Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-06-30
Phys.Rev. D71 (2005) 035006
Physics
High Energy Physics
High Energy Physics - Phenomenology
24 pages; uses RevTeX
Scientific paper
10.1103/PhysRevD.71.035006
We study the implications for the minimal supersymmetric standard model (MSSM) of the absence of a direct discovery of a Higgs boson at LEP. First we exhibit 15 physically different ways in which one or more Higgs bosons lighter than the LEP limit could still exist. For each of these cases -- as well as the case that the lightest Higgs eigenstate is at, or slightly above, the current LEP limit -- we provide explicit sample configurations of the Higgs sector as well as the soft supersymmetry breaking Lagrangian parameters necessary to generate these outcomes. We argue that all of the cases seem fine-tuned, with the least fine-tuned outcome being that with Higgs mass near 115 GeV. Seeking to minimize this tuning we investigate ways in which the ``maximal-mixing'' scenario with large top-quark trilinear A-term can be obtained from simple string-inspired supergravity models. We find these obvious approaches lead to heavy gauginos and/or problematic low-energy phenomenology with minimal improvement in fine-tuning.
;
Kane Gordon L.
Nelson Brent D.
Wang Lian-Tao
Wang Ting T.
No associations
LandOfFree
Theoretical Implications of the LEP Higgs Search 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 Theoretical Implications of the LEP Higgs Search, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theoretical Implications of the LEP Higgs Search will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-59921