28 citations · 82 across the 15 of their papers we have counts for
15 papers
Testing Seesaw and Leptogenesis via Gravitational Waves: Majorana versus Dirac
Anish Ghoshal, Kazunori Kohri, Nimmala Narendra
We investigate the B-L gauge extension of the Standard Model that the Dirac seesaw mechanism with thermal Leptogenesis can be tested using the stochastic gravitational background (…
Impact of Non-Thermal Leptogenesis with Early Matter Domination on Gravitational Waves from First-order Phase Transition
Dilip Kumar Ghosh, Anish Ghoshal, Koustav Mukherjee +2
We study the impact of non-thermal leptogenesis on the spectrum of gravitational waves (GWs) produced by a strong first-order phase transition in the early Universe. We consider a…
A Common Origin of Asymmetric Self-interacting Dark Matter and Dirac Leptogenesis
Manoranjan Dutta, Nimmala Narendra
Assuming dark matter to be asymmetric as well as self-interacting and neutrinos to be Dirac fermions, we propose a framework to address the observed baryon imbalance of the univers…
A singlet scalar assisted Leptogenesis and Pseudo-Scalar Dark Matter
Dilip Kumar Ghosh, Purusottam Ghosh, Koustav Mukherjee +1
We study the Leptogenesis and Dark Matter in the presence of an extra singlet complex scalar field in an extended discrete symmetry. The vacuum expectation va…
Retrieving Inverse Seesaw parameter space for Dirac Phase Leptogenesis
Ananya Mukherjee, Nimmala Narendra
This work addresses the viability of \textit {Dirac phase leptogenesis}, in a scenario where the light Majorana neutrinos acquire masses by the inverse seesaw (ISS) mechanism. We s…
Asymmetric Self-interacting Dark Matter via Dirac Leptogenesis
Manoranjan Dutta, Nimmala Narendra, Narendra Sahu +1
The nature of neutrinos, whether Dirac or Majorana, is hitherto not known. Assuming that the neutrinos are Dirac, which needs to be an exact symmetry, we make an attempt to e…
Leptogenesis and eV scale sterile neutrino
Srubabati Goswami, Vishnudath K. N., Ananya Mukherjee +1
We consider the minimal extended seesaw model which can accommodate an eV scale sterile neutrino. The scenario also includes three heavy right handed neutrinos in addition to the l…
TeV Scale Modified Type-II Seesaw and Dark Matter in a Gauged Symmetric Model
Purusottam Ghosh, Satyabrata Mahapatra, Nimmala Narendra +1
In an endeavor to explain the light neutrino masses and dark matter (DM) simultaneously, we study a gauged extension of the standard model (SM). The neutrino masse…
Flavored leptogenesis and Dirac CP violation
Ananya Mukherjee, Nimmala Narendra
The parameterisation proposed by Casas and Ibarra in the year 2001 have shown promising role in the extraction of neutrino Yukawa coupling which is a basic ingredient of the seesaw…
Flavoured CP-asymmetry at the effective neutrino mass floor
Nimmala Narendra, Narendra Sahu, S. Uma Sankar
Both neutrinoless double beta decay and leptogenesis require neutrinos to be Majorana fermions. A relation between these two phenomena can be derived once the mechanism of neutrino…
Verifiable type-II seesaw and dark matter in a gauged model
Satyabrata Mahapatra, Nimmala Narendra, Narendra Sahu
We propose a gauged extension of the standard model (SM) to explain simultaneously the light neutrino masses and dark matter (DM). The generation of neutrino masses oc…
Dark matter to baryon ratio from scalar triplets decay in type-II seesaw
Nimmala Narendra, Narendra Sahu, Sujay Shil
We propose a minimal model for the cosmic coincidence problem and neutrino mass in a type-II seesaw scenario. We extend the standard model of particle physi…
Right-handed Neutrino Dark Matter with Radiative Neutrino Mass in Gauged Model
Debasish Borah, Dibyendu Nanda, Nimmala Narendra +1
We study the possibility of right-handed neutrino dark matter (DM) in gauged extension of the standard model augmented by an additional scalar doublet, bein…
Baryogenesis via Leptogenesis from Asymmetric Dark Matter and radiatively generated Neutrino mass
Nimmala Narendra, Sudhanwa Patra, Narendra Sahu +1
We propose an extension of the standard model (SM) by including a dark sector comprising of three generations of heavy right-handed neutrinos, a singlet scalar and a singlet Dirac…
Dark matter assisted Dirac leptogenesis and neutrino mass
Nimmala Narendra, Nirakar Sahoo, Narendra Sahu
We propose a minimal extension of the standard model with U(1)_{B-L} \times Z_{2} symmetry. In this model by assuming that the neutrinos are Dirac (i.e. is an exact symmetry)…