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Search: authors:"Joydeep Chakrabortty"

4 papers found.
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Natural emergence of neutrino masses and dark matter from R-symmetry

We propose a supersymmetric extension of the Standard Model (SM) with a continuous global U(1) R symmetry. The R-charges of the SM fields are identified with that of their lepton numbers. As a result, both bilinear and trilinear ‘R-parity violating’ (RPV) terms could be present at the superpotential. However, R-symmetry is not an exact symmetry as it is broken by supergravity...

Non-universal gaugino mass models under the lamppost of muon (g-2)

In unified \( \mathcal{N}=1 \) supergravity scenario the gaugino masses can be non-universal. The patterns of these non-universalities are dictated by the vacuum expectation values of non-singlet chiral super-fields in visible sector. Here, we have analysed the model independent correlations among the gaugino masses with an aim to explain the [1 ÷ 3]σ excess of muon (g-2) (Δa...

Non-universal gaugino mass GUT models in the light of dark matter and LHC constraints

We perform a comprehensive study of SU(5), SO(10) and E(6) supersymmetric GUT models where the gaugino masses are generated through the F-term breaking vacuum expectation values of the non-singlet scalar fields. In these models the gauginos are non-universal at the GUT scale unlike in the mSUGRA scenario. We discuss the properties of the LSP which is stable and a viable candidate...