182 citations · 1.3k across the 95 of their papers we have counts for
4 papers · 1 filter
Gravitino constraints on models of neutrino masses and leptogenesis
David Delepine, Utpal Sarkar
In the supersymmetric extensions of the standard model, neutrino masses and leptogenesis requires existence of new particles. We point out that if these particles with lepton numbe…
Electroweak Baryogenesis in the Presence of an Isosinglet Quark
G. C. Branco, D. Delepine, D. Emmanuel-Costa +1
We consider the possibility of electroweak baryogenesis in a simple extension of the standard model with an extra singlet complex scalar and a vector-like down quark. We show that…
Final State Interaction Phases in Decay Amplitudes
D. Delepine, J. -M. Gerard, J. Pestieau +1
A simple Regge pole model for scattering explains the large between isospin amplitudes which is observed at the D meson mass (). It predicts $δ\approx…
A model for a dynamically induced large CP-violating phase
D. Delepine
Assuming a new interaction with a term for the third generation of quarks, a value of different from zero dynamically induces the top- bottom mass splitting and a large CP-…