13 citations · 13 across the 1 of their papers we have counts for
6 papers
Primordial Nucleosynthesis as a Test of the Friedmann Equation in the Early Universe
Eduard Massó, Francesc Rota
In the standard hot big bang model, the expansion of the early universe is given by the Friedmann equation with an energy density dominated by relativistic particles. Since in a va…
Gravitinos from Gravitational Collapse
J. A. Grifols, E. Masso, R. Toldra
We reanalyse the limits on the gravitino mass in superlight gravitino scenarios derived from arguments on energy-loss during gravitational collapse. We conclude that the…
THE ORTHOPOSITRONIUM DECAY PUZZLE AND PRIMORDIAL NUCLEOSYNTHESIS
R. Escribano, E. Masso, R. Toldra
The discrepancy between the experimental decay rate of orthopositronium (o-Ps) and the QED theoretical prediction can be solved by invoking decays of o-Ps into exotic particles wit…
Constraints on Neutrino-Neutrino Interactions from Primordial Nucleosynthesis
Eduard Massó, Ramon Toldrà
We use the constraints arising from primordial nucleosynthesis to bound the strength of non-standard neutrino-neutrino interactions, when the right-handed neutrinos participate…
Constraints on Fermion Magnetic and Electric Moments from LEP-I
R. Escribano, E. Massó
The effective Lagrangian approach allows us to constrain fermion magnetic and electric moments using LEP-I data. We improve some of the previous limits on these moments.
The and Decays Revisited
Ll. Ametller, A. Bramon, E. Massó
The rare and decays are calculated in different schemes, which are seen to be essentially equivalent to and produce the same results as conventional…