48 citations · 109 across the 8 of their papers we have counts for
19 papers
Mixed Neutralino Dark Matter in Nonuniversal Gaugino Mass Models
Utpal Chattopadhyay, Debottam Das, D. P. Roy
We have considered nonuniversal gaugino mass models of supergravity, arising from a mixture of two superfield contributions to the gauge kinetic term, belonging to a singlet and a…
Using Tau Polarization to probe the Stau Co-annihilation Region of mSUGRA Model at LHC
R. M. Godbole, Monoranjan Guchait, D. P. Roy
The mSUGRA model predicts the polarization of the tau coming from the stau to bino decay in the co-annihilation region to be +1. This can be exploited to extract this soft tau sign…
Probing the Two Greatest Mysteries of the Universe
D. P. Roy
The neutrinoless double beta decay and the direct dark matter detection experiments probe the origins of the two greatest mysteries of the universe, i.e. the baryon asymmetry and t…
SUSY Search in Future Collider and Dark Matter Experiments
D. P. Roy
The lightest superparticle in the MSSM is expected to be a Bino, Higgsino or Wino. We consider the dark matter abundance constraint on these LSP scenarios in the minimal SUGRA and…
Looking for a heavy wino LSP in collider and dark matter experiments
Utpal Chattopadhyay, Debottam Das, Partha Konar +1
We investigate the phenomenology of a wino LSP as obtained in AMSB and some string models. The WMAP constraint on the DM relic density implies a wino LSP mass of 2.0-2.3 TeV. We fi…
Looking for a Heavy Higgsino LSP in Collider and Dark Matter Experiments
Utpal Chattopadhyay, Debajyoti Choudhury, Manuel Drees +2
A large part of the mSUGRA parameter space satisfying the WMAP constraint on the dark matter relic density corresponds to a higgsino LSP of mass TeV. We find a promising…