Photon Structure Functions Beyind the SUSY Threshold

D. A. Ross; L. J. Weston

doi:10.1007/s100520000552

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arXiv · hep-ph/0008275

Photon Structure Functions Beyind the SUSY Threshold

D. A. Ross·L. J. Weston

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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.

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D. A. Ross, L. J. Weston. 2000-08-25. Photon Structure Functions Beyind the SUSY Threshold. https://doi.org/10.1007/s100520000552

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