6533b831fe1ef96bd129850c
RESEARCH PRODUCT
Effects of triplet Higgs bosons in long baseline neutrino experiments
Katri HuituJukka MaalampiTimo J. KärkkäinenSampsa Vihonensubject
Particle physicsVIOLATIONPontecorvo–Maki–Nakagawa–Sakata matrixFOS: Physical scienceshiukkasfysiikkaComputer Science::Digital Libraries114 Physical sciences7. Clean energy01 natural sciencesHigh Energy Physics - Phenomenology (hep-ph)effective field theory0103 physical sciences010306 general physicsNeutrino oscillationBosonPhysicsLEFT-RIGHT SYMMETRYneutrino oscillationsPARITYta114010308 nuclear & particles physicsHiggsin bosoniHigh Energy Physics::PhenomenologyneutriinotParity (physics)Coupling (probability)extensions of Higgs sectorHigh Energy Physics - PhenomenologyHiggsin bosonitHiggs bosonDOUBLY-CHARGED HIGGSHigh Energy Physics::ExperimentNeutrinoLeptondescription
The triplet scalars $(\Delta=\Delta^{++},\Delta^{+},\Delta^{0})$, utilized in the so-called Type-II seesaw model to explain the lightness of neutrinos, would generate nonstandard interactions (NSI) for neutrino propagating in matter. We investigate the prospects to probe these interactions in long baseline neutrino oscillation experiments. We analyze the upper bounds that the proposed DUNE experiment might set on the nonstandard parameters and numerically derive upper bounds, as function of the lightest neutrino mass, on the ratio the mass $M_\Delta$ of the triplet scalars and strength $|\lambda_\phi|$ of the coupling $\phi\phi\Delta$ of the triplet $\Delta$ and conventional Higgs doublet $\phi$ . We also discuss the possible misinterpretation of these effects as effects arising from a nonunitarity of the neutrino mixing matrix and compare the results with the bounds that arise from the charged lepton flavor violating processes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-05-29 |