Four Generations, Higgs Physics, and the MSSM

Details Four Generations, Higgs Physics, and the MSSM Four Generations, Higgs Physics, and the MSSM

2010-09-06

arxiv.org/abs/1009.1099v2

Phys.Rev.D82:073017,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

References added and minor typographical errors corrected

Scientific paper

10.1103/PhysRevD.82.073017

We consider the effects of a fourth generation of chiral fermions within the MSSM. Such a model offers the possibility of having the lightest neutral Higgs boson significantly heavier than in the three generation MSSM. The model is highly constrained by precision electroweak data, along with Higgs searches at the Tevatron. In addition, the requirements of perturbative unitarity and direct searches for heavy quarks imply that the four generation MSSM is only consistent for tan beta ~ 1 and highly tuned 4th generation fermion masses.

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