Special NBIA Seminar: Rasmi Hajjar

Title: Addressing tensions in neutrino masses

Speaker: Rasmi Hajjar (IFIC, Univesity of Valencia)

Location: Auditorium D, Blegdamsvej 17

Abstract: 

The confirmation of non-zero neutrino masses marked the first departure from the Standard Model of particle physics. Nonetheless, the neutrino mass sector still contains uncertainties and exhibits tensions among different measurements. In this talk, I will review the current understanding of neutrino masses, focusing on these existing tensions.

In the first part, I will explain how a galactic supernova explosion could provide a competitive measurement of the solar mixing parameters in light of the discrepancy between reactor and solar data. In the second part, I will address the current anomaly between cosmological and oscillation limits on the sum of neutrino masses, discussing the primary neutrino effects to which CMB data is sensitive, and finding valuable hints to avoid cosmological constraints.