Inert Doublet Dark Matter and Mirror/Extra Families after Xenon100

Abstract

It was shown recently that mirror fermions, naturally present in a number of directions for new physics, seem to require an inert scalar doublet in order to pass the electroweak precision tests. This provides a further motivation for considering the inert doublet as a dark matter candidate. Moreover, the presence of extra families enhances the Standard Model Higgs-nucleon coupling, which has crucial impact on the Higgs and dark matter searches. We study the limits on the inert dark matter mass in view of recent Xenon100 data. We find that the mass of the inert dark matter must lie in a very narrow window 74-76 GeV while the Higgs must weigh more than 400 GeV. For the sake of completeness we discuss the cases with fewer extra families, where the possibility of a light Higgs boson opens up, enlarging the dark matter mass window to m_h/2-76 GeV. We find that Xenon100 constrains the DM-Higgs interaction, which in turn implies a lower bound on the monochromatic gamma-ray flux from DM annihilation in the galactic halo. For the mirror case, the predicted annihilation cross section lies a factor of 4-5 below the current limit set by Fermi LAT, thus providing a promising indirect detection signal.

10 pages, 7 figures; reference added

References in corpus (15)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model
• The oblique parameters in multi-Higgs-doublet models
• Hadronic Uncertainties in the Elastic Scattering of Supersymmetric Dark Matter
• Observing the Dark Scalar Doublet and its Impact on the Standard-Model Higgs Boson at Colliders
• WIMP dark matter, Higgs exchange and DAMA
• The Inert Dark Matter
• Probing seesaw at LHC
• A new viable region of the inert doublet model
• A model of electroweak-scale right-handed neutrino mass
• Long Lived Fourth Generation and the Higgs
• The Tevatron Higgs exclusion limits and theoretical uncertainties: a critical appraisal
• Fourth Generation Bound States
• Three Extra Mirror or Sequential Families: a Case for Heavy Higgs and Inert Doublet

Cited by in corpus (23)

• Theory and phenomenology of two-Higgs-doublet models
• Implications of LHC searches for Higgs--portal dark matter
• Electroweak baryogenesis and dark matter from a singlet Higgs
• Dark Matter through the Higgs portal
• An Updated Analysis of Inert Higgs Doublet Model in light of the Recent Results from LUX, PLANCK, AMS-02 and LHC
• h\to γγIn Inert Higgs Doublet Model
• Physics at the e+ e- Linear Collider
• Inert Doublet Dark Matter with Strong Electroweak Phase Transition
• Dark Matter as the Trigger of Strong Electroweak Phase Transition
• Electroweak corrections to the direct detection cross section of inert higgs dark matter
• Two Component Dark Matter : A Possible Explanation of 130 GeV γ-Ray Line from the Galactic Centre
• Scalar Representations in the Light of Electroweak Phase Transition and Cold Dark Matter Phenomenology
• Comprehensive asymmetric dark matter model
• Confronting Galactic and Extragalactic $\gamma$-ray observed by Fermi-LAT with Annihilating Dark Matter in Inert Higgs Doublet Model
• Tree-level vacuum stability of two-Higgs-doublet models and new constraints on the scalar potential
• One-loop radiative corrections to $e^{+}{e}^{-}\to Z{h}^0/H^0{A}^0$ in the Inert Higgs Doublet Model
• Large mass splittings for fourth generation fermions allowed by LHC Higgs exclusion
• Revisiting one-loop corrections to the trilinear Higgs boson self-coupling in the Inert Doublet Model
• The Sommerfeld Enhancement in the Scotogenic Model with Large Electroweak Scalar Multiplets
• Invisible Higgs and Scalar Dark Matter
• The Need for New Search Strategies for Fourth Generation Quarks at the LHC
• Full one-loop radiative corrections to $e^{+}{e}^{-}\to H^{+}{H}^{-}$ in the inert doublet model
• Generation of scale invariant density perturbations in a conformally invariant Inert Higgs doublet model