Most benchmark neutrino-dark matter couplings adopted in previous studies are excluded when laboratory meson and Z decay bounds are combined with cosmological and astrophysical constraints, leaving only special galactic-spike scenarios for observable supernova-neutrino attenuation.
Constraint on parity-violating muonic forces
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abstract
Using the nonobservance of missing mass events in the leptonic kaon decay $K \to \mu X$, we place a strong constraint on exotic parity-violating gauge interactions of the right-handed muon. By way of illustration, we apply it to an explanation of the proton size anomaly that invokes such a new force; scenarios in which the gauge boson decays invisibly or is long-lived are constrained.
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New Constraints on Neutrino-Dark Matter Interactions: A Comprehensive Analysis
Most benchmark neutrino-dark matter couplings adopted in previous studies are excluded when laboratory meson and Z decay bounds are combined with cosmological and astrophysical constraints, leaving only special galactic-spike scenarios for observable supernova-neutrino attenuation.