518 citations · 3.6k across the 129 of their papers we have counts for
12 papers · 1 filter
Phenomenology of the Neutrino-Mass-Giving Higgs Triplet and the Low-Energy Seesaw Violation of Lepton Number
Ernest Ma, Martti Raidal, Utpal Sarkar
Small realistic Majorana neutrino masses can be generated via a Higgs triplet without having energy scales larger than TeV in the theory. The…
Allowable Low-Energy E_6 Subgroups from Leptogenesis
Thomas Hambye, Ernest Ma, Martti Raidal +1
There are only two viable low-energy subgroups: or , whi…
Supersymmetric Triplet Higgs Model of Neutrino Masses and Leptogenesis
Thomas Hambye, Ernest Ma, Utpal Sarkar
We construct a supersymmetric version of the triplet Higgs model for neutrino masses, which can generate a baryon asymmetry of the Universe through lepton-number violation and is c…
Possible textures of neutrino and charged lepton mass matrices
Bipin R. Desai, Utpal Sarkar, Alexander R. Vaucher
We study a variety of different texture patterns in the basis in which the charged lepton mass matrix or neutrino mass matrix or neither are diagonal. The experimental results on t…
Low-Scale Axion from Large Extra Dimensions
Ernest Ma, Martti Raidal, Utpal Sarkar
The mass of the axion and its decay rate are known to depend only on the scale of Peccei-Quinn symmetry breaking, which is constrained by astrophysics and cosmology to be between $…
Light Sterile Neutrinos from Large Extra Dimensions
Ernest Ma, G. Rajasekaran, Utpal Sarkar
An experimentally verifiable Higgs-triplet model of neutrino masses from large extra dimensions was recently proposed. We extend it to accomodate a light sterile neutrino which als…