Webinar: Is a non-standard interaction a solution to the three neutrino tensions?
por
Prof.Osamu Yasuda
(Tokyo Metropolitan University)
→
Europe/Madrid
retransmitted from Seminar Room, 1.1.1 (IFIC)
retransmitted from Seminar Room, 1.1.1
IFIC
Paterna (Valencia)
Descripción
In this work we present a scenario in which a nonstandard interaction in neutrino propagation can explain the three major tensions in the neutrino oscillation data at present. These tensions are: (i) a non-zero best-fit value of the non-standard oscillation parameters in the global analysis of the solar and KamLAND data which rules out the standard oscillation scenario at 90% C.L, (ii) the measurement of the non-maximal value of theta23 by Nova which excludes maximal mixing at 2.5 sigma and (iii) the discrepancy in the theta13 measurement by T2K and reactors at 90% C.L. Our results show that all these three anomalies can be explained if one assumes the existence of non-standard interactions in neutrino propagation in the case of normal hierarchy. In our scenario the phase of $\epsilon_{e\tau}$ is zero and the most favorable value of the Dirac CP phase is approximately 255 degrees.