Rare kaon decays with ''missing energy''

被引：96

作者：

Marciano, WJ ^{[1
]}

Parsa, Z ^{[1
]}

机构：

[1] UNIV WASHINGTON,NATL INST NUCL THEORY,SEATTLE,WA 98195

来源：

PHYSICAL REVIEW D | 1996年 / 53卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.53.R1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Rare kaon decays due to the loop-induced standard model operator (s) over bar(L) gamma(mu)d(L)<(nu)over bar>(L) gamma(mu)nu(L) are examined. Isospin-violating mass effects and electroweak radiative corrections are shown to reduce B(K+ --> pi(+)nu<(nu)over bar> and B(K-L --> pi(0) nu<(nu)over bar>) relative to B(K+ --> pi(0)e(+)nu(e)) by 10% and 5.6%, respectively. Predicted branching ratios for (K-L --> nu<(nu)over bar>gamma) and (K-L --> nu<(nu)over bar>) (if neutrinos have mass) are given. The sensitivity of ''missing energy'' rare K decays to new interactions or the emission of light weakly interacting neutral particles, other than neutrinos, is also briefly discussed.

引用

页码：R1 / R5

页数：5

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