Twisted valence quarks and hadron interactions on the lattice

被引：68
作者：
Bedaque, PE [1 ]
Chen, JW
机构：
[1] Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[2] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
[3] Natl Taiwan Univ, Natl Ctr Theoret Sci Taipei, Taipei 10617, Taiwan
来源：
PHYSICS LETTERS B | 2005年 / 616卷 / 3-4期
关键词：
D O I：
10.1016/j.physletb.2005.04.045
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider QCD with valence and sea quarks obeying different boundary conditions. We point out that the energy of low lying two hadron states do not depend on the boundary condition of the sea quarks (up to exponentially small corrections). Thus, the advantages in using twisted boundary conditions on the lattice QCD extraction of nucleon-nucleon phase shifts can be gained without the need of new gauge configurations, even in fully unquenched calculations. (c) 2005 Elsevier B.V. All rights reserved.
引用
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页码：208 / 214
页数：7
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