Baryon masses θ(a2) in chiral perturbation theory

被引：15

作者：

Tiburzi, BC ^{[1
]}

机构：

[1] Duke Univ, Dept Phys, Durham, NC 27708 USA

来源：

NUCLEAR PHYSICS A | 2005年 / 761卷 / 3-4期

关键词：

D O I：

10.1016/j.nuclphysa.2005.07.011

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：

The chiral Lagrangian for the Symanzik action through O(a(2)) for baryons is obtained. We consider two flavor unquenched and partially quenched lattice theories, allowing for mixed actions in the latter. As an application, we calculate masses to O(a(2)) for the nucleons and deltas, and investigate the corrections due to the violation of O(4) rotational invariance. These results are contrasted with those in the meson sector for lattice simulations using mixed and unmixed actions of Wilson and Ginsparg-Wilson quarks. (c) 2005 Elsevier B.V. All rights reserved.

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页码：232 / 258

页数：27

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