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Collected Works of Prof. Rajasekaran: Recent submissions

  • Fields with vanishing colour-currents 
    Rajasekaran G.; Srinivasan V.; Ram M.S.S. (Springer India, 1985)
    We consider spinor, scalar and vector fields with colour degrees of freedom and find the classical solutions when the constraint of vanishing colour currents is imposed. We find that there are no non-trivial c-number ...
  • Radiative decays, photoproduction and total cross section of the ψ particles 
    Sarma K.V.L.; Rajasekaran G.; Pasupathy J. (Indian Academy of Sciences, Bangalore, 1976)
    It is pointed out that the coupling characterizing the ψ-γ vertex must change substantially between the limits, ψ on mass-shell which occurs in ψ→e+ e- and photon on mass-shell which is relevant in radiative decays like ...
  • Model-independent analysis of the neutral-current interaction in the inclusive neutrino reactions 
    Rajasekaran G.; Sarma K.V.L. (Indian Academy of Sciences, Bangalore, 1974)
    On the basis of some general assumptions on the deep inelastic structure functions, such as scaling and chiral symmetry we determine the values of {(HV3)2+(HA3)2}+η{(HV0)2+(HA0)2} and HV3 HA3+ηHV0 HA0 where HV3,0 and HA3,0 ...
  • Theoretical implications of the resonance anomalies in the e+-e- system 
    Pakvasa S.; Rajasekaran G.; Tuan S.F. (1975)
    The phenomenological properties of the recent resonance anomalies at 3.1 GeV and 3.7 GeV in e+-e- systems are confronted in a fairly systematic way with models presently known to us. These include charm-related models, ...
  • General space-time structure of the neutral-current interactions 
    Pakvasa S.; Rajasekaran G. (1975)
    We present a general analysis of the neutral-current inclusive cross section taking into account all the covariants (scalar, pseudoscalar, tensor, vector, and axial-vector) in the interaction. We derive the model-independent ...
  • Effective-dipole form-factors for the Kl3-decay 
    Chhajlany S.C.; Pandit L.K.; Rajasekaran G. (1971)
    To describe the latest experimental situation on the Kl3 decays (which shows large λ+≈0.07 along with a ξ≈-0.9), effective-dipole form-factors, satisfying exact results of first order breaking of the chiral SU3 ⊗ SU3 ...
  • Scaling and the asymptotic behaviour of form factors 
    Divakaran P.P.; Rajasekaran G. (1973)
    It is shown that if all spin averaged matrix elements for the production of an arbitrary hadronic state |i> by the absorption of a virtual photon of momentum q on a proton vanish as q2→∞ (space-like), and if this ...
  • Bounds on the coupling constants of the neutral current 
    Rajasekaran G.; Sarma K.V.L. (1975)
    We derived bounds on the coupling constants which characterize the strengths of the various pieces of the weak hadronic neutral current using isospin invariance of strong interactions alone. For the numerical evaluation ...
  • Erratum: Fixed pole in the virtual compton amplitude A2 
    Rajaraman R.; Rajasekaran G. (1971)
    [No abstract available]
  • 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 ...
  • The mass of the electron neutrino and electron capture in 163Ho 
    Yasumi S.; Rajasekaran G.; Ando M.; Ochiai F.; Ikeda H.; Ohta T.; Stefan P.M.; Maruyama M.; Hashimoto N.; Fujioka M.; Ishii K.; Shinozuka T.; Sera K.; Omori T.; Izawa G.; Yagi M.; Masumoto K.; Shima K. (1983)
    To determine the mass of the electron neutrino, electron capture in 163Ho was studied. From the intensity of M X-rays and the total number of 163Ho atoms in a source, as determined by the PIXE method, the partial M-capture ...
  • The recent single-tag two-photon experiments at petra and the issue of quark charges 
    Godbole R.M.; Pati J.C.; Rindani S.D.; Jayaraman T.; Rajasekaran G. (1984)
    The data of recent single-tag two-photon experiments indicating noticeable excess in (Rγγ)jet over fractionally charged quark-parton model-predictions is studied from the point of view of its implications on the gauge ...
  • Direct photon production in e+e- collisions 
    Jayaraman T.; Rajasekaran G.; Rindani S.D. (1985)
    We study the process e+e-+X as a possible test to distinguish between fractionally-charged-quark models and gauged integer-charged-quark models. We find that charge-asymmetry measurement in this process would not distinguish ...
  • Do the PETRA two-photon jet experiments rule out integrally charged quarks? 
    Jayaraman T.; Rajasekaran G.; Rindani S.D. (1982)
    The data on two-jet production in the PETRA single-tag two-photon experiments have been analyzed in the integer-charge quark model based on a spontaneously broken SU(3) colour gauge theory. The results show that the model ...
  • Large-N gauge theory of loops and strings. II 
    Bohr H.; Rajasekaran G. (1985)
    A QCD model that is constructed entirely in terms of gauge-invariant composite fields, i.e., Wilson loops and strings as a nonlocal SU(N) gauge theory, will be approximately solved in this article. A scattering theory is ...
  • Large-N gauge theory of loops and strings. I 
    Bohr H.; Rajasekaran G. (1985)
    A large-N gauge model is constructed entirely in terms of gauge-invariant composite fields. The model is formulated in a canonical framework where the Hamiltonian contains only the Wilson-loop and string operators and their ...
  • Erratum: Color gluon excitation at Fermilab 
    Rajasekaran G.; Roy P. (1976)
    [No abstract available]
  • Neutral current cross-sections for neutrinos on protons 
    Rajasekaran G.; Sarma K.V.L. (Indian Academy of Sciences, Bangalore, 1978)
    Defining the ratios rp =σ(vp →vx)/σ(vp →μ- x) and {Mathematical expression} we obtain the bounds 0.28 ≤rp ≤ 0.61 and {Mathematical expression} using only the parton model and the data of CDHS group with iron target. We ...
  • 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.

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