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69 papers · 1 filter
Unifying scheme for generating discrete integrable systems including inhomogeneous and hybrid models
Anjan Kundu
A unifying scheme based on an ancestor model is proposed for generating a wide range of integrable discrete and continuum as well as inhomogeneous and hybrid models. They include i…
Neutrinoless Double Beta Decay from Singlet Neutrinos in Extra Dimensions
G. Bhattacharyya, H. V. Klapdor-Kleingrothaus, H. Päs +1
We study the model-building conditions under which a sizeable -decay signal to the recently reported level of~0.4 eV is due to Kaluza--Klein singlet neutrinos in theories wit…
The Solar Neutrino Problem after the first results from Kamland
Abhijit Bandyopadhyay, Sandhya Choubey, Raj Gandhi +2
The first results from the KamLAND experiment have provided confirmational evidence for the Large Mixing Angle (LMA) MSW solution to the solar neutrino problem. We do a global anal…
R-Parity violation in B --> pi+ pi- decay
Gautam Bhattacharyya, Amitava Datta, Anirban Kundu
We consider the impact of R-parity violating suprsymmetry in the nonleptonic decay B --> pi+ pi-. This is one of the rare instances where new physics contributes to both B-Bbar mix…
Asymptotically non-flat rotating dilaton black holes
Tanwi Ghosh, P. Mitra
Dilaton black hole solutions which are neither asymptotically flat nor (anti)-de Sitter but reduce to asymptotically flat solutions in some special limits have been known for a Lio…
Fibonacci-Hubbard Chain at Zero and Finite Temperatures
Sanjay Gupta, Shreekantha Sil, Bibhas Bhattacharyya
We have studied finite-sized single band Hubbard chains with Fibonacci modulation for half filling within a mean field approximation. The ground state properties, together with the…