Publications (6)
On Higgs and sphaleron effects during the leptogenesis era
Enrico Nardi, Yosef Nir, Juan Racker +1
We discuss the effects of various processes that can be active during the leptogenesis era, and present the Boltzmann equations that take them into account appropriately. A non-van…
CP violation in scatterings, three body processes and the Boltzmann equations for leptogenesis
Enrico Nardi, Juan Racker, Esteban Roulet
We obtain the Boltzmann equations for leptogenesis including decay and scattering processes with two and three body initial or final states. We present an explicit computation of t…
Generalised Casas-Ibarra Parametrisation for Majorana Neutrino Masses
Juan Herrero-GarcÃa, Simone Marciano, Juan Racker +1
We present a simple and broadly applicable extension of the Casas-Ibarra parametrisation that captures the structure of all Majorana neutrino mass models. Building directly on the…
Gravitational to Coulomb force ratio and the origin of the Cosmic magnetic field
Nelson D. Padilla, Juan Racker, Ignacio J. Araya +1
The origin of the seeds of galactic magnetic fields is a subject that remains under debate. Here we will explore a simple source based on tiny charge asymmetries in slowly rotating…
Thermodynamics in variable speed of light theories
Juan Racker, Pablo Sisterna, Hector Vucetich
The perfect fluid in the context of a covariant variable speed of light theory proposed by J. Magueijo is studied. On the one hand the modified first law of thermodynamics together…
The importance of flavor in leptogenesis
Enrico Nardi, Yosef Nir, Esteban Roulet +1
We study leptogenesis from the out-of-equilibrium decays of the lightest heavy neutrino in the medium (low) temperature regime, $T\lsim 10^{12}$ GeV ( GeV), where th…