scholarly journals Probing the dark matter of a three-loop radiative neutrino mass generation model with the Cherenkov Telescope Array

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
Talal Ahmed Chowdhury ◽  
Saquib Hassan ◽  
Jahid Hossain ◽  
Salah Nasri ◽  
Mahmud Ashraf Shamim
Keyword(s):  
Dark Matter ◽  
Neutrino Mass ◽  
Generation Model ◽  
Mass Generation ◽  
Telescope Array ◽  
Cherenkov Telescope ◽  
Neutrino Mass Generation

A modular A 4 symmetric scotogenic model for neutrino mass and dark matter

2021 ◽  
Author(s):  
Mitesh Kumar Behera ◽  
Shivaramakrishna Singirala ◽  
Subhasmita Mishra ◽  
R Mohanta
Keyword(s):  
Dark Matter ◽  
Neutrino Mass ◽  
Dirac Fermion ◽  
Dark Matter Candidate ◽  
Parameter Region ◽  
Mass Generation ◽  
Neutrino Mass Generation ◽  
Consistent Parameter ◽  
Radiative Mechanism ◽  
Lepton Flavour

Abstract Modular symmetries have been impeccable in neutrino and quark sectors. This motivated us, to propose a variant of scotogenic model based on modular $A_4$ symmetry and realize the neutrino mass generation at one-loop level through radiative mechanism. Alongside, we discuss the lepton flavour violating processes $\mu \to e \gamma$, $\mu \to3e$ and $\mu - e $ conversion in the nucleus. The lightest Dirac fermion turns out to be potential dark matter candidate, made stable by suitable assignment of modular weights. The relic density of the same has been computed with annihilations mediated by inert scalars and new $U(1)$ gauge boson. The LEP-II and ATLAS dilepton constraints on the new gauge parameters are suitably considered to show the consistent parameter region.

scholarly journals Dark matter and fundamental physics with the Cherenkov Telescope Array

2013 ◽  
Vol 43 ◽  
pp. 189-214 ◽  
Author(s):  
M. Doro ◽  
J. Conrad ◽  
D. Emmanoulopoulos ◽  
M.A. Sànchez-Conde ◽  
J.A. Barrio ◽  
...  
Keyword(s):  
Dark Matter ◽  
Fundamental Physics ◽  
Telescope Array ◽  
Cherenkov Telescope
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