518 citations · 3.6k across the 129 of their papers we have counts for
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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…
Leptogenesis from Neutralino Decay with Nonholomorphic R-Parity Violation
Thomas Hambye, Ernest Ma, Utpal Sarkar
In supersymmetric models with lepton-number violation, hence also R-parity violation, it is easy to have realistic neutrino masses, but then leptogenesis becomes difficult to achie…
Neutrino Masses and the Gluino Axion Model
D. A. Demir, Ernest Ma, Utpal Sarkar
We extend the recently proposed gluino axion model to include neutrino masses. We discuss how the canonical seesaw model and the Higgs triplet model may be realized in this framewo…
Neutrino Majorana Mass and Baryon Number of the Universe below the Electroweak Symmetry breaking Scale
H. V. Klapdor-Kleingrothaus, St. Kolb, U. Sarkar
If the neutrino is Majorana type and the electroweak phase transition is second or weak first order, neutrino-induced interactions together with sphaleron transitions have the pote…
About the Mixing and CP Violation in Neutrino System
Yong Liu, Utpal Sarkar
Suppose the geometrical explaination to the weak CP phase in quark sector is also valid for neutrinos, the mixing and CP violation in neutrino system are discussed. We find a large…
New exotics in the double beta decay contributions zoo
H. V. Klapdor-Kleingrothaus, H. Päs, U. Sarkar
We discuss the potential of neutrinoless double beta decay for testing Lorentz invariance and the weak equivalence principle as well as contributions from dilaton exchange gravity…
Comment on ``Closing the neutrinoless double beta decay window into VEP and/or VLI''
H. V. Klapdor-Kleingrothaus, H. Päs, U. Sarkar
The constraints from the non-observation of neutrinoless double beta decay on the violations of Lorentz invariance (VLI) or violations of the equivalence principle (VEP) have recen…