The rare decay K+→π+-ν(ν)over-bar and effects of charged technipions

被引：0

作者：

Xiao, ZJ ^{[1
]}

Zhang, JY

Lü, LX

Guo, HK

Lu, GR

机构：

[1] Henan Normal Univ, Dept Phys, Xinxiang 453002, Peoples R China

[2] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[3] Rutherford Appleton Lab, Didcot, Oxon, England

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 1999年 / 32卷 / 02期

关键词：

rare FCNC decay; charged technipion; branching ratio;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper we calculate the contributions to the FCNC rare decay K+ --> pi(+)<nu(nu)over bar> from the charged technipion P+/- and P-8(+/-) in the framework of technicolor theory. We find that: (a) P+/- can provide a positive but relatively small contribution to the K+ --> pi(+)<nu(nu)over bar> process; (b) the contribution is large and positive for relatively light P-8(+/-) and becomes negative for m(p8) greater than or equal to 531 GeV; (c) the enhancement to the ratio BR(K+ --> pi(+)<nu(nu)over bar>) can be as large as a factor of 30 for m(p1) = 50 GeV and m(p8) = 100 GeV; (d) the lower mass bound on m(p8) is m(p8) > 220, 190 GeV for m(p1) = 50, 200 GeV, respectively.

引用

页码：287 / 292

页数：6

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