ENHANCED CHARGED-HIGGS-BOSON EFFECTS IN B--]TAU(NU)OVER-BAR, MU(NU)OVER-BAR AND B-]TAU(NU)OVER-BAR PLUS X

被引：299

作者：

HOU, WS

机构：

来源：

PHYSICAL REVIEW D | 1993年 / 48卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.48.2342

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Charged Higgs boson effects are not helicity suppressed in the decays B- --> taunuBAR, munuBAR, and enuBAR, and could enhance or suppress these modes without violating lepton universality. The present limit of B(B- --> munuBAR) < 2.0 X 10(-5) is more stringent than the measurement B(b --> taunuBAR + X) = (4.20(+0.72/-0.68) +/- 0.46)%, while a factor of 2 improvement in the present limit of B (B- --> taunuBAR) < 1. 2% would be comparable. There is much room for discovery as one pushes the latter limit down to the standard model expectation of order 10(-4). A value below this may be explained without requiring f(B)\V(ub)\ to be unduly small.

引用

页码：2342 / 2344

页数：3

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