Probing Scotogenic Effects in e+e- Colliders

Abstract

We explore the possibility of employing e+e- colliders to probe the scotogenic model, in which neutrinos get mass radiatively via one-loop interactions involving dark matter. Assuming the lightest one of the new particles in the model to be fermionic cold dark matter and taking into account various constraints, including those from LHC Higgs experiments, we show that LEP II data on e+e- scattering into a pair of charged leptons plus missing energy can place significant extra restrictions on the parameter space containing sufficiently low masses of the charged scalars in the model. On the other hand, LEP II data on e+e- collisions into a photon plus missing energy do not yield strong constraints. The allowed parameter space can still accommodate Higgs exotic decays into the nonstandard particles and thus is testable at the LHC. We also consider using future measurements of these two types of e+e- scattering at the International Linear Collider to examine the scenario of interest further and find that they can provide complementary information about it, whether or not they reveal scotogenic effects.

20 pages, 1 figure, expanded, references added, main results unchanged, matches journal version

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Cited by in corpus (17)

• Exotic Decays of the 125 GeV Higgs Boson
• From the trees to the forest: a review of radiative neutrino mass models
• The low-scale approach to neutrino masses
• Direct detection of fermion dark matter in the radiative seesaw model
• 3.5 keV X-ray Line Signal from Decay of Right-Handed Neutrino due to Transition Magnetic Moment
• Lepton Flavor Violation in the singlet-triplet scotogenic model
• Systematic U(1)_{B-L} Extensions of Loop-Induced Neutrino Mass Models with Dark Matter
• IDM benchmarks for the LHC and future colliders
• Exploring X-Ray Lines as Scotogenic Signals
• Effects of Two Inert Scalar Doublets on Higgs Interactions and Electroweak Phase Transition
• Primordial black holes and scotogenic dark matter
• Parametrization of the Yukawa matrix in the scotogenic model and single-zero textures of the neutrino mass matrix
• The Scale Invariant Scotogenic Model: Dark Matter and the Scalar Sector
• Identifying the nature of dark matter at $e^{-}{e}^{+}$ Colliders
• Revisiting the scotogenic model with scalar dark matter
• Constraining scotogenic dark matter and primordial black holes using gravitational waves
• Primordial black holes and lepton flavor violation with scotogenic dark matter