• D P Roy

      Articles written in Pramana – Journal of Physics

    • Scale breaking in neutrino scattering

      D P Roy S Paranjape P N Pandita D K Choudhury

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      We consider two types of scale breaking models—one based on asymptotically free gauge theory and the other phenomenological—which have already been fitted to the electron and muon data. Their predictions for the neutrino scattering are worked out and the sensitivity on the model parameters and the input electron data studied. The effects of scale breaking at very lowQ2 and of a finite longitudinal cross-section are incorporated in analogy withep data. The predictions are compared with the recent neutrino scattering data.

    • R-parity violating SUSY model

      D P Roy

      More Details Abstract Fulltext PDF

      This is a phenomenological review ofR parity violating SUSY models, with particular emphasis on explicitR parity violation.

    • Neutrino mass and oscillation: An introductory review

      D P Roy

      More Details Abstract Fulltext PDF

      After a brief introduction to neutrino mass via the see-saw model I discuss neutrino mixing and oscillation, first in vacuum and then its matter enhancement. Then the solar and atmospheric neutrino oscillation data are briefly reviewed. Finally I discuss the problem of reconciling hierarchical neutrino masses with at least one large mixing, as implied by these data. A minimal see-saw model for reconciling the two is discussed.

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