Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Ghosal, Ambar"'
Ultralight primordial black holes (PBHs)($\lesssim10^9$g) completely evaporate via Hawking radiation (HR) and produce all the particles in a given theory regardless of their other interactions. If the right handed (RH) neutrinos are produced from PBH
Externí odkaz:
http://arxiv.org/abs/2012.14981
Publikováno v:
JHEP09(2020)025
We use $S_4$ discrete group to construct a neutrino flavour model which leads to $TM_1$ mixing and is consistent with the neutrino oscillation data. Using the model's constrained parameter space, we predict the values of Dirac $CP$ phase and the ligh
Externí odkaz:
http://arxiv.org/abs/2003.00506
Autor:
Datta, Satyabrata, Ghosal, Ambar
Parametrization of the neutrino mass matrix in terms of well-known measured quantities is an attractive way to obtain a phenomenologically viable form. We propose a model of neutrino mass matrix based on type-II seesaw mechanism adhering the concept
Externí odkaz:
http://arxiv.org/abs/1909.05061
Publikováno v:
Phys. Rev. D 99, 033009 (2019)
We propose a complex extension of mixed $\mu\tau$ antisymmetry in the neutrino Majorana mass matrix $M_\nu$. This can be implemented in the Lagrangian by a generalized CP transformation (labeled by a mixing parameter $\theta$) on the left-chiral flav
Externí odkaz:
http://arxiv.org/abs/1809.06615
Within the framework of residual symmetry, two $\mathbb{Z}_2$ type associate $\mu\tau$ interchange symmetries robustly constrain the Dirac CP phase $\delta$ in a model independent way. Both of them predict simultaneous maximality of $\delta$ and the
Externí odkaz:
http://arxiv.org/abs/1805.10031
We propose a complex extension of $\mu\tau$ permutation antisymmetry in the neutrino Majorana matrix $M_\nu$. The latter can be realized for the Lagrangian by appropriate CP transformations on the neutrino fields. The resultant form of $M_\nu$ is sho
Externí odkaz:
http://arxiv.org/abs/1712.06555
We investigate the consequences of a generalized $\mathbb{Z}_2\times\mathbb{Z}_2$ symmetry on a scaling neutrino Majorana mass matrix. It enables us to determine definite analytical relations between the mixing angles $\theta_{12}$ and $\theta_{13}$,
Externí odkaz:
http://arxiv.org/abs/1706.00946
Baryogenesis via leptogenesis is investigated in a specific model of light neutrino masses and mixing angles. The latter was proposed on the basis of an assumed complex-extended scaling property of the neutrino Majorana mass matrix $M_\nu$, derived w
Externí odkaz:
http://arxiv.org/abs/1610.10081
The residual symmetry approach, along with a complex extension for some flavor invariance, is a powerful tool to uncover the flavor structure of the $3\times3$ neutrino Majorana mass matrix $M_\nu$ towards gaining insights into neutrino mixing. We ut
Externí odkaz:
http://arxiv.org/abs/1604.06731
Using the residual symmetry approach, we propose a complex extension of the scaling ansatz on $M_\nu$ which allows a nonzero mass for each of the three light neutrinos as well as a nonvanishing $\theta_{13}$. Leptonic Dirac CP violation must be maxim
Externí odkaz:
http://arxiv.org/abs/1604.01206