Associated production of one particle and a Drell-Yan pair in hadronic collisions |
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Authors: | Federico Alberto Ceccopieri |
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Affiliation: | IFPA, Université de Liège, Allée du 6 août, Bât B5a, 4000 Liège, Belgium |
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Abstract: | We propose a collinear factorization formula for the associated production of one particle and a Drell-Yan pair in hadronic collisions. It is shown that additional collinear singularities appearing in the next-to-leading order calculations that cannot be factorized into parton and fragmentation functions are systematically renormalized by introducing fracture functions. Next-to-leading order coefficient functions for cross-sections double differential in the fractional energy of the identified hadron and lepton pair invariant mass are presented. |
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Keywords: | Collinear factorization Fracture functions Drell-Yan process |
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