ELECTROMAGNETIC DECAYS OF EXCITED HYPERONS

被引：22
作者：
UMINO, Y
MYHRER, F
机构：
[1] MIT,CTR THEORET PHYS,NUCL SCI LAB,CAMBRIDGE,MA 02139
[2] MIT,DEPT PHYS,CAMBRIDGE,MA 02139
[3] UNIV S CAROLINA,DEPT PHYS & ASTRON,COLUMBIA,SC 29208
来源：
NUCLEAR PHYSICS A | 1991年 / 529卷 / 04期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0375-9474(91)90594-V
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 negative-parity hyperon masses are calculated in the chiral bag model. The flavor contents of the hyperons are found to be different from what is found in the non-relativistic quark model. Using these new wave functions for the excited hyperons, the radiative decay widths of LAMBDA(1520) and LAMBDA(1405) to the ground states-LAMBDA and SIGMA-0 are determined. We find these widths to be much smaller than the non-relativistic quark model ones and explain why the two models give different predictions.
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页码：713 / 726
页数：14
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