High-Energy Physics & RIKEN Theory Seminar

"Non-unitary neutrino oscillations to reduce tension between the NOvA and T2K data"

Presented by Soebur Razzaque, University of Johannesburg

Thursday, May 20, 2021, 11:00 am — Videoconference / Virtual Event (see link below)

Abstract:
The unitary PMNS matrix is the parametrization used for mixing of three active neutrinos. In case there are extra neutrinos which are heavy iso-singlets, the effective mixing matrix for the three active neutrinos will be non-unitary. As a result, the oscillation probabilities between the active neutrinos are modified from the probabilities obtained using the PMNS matrix. Long baseline neutrino experiments can probe the non-unitarity and constrain parameters of the model. We have analyzed the latest data from the NOvA and T2K experiments using both the unitary and non-unitary mixing scenarios. In this talk I will present results from our analysis and show that the tension between the oscillation data from these two experiments can be reduced when analyzing with non-unitary mixing of the neutrinos.

Hosted by: Julia Gehrlein

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