BARYON DECUPLET MASS RELATIONS IN CHIRAL PERTURBATION-THEORY

被引:26
作者
LEBED, RF
机构
[1] Theoretical Physics Group, Lawrence Berkeley Laboratory, University of California, Berkeley
基金
美国国家科学基金会;
关键词
D O I
10.1016/0550-3213(94)00375-0
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
Baryon decuplet masses within an SU(3)(L) x SU(3)(R) chiral Lagrangian formalism are found to satisfy four relations at second order in flavor breaking. As a result, the one-loop corrections from Lagrangian terms up to first order in flavor breaking are observed to give finite and calculable corrections to these relations. The importance of group theory in establishing the relations and eliminating many loop corrections is emphasized. The formal expressions for these corrections are presented, followed by numerical evaluations. We find consistency between the experimental values of breaking of the relations and the loop corrections of these relations as predicted by chiral perturbation theory.
引用
收藏
页码:295 / 318
页数:24
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