Does LEP prefer the NMSSM?

Details Does LEP prefer the NMSSM? Does LEP prefer the NMSSM?

2000-06-16

arxiv.org/abs/hep-ph/0006198v3

Phys.Lett. B489 (2000) 359-366

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, Latex, 3 eps figures, typos corrected, reference added

Scientific paper

10.1016/S0370-2693(00)00930-8

We study the naturalness of electroweak symmetry breaking and baryogenesis in the next-to-minimal supersymmetric standard model (NMSSM). Our study is motivated by the recent LEP bounds on the Higgs boson mass which severely constrains the low \tan\beta region of the minimal supersymmetric standard model (MSSM). We show that the low \tan \beta region of the NMSSM is clearly favoured over the MSSM with regard to the physical Higgs boson mass, fine-tuning, and electroweak baryogenesis.

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