Recently added

Collected Works of Prof. Rajasekaran: Recent submissions

  • Hexagonal SU(3) unification and its manifestation at the TeV scale 
    Cao Q.-H.; Chen S.-L.; Ma E.; Rajasekaran G. (American Physical Society, 2006)
    We consider SU(3)C×SU(2)AL×SU(2)BL×U(1)Y as the low-energy subgroup of supersymmetric SU(3)6 unification. This may imply small deviations from quark-lepton universality at the TeV scale, as allowed by neutron-decay data. ...
  • Solar neutrinos and the eclipse effect 
    Narayan M.; Rajasekaran G.; Sinha R.; Burgess C.P. (1999)
    The solar neutrino counting rate in a real time detector such as Super-Kamiokanda, SNO, or Borexino is enhanced due to neutrino oscillations in the Moon during a partial or total solar eclipse. The enhancement is calculated ...
  • Solar eclipse and neutrinos 
    Narayan M.; Rajasekaran G.; Sinha R. (1996)
    It is pointed out that due to neutrino oscillations the observed solar neutrino rate in the terrestrial neutrino detectors may be enhanced during a partial or total solar eclipse. The enhancement is calculated as a function ...
  • 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 ...
  • An SO(10) GUT with see-saw masses for all fermions 
    Desai B.R.; Rajasekaran G.; Sarkar U. (2005)
    We propose an SO(10) grand unified theory in which all fermions acquire see-saw masses. We include only two Higgs scalars, a 210-plet and a 16-plet. In addition to the regular fermions we include one singlet per generation, ...
  • Radiative stability of neutrino-mass textures 
    Parida M.K.; Das C.R.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 2004)
    Neutrino-mass textures proposed at high scales are known to be unstable against radiative corrections especially for nearly degenerate mass eigenvalues. We find a mechanism in a class of gauge models including 2HDM where ...
  • Erratum: Algebra for fermions with a new exclusion principle 
    Mishra A.K.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 1991)
    [No abstract available]
  • Threshold effects on quasidegenerate neutrinos with high-scale mixing unification 
    Mohapatra R.N.; Parida M.K.; Rajasekaran G. (American Physical Society, 2005)
    We consider threshold effects on neutrino masses and mixings in a recently proposed model for understanding large solar and atmospheric mixing angles using radiative magnification for the case of quasidegenerate neutrinos. ...
  • A new mechanism for neutrino mass 
    Divakaran P.P.; Rajasekaran G. (World Scientific Publishing Co. Pte Ltd, 1999)
    A mechanism for generating massive but naturally light Dirac neutrinos is proposed. It involves composite Higgs within the standard model as well as some new interaction beyond the standard model. According to this scenario, ...
  • Time-of-night variation of solar neutrinos 
    Narayan M.; Rajasekaran G.; Sinha R. (World Scientific Publishing Co. Pte Ltd, 1998)
    We investigate the time-of-night variation of solar neutrino rate which will be of relevance to super-Kamioka and Sudbury neutrino detectors in the framework of oscillations among the three flavors. An analytical method ...
  • Stability of the S matrix pole 
    Rajasekaran G.; Vasan S.S. (Indian Academy of Sciences, Bangalore, 1990)
    We show how the position and residue of the S matrix pole can remain stable under changes in the form of the parametrization of the S matrix elements. We also derive a relation among the shifts in the Breit-Wigner resonance ...
  • 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]
  • 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. ...

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