July 28, 2020 to August 6, 2020
virtual conference
Europe/Prague timezone

Explaining the SM flavor structure with grand unified theories

Jul 28, 2020, 5:15 PM
virtual conference

virtual conference

Talk 03. Beyond the Standard Model Beyond the Standard Model


Renato Fonseca (IPNP, Charles University, Prague)


We do not know why there are three fermion families in the Standard Model (SM), nor can we explain the observed pattern of fermion masses and mixing angles. Standard grand unified theories based on the SU(5) and SO(10) groups fail to shed light on this issue, since they also contain three copies of fermion representations of an enlarged gauge group.

However, it does not need to be so. In this talk, I will discuss the possibility that the Standard Model families are distributed over distinct representations of a grand unified model, in which case the gauge symmetry itself might discriminate the various families and explain (at least partially) the flavor puzzle.

Primary author

Renato Fonseca (IPNP, Charles University, Prague)

Presentation materials