6533b7d1fe1ef96bd125cc83
RESEARCH PRODUCT
Bounds on Neutrino-Scalar Yukawa Coupling
Orlando L. G. PeresPedro PasquiniPedro Pasquinisubject
PhysicsCouplingParticle physicsMeson010308 nuclear & particles physicsPhysics beyond the Standard ModelScalar (mathematics)High Energy Physics::PhenomenologyYukawa potentialFOS: Physical sciences01 natural sciencesMassless particleGeneral Relativity and Quantum CosmologyHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesHigh Energy Physics::ExperimentNeutrinoHeavy neutrino010306 general physicsNuclear Experimentdescription
General neutrino-scalar couplings appear in many extensions of Standard Model. We can probe these neutrino-scalar couplings by leptonic decay of mesons and from heavy neutrino search. Our analysis improves the present limits to $|g_e|^2<1.9\times 10^{-6}$ and $|g_\mu|^2<1.9\times 10^{-7}$ at 90\% C.L. for massless scalars. For massive scalars we found for the first time the constraints for $g^2_{\alpha}$ couplings to be $10^{-6}-10^{-1}$ respectively for scalar masses between below 1 MeV and for 300 MeV.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-11-05 |