BRANCHING RATIO AND ASYMMETRY FOR =0-]LAMBDA-GAMMA

被引：37

作者：

JAMES, C

HELLER, K

BORDER, P

DWORKIN, J

OVERSETH, OE

RAMEIKA, R

VALENTI, G

HANDLER, R

LUNDBERG, B

PONDROM, L

SHEAFF, M

WILKINSON, C

BERETVAS, A

CUSHMAN, P

DEVLIN, T

LUK, KB

THOMSON, GB

WHITMAN, R

机构：

[1] UNIV MINNESOTA,SCH PHYS & ASTRON,MINNEAPOLIS,MN 55455

[2] UNIV MICHIGAN,DEPT PHYS,ANN ARBOR,MI 48109

[3] UNIV WISCONSIN,DEPT PHYS,MADISON,WI 53706

[4] RUTGERS STATE UNIV,DEPT PHYS & ASTRON,PISCATAWAY,NJ 08855

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.64.843

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the branching ratio (z0)(z00) to be [1.06±0. 12(stat)±0.11(syst)]×10-3. In 670 000 candidates we found 116+13 decays (background subtracted). These compare with 29 510 N 0 events reconstructed from the sample. Monte Carlo studies gave the relative acceptances for the two processes. The helicity of the yielded the product of asymmetry parameters =0.27±0.28, which implies ±(z)=0.43+0.44, where the uncertainty is all statistical. © 1990 The American Physical Society.

引用

页码：843 / 846

页数：4

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