IS THERE A BOUND HE-4(SIGMA)

被引：24

作者：

DALITZ, RH

DAVIS, DH

DELOFF, A

机构：

[1] UNIV LONDON UNIV COLL,DEPT PHYS & ASTRON,LONDON WC1E 6BT,ENGLAND

[2] INST NUCL STUDIES,PL-00681 WARSAW,POLAND

来源：

PHYSICS LETTERS B | 1990年 / 236卷 / 01期

关键词：

D O I：

10.1016/0370-2693(90)90598-Z

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent KEK data on the inclusive (K-, π-) reaction for K- mesons stopping in a helium target have been interpreted as evidence for an unstable bound state Σ4He. We examine here data, largely background-free, on exclusive (K-, π-) reactions for K- stops in helium bubble chambers, using an impulse-approximation model including final-state interactions for the hyperons. These data indicate strong attraction, but no unstable bound state, for the systems (3H, 3He)Σ. © 1990.

引用

页码：76 / 80

页数：5

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