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  1. Article

    Open Access

    Flavored leptogenesis and neutrino mass with A4 symmetry

    We propose a minimal A4 flavor symmetric model, assisted by Z2 × Z3 symmetry, which can naturally takes care of the appropriate lepton mixing and neutrino masses via Type-I seesaw. It turns out that the framework...

    Arghyajit Datta, Biswajit Karmakar, Arunansu Sil in Journal of High Energy Physics (2021)

  2. Article

    Open Access

    Two component dark matter with inert Higgs doublet: neutrino mass, high scale validity and collider searches

    The idea of this work is to investigate the constraints on the dark matter (DM) allowed parameter space from high scale validity (absolute stability of Higgs vacuum and perturbativity) in presence of multi par...

    Subhaditya Bhattacharya, Purusottam Ghosh in Journal of High Energy Physics (2020)

  3. Article

    Open Access

    Dark side of the seesaw

    In an attempt to unfold (if any) a possible connection between two apparently uncorrelated sectors, namely neutrino and dark matter, we consider the type-I seesaw and a fermion singlet dark matter to start wit...

    Subhaditya Bhattacharya, Ivo de Medeiros Varzielas in Journal of High Energy Physics (2018)

  4. Article

    Open Access

    Dark matter as a remnant of SQCD inflation

    We propose a strongly coupled supersymmetric gauge theory that can accommodate both the inflation (in the form of generalized hybrid inflation) and dark matter (DM). In this set-up, we identify the DM as the G...

    Subhaditya Bhattacharya, Abhijit Kumar Saha, Arunansu Sil in Journal of High Energy Physics (2018)

  5. No Access

    Chapter and Conference Paper

    Stabilizing Electroweak Vacuum Through Modified Chaotic Inflation

    We study the issue of vacuum stability in presence of a scalar field which modifies the minimal chaotic inflation model successfully. We find the required parameter space for which absolute higgs vacuum stab...

    Abhijit Kumar Saha, Arunansu Sil in XXII DAE High Energy Physics Symposium (2018)

  6. Article

    Open Access

    Flavor origin of dark matter and its relation with leptonic nonzero θ 13 and Dirac CP phase δ

    We propose a minimal extension of the standard model by including a U(1) flavor symmetry to establish a correlation between the relic abundance of dark matter, measured by WMAP and PLANCK satellite experiments...

    Subhaditya Bhattacharya, Biswajit Karmakar, Narendra Sahu in Journal of High Energy Physics (2017)

  7. No Access

    Chapter and Conference Paper

    Neutrino Masses, Mixing and Leptogenesis in Type-I Seesaw with \(A_4\) Symmetry

    In order to explain the observed nonzero value of the mixing angle \(\theta _{13}\) ...

    Biswajit Karmakar, Arunansu Sil in XXI DAE-BRNS High Energy Physics Symposium (2016)

  8. Article

    Open Access

    A dynamic modification to sneutrino chaotic inflation

    We consider a right-handed scalar neutrino as the inflaton which carries a gravitational coupling with a supersymmetric QCD sector responsible for breaking supersymmetry dynamically. The framework suggests an ...

    Abhijit Kumar Saha, Arunansu Sil in Journal of High Energy Physics (2015)

  9. No Access

    Article

    Working group report: Neutrino and astroparticle physics

    This is the report of neutrino and astroparticle physics working group at WHEPP-7. Discussions and work on CP violation in long baseline neutrino experiments, ultra high energy neutrinos, supernova neutrinos a...

    Raj Gandhi, Kamales Kar, S. Uma Sankar, Abhijit Bandyopadhyay, Rahul Basu in Pramana (2003)