Higgs Mixing in the NMSSM and Light Higgsinos - INSPIRE

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Higgs Mixing in the NMSSM and Light Higgsinos

Kwang Sik Jeong
(
- DESY and
- IBS, Daejeon
)
,
Yutaro Shoji
(
- Tohoku U.
)
,
Masahiro Yamaguchi
(
- Tohoku U.
)

Jul 3, 2014

26 pages

Published in:

JHEP 11 (2014) 148

Published: Nov 25, 2014

e-Print:

1407.0955 [hep-ph]

DOI:

10.1007/JHEP11(2014)148

Report number:

DESY-14-103,
TU-974,
CTPU-14-10

View in:

ADS Abstract Service

reference search18 citations

Citations per year

Abstract: (Springer)

We explore the effects of Higgs mixing in the general next-to-minimal supersymmetric Standard Model (NMSSM). Extended to include a gauge singlet, the Higgs sector can naturally explain the observed Higgs boson mass in TeV scale supersymmetry without invoking large stop mixing. This is particularly the case when the singlet scalar is light so that singlet-doublet mixing increases the mass of the SM-like Higgs boson. In such a case the Higgs mixing has interesting implications following from the fact that the higgsino mass parameter and the singlet coupling to Higgs bilinear crucially depend on the Higgs boson masses and mixing angles. For the mixing compatible with the current LHC data on the Higgs signal rates, the higgsinos are required to be relatively light, around or below a few hundred GeV, as long as the heavy doublet Higgs boson has a mass smaller than about

250\sqrt{ \tan \beta }

GeV and the singlet-like Higgs boson is consistent with the LEP constraint. In addition, the Higgs coupling to photons can receive a sizable contribution of either sign from the charged-higgsino loops combined with singlet-doublet mixing.

Note:

26 pages, 5 figures, Higgs data updated, discussion extended, typos fixed, to appear in JHEP

Supersymmetry Phenomenology
minimal supersymmetric standard model
Higgs particle: mixing
Higgs particle: mass
Higgs particle: singlet
coupling: Higgs
stop: mixing
Higgsino: mass
CERN LHC Coll
CERN LEP Stor

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Figures(14)

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