MEASUREMENT OF THE BRANCHING RATIO AND FORM-FACTOR FOR KL-]E+E-GAMMA

被引：45

作者：

OHL, KE

ADAIR, RK

GREENLEE, HB

KASHA, H

MANNELLI, EB

SCHMIDT, MP

VAGINS, MR

JASTRZEMBSKI, E

LARSEN, RC

LEIPUNER, LB

MORSE, WM

SCHWARZ, CB

机构：

[1] BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973

[2] VASSAR COLL,DEPT PHYS & ASTRON,POUGHKEEPSIE,NY 12601

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.65.1407

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on measurements of the KL Dalitz decay KLe+e-. The results are based on a sample of 919 events. Through an evaluation of the form factor, we have established evidence for a nonvanishing contribution due to the KK* coupling. We have determined the branching ratio to be B(KLe+e-)=(9.1±0. 4-0.5+0.6)×10-6. © 1990 The American Physical Society.

引用

页码：1407 / 1410

页数：4

共 8 条

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