Do electroweak precision data and Higgs-mass constraints rule out a scalar bottom quark with mass of O(5 GeV)?

Details Do electroweak precision data and Higgs-mass constraints rule out a scalar bottom quark with mass of O(5 GeV)? Do electroweak precision data and Higgs-mass constraints rule out a scalar bottom quark with mass of O(5 GeV)?

2000-08-03

arxiv.org/abs/hep-ph/0008023v2

Phys.Rev.Lett.86:4463-4466,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 2 figures, LateX. Discussion about fine tuning and low-energy experiments enlarged. Version to appear in Phys. Rev. L

Scientific paper

10.1103/PhysRevLett.86.4463

We investigate the phenomenological implications of a light scalar bottom quark, with a mass of about the bottom quark mass, within the minimal supersymmetric standard model. The study of such a scenario is of theoretical interest, since, depending on their production and decay modes, light sbottoms may have escaped experimental detection up to now and, in addition, may naturally appear for large values of \tan\beta. In this article we show that such a light sbottom cannot be ruled out by the constraints from the electroweak precision data and the present bound on the lightest CP-even Higgs boson mass at LEP. It is inferred that a light sbottom scenario requires in general a relatively light scalar top quark whose mass is typically about the top-quark mass. It is also shown that under these conditions the lightest CP-even Higgs boson decays predominantly into scalar bottom quarks in most of the parameter space and that its mass is restricted to m_h ~< 123 GeV.

Affiliated with

Also associated with

No associations

Rating

Do electroweak precision data and Higgs-mass constraints rule out a scalar bottom quark with mass of O(5 GeV)? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Do electroweak precision data and Higgs-mass constraints rule out a scalar bottom quark with mass of O(5 GeV)?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Do electroweak precision data and Higgs-mass constraints rule out a scalar bottom quark with mass of O(5 GeV)? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-344110