Sep 8 – 14, 2019
Toyama International Conference Center
Japan timezone

Neutrino masses beyond the minimal seesaw

Sep 9, 2019, 2:00 PM
203 (Toyama International Conference Center)


Toyama International Conference Center
Oral presentation in parallel session Neutrinos Neutrino #2


Martin Hirsch (IFIC (CSIC, Universidad de Valencia))


Majorana neutrino masses can be generated in a variety of ways. The simplest possibility is to open the d=5 Weinberg operator at tree-level. This leads to the three well-known variants of the seesaw mechanism. However, the smallness of the observed neutrino masses can also be understood, if neutrino masses are generated by higher-dimensional operators and/or at higher loop level. In this talk I will summarize recent work on higher-dimensional and radiative neutrino mass modeling from a general point of view. In particular the complete 3-loop classification scheme, published in JHEP 1810 (2018) 197, will be discussed.

Primary author

Martin Hirsch (IFIC (CSIC, Universidad de Valencia))

Presentation materials