Chiral symmetry and three-nucleon forces

被引：193

作者：

Friar, JL ^{[1
]}

Hüber, D

van Kolck, U

机构：

[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[2] CALTECH, Kellogg Radiat Lab, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW C | 1999年 / 59卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.59.53

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

After a brief review of the role three-nucleon forces play in the few-nucleon systems, the chiral-perturbation-theory approach to these forces is discussed. Construction of the (nominal) leading- and subleading-order Born terms and pion-rescattering graphs contributing to two-pion-exchange three-nucleon forces is reviewed, and comparisons are made of the types of such forces that are used today. It is demonstrated that the short-range c term of the Tucson-Melbourne force is unnatural in terms of power counting and should be dropped. The cl;lss of two-pion-exchange three-nucleon forces then becomes rather uniform. [S0556-2813(99)02401-2].

引用

页码：53 / 58

页数：6

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