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Collected Works: Recent submissions

  • Fixed pole in the virtual compton amplitude A2 
    Rajaraman R.; Rajasekaran G. (1971)
    We suggest here the presence of a J=0 fixed pole in the virtual Compton amplitude A2 with a residue linear in the photon mass q2 for all q2. The resultant sum rule is found to be consistent with the on-mass-shell (q2=0) ...
  • Sum rules from local current algebra 
    Gupta V.; Rajasekaran G. (1969)
    By combining the local current algebra with the commutation relations between the current densities and the Lorentz boost operator, we derive low-energy theorems as well as sum rules which involve neutrino and electron ...
  • Analysis of the neutral-current interaction in the inclusive neutrino reaction 
    Rajasekaran G.; Sarma K.V.L. (Indian Academy of Sciences, Bangalore, 1974)
    [No abstract available]
  • Classical solutions of a model of quark confinement 
    Rajasekaran G.; Srinivasan V. (Indian Academy of Sciences, Bangalore, 1978)
    We find the classical solutions of a model of quark confinement defined by the vanishing of colour currents. Both plane-wave type of solutions extending all over space as well as string-type of solutions confined to ...
  • A note on the annihilation of polarised e+e- beams into jets in the broken colour gauge theory 
    Lakshmibala S.; Rajasekaran G.; Rindani S.D. (1982)
    The dependence of angular distribution on polarisation for the processes of transverse or longitudinally polarised e+e- beams annihilating into two or three jets has been got from very general considerations. It is seen ...
  • Spin dependence of the charged-gluon contribution in deep-inelastic scattering 
    Mani H.S.; Rajasekaran G.; Rindani S.D. (1980)
    In the integer-charge quark model, it is found that because of the photon-gluon mixing, only the zero-helicity gluons couple to deep-inelastic probes. As a particular consequences, gluons do not contribute to the (longitudinal) ...
  • Contribution of gluons and coloured Higgs bosons to e+-e- annihilation into three jets 
    Lakshmibala S.; Rajasekaran G.; Rindani S.D. (1981)
    Three-jet thrust and angular distributions in e+e- annihilation are calculated in the integer-charge quark model. The complete contributions of gluons and Higgs scalars are presented. Deviations from QCD results are in ...
  • Neutral currents in left-right symmetric gauge models 
    Bajaj J.K.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 1979)
    We analyse all the neutral-current phenomena following from the general class of gauge models based on the group SU(2)L ⊗ SU(2)R ⊗ U(1). It is found that the neutral-current couplings in these models bear a remarkable ...
  • Non-renormalization of the weak vertex in gauge theories with integrally charged quarks 
    Rajasekaran G.; Sri Ram M.S. (Indian Academy of Sciences, Bangalore, 1982)
    We give current algebra arguments to show that to O(α) the colour octet vertices do not renormalize the effective weak vertex between colour singlet hadrons in models with broken colour symmetry. The result does not depend ...
  • Decays of W and Z in the broken-colour model 
    Lakshmibala S.; Rajasekaran G.; Rindani S.D. (Indian Academy of Sciences, Bangalore, 1985)
    The two-gluonic decay modes of W and Z in the broken colour model with integrally charged quarks are considered. The gluonic branching ratios are found to be 3% and 2·7% for W and Z respectively. The angular distributions ...
  • Erratum: Analysis of the neutral-current interaction in the inclusive neutrino reaction 
    Rajasekaran G.; Sarma K.V.L. (Indian Academy of Sciences, Bangalore, 1974)
    [No abstract available]
  • Phenomenology of neutrino oscillations 
    Rajasekaran G. (Indian Academy of Sciences, Bangalore, 2000)
    The phenomenology of solar, atmospheric, supernova and laboratory neutrino oscillations is described. Analytical formulae for matter effects are reviewed. The results from oscillations are confronted with neutrinoless ...
  • Interpretation of the recent Kolar events 
    Joshipura A.S.; Rajasekaran G.; Gupta V.; Sarma K.V.L. (Indian Academy of Sciences, Bangalore, 1989)
    We give plausible interpretations of the unusual events seen in the proton decay detector at Kolar Gold Fields indicating the existence of a massive (≳2GeV) long lived (10-8-10-9s) particle. We show that it is possible to ...
  • Radiative magnification of neutrino mixings in split supersymmetry 
    Mohapatra R.N.; Parida M.K.; Rajasekaran G. (2005)
    Radiative corrections to neutrino mixings in seesaw models depend on the nature of new physics between the weak and the grand unified theory (GUT)-seesaw scales and can be taken into account using the renormalization group ...
  • 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, ...
  • Solar and atmospheric neutrino oscillations with three flavors 
    Narayan M.; Murthy M.V.N.; Rajasekaran G.; Umasankar S. (1996)
    We analyze the solar and the atmospheric neutrino problems in the context of three flavor neutrino oscillations. We assume a mass hierarchy in the vacuum mass eigenvalues (formula presented), but make no approximation ...
  • 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 ...
  • 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 ...
  • 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. ...

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