The leptonic Higgs doublet model of neutrino masses is implemented with an A 4 discrete
symmetry (the even permutation of four objects or equivalently the symmetry of the …

This paper is a review of the present status of neutrino mass physics, which grew out of an
APS sponsored study of neutrinos in 2004. After a discussion of the present knowledge of …

We have performed a thorough analysis of the constraints which can be put on neutrino
parameters from cosmological observations, most notably those from the WMAP satellite …

The current status of neutrino cosmology is reviewed, from the question of neutrino
decoupling and the presence of sterile neutrinos to the effects of neutrinos on the cosmic …

We have carefully analyzed the potential of future cosmic microwave background (CMB) and
large scale structure (LSS) measurements to probe neutrino masses. We perform a Fisher …

We show that there is a minimal discrete symmetry which leads to the extended flavour
democracy scenario constraining the Dirac neutrino, the charged lepton and the Majorana …

We consider the standard model extended by heavy right-handed fermions transforming as
triplets under SU (2) L, which generate neutrino masses through the Type-III seesaw …

In view of the recently reported evidence for a nonzero Majorana mass of the electron
neutrino, together with the established phenomena of atmospheric and solar neutrino …

We perform a careful analysis of constraints on the neutrino mass from current cosmological
data. Combining data from the cosmic microwave background and the 2dF galaxy survey …

We consider different extensions of the Standard Model which can give rise to the small
active neutrino masses through seesaw mechanisms, and their mixing. These tiny neutrino …