Study of K+ → π0e+veγ vey decay with OKA setup

被引：0

作者：

Polyarush, A. Yu. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Nucl Res, Moscow, Russia

来源：

XXTH INTERNATIONAL SEMINAR ON HIGH ENERGY PHYSICS (QUARKS-2018) | 2018年 / 191卷

关键词：

D O I：

10.1051/epjconf/201819102014

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Results of study of the K+ -> pi(0)e+ nu gamma decay at OKA setup are presented. 16889 events of this decay have been observed. The branching ratio with cuts K-y* > 10 MeV, 0.6 < cos Theta*(e gamma) < 0.9 is calculated R = Br(K+ ->pi(0)e(+)ve gamma)/Br(K+ ->pi(0)e+ve)) = (0.574 +/- 0.010(stat.) +/- 0.021(syst.))x 10(-2). For the asymmetry A(xi) we get A(xi) = -0.009 +/- 0.012(stat.)

引用

页数：5

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