A method to measure the antikaon-nucleon scattering length in lattice QCD

被引：144
|
作者：
Lage, Michael [1 ,2 ]
Meissner, Ulf-G. [1 ,2 ,3 ,4 ]
Rusetsky, Akaki [1 ,2 ]
机构：
[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theorie, D-53115 Bonn, Germany
[2] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
[3] KFA Julich GmbH, Forschungszentrum, Inst Kernphys Theorie, Julich Ctr Hadron Phys, D-52425 Julich, Germany
[4] Inst Adv Simulat, D-52425 Julich, Germany
来源：
PHYSICS LETTERS B | 2009年 / 681卷 / 05期
基金：
美国国家科学基金会;
关键词：
EFFECTIVE-FIELD THEORY; CHIRAL DYNAMICS; STATES; SPECTRUM; DECAYS; ATOMS; CUSPS;
D O I：
10.1016/j.physletb.2009.10.055
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We propose a method to determine the isoscalar (K) over barN scattering length on the lattice. Our method represents the generalization of Luscher's approach in the presence of inelastic channels (complex scattering length). In addition, the proposed approach allows one to find the position of the S-matrix pole corresponding the Lambda(1405) resonance. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：439 / 443
页数：5
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