26 citations · 45 across the 2 of their papers we have counts for
4 papers · 1 filter
Beyond the Minimal Composite Higgs Model
Ben Gripaios, Alex Pomarol, Francesco Riva +1
The Higgs spectrum of the minimal composite Higgs model, based on the SO(5)/SO(4) coset, consists of a unique Higgs doublet whose phenomenology does not differ greatly from the Sta…
Curvature Perturbation from Supersymmetric Flat Directions
Antonio Riotto, Francesco Riva
We show that a contribution to the total curvature perturbation may be due to the presence of flat directions in supersymmetric models. It is generated at the first os- cillation o…
Supersymmetric Leptogenesis and the Gravitino Bound
G. F. Giudice, L. Mether, A. Riotto +1
Supersymmetric thermal leptogenesis with a hierarchical right-handed neutrino mass spectrum requires the mass of the lightest right-handed neutrino to be heavier than about 10^9 Ge…
Non-Perturbative Flat Direction Decay
Anders Basboll, David Maybury, Francesco Riva +1
We argue that supersymmetric flat direction vacuum expectation values can decay non-perturbatively via preheating. Considering a toy U(1) gauge theory, we explicitly calculate the…