Probing active-sterile neutrino transition magnetic moments at LEP and CEPC

Abstract

We consider the sterile neutrino, that is also know as heavy neutral lepton (HNL), interacting with the Standard Model (SM) active neutrino and photon via a transition magnetic moment, the so-called dipole portal, which can be induced from the more general dipole couplings which respect the full gauge symmetries of the SM. Depending on the interactions with $\mathrm{SU}(2{)}_L$ and ${\mathrm{U}(1)}_Y$ field strength tensors ${\mathcal{W}}_{\mu \nu }^a$ and $B^{\mu \nu }$, we consider four typical scenarios and probe the constraints on the couplings with photon $d_{\gamma }$ at LEP using the analyses to search monophoton signature and the measurement of $Z$ decay. We find that in the considered scenarios assuming the coupling with $Z$ boson $d_Z\ne 0$, the measurement of $Z$ decaying into photon plus invisible particles can provide stricter constraints than the monophoton searches at the LEP1. The complementary constraints to existing experiments can be provided by the LEP. We also investigate the sensitivity on the dipole portal coupling $d_{\gamma }$ from the monophoton searches at future electron colliders, such as CEPC, and find that CEPC can explore the previously unconstrained parameter space by current experiments.

21 pages, 8 figures. Matched the published version in Phys. Rev. D

References in corpus (27)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Right-handed neutrino magnetic moments
• Double Bangs from New Physics in IceCube
• The Neutrino Magnetic Moment Portal: Cosmology, Astrophysics, and Direct Detection
• WIMP Dark Matter at the International Linear Collider
• Low-energy probes of sterile neutrino transition magnetic moments
• Neutrino Up-scattering via the Dipole Portal at Forward LHC Detectors
• Neutrino beam-dump experiment with FASER at the LHC
• Luminous solar neutrinos I: Dipole portals
• Probing Active-Sterile Neutrino Transition Magnetic Moments with Photon Emission from CE$\nu$NS
• Testing leptogenesis at the LHC and future muon colliders: a $Z^{\prime }$ scenario
• Constraining active-sterile neutrino transition magnetic moments at DUNE near and far detectors
• Probing right-handed neutrinos dipole operators
• Heavy Neutrino searches through Double-Bang Events at Super-Kamiokande, DUNE, and Hyper-Kamiokande
• Assessment of the Dimension-5 Seesaw Portal and Impact of Exotic Higgs Decays on Non-Pointing Photon Searches
• Neutrino Portals, Terrestrial Upscattering, and Atmospheric Neutrinos
• Heavy Neutrinos at the FCC-hh in the $U(1{)}_{B-L}$ Model
• CP violation in neutral lepton transition dipole moment
• Dipole-Coupled Neutrissimo Explanations of the MiniBooNE Excess Including Constraints from MINERvA Data
• Cosmic neutrino flux and spin flavor oscillations in intergalactic medium
• Dipole portal and neutrinophilic scalars at DUNE revisited: the importance of the high-energy neutrino tail
• Monojet search for heavy neutrinos at future $Z$-factories
• Using DUNE to Shed Light on the Electromagnetic Properties of Neutrinos
• Probing Heavy Sterile Neutrinos at Ultrahigh Energy Neutrino Telescopes via the Dipole Portal
• Testing the seesaw mechanisms via displaced right-handed neutrinos from a light scalar at the HL-LHC
• Probing neutrino magnetic moments and the XENON1T excess with coherent elastic solar neutrino scattering
• Neutrino dipole portal at electron colliders

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• Quantum coherence in neutrino spin-flavor oscillations
• Collider Prospects for the Neutrino Magnetic Moment Portal
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