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    • Keywords


      Colour gauge theory; integral and fractional charge quarks; spontaneous symmetry breaking; colour gluons; Drell-Yan process

    • Abstract


      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.

    • Author Affiliations


      P N Pandita1 Sudhir Paranjape1

      1. Tata Institute of Fundamental Research, Bombay - 400 005
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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