CMS sets 95% CL upper limits on σ(X)B(X→ZZ) (300 pb–24 fb) and σ(Z')B(Z'→ZH) (0.4 pb–12 fb) for resonances up to 6 TeV in the bbττ channel with no SM deviation observed.
A Minimal Spontaneously Broken Hidden Sector and its Impact on Higgs Boson Physics at the Large Hadron Collider
6 Pith papers cite this work, alongside 335 external citations. Polarity classification is still indexing.
6
Pith papers citing it
335
external citations · Pith
abstract
Little experimental data bears on the question of whether there is a spontaneously broken hidden sector that has no Standard Model quantum numbers. Here we discuss the prospects of finding evidence for such a hidden sector through renormalizable interactions of the Standard Model Higgs boson with a Higgs boson of the hidden sector. We find that the lightest Higgs boson in this scenario has smaller rates in standard detection channels, and it can have a sizeable invisible final state branching fraction. Details of the hidden sector determine whether the overall width of the lightest state is smaller or larger than the Standard Model width. We compute observable rates, total widths and invisible decay branching fractions within the general framework. We also introduce the ``A-Higgs Model'', which corresponds to the limit of a hidden sector Higgs boson weakly mixing with the Standard Model Higgs boson. This model has only one free parameter in addition to the mass of the light Higgs state and it illustrates most of the generic phenomenology issues, thereby enabling it to be a good benchmark theory for collider searches. We end by presenting an analogous supersymmetry model with similar phenomenology, which involves hidden sector Higgs bosons interacting with MSSM Higgs bosons through D-terms.
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Develops a statistical framework to constrain multiple kinetically mixed dark photons using standard experimental probes and distributions for mixing parameters.
In a dark-photon-mediated Dirac fermionic DM model, only narrow resonant regions with small dark-sector coupling allow the candidate to saturate the full relic density while evading current direct and indirect detection bounds.
A multiverse cosmological selection mechanism in an SM extension with scalar singlet and RH neutrinos under B-L dynamically fixes the EW scale while addressing neutrino masses, leptogenesis, and dark matter.
Search for H->aa->4tau (4<m_a<15 GeV) with boosted di-tau reconstruction finds no excess and sets 95% CL upper limits of 0.03-0.10 on (sigma_H/sigma_SM)*BR(H->aa->4tau).
Requiring exotic Higgs decays to two or three light singlet scalars not to exceed the SM Higgs width yields cos θ < 0.12-0.13 for m_φ < 40 GeV, with predicted rate limits Γ(h→φφ) < 0.06 MeV and Γ(h→φφφ) < 5×10^{-6} MeV under stronger mixing bounds.
citing papers explorer
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Study of ZZ and ZH production in the bb$\tau\tau$ final state and search for high-mass spin-0 and spin-1 resonances in proton-proton collisions at $\sqrt{s}$ = 13 TeV
CMS sets 95% CL upper limits on σ(X)B(X→ZZ) (300 pb–24 fb) and σ(Z')B(Z'→ZH) (0.4 pb–12 fb) for resonances up to 6 TeV in the bbττ channel with no SM deviation observed.
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Constraining Multiple Kinetically Mixed Dark Photons
Develops a statistical framework to constrain multiple kinetically mixed dark photons using standard experimental probes and distributions for mixing parameters.
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GeV-scale thermal dark matter from dark photons: tightly constrained, yet allowed
In a dark-photon-mediated Dirac fermionic DM model, only narrow resonant regions with small dark-sector coupling allow the candidate to saturate the full relic density while evading current direct and indirect detection bounds.
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Linking the Gauge Hierarchy with Neutrino Masses and Dark Matter via Two-step Cosmological Selection
A multiverse cosmological selection mechanism in an SM extension with scalar singlet and RH neutrinos under B-L dynamically fixes the EW scale while addressing neutrino masses, leptogenesis, and dark matter.
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Search for Higgs boson exotic decays into Lorentz-boosted light bosons in the four-$\tau$ final state at $\sqrt{s}=13$ TeV with the ATLAS detector
Search for H->aa->4tau (4<m_a<15 GeV) with boosted di-tau reconstruction finds no excess and sets 95% CL upper limits of 0.03-0.10 on (sigma_H/sigma_SM)*BR(H->aa->4tau).
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Constraints on a Light Singlet Scalar from Combined Exotic Higgs Decays
Requiring exotic Higgs decays to two or three light singlet scalars not to exceed the SM Higgs width yields cos θ < 0.12-0.13 for m_φ < 40 GeV, with predicted rate limits Γ(h→φφ) < 0.06 MeV and Γ(h→φφφ) < 5×10^{-6} MeV under stronger mixing bounds.