Effective theory of the triton

被引：271

作者：

Bedaque, PF ^{[1
]}

Hammer, HW

van Kolck, U

机构：

[1] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA

[2] TRIUMF, Vancouver, BC V6T 2A3, Canada

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

[4] Univ Washington, Dept Phys, Seattle, WA 98195 USA

来源：

NUCLEAR PHYSICS A | 2000年 / 676卷

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

D O I：

10.1016/S0375-9474(00)00205-0

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：

We apply the effective field theory approach to the three-nucleon system. In particular, we consider S = 1/2 neutron-deuteron scattering and the triton. We show that in this channel a unique nonperturbative renormalization rakes place which requires the introduction of a single three-body force at leading order. With one fitted parameter we iind a good description of low-energy data, Invariance under the renormalization group explains some universal features of the three-nucleon system - such as the Thomas and Efimov effects and the Phillips line - and the origin of SU(4) symmetry in nuclei. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：357 / 370

页数：14

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