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arXiv 1801.00844nucl-thhep-ph
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手征微扰论中重子-重子相互作用的相对论表述

Towards a relativistic formulation of baryon-baryon interactions in chiral perturbation theory

Xiu-Lei Ren, Kai-Wen Li, Li-Sheng Geng

摘要:

在这次演讲中,我们报告了最近在协变手征微扰理论中对相对论性核子-核子和超子-核子相互作用的两个研究,其中它们被构建到了主导阶。通过对核子-核子和超子-核子散射数据的拟合,确定了相关的未知低能常数。结果表明,这些相互作用可以描述散射数据的质量类似于他们的下一个领先的顺序非相对论性同行。这些研究表明,构造相对论重子-重子相互作用在技术上是可行的,而且经过进一步的改进,这些相互作用可以为{ \it ab initio}相对论原子核结构和反应研究提供重要的输入,有助于提高我们对低能强相互作用的理解.

英文摘要:

In this talk, we report on two recent studies of relativistic nucleon-nucleon and hyperon-nucleon interactions in covariant chiral perturbation theory, where they are constructed up to leading order. The relevant unknown low energy constants are fixed by fitting to the nucleon-nucleon and hyperon-nucleon scattering data. It is shown that these interactions can describe the scattering data with a quality similar to their next-to-leading order non-relativistic counterparts. These studies show that it is technically feasible to construct relativist baryon-baryon interactions, and in addition, after further refinements, these interactions may provide important inputs to {\it ab initio} relativistic nuclear structure and reaction studies and help improve our understanding of low energy strong interactions.

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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