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Collected Works of Prof. Rajasekaran: Recent submissions

  • General relations among observables in neutral-current phenomena mediated by one or two Z bosons 
    Parida M.K.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 1979)
    If μ-e universality is assumed, there are 17 neutral-current parameters of current experimental interest, including the parity-violating nuclear force sector. We deduce the general relations among these parameters implied ...
  • Empirical test for composite hadrons 
    Rajasekaran G. (1972)
    We describe an empirical test to distinguish hadrons which are composites in the low-threshold channels from those which can be understood only from a more global point of view. This test is based on the existence of a ...
  • Comments on "is bound charm found?" 
    Pasupathy J.; Rajasekaran G. (1975)
    The inadequacy of the Ansatz proposed by De Rújula and Glashow for explaining the meson masses is discussed. The importance of fixing the spin-parity of the abnormal parity states E(1420) and D(1285) for the possible success ...
  • Divergences of the higher-order corrections to μ decay in Weinberg's gauge theory 
    Rajasekaran G. (1972)
    The leading (quadratic) divergences in the second-order weak and electromagnetic corrections to μ decay are calculated in Weinberg's gauge theory and it is shown that, after renormalization, these divergences cancel. © ...
  • General bounds on the isovector coupling constants of the weak neutral current 
    Rajasekaran G.; Sarma K.V.L. (Indian Academy of Sciences, Bangalore, 1976)
    We show that experimental data on inclusive neutrino reactions can be used to obtain general bounds on the coupling constants of the isovector part of the hadronic weak neutral current provided this isovector current is ...
  • Contribution of coloured Higgs bosons to e+e- annihilation into two jets 
    Rajasekaran G.; Rindani S.D. (1981)
    We examine the effect of the coloured Higgs bosons (of the integer-charge quark model) on electron-positron annihilation into two jets. The overall angular distribution of the quark + gluon + Higgs jets in the scaling limit ...
  • Analysis of the neutral-current interaction in the inclusive neutrino reactions 
    Rajasekaran G.; Sarma K.V.L. (Indian Academy of Sciences, Bangalore, 1974)
    We attempt a general phenomenological analysis of the neutral weak current in the inclusive neutrino reactions using the parton model as a tool. From the recently reported data on these processes we determine the strength ...
  • Colour gluons and scaling in a unified gauge model 
    Rajasekaran G.; Roy P. (Indian Academy of Sciences, Bangalore, 1975)
    Deep inelastic weak and electromagnetic processes are considered within the parton framework taking the partons to be integrally charged quarks and coloured gluons. Despite the participation of the spin-one gluons in these ...
  • The electroweak mixing angle in unified gauge theories-the renormalisation effects 
    Bajaj J.K.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 1980)
    A general analysis of the renormalisation corrections to the unification results for the coupling constants of strong and electroweak interactions is attempted. In particular, the effects of introducing an energy scale ...
  • Two-photon production in pp and pp collisions 
    Jayaraman T.; Rajasekaran G.; Rindani S.D. (1986)
    We show that the process pp (pp)++X is a powerful test to distinguish between gauged integer-charged-quark models (ICQMs) and fractionally-charged- quark models (FCQMs). We study the ratio of the two-photon production cross ...
  • The possibility of two-gluon jets in electron-positron annihilation 
    Rajasekaran G.; Rindani S.S. (1979)
    The possibility of two-gluon jets in electron-positron annihilation is pointed out. Because of this gluon contribution, the overall angular distribution of the jets in the scaling limit is predicted to be 1 + 0.86cos2θ. © 1979.
  • Generation of gluons from quark confinement 
    Rajasekaran G.; Srinivasan V. (Indian Academy of Sciences, Bangalore, 1978)
    We study a model of quark confinement defined by the vanishing of colour currents. The model is shown to be equivalent to quantum chromodynamics and this equivalence is interpreted as due to the compositeness of the colour ...
  • Color gluon excitation at fermilab 
    Rajasekaran G.; Roy P. (1976)
    In unified gauge theories with color (excitable by lepton probes), color effects become manifest in the asymptotic region through gluon terms. Several new results pertaining to these are derived and quantitatively discussed. ...
  • Electron-positron annihilation into three jets in the integer-charge quark model 
    Rajasekaran G.; Rindani S.D. (1980)
    We discuss e+e− → 3 jets in the integer-charge qaurk model. In the lowest non-trivial order, ignoring coloured Higgs scalars, we find that three-gluon jets would be observable at present PETRA energies if the gluon mass ...
  • Constraints on the parameters of the left-right symmetric gauge models 
    Bajaj J.K.; Rajasekaran G. (1980)
    We find an important constraint on the parameters of the general four-parameter left-right symmetric model. The constraint links the v-hadron sector of the model with the parity-violation sector. Using this constraint along ...
  • Renormalizable theories from nonrenormalizable interactions 
    Rajasekaran G.; Srinivasan V. (Indian Academy of Sciences, Bangalore, 1977)
    By using Kikkawa's method the equivalence of the nonrenormalizable pair interaction {Mathematical expression} to a renormalizable theory is proved. Equivalence relationships between a few other nonrenormalizable and ...
  • 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]

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