BS-]TAU+TAU- DECAY IN A 2-HIGGS-DOUBLET MODEL

被引：53

作者：

SKIBA, W ^{[1
]}

KALINOWSKI, J ^{[1
]}

机构：

[1] UNIV WARSAW,INST THEORET PHYS,PL-00681 WARSAW,POLAND

来源：

NUCLEAR PHYSICS B | 1993年 / 404卷 / 1-2期

关键词：

D O I：

10.1016/0550-3213(93)90470-A

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We analyse the decay B(s) --> tau+tau- in two-Higgs-doublet extensions of the standard model. We discuss the role of charged and neutral Higgs boson contributions. We find that in a general model with two Higgs doublets the branching ratio BR (B(s) --> tau+tau-) can be greater by a few orders of magnitude. The charged Higgs bosons give a dominant contribution for small tan beta whereas the neutral ones dominate at large tan beta. In a SUSY-like model the effect of the Higgs bosons is less important. An observation of BR(B(s) --> tau+tau-) greater-than-or-equal 10(-6) (for m(t) less-than-or-equal-to 150 GeV) would be a clear signal of new physics.

引用

页码：3 / 19

页数：17

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