Subhendu Rakshit
University of Calcutta
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Publication
Featured researches published by Subhendu Rakshit.
Physical Review D | 1999
Subhendu Rakshit; Gautam Bhattacharyya; Amitava Raychaudhuri
The nontrivial structure of the neutrino mass matrix, suggested by the recent Super-Kamiokande results and data from other neutrino experiments, can be reproduced in
Physical Review D | 2015
Najimuddin Khan; Subhendu Rakshit
R
Physics Letters B | 2000
Uma Mahanta; Subhendu Rakshit
-parity-violating supersymmetric theories. This requires sets of products of
International Journal of Modern Physics A | 2001
Debajyoti Choudhury; Sukanta Dutta; Subhendu Rakshit; Saurabh D. Rindani
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Physics Letters B | 2001
Debajyoti Choudhury; Biswarup Mukhopadhyaya; Subhendu Rakshit
-parity-violating trilinear couplings to take appropriately chosen values. It is shown that the existing constraints on these couplings are satisfied by these choices.
Journal of High Energy Physics | 2003
Debajyoti Choudhury; Biswarup Mukhopadhyaya; Subhendu Rakshit; Anindya Datta
The inert scalar doublet model of dark matter can be valid up to the Planck scale. We briefly review the bounds on the model in such a scenario and identify parameter spaces that lead to absolute stability and metastability of the electroweak vacuum.
Pramana | 2003
Raj Gandhi; Kamales Kar; Abhijit Bandyopadhyay; Rahul Basu; Pijushpani Bhattacharjee; Biswajoy Brahmachari; Debrupa Chakraborti; M. Chaudhury; J. Chaudhury; Sandhya Choubey; E. J. Chun; Atri Desmukhya; Anindya Datta; Gautam Dutta; Sukanta Dutta; A. Giri; Sourendu Gupta; Srubabati Goswami; Namit Mahajan; H.S. Mani; Asok K. Mukherjee; Biswarup Mukhopadhyaya; Surajit Nayak; M. Randhawa; Subhendu Rakshit; Asim K. Ray; Amitava Raychaudhuri; D. P. Roy; P. Roy; Suryadeep Roy
Abstract In this paper we study some of the low energy effects of a light stabilized radion field in the Randall–Sundrum scenario. We find that the NLC 500 with its projected precision level will be able to probe the radion contribution to κ v and λ v for values of 〈 φ 〉 up to 500 GeV. On the other hand the BNL E821 experiment will be able to test the radion contribution to a μ for 〈 φ 〉= 1 TeV and m φ ≤ m μ . We have also shown that the higgs-radion mixing induces a 2.6% correction in the WWh coupling. Finally by comparing the radionstralung process with the higgsstralung process we have found that the LEPI bound of 60 GeV on the higgs mass based on Z→hl l decay mode suggests a lower bound of about 35 GeV on the radion mass.
Pramana | 1998
Debajyoti Choudhury; Saurabh D. Rindani; B. Ananthanarayan; K.R.S. Balaji; Manuel Drees; Shashikant Dugad; Gautam Dutta; Sukanta Dutta; Naveen Gaur; Ambar Ghosal; W. Grimus; Ernest Ma; Shubhendra Mohanty; P. N. Pandita; M. K. Parida; Subhendu Rakshit; D. P. Roy; P. Roy; Sarira Sahu; N. Nimai Singh; Sudhir K. Vempati; Francesco Vissani
We study the CP even trilinear neutral gauge boson vertices at one-loop in the context of the Standard Model and the Minimal Supersymmetric Standard Model, assuming two of the vector bosons are on-shell. We also study the changes in the form-factors when these two bosons are off-shell.
Physical Review D | 2000
Gautam Bhattacharyya; Subhendu Rakshit; Amitava Raychaudhuri
Abstract We investigate the status of models containing exotic fermions or extra ( Z -like) neutral gauge bosons in the light of the recent data on anomalous magnetic moment of the muon. We find that it is possible to extract interesting bounds on the parameters characterizing such models. The bounds are particularly strong if the new flavour-changing neutral currents are axial vector-like.
arXiv: High Energy Physics - Phenomenology | 2018
Siddhartha Karmakar; Sujata Pandey; Subhendu Rakshit
If, in a supersymmetric model, the lightest chargino is nearly degenerate with the lightest neutralino, the former can decay into the latter alongwith a soft pion (or a lepton-neutrino pair). Near degeneracy of the chargino and neutralino masses can cause the other decay products (the pion or the lepton) to be almost invisible. Photon-photon colliders offer a possibility of clean detection of such an event through a hard photon tag.