Electroweak precision data constrain neutrinophilic scalar couplings to neutrinos via charged-current corrections, with the result holding in a UV-complete model for wide parameter ranges.
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abstract
The contribution to precision electroweak measurements due to TeV physics which couples primarily to the $W^\pm$ and $Z$ bosons may be parameterized in terms of the three `oblique correction' parameters, S, T and U. We extend this parameterization to physics at much lower energies, $\ge 100$ GeV, and show that in this more general case three more parameters are required (which we call V, W and X). Only two of these appear in neutral-current experiments, while the third new parameter enters into the $W^\pm$ width.
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Future electroweak precision measurements can probe light higgsinos up to 500 GeV even in compressed spectra below the neutrino fog, complementing direct detection which reaches the 1 TeV thermal relic mass.
No significant excess found; new exclusion limits reach m_H = 108 GeV for m_H - m_A = 78 GeV in the Inert Doublet Model.
S, T, U parameters are redefined for the B-LSSM using pinch technique contributions to gauge boson self-energies and expressed as functions of B-LSSM parameters, with experimental constraints applied.
Fermi LAT data on mini-spikes around stellar-mass black holes rules out substantial regions of Inert Doublet Model dark matter parameter space, especially at multi-TeV masses.
citing papers explorer
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Precision Electroweak Constraints on Neutrinophilic Scalars
Electroweak precision data constrain neutrinophilic scalar couplings to neutrinos via charged-current corrections, with the result holding in a UV-complete model for wide parameter ranges.
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Complementary Probes of Light Higgsinos: Electroweak Precision Measurements and Dark Matter Direct Detection
Future electroweak precision measurements can probe light higgsinos up to 500 GeV even in compressed spectra below the neutrino fog, complementing direct detection which reaches the 1 TeV thermal relic mass.
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Search for pair production of additional neutral scalars within the Inert Doublet Model in a final state with two electrons or two muons in proton-proton collisions at $\sqrt{s}$ = 13 TeV and 13.6 TeV
No significant excess found; new exclusion limits reach m_H = 108 GeV for m_H - m_A = 78 GeV in the Inert Doublet Model.
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$S, T, U$ Parameters in The B-LSSM
S, T, U parameters are redefined for the B-LSSM using pinch technique contributions to gauge boson self-energies and expressed as functions of B-LSSM parameters, with experimental constraints applied.
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Probing the Inert Doublet Dark Matter with Stellar-Mass Black Hole Mini-Spikes
Fermi LAT data on mini-spikes around stellar-mass black holes rules out substantial regions of Inert Doublet Model dark matter parameter space, especially at multi-TeV masses.