Phenomenology and Theory of Possible Light Higgs Bosons

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We study the implications 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. In the minimal supersymmetric standard model (MSSM) all of these, as well as the cases where the Higgs mass equals or exceeds 115 GeV, seem fine-tuned. We examine some interpretations of the fine tuning in high scale theories. The least fine-tuned MSSM outcome will have a Higgs mass at 115 GeV, while approaches that extend the MSSM at the weak scale can naturally have larger Higgs masses.
Uses RevTeX; references added

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High Energy Physics - Phenomenology, High Energy Physics - Experiment, High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/42401

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/0304134
 http://arxiv.org/abs/hep-ph/0304134

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arXiv