DECAY PARAMETERS FOR SIGMA +/- -] N PI +/-

被引：5

作者：

BANGERTER, RO

ALSTONGA.M

BARBAROG.A

GERSHWIN, LK

MAST, TS

MURRAY, JJ

SOLMITZ, FT

STEVENSON, ML

TRIPP, RD

机构：

[1] Lawrence Radiation Laboratory, University of California, Berkeley

来源：

PHYSICAL REVIEW | 1969年 / 187卷 / 05期

关键词：

D O I：

10.1103/PhysRev.187.1821

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, we present measurements of the decay parameters for n. The usual decay parameters and are related to by the equation =(1-2)12sin and =(1-2)12cos. Polarized were produced by the reactions K-p in the Lawrence Radiation Laboratory's 25-in. hydrogen bubble chamber. The average momentum of the incident K- beam was 385 MeV/c. The measurements of were made by observing the left-right asymmetry in the np interactions of those decay neutrons that subsequently scattered on the hydrogen in the bubble chamber. We obtain -=1419 deg and +=143 29 deg. Since =(|s|2-|p|2)(|s|2+|p|2), this shows that -n- takes place predominantly in the s wave, whereas + n + is dominated by p-wave decay. These results are in agreement with the l=12 rule. © 1969 The American Physical Society.

引用

页码：1821 / +

页数：1

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