Leptophilic Portals to New Physics at Colliders

Abstract

Observed neutrino oscillations imply that the global lepton flavor symmetry of the Standard Model must be broken. Therefore, searches for lepton flavor violation (LFV) are promising probes of new physics beyond the Standard Model. High-energy colliders provide a powerful tool to study LFV effects, which are complementary to the low-energy charged LFV searches. Here we discuss the possibility of LFV signals at colliders arising from exotic Higgs decays, and from leptophilic scalar and vector portal scenarios.

6 pages, 3 figures; Contribution to the Proceedings of the 17th International Workshop on Tau Lepton Physics (TAU2023)

References in corpus (26)

• The Physics of Heavy Z' Gauge Bosons
• Leading hadronic contribution to the muon magnetic moment from lattice QCD
• Upper Limits on the Isotropic Gravitational-Wave Background from Advanced LIGO's and Advanced Virgo's Third Observing Run
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm
• From the trees to the forest: a review of radiative neutrino mass models
• New Bounds from Searching for Muonium to Antimuonium Conversion
• Model for a Light Z' Boson
• Non-Standard Interactions in Radiative Neutrino Mass Models
• Search for the Higgs boson decays $H\to ee$ and $H\to e\mu$ in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for lepton-flavor violating decays of the Higgs boson in the $\mu \tau$ and e$\tau$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Collider limits on leptophilic interactions
• Higgs lepton flavour violation: UV completions and connection to neutrino masses
• On the Impact of Lepton PDFs
• $Z^{\prime }$ Mediated WIMPs: Dead, Dying, or Soon to be Detected?
• Leptons in the Proton
• Search for lepton flavour violating decays of a neutral heavy Higgs boson to $\mu \tau$ and e$\tau$ in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Searching for Heavy Leptophilic $Z^{\prime }$: from Lepton Colliders to Gravitational Waves
• Searches for lepton-flavour-violating decays of the Higgs boson into $e\tau$ and $\mu \tau$ in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Search for the lepton-flavor violating decay of the Higgs boson and additional Higgs bosons in the e$\mu$ final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Neutrino mass models at $\mu$TRISTAN
• Constraining Lepton Flavor Violating Higgs Couplings at the HL-LHC in the Vector Boson Fusion Channel
• Dijet and electroweak limits on a $Z^{\prime }$ boson coupled to quarks
• Growing Excesses of New Scalars at the Electroweak Scale
• Hints of a new leptophilic Higgs sector?
• A New Higgs Boson with Electron-Muon Flavor-Violating Couplings
• Charged Lepton Flavour Violation in Heavy Particle DEcays