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Photon structure functions beyond the SUSY threshold

  • D.A. Ross
  • L.J. Weston
Theoretical physics

Abstract.

We evolve virtual photon parton densities up to the SUSY threshold and higher using coupled inhomogeneous DGLAP differential equations. Reliable input parameterizations were available from the c-quark threshold. Limited \(P^2\) (target photon virtuality) dependence is observed. The difference to the photon structure function is shown to be significant with the introduction of SUSY dependent splitting functions. A negligible difference is observed by letting the gluino mass enter after the squark mass. An effort is made to include the squark threshold effect in such a way that both the renormalization group equations are satisfied and the perturbative calculation is reproduced.

Keywords

Differential Equation Input Parameterization Structure Function Renormalization Group Group Equation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • D.A. Ross
    • 1
  • L.J. Weston
    • 1
  1. 1.Department of Physics and Astronomy, University of Southampton, Southampton S017 1BJ, UK GB

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