至关重要的作用。它提供了张力力在中间区域中的部分贡献,也是NN潜力中远程区域中的主要成分。但是,由于其伪层或伪级特性,很难在核多体系统中进行处理。最近,提出了三个高精度电荷依赖性波恩电势,该电位与伪耦合类型和不同的袖子核子偶联强度提出,并将它们应用于非偏见和相关框架中的核物质和中子星的性质。此外,为了正确处理NN潜力的强烈短程排斥和张量的力量,在过去的十年中,也已经开发了一些新的相对论{\ IT从头算法}方法,以讨论Pion和相对论在核物质中的作用。

As the residual interaction of quantum chromodynamics in low-energy region, the nucleon-nucleon (NN) potential can only be exactly described by the model picture now. In the Bonn potential, one of the most well-known NN interaction models, the nucleons interact with each other through exchanging the pion and several heavier mesons, where the pion plays an essential role. It provides a partial contribution of tensor force in the intermediate-range region and the main component in the long-range region in NN potential. However, it is very difficult to be treated in the nuclear many-body system due to its pseudovector or pseudoscalar property. Recently, three high-precision charge-dependent Bonn potentials were proposed with pseudovector coupling types and different pion-nucleon coupling strengths and applied them to study the properties of nuclear matter and neutron stars in the non-relativistic and relativistic frameworks. Furthermore, to properly deal with the strong short-range repulsion and tensor force of the NN potential, some new relativistic {\it ab initio} methods have also been developed in the past decade to discuss the role of pion and relativistic effects in nuclear matter.

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