2-NUCLEON INDUCED LAMBDA-DECAY IN NUCLEI

被引：99

作者：

ALBERICO, WM

DEPACE, A

ERICSON, M

MOLINARI, A

机构：

[1] IST NAZL FIS NUCL,TURIN,ITALY

[2] CERN,CH-1211 GENEVA 23,SWITZERLAND

[3] UNIV LYON 1,CNRS,INST NATL PHYS NUCL & PHYS PARTICLES,INST PHYS NUCL,F-69621 VILLEURBANNE,FRANCE

来源：

PHYSICS LETTERS B | 1991年 / 256卷 / 02期

关键词：

D O I：

10.1016/0370-2693(91)90663-B

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The pionic channel for LAMBDA-decay in nuclei is forbidden by the Pauli principle. We discuss the decay in another state, the pion branch, a collective nuclear state which is a coherent superposition of pionic and DELTA-h states and which lies at an energy lower than the physical pion. Its decay mode in the region concerned here is by two-particle emission. The LAMBDA-decay process is then a two-nucleon induced one: LAMBDA + p + n --> p + n + n. We find a sizeable branching ratio.

引用

页码：134 / 140

页数：7

共 29 条

[1] EFFECT OF STRONG CORRELATIONS ON BARYON-BARYON WEAK INTERACTIONS [J].