The Hunt for the Rest of the Higgs Bosons

Abstract

We assess the current state of searches at the LHC for additional Higgs bosons in light of both direct limits and indirect bounds coming from coupling measurements of the Standard Model-like Higgs boson. Given current constraints, we identify and study three LHC searches that are critical components of a comprehensive program to investigate extended electroweak symmetry breaking sectors: production of a heavy scalar or pseudoscalar with decay to $t\bar{t}$; $b\bar{b}$ and $t\bar{t}$ associated production of a heavy scalar or pseudoscalar with decay to invisible final states; and $t\bar{b}$ associated production of a charged Higgs with decay to $\bar{t}b$. Systematic experimental searches in these channels would contribute to robust coverage of the possible single production modes of additional heavy Higgs bosons.

44 pp., 23 fig

References in corpus (21)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Parton distributions for the LHC
• Observation of the diphoton decay of the Higgs boson and measurement of its properties
• SusHi: A program for the calculation of Higgs production in gluon fusion and bottom-quark annihilation in the Standard Model and the MSSM
• Measurement of Higgs boson production in the diphoton decay channel in $pp$ collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
• Scalar Simplified Models for Dark Matter
• Search for neutral MSSM Higgs bosons decaying to a pair of tau leptons in pp collisions
• Search for Scalar Diphoton Resonances in the Mass Range $65-600$ GeV with the ATLAS Detector in $pp$ Collision Data at $\sqrt{s}$ = 8 $TeV$
• Search for the $b\bar{b}$ decay of the Standard Model Higgs boson in associated $(W/Z)H$ production with the ATLAS detector
• Search for neutral Higgs bosons of the minimal supersymmetric standard model in pp collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Search for the Standard Model Higgs boson in the decay channel H->ZZ(*)->4l with 4.8 fb-1 of pp collision data at sqrt(s) = 7 TeV with ATLAS
• Blind Spots for neutralino Dark Matter in the MSSM with an intermediate m_A
• Fingerprinting non-minimal Higgs sectors
• Constraints on and future prospects for Two-Higgs-Doublet Models in light of the LHC Higgs signal
• Search for dark matter in events with heavy quarks and missing transverse momentum in $pp$ collisions with the ATLAS detector
• Searches for heavy Higgs bosons in two-Higgs-doublet models and for t to ch decay using multilepton and diphoton final states in pp collisions at 8 TeV
• Search for a 'stable alignment limit' in two Higgs-doublet models
• Erratum: Bounds on Invisible Higgs boson Decays from $t\bar{t}H$ Production
• Searching for Charged Higgs Boson in Polarized Top Quark
• Determination of charged Higgs couplings at the LHC
• On Extra Neutral and Charged Higgs bosons at the LHC