Implications on the supersymmetric Higgs sector from top quark decays at the Tevatron

被引：21

作者：

Guasch, J ^{[1
]}

Sola, J

机构：

[1] Univ Autonoma Barcelona, Fis Teor Grp, E-08193 Barcelona, Spain

[2] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

来源：

PHYSICS LETTERS B | 1998年 / 416卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(97)01247-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

From the tau-lepton analysis of the charged Higgs decay of the top quark at the Tevatron, t --> H(+)b --> tau(+) nu(tau) b, it is possible to set rather stringent bounds on the (tan beta,MH+/-)-plane, if one assumes that H+/- is a charged member of a generic two-Higgs-doublet model. However, if we consider the possibility that H+/- is supersymmetric, then we find that the allowed region in the (tan beta,MH+/-)-plane can be significantly modified by the MSSM quantum corrections. Throughout our analysis we correlate the top quark results with the limits imposed by radiative and semileptonic B-meson decays. Remarkably, one can envision situations in the MSSM parameter space where H+/- completely eludes those bounds, i.e. a charged Higgs with a mass below the top quark mass could coexist with essentially any value of tan beta. (C) 1998 Elsevier Science B.V.

引用

页码：353 / 360

页数：8

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