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Constraining a general U(1)′ inverse seesaw model from vacuum stability, dark matter and collider

Das, Arindam; Goswami, Srubabati; K. N., Vishnudath; Nomura, Takaaki (Cornell University Library, 2019-05)

We consider a class of gauged U(1) extensions of the Standard Model (SM), where the light neutrino masses are generated by an inverse seesaw mechanism. In addition to the three right handed neutrinos, we add three singlet ...
Electroweak vacuum metastability in a natural minimal type-III seesaw model

Goswami, Srubabati; K. N., Vishnudath; Khan, Najimuddin (Cornell University Library, 2018-10)

We study the minimal type-III seesaw model in which we extend the SM by adding two SU (2) L triplet fermions with zero hypercharge to explain the origin of the non-zero neutrino masses and mixing. We show that the naturalness ...
Electroweak vacuum stability in presence of singlet scalar dark matter in TeV scale seesaw models

Garg, Ila; Goswami, Srubabati; K. N., Vishnudath; Khan, Najimuddin (Cornell University Library, 2017-06)

We consider singlet extensions of the standard model, both in the fermion and the scalar sector, to account for the generation of neutrino mass at the TeV scale and the existence of dark matter respectively. For the neutrino ...
A new sensitivity goal for neutrino-less double beta decay experiments

K. N., Vishnudath; Choubey, Sandhya; Goswami, Srubabati (Cornell University Library, 2019-01)

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