• D P Rath

      Articles written in Pramana – Journal of Physics

    • Nucleon octet in a relativistic logarithmic potential

      S N Jena D P Rath

      More Details Abstract Fulltext PDF

      A simple independent-quark-model based on the Dirac equation with logarithmic potential is used to calculate several properties of octet baryons such as magnetic moment, the axial vector coupling constantgA (n) for neutronβ-decay and the charge radius of the proton. In view of the simplicity of the model, the results obtained are quite good.

    • A quark model study of semileptonic baryon decays in the electronic decay modes

      D P Rath S N Jena

      More Details Abstract Fulltext PDF

      A relativistic quark model based on Dirac equation with the independent-quark confining potential of the form (1 +γ0)[a ln(r/b)] is used to compute the weak electric and magnetic form factors for semileptonic baryonic decays in the electronic decay modes. The values obtained for (g2/g1) agree with the non relativistic results and those for (f2/f1) agree with the MIT bag model values of Donoghue and Holstein. The SU(3) symmetry breaking does not generate appreciable departures in (f2/f1) values from corresponding Cabibbo values.

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