Multilepton Higgs Decays through the Dark Portal

Abstract

The U(1)_D gauge sector containing one dark Higgs boson h_D and one dark photon γ_D may be explored through the decays of the 126 GeV particle discovered at the Large Hadron Collider (LHC), assumed here as the heavier mass eigenstate h_1 in the mixing of the standard model h with h_D. The various decays of h_1 to γ_D γ_D, h_2 h_2, h_2 γ_D γ_D and h_2 h_2 h_2 would yield multilepton final states through the mixing of γ_D with the photon and the decay h_2 \to γ_D γ_D, where h_2 is the lighter dark Higgs. Future searches for signals of multilepton jets at the LHC may reveal the existence of this possible dark sector governed simply by the original Abelian Higgs model.

20 pages, 9 figures, 2 tables. New section added for signals of multilepton jets at the LHC-14

References in corpus (10)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Observation of an anomalous positron abundance in the cosmic radiation
• FeynRules - Feynman rules made easy
• Measurement of the Cosmic Ray e+ plus e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope
• Global fit to Higgs signal strengths and couplings and implications for extended Higgs sectors
• Phenomenology of a very light scalar (100 MeV $<m_h<$ 10 GeV) mixing with the SM Higgs
• Higgs boson decays to four fermions through an abelian hidden sector
• Search for anomalous production of multilepton events in pp collisions at sqrt(s) = 7 TeV
• Discovering Higgs Decays to Lepton Jets at Hadron Colliders

Cited by in corpus (17)

• Illuminating Dark Photons with High-Energy Colliders
• Exotic Decays of the 125 GeV Higgs Boson
• Radiative Neutrino Mass with Scotogenic Scalar Triplet
• A New Probe of Dark Sector Dynamics at the LHC
• 17 MeV Atomki anomaly from short-distance structure of spacetime
• First order electroweak phase transition triggered by the Higgs portal vector dark matter
• Uncovering light scalars with exotic Higgs decays to bbmumu
• Dark sector impact on gravitational collapse of an electrically charged scalar field
• A general holographic insulator/superconductor model away from the probe limit
• Detecting multimuon jets from the Higgs exotic decays in the Higgs portal framework
• The Platinum Channel: Higgs Decays to as many as 8 Leptons
• Pseudo-Majoron as Light Mediator of Singlet Scalar Dark Matter
• Dark Photon as Fractional Cosmic Neutrino Masquerader
• Higgs Portal to Dark QED
• Constraining portals with displaced Higgs decay searches at the LHC
• Dark matter cosmic string in the gravitational field of a black hole
• Illuminating long-lived dark vector bosons via exotic Higgs decays at $\sqrt{s}=13\text{TeV}$