• Sudhir Paranjape

      Articles written in Pramana – Journal of Physics

    • Colour effects in Drell-Yan process

      P N Pandita Sudhir Paranjape

      More Details Abstract Fulltext PDF

      We examine the predictions of gauge theories with colour excitation for the processppμ+μX. Relative to the predictions of quark parton model (with three colours) we find enhancements as large as a factor 3 – 4 for the cross-sectionM3d2σ/dMdy|y=0 in the region 0·03 ≲M/√s ≲ 0·2 at √s=62 GeV,M being the invariant mass andy the rapidity of the muon pair. We study the sensitivity of this result to the colour gluon mass and the underlying parametrisation of the quark and gluon distribution functions.

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