3 papers
hep-ph2026
Quark hierarchies and CP violation from the Siegel modular group
M. Carducci, D. Meloni, M. Parriciatu +1
We investigate theories of flavour based on genus modular invariance and analyze how fermion mass hierarchies can be generated in this context, in the vicinity of invariant p…
hep-ph2025
Modular-symmetry-protected seesaw
A. Granelli, D. Meloni, M. Parriciatu +2
In the presence of a finite modular flavour symmetry, fermion mass hierarchies may be generated by a slight deviation of the modulus from a symmetric point. We point out that this…
hep-ph2024
Solving the strong CP problem without axions
Ferruccio Feruglio, Matteo Parriciatu, Alessandro Strumia +1
We formulate general conditions under which the strong CP problem is solved by spontaneous CP violation. Quark-mass matrix elements are polynomials in the CP-breaking order paramet…