神经网络接触相互作用和3N力的统一模糊性

arXiv: Nuclear Theory Pub Date : 2020-07-08 DOI:10.1103/physrevc.102.064003

L. Girlanda, A. Kievsky, L. Marcucci, M. Viviani

{"title":"神经网络接触相互作用和3N力的统一模糊性","authors":"L. Girlanda, A. Kievsky, L. Marcucci, M. Viviani","doi":"10.1103/physrevc.102.064003","DOIUrl":null,"url":null,"abstract":"We identify a redundancy between two- and three-nucleon contact interactions at the fourth and fifth order of the chiral expansion respectively. In particular we show that tensor-type and spin-orbit three-nucleon contact interactions effectively account for that part of the two-nucleon interaction which depends on the total center-of-mass momentum and is unconstrained by relativity. This might give the chiral effective field theory enough flexibility to successfully address $A=3$ scattering observables already at N3LO.","PeriodicalId":8463,"journal":{"name":"arXiv: Nuclear Theory","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2020-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Unitary ambiguity of \\nNN\\n contact interactions and the \\n3N\\n force\",\"authors\":\"L. Girlanda, A. Kievsky, L. Marcucci, M. Viviani\",\"doi\":\"10.1103/physrevc.102.064003\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We identify a redundancy between two- and three-nucleon contact interactions at the fourth and fifth order of the chiral expansion respectively. In particular we show that tensor-type and spin-orbit three-nucleon contact interactions effectively account for that part of the two-nucleon interaction which depends on the total center-of-mass momentum and is unconstrained by relativity. This might give the chiral effective field theory enough flexibility to successfully address $A=3$ scattering observables already at N3LO.\",\"PeriodicalId\":8463,\"journal\":{\"name\":\"arXiv: Nuclear Theory\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-07-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv: Nuclear Theory\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1103/physrevc.102.064003\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv: Nuclear Theory","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1103/physrevc.102.064003","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 4

摘要

我们分别在四阶和五阶的手性展开中确定了二核子和三核子接触相互作用之间的冗余。特别是，我们表明张量型和自旋轨道三核子接触相互作用有效地解释了依赖于总质心动量和不受相对论约束的两核子相互作用的那一部分。这可能会给手性有效场理论提供足够的灵活性，以成功地解决N3LO上已经存在的$A=3$散射观测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Unitary ambiguity of NN contact interactions and the 3N force

We identify a redundancy between two- and three-nucleon contact interactions at the fourth and fifth order of the chiral expansion respectively. In particular we show that tensor-type and spin-orbit three-nucleon contact interactions effectively account for that part of the two-nucleon interaction which depends on the total center-of-mass momentum and is unconstrained by relativity. This might give the chiral effective field theory enough flexibility to successfully address $A=3$ scattering observables already at N3LO.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

arXiv: Nuclear Theory

自引率

0.00%

发文量