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@ARTICLE{Arina:187396,
author = {Arina, Chiara and Martín-Lozano, Víctor and Nardini,
Germano},
title = {{D}ark matter versus $h → γγ$ and $h → γ{Z}$ with
supersymmetric triplets},
journal = {Journal of high energy physics},
volume = {2014},
number = {8},
issn = {1029-8479},
address = {Berlin},
publisher = {Springer},
reportid = {PUBDB-2014-03891, DESY-14-039},
pages = {15},
year = {2014},
note = {OA},
abstract = {The Triplet extension of the MSSM (TMSSM) alleviates the
little hierarchy problem and provides a significant
enhancement of the loop-induced diphoton rate of the
lightest CP-even Higgs h. In this paper we pursue the
analysis of the TMSSM Higgs phenomenology by computing for
the first time the h into Z + gamma decay. Interestingly we
find that the rates of loop-induced decays are correlated
and their signal strengths can rise up to $40\%$ - $60\%$
depending on the channel. We furthermore study the dark
matter phenomenology of the TMSSM. The lightest neutralino
is a good dark matter candidate in two regions. The first
one is related to the Higgs and Z resonances and the LSP is
mostly Bino. The second one is achieved for a mass larger
than 90 GeV and the LSP behaves as the well-tempered
neutralino. An advantage of the triplet contribution is that
the well-tempered neutralino can be a Bino-Triplino mixture,
relieving the problem of achieving $M_2$ ~ $M_1$ in unified
scenarios. The dark matter constraints strongly affect the
Higgs phenomenology, reducing the potential enhancements of
the diphoton and of the Z + photon channels by $20\%$ at
most. These enhancements are however larger than the MSSM
ones. In the near future, complementarity of dark matter
direct searches and collider experiments will be crucial to
probe most of the parameter space where the neutralino is
the dark matter candidate.},
keywords = {dark matter (INSPIRE) / neutralino (INSPIRE) / triplet
(INSPIRE) / minimal supersymmetric standard model (INSPIRE)
/ two-photon (INSPIRE) / LSP (INSPIRE) / photon photon
(INSPIRE) / supersymmetry (INSPIRE) / enhancement (INSPIRE)
/ hierarchy (INSPIRE) / photon (INSPIRE) / bino (INSPIRE)},
cin = {T},
ddc = {530},
cid = {I:(DE-H253)T-20120731},
pnm = {514 - Theoretical Particle Physics (POF2-514) / DARK - Dark
Matters (267117) / SPLE - String Phenomenology in the LHC
Era (320421)},
pid = {G:(DE-HGF)POF2-514 / G:(EU-Grant)267117 /
G:(EU-Grant)320421},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)29 / PUB:(DE-HGF)16},
UT = {WOS:000347888000007},
doi = {10.1007/JHEP08(2014)015},
url = {https://bib-pubdb1.desy.de/record/187396},
}