QED Radiative Corrections for Parton Distributions

Details QED Radiative Corrections for Parton Distributions QED Radiative Corrections for Parton Distributions

1994-12-13

arxiv.org/abs/hep-ph/9412286v1

Phys.Rev. D52 (1995) 4936-4940

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, uuencoded latex with postscript, 3 figures included

Scientific paper

10.1103/PhysRevD.52.4936

I discuss radiative corrections due to the emission of photons from quarks which contribute to deep inelastic lepton--nucleon scattering as well as to $pp$ collisions at high energies. These corrections are dominated by quark-mass singularities which have to be absorbed into the parton distribution functions. Observable effects appear as a modification of the $Q^2$ dependence of the distribution functions. Numerical results indicate, however, that these QED corrections are negligible except at extremely large $Q^2$ and large $x$. Therefore it is safe to neglect the single and multiple photon effects in $pp$ scattering at LHC energies.

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