Associated production of one particle and a Drell-Yan pair in hadronic collisions

作者：Ceccopieri Federico Alberto^*

来源：Physics Letters B, 2011, 703(4): 491-497.

DOI：10.1016/j.physletb.2011.08.038

• Collinear factorization
• Fracture functions
• Drell-Yan process

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.

• 出版日期2011-9-20