9 papers
Unitarity violation in sequential neutrino mixing in a model of extra dimensions
Subhaditya Bhattacharya, Paramita Dey, Biswarup Mukhopadhyaya
We investigate the possibility of unitarity violation in the sequential neutrino mixing matrix in a scenario with extra compact spacelike dimensions. Gauge singlet neutrinos are as…
A Randall-Sundrum scenario with bulk dilaton and torsion
Biswarup Mukhopadhyaya, Somasri Sen, Soumitra SenGupta
We consider a string-inspired torsion-dilaton-gravity action in a Randall-Sundrum brane world scenario and show that, in an effective four-dimensional theory on the visible brane,…
Signals of supersymmetry with inaccessible first two families at the Large Hadron Collider
Nishita Desai, Biswarup Mukhopadhyaya
We investigate the signals of supersymmetry (SUSY) in a scenario where only the third family squarks and sleptons can be produced at the Large Hadron Collider (LHC), in addition to…
The impossibility of heavy neutrino dark matter in the Littlest Higgs Model with T-parity: constraints from direct search
Paramita Dey, Sudhir Kumar Gupta, Biswarup Mukhopadhyaya
We consider the Littlest Higgs Model with T-parity (LHT), in the parameter region where a heavy neutrino is the lightest T-odd particle (LTP). Having emphasized that this correspon…
Non-universal gaugino and scalar masses, hadronically quiet trileptons and the Large Hadron Collider
Subhaditya Bhattacharya, AseshKrishna Datta, Biswarup Mukhopadhyaya
We investigate the parameter space of the minimal supersymmetric Standard Model (MSSM) where the gluino and squark masses are much above 1 TeV but the remaining part of the spartic…
Signatures of gaugino mass non-universality in cascade Higgs production at the LHC
Priyotosh Bandyopadhyay, AseshKrishna Datta, Biswarup Mukhopadhyaya
Supersymmetric cascades, involving charginos and neutralinos at various stages, contribute in a significant way to Higgs production at the LHC. We explore the nature of such cascad…