THE SU(2)XSU(2) BREAKING OF GOLDBERGER-TREIMAN RELATION IN BARYON CHIRAL PERTURBATION-THEORY

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题名:	THE SU(2)XSU(2) BREAKING OF GOLDBERGER-TREIMAN RELATION IN BARYON CHIRAL PERTURBATION-THEORY
作者:	LEE,SF;LIN,YC
贡献者:	物理研究所
日期:	1995
上传时间:	2010-07-08 14:10:05 (UTC+8)
出版者:	中央大學
摘要:	We calculate the chiral log corrections to the Goldberger-Treiman relation within the framework of baryon chiral perturbation theory. It is found that the parameter of deviation from the chiral limit, Delta(pi), is 16%, which is much larger than the experimental value 6%. The cause for this discrepancy is dominantly due to the sizeable contributions from the wave function renormalization of the nucleon and the correction of the nucleon mass. A complete renormalization program incorporating the O(p(2)) and O (p(3)) terms is needed to reconcile the discrepancy.
關聯:	PHYSICS LETTERS B
显示于类别:	[物理研究所] 期刊論文

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