Higgs Bosons Near 125 GeV in the NMSSM with Constraints at the GUT Scale | Zendy

Ulrich Ellwanger | Zendy; Cyril Hugonie | Zendy

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Higgs Bosons Near 125 GeV in the NMSSM with Constraints at the GUT Scale

Author(s) -

Ulrich Ellwanger,

Cyril Hugonie

Publication year - 2012

Publication title -

advances in high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.59

H-Index - 49

eISSN - 1687-7365

pISSN - 1687-7357

DOI - 10.1155/2012/625389

Subject(s) - higgs boson , algorithm , yukawa potential , physics , database , particle physics , computer science

We study the NMSSM with universal Susy breaking terms (besides the Higgssector) at the GUT scale. Within this constrained parameter space, it is not difficultto find a Higgs boson with a mass of about 125 GeV and an enhanced cross-section inthe diphoton channel. An additional lighter Higgs boson with reduced couplings and amass ≲ 123 GeV is potentially observable at the LHC. The NMSSM-specific Yukawacouplings λ and κ are relatively large and tan β is small, such that λ, κ, and the topYukawa coupling are of (1) at the GUT scale. The lightest stop can be as lightas 105 GeV, and the fine-tuning is modest. WMAP constraints can be satisfied bya dominantly Higgsino-like LSP with substantial bino, wino, and singlino admixturesand a mass of ~60–90 GeV, which would potentially be detectable by XENON100

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