330 citations · 782 across the 13 of their papers we have counts for
13 papers
Symmetry Nonrestoration at High Temperature in Little Higgs Models
J. R. Espinosa, M. Losada, A. Riotto
A detailed study of the high temperature dynamics of the scalar sector of Little Higgs scenarios, proposed to stabilize the electroweak scale, shows that the electroweak gauge symm…
Thermal and Non-Thermal Production of Gravitinos in the Early Universe
G. F. Giudice, A. Riotto, I. Tkachev
The excessive production of gravitinos in the early universe destroys the successful predictions of nucleosynthesis. The thermal generation of gravitinos after inflation leads to t…
F-term inflation in Superstring Theories
J. A. Casas, G. B. Gelmini, A. Riotto
A supersymmetric inflationary stage dominated by an -term has the problem that the flatness of the potential is spoiled by supergravity corrections, that is the slow-roll parame…
The Sphaleron in a Magnetic Field and Electroweak Baryogenesis
D. Comelli, D. Grasso, M. Pietroni +1
The presence of a primordial magnetic field in the early universe affects the dynamic of the electroweak phase transition enhancing its strength. This effect may enlarge the window…
D-term Inflation in Superstring Theories
J. R. Espinosa, A. Riotto, G. G. Ross
An inflationary stage dominated by a -term avoids the slow-roll problem of inflation in supergravity and may emerge in theories with a non-anomalous or anomalous U(1) gauge symm…
Recent Developments in Electroweak baryogenesis
A. Riotto
We discuss some recent developments made in the computation of the baryon asymmetry generated at the electroweak scale. We emphasize that the local number density asymmetries of th…