Heavy WIMP through Higgs portal at the LHC

Abstract

LHC constraints on Higgs-portal WIMPs are studied. Scalar, vector and anti-symmetric tensor fields are considered. They are assumed to be heavier than a half of the Higgs boson mass. We investigate 8 TeV LHC results on signatures of the vector boson fusion, mono-jet and associated production of the $Z$ boson, which proceed via virtual exchange of the Higgs boson. We show that Higgs-portal interactions of the vector and tensor WIMPs are constrained to be less than 0.43 and 0.16, respectively, while those for the scalar are very weak. Prospects of the 14 TeV LHC are also discussed.

14 pages, 3 figures

References in corpus (6)

• Parton distributions for the LHC
• Gauge Singlet Scalars as Cold Dark Matter
• Search for invisible decays of Higgs bosons in the vector boson fusion and associated ZH production modes
• Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at $\sqrt{s}$=8 TeV with the ATLAS detector
• Invisible Higgs Decay Width vs. Dark Matter Direct Detection Cross Section in Higgs Portal Dark Matter Models
• Dark Matter Stability without New Symmetries

Cited by in corpus (6)

• The Higgs Portal to Cosmology
• Electroweak vacuum stability in presence of singlet scalar dark matter in TeV scale seesaw models
• Improved bounds on ${\mathbb{Z}}_3$ singlet dark matter
• The Higgs Portal Above Threshold
• Thick Branes in Extra Dimensions and Suppressed Dark Couplings
• Probing Higgs portals with matrix-element based kinematic discriminants in $ZZ\to 4\ell$ production