Speaker
Description
The observation of neutrino oscillation means the presence of massive neutrinos in the Standard Model. The well-established framework of standard three-flavor neutrino oscillation sets us for the goal of looking for new physics beyond SM. The heavier neutrino states can decay into lighter ones, first proposed to explain the zenith angle dependence observed in the first data of atmospheric neutrinos in Super-Kamiokande. The decay of the Dirac neutrinos will produce a SU(2) singlet and a complex scalar φ with lepton number -2 and zero weak isospin and hypercharge. In our work, we explore how the presence of decay of the heaviest neutrino mass eigenstate will affect the degeneracies of octant-mass-hierarchy-$\delta_{CP}$ in the future long baseline experiments. We consider two proposed experiments, Deep Underground Neutrino Experiment (DUNE) and Portvino to ORCA (P2O), with baselines of 1300 km and 2588 km (bi-magic baseline).
| Track type | Neutrino Physics |
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