The Higgs Mass as the Discriminator of Electroweak Models

Details The Higgs Mass as the Discriminator of Electroweak Models The Higgs Mass as the Discriminator of Electroweak Models

1994-08-18

arxiv.org/abs/hep-ph/9408319v1

Phys.Rev.Lett. 74 (1995) 2876-2879

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 2 figures, VAND-TH-94-17

Scientific paper

10.1103/PhysRevLett.74.2876

In the Minimal Supersymmetric Model (MSSM) and the Next to Minimal Supersymmetric Model [(M+1)SSM], an upper bound on the lightest higgs mass can be calculated. On the other hand, vacuum stability implies a lower limit on the mass of the higgs boson in the Standard Model (SM). We find that a gap exists for $m_t \stackrel{>}{\sim} 165$ GeV between the SM and both the MSSM and the (M+1)SSM bounds. Thus, if the new top quark mass measurement by CDF remains valid, a first measurement of the higgs mass will serve to exclude either the SM or the MSSM/(M+1)SSM higgs sectors. In addition, we discuss Supersymmetric Grand Unified Theories, other extentions of the SM, the discovery potential of the lightest higgs, and the assumptions on which our conclusions are based.

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