Abstract
A consistent method to remove quark mass singularities from physical cross sections is demonstrated. They are factorised into quark and gluon distribution functions. This implies electromagnetic correction terms to theQ 2 dependent structure functions. They are calculated in leading order in the fine structure constant α and found to be flat and small overx.
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Kripfganz, J., Perlt, H. Electroweak radiative corrections and quark mass singularities. Z. Phys. C - Particles and Fields 41, 319–321 (1988). https://doi.org/10.1007/BF01566932
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DOI: https://doi.org/10.1007/BF01566932