The mass hierarchies of quarks and charged leptons as well as a large #nu#_#mu#-#nu#_#tau# mixing angle are naturally explained by the Frogatt-Nielsen mechanism with a nonparallel family structure of chiral charges. We extend this mechanism to right-handed neutrinos. Their out-of-equilibrium decay generates a cosmological baryon asymmetry whose size is quantized in powers of the hierarchy parameter #epsilon#"2. For the simplest hierarchy pattern the neutrino mass anti m_#nu# = (m_#nu#__#mu#_m_#nu#__#tau#_)"1"/"2 #propor to# 10"-"2 eV, which is inferred from present indications for neutrino oscillations, implies a baryon asymmetry n_B/s #propor to# 10"-"1"0. The corresponding baryogenesis temperat...
Inverting the type-I seesaw formula, we reconstruct the mass matrix of the heavy right-handed neutri...
We study the implications of thermal leptogenesis for neutrino parameters. Assuming that decays of N...
In this Letter we demonstrate that what was previously considered as different mechanisms of baryon ...
The mass hierarchies of quarks and charged leptons as well as a large ν μ – ν τ mixing angle are nat...
Baryogenesis appears to require lepton number violation. This is naturally realized in extensions of...
The cosmological baryon asymmetry can be explained by the nonperturbative electroweak reprocessing o...
Baryogenesis appears to require lepton number violation. This is naturally realized in extensions of...
We calculate the baryon asymmetry of the Universe in thermal leptogenesis beyond the usual lightest ...
The baryon asymmetry of the universe can be explained by the out-of-equilibrium decays of heavy righ...
In theories where B-L is a spontaneously broken local symmetry, the cosmological baryon asymmetry ca...
via the seesaw mechanism and the baryon asymmetry of the Universe via leptogenesis. If the mass of t...
Interactions of heavy Majorana neutrinos in the thermal phase of the early universe may be the origi...
Due to sphaleron processes in the high-temperature symmetric phase of the standard model the cosmolo...
The cosmological baryon asymmetry can be explained as remnant of heavy Majorana neutrino decays in t...
We show that the seesaw mechanism may explain two independent physical parameters, small neutrino ma...
Inverting the type-I seesaw formula, we reconstruct the mass matrix of the heavy right-handed neutri...
We study the implications of thermal leptogenesis for neutrino parameters. Assuming that decays of N...
In this Letter we demonstrate that what was previously considered as different mechanisms of baryon ...
The mass hierarchies of quarks and charged leptons as well as a large ν μ – ν τ mixing angle are nat...
Baryogenesis appears to require lepton number violation. This is naturally realized in extensions of...
The cosmological baryon asymmetry can be explained by the nonperturbative electroweak reprocessing o...
Baryogenesis appears to require lepton number violation. This is naturally realized in extensions of...
We calculate the baryon asymmetry of the Universe in thermal leptogenesis beyond the usual lightest ...
The baryon asymmetry of the universe can be explained by the out-of-equilibrium decays of heavy righ...
In theories where B-L is a spontaneously broken local symmetry, the cosmological baryon asymmetry ca...
via the seesaw mechanism and the baryon asymmetry of the Universe via leptogenesis. If the mass of t...
Interactions of heavy Majorana neutrinos in the thermal phase of the early universe may be the origi...
Due to sphaleron processes in the high-temperature symmetric phase of the standard model the cosmolo...
The cosmological baryon asymmetry can be explained as remnant of heavy Majorana neutrino decays in t...
We show that the seesaw mechanism may explain two independent physical parameters, small neutrino ma...
Inverting the type-I seesaw formula, we reconstruct the mass matrix of the heavy right-handed neutri...
We study the implications of thermal leptogenesis for neutrino parameters. Assuming that decays of N...
In this Letter we demonstrate that what was previously considered as different mechanisms of baryon ...