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Title: Closing in on singlet scalar dark matter: LUX, invisible Higgs decays and gamma-ray lines

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3]
  1. Chinese Academy of Sciences, Nanjing (China)
  2. Univ. of California, Santa Cruz, CA (United States)
  3. Tel-Aviv Univ., Tel-Aviv (Israel)

Here, we study the implications of the Higgs discovery and of recent results from dark matter searches on real singlet scalar dark matter. The phenomenology of the model is defined by only two parameters, the singlet scalar mass m S and the quartic coupling a 2 between the SU(2) Higgs and the singlet scalar. We concentrate on the window 5 < m S /GeV < 300. The most dramatic impact on the viable parameter space of the model comes from direct dark matter searches with LUX, and, for very low masses in the few GeV range, from constraints from the invisible decay width of the Higgs. In the resonant region the best constraints come from gamma-ray line searches. We show that they leave only a small region of viable parameter space, for dark matter masses within a few percent of half the mass of the Higgs. We demonstrate that direct and indirect dark matter searches (especially the search for monochromatic gamma-ray lines) will play a key role in closing the residual parameter space in the near future.

Research Organization:
Univ. of California, Santa Cruz, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0010107
OSTI ID:
1444076
Journal Information:
Journal of High Energy Physics (Online), Vol. 2015, Issue 3; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 98 works
Citation information provided by
Web of Science

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Cited By (42)

Multipartite dark matter with scalars, fermions and signatures at LHC journal February 2019
Scalar dark matter: real vs complex journal March 2017
Improved bounds on ℤ3 singlet dark matter journal March 2019
Probing Higgs-portal dark matter with vector-boson fusion journal March 2020
Naturally small Dirac neutrino mass with intermediate SU(2) L multiplet fields journal April 2017
Gamma-ray excess and the minimal dark matter model journal June 2016
Scalar dark matter: direct vs. indirect detection journal June 2016
O 1 $$ \mathcal{O}(1) $$ GeV dark matter in SUSY and a very light pseudoscalar at the LHC journal July 2015
Collider and dark matter searches in the inert doublet model from Peccei-Quinn symmetry journal October 2016
Strongly first-order phase transition in real singlet scalar dark matter model journal December 2019
WIMP dark matter and unitarity-conserving inflation via a gauge singlet scalar journal November 2015
Scalar dark matter in the B − L model journal December 2015
2 SIMP dark matter journal January 2016
A global fit of the γ-ray galactic center excess within the scalar singlet Higgs portal model journal June 2016
Particle Dark Matter constraints: the effect of Galactic uncertainties journal February 2017
Gravitational wave signals of electroweak phase transition triggered by dark matter journal September 2017
Reviving Z and Higgs mediated dark matter models in matter dominated freeze-out journal January 2020
Probing the symmetric Higgs portal with di-Higgs boson production journal November 2019
Transformative A 4 mixing of neutrinos with C P violation journal September 2015
Light scalar dark matter extension of the type-II two-Higgs-doublet model journal August 2018
Status of the scalar singlet dark matter model journal August 2017
Impact of vacuum stability, perturbativity and XENON1T on global fits of $$\mathbb {Z}_2$$ Z 2 and $$\mathbb {Z}_3$$ Z 3 scalar singlet dark matter journal October 2018
Scalar singlet dark matter in non-standard cosmologies journal January 2019
Vacuum stability conditions of the economical $$3-3-1$$ 3 - 3 - 1 model from copositivity journal April 2019
Direct signals from electroweak singlets through the Higgs portal journal December 2018
An Introduction to Particle Dark Matter journal October 2019
A global fit of the γ-ray galactic center excess within the scalar singlet Higgs portal model text January 2016
Probing Higgs-portal dark matter with vector-boson fusion text January 2020
Gamma-ray excess and the minimal dark matter model text January 2016
Status of the scalar singlet dark matter model text January 2017
Status of the scalar singlet dark matter model text January 2017
Scalar dark matter in the B-L model text January 2015
Scalar Dark Matter: Direct vs. Indirect Detection text January 2015
Gamma-Ray Excess and the Minimal Dark Matter Model text January 2015
$Z_2$ SIMP Dark Matter text January 2015
Scalar Dark Matter: Real vs Complex text January 2016
Gravitational Wave Signals of Electroweak Phase Transition Triggered by Dark Matter text January 2017
Status of the scalar singlet dark matter model text January 2017
Direct signals from electroweak singlets through the Higgs portal text January 2018
A Simultaneous Study of Dark Matter and Phase Transition: Two-Scalar Scenario text January 2019
Probing the Symmetric Higgs Portal with Di-Higgs Boson Production text January 2019
An Introduction to Particle Dark Matter preprint January 2019

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