4 papers
Covert symmetries in the neutrino mass matrix
Fredrik Björkeroth, Luca Di Luzio, Federico Mescia +1
The flavour neutrino puzzle is often addressed by considering neutrino mass matrices with a certain number of vanishing entries ( for some values of the indices), sin…
Axion-electron decoupling in nucleophobic axion models
Fredrik Björkeroth, Luca Di Luzio, Federico Mescia +3
The strongest upper bounds on the axion mass come from astrophysical observations like the neutrino burst duration of SN1987A, which depends on the axion couplings to nucleons, or…
flavour symmetries as Peccei-Quinn symmetries
Fredrik Björkeroth, Luca Di Luzio, Federico Mescia +1
We investigate to what extent a generic, generation-dependent symmetry acting on the quark Yukawa operators can reduce the number of free parameters by forcing some entries…
Flavourful Axion Phenomenology
Fredrik Björkeroth, Eung Jin Chun, Stephen F. King
We present a comprehensive discussion of the phenomenology of flavourful axions, including both standard Peccei-Quinn (PQ) axions, associated with the solution to the strong p…