Recently added

DSpace at IMSc: Recent submissions

  • Supersymmetric model of the muon anomalous magnetic moment and neutrino masses 
    Adhikari R.; Ma E.; Rajasekaran G. (2002)
    We propose the novel lepton-number relationship Lτ=Le + Lμ, which is uniquely realized by the interaction (ν̂eμ̂ - êμ̂μ in supersymmetry and may contribute to the muon anomalous magnetic moment. Neutrino masses (with ...
  • Fock space representation of differential calculus on the noncommutative quantum space 
    Mishra A.K.; Rajasekaran G. (American Institute of Physics Inc., 1997)
    A complete Fock space representation of the covariant differential calculus on quantum space is constructed. The consistency criteria for the ensuing algebraic structure, mapping to the canonical fermions and bosons and ...
  • "Infinite statistics" and its two-parameter q-deformation 
    Mishra A.K.; Rajasekaran G. (1994)
    We generalize Greenberg's q-mutator algebra for infinite statistics to the most general form invariant under unitary transformations in the indices and study its consequences. Constraints on the parameter space arising ...
  • Rosenbluth scattering with Pauli moment for the electron 
    Basu R.; Murthy M.V.N.; Rajasekaran G. (1991)
    The authors show that the explicit inclusion of the effect of the anomalous magnetic moment for the electron in the electron-proton scattering cross section leads to contradictions with experimental data.
  • Superstrings: Another view 
    Rajasekaran G.; Tuan S.F. (1987)
    [No abstract available]
  • Three inequivalent mass-degenerate Majorana neutrinos and a scenario of their splitting for neutrino oscillations 
    Adhikari R.; Ma E.; Rajasekaran G. (2000)
    The mass matrix of three Majorana neutrinos of equal mass is not necessarily proportional to the identity matrix, but expressible in terms of two angles and one phase. We discuss how such a mass matrix may be stable or ...
  • Neutrinos from stellar collapse: Comparison of signatures in water and heavy water detectors 
    Dutta G.; Indumathi D.; Murthy M.V.N.; Rajasekaran G. (American Physical Society, 2001)
    Signatures of neutrino and antineutrino signals from stellar collapse in heavy water detectors are contrasted . with those in water detectors. The effects of mixing, especially due to the highly dense matter in the supernova ...
  • Light sterile neutrinos from large extra dimensions 
    Ma E.; Rajasekaran G.; Sarkar U. (2000)
    An experimentally verifiable Higgs-triplet model of neutrino masses from large extra dimensions was recently proposed. We extend it to accommodate a light sterile neutrino which also mixes with the three active neutrinos. ...
  • Neutrino condensate as origin of dark energy 
    Bhatt J.R.; Desai B.R.; Ma E.; Rajasekaran G.; Sarkar U. (2010)
    We propose a new solution to the origin of dark energy. We suggest that it was created dynamically from the condensate of a singlet neutrino at a late epoch of the early Universe through its effective self-interaction. ...
  • Möller and Bhabha scattering in the noncommutative standard model 
    Das P.K.; Deshpande N.G.; Rajasekaran G. (2008)
    We study the Möller and Bhabha scattering in the noncommutative extension of the standard model using the Seiberg-Witten maps of this to first order of the noncommutative parameter θμν. We look at the angular distribution ...
  • Standard model, Higgs Boson and what next? 
    Rajasekaran G. (Indian Academy of Sciences, Bangalore, 2012)
    One hundred years of Fundamental Physics, starting with discoveries such as radioactivity and electron, have culminated in a theory which is called the Standard Model of High Energy Physics. This theory is now known to be ...
  • High energy physics in 2012 
    Rajasekaran G. (2012)
    Correspondence
  • Profound truths 
    Rajasekaran G. (2011)
    [No abstract available]
  • An angle to tackle the neutrinos 
    Rajasekaran G. (2012)
    Commentary
  • Group velocity of neutrino waves 
    Indumathi D.; Kaul R.K.; Murthy M.V.N.; Rajasekaran G. (2012)
    We follow up on the analysis of Mecozzi and Bellini (arXiv:1110.1253v1) where they showed, in principle, the possibility of superluminal propagation of neutrinos, as indicated by the recent OPERA result. We refine the ...
  • Keynote address: High energy physics in 2014 and its future 
    Rajasekaran G. (Indian Academy of Sciences, Bangalore, 2016)
    After a brief history, we focus on the present status of HEP and its possible future. Ideas to ensure a healthy growth of HEP in India are discussed. This involves a few major experimental projects in fundamental physics. ...
  • Was dark matter detected in India 40 years ago? 
    Rajasekaran G. (Indian Academy of Sciences, Bangalore, 2016)
    This paper is based on a paper written byMV NMurthy and G Rajasekaran, Pramana- J. Phys. 82, L609 (2014); arXiv:1305.2715. The possibility of the unexplained Kolar events, recorded in the 1970s and 1980s, being due to the ...
  • High scale mixing relations as a natural explanation for large neutrino mixing 
    Abbas G.; Abyaneh M.Z.; Biswas A.; Gupta S.; Patra M.; Rajasekaran G.; Srivastava R. (World Scientific Publishing Co. Pte Ltd, 2016)
    The origin of small mixing among the quarks and a large mixing among the neutrinos has been an open question in particle physics. In order to answer this question, we postulate general relations among the quarks and the ...
  • Working group report: Neutrino physics 
    Choubey S.; Indumathi D.; Agarwalla S.; Bandyopadhyay A.; Bhattacharyya G.; Chun E.J.; Dasgupta B.; Dighe A.; Ghoshal P.; Giri A.K.; Goswami S.; Hirsch M.; Kajita T.; Kaplinghat M.; Mani H.S.; Mohanta R.; Murthy M.V.N.; Pakvasa S.; Parida M.K.; Rajasekaran G.; Ray S.; Rodejohann W.; Roy P.; Umasankar S.; Schwetz T.; Sinha N. (Indian Academy of Sciences, Bangalore, 2009)
    This is the report of the neutrino physics working group at WHEPP-X. We summarize the problems selected and discussed at the workshop and the papers which have resulted subsequently. © Indian Academy of Sciences.
  • Anomalous Kolar events revisited: Dark matter? 
    Murthy M.V.N.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 2014)
    The possibility of the unexplained Kolar events, recorded in the 1970s and 1980s, being due to the decays of dark matter particles of mass in the range of 510 GeV, is pointed out. © Indian Academy of Sciences.