Recently added

DSpace at IMSc: Recent submissions

  • An algebra for ordered particles 
    Mishra A.K.; Rajasekaran G. (1995)
    We construct an algebra of creation and destruction operators for a system whose multiparticle states have the property that the permutation of coordinates is forbidden. Although this "null statistics" can be related to a ...
  • Quantum interference effects in a generalised Kaluza-Klein theory 
    Parthasarathy R.; Nagarajan R.; Rajasekaran G. (1987)
    The change in the phase of the wavefunction of a test particle in a (4+n)-dimensional Kaluza-Klein theory is computed. It is found to contain the gravitational and non-Abelian phase shifts separately and simultaneously.
  • e+e-→γ+2 jets as a test of quark charges 
    HE X.G.; Pakvasa S.; Rajasekaran G.; Rindani S.D. (1987)
    It is shown that angular distribution in e+e-→γ+2 jets can serve as a possible test of quark charges but only above color threshold. © 1987.
  • High scale mixing unification and large neutrino mixing angles 
    Mohapatra R.N.; Parida M.K.; Rajasekaran G. (2004)
    Starting with the hypothesis that quark and lepton mixings are identical at or near the grand unified theory scale, we show that the large solar and atmospheric neutrino mixing angles together with the small reactor angle ...
  • New "square root" model of lepton family cyclic symmetry 
    Ma E.; Rajasekaran G. (American Physical Society, 2003)
    Following the newly formulated notion of form invariance of the neutrino mass matrix, a complete model of leptons is constructed. It is based on a specific unitary 3×3 matrix U in family space, such that U2 is the simple ...
  • 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]
  • Neutrinos from stellar collapse: Comparison of the effects of three and four flavor mixings 
    Dutta G.; Indumathi D.; Murthy M.V.N.; Rajasekaran G. (2000)
    We study the effect of non-vanishing masses and mixings among neutrino flavors on the detection of neutrinos from stellar collapse by a water Cherenkov detector. We consider a framework in which there are four neutrino ...
  • Neutrinos from stellar collapse: Effects of flavor mixing 
    Dutta G.; Indumathi D.; Murthy M.V.N.; Rajasekaran G. (2000)
    We study the effect of nonvanishing masses and mixings among neutrino flavors on the detection of neutrinos from stellar collapse by a water Cherenkov detector. We consider a realistic framework in which there are three ...
  • 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. ...
  • Algebras of creation and destruction operators 
    Mishra A.K.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 1993)
    A general analysis of bilinear algebras of creation and destruction operators is performed. Generalizing the earlier work on the single-parameter q-deformation of the Heisenberg algebra, we study two-parameter and ...
  • Algebra for fermions with a new exclusion principle 
    Mishra A.K.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 1991)
    We construct the algebra of the creation and destruction operators for spin 1/2 particles obeying a new exclusion principle which is "more exclusive" than Pauli's exclusion principle: an orbital state shall not contain ...
  • Bi-large neutrino mixings by radiative magnification 
    Mohapatra R.N.; Parida M.K.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 2004)
    Starting with the unification hypothesis of mixings of quarks and leptons and small quark-like mixings at the see-saw scale, we find that two large mixings for νe, -νμ and νμ - ντ at the weak scale are obtained as a result ...
  • Neutrino oscillation probabilities: Sensitivity to parameters 
    Indumathi D.; Murthy M.V.N.; Rajasekaran G.; Sinha N. (2006)
    We study in detail the sensitivity of neutrino oscillation probabilities to the fundamental neutrino parameters and their possible determination through experiments. The first part of the paper is devoted to the broad theme ...
  • 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.