Old Journal Club: ‘Cosmological Lower Bound on Heavy-Neutrino Masses’
June 4 | 17:00 - 18:00
Valeria Costa (IFT) will present: Cosmological Lower Bound on Heavy-Neutrino Masses, de B. W. Lee y S. Weinberg.
Venue&Time: Blue Room / 17:00
Abstract:
The present cosmic mass density of possible-stable neutral heavy leptons is calculated in a standard cosmological model. In order for this density not to exceed the upper limit of 2*10^-29 g/cm^3, the lepton mass would have to be greater than a lower bound of the order of 2 GeV.
