Lawrence Berkeley National Laboratory
Scheme dependence and transverse momentum distribution interpretation of Collins-Soper-Sterman resummation
- Author(s): Prokudin, A
- Sun, P
- Yuan, F
- et al.
Published Web Locationhttps://doi.org/10.1016/j.physletb.2015.09.064
© 2015 The Authors. Following an earlier derivation by Catani, de Florian and Grazzini (2000) on the scheme dependence in the Collins-Soper-Sterman (CSS) resummation formalism in hard scattering processes, we investigate the scheme dependence of the Transverse Momentum Distributions (TMDs) and their applications. By adopting a universal C-coefficient function associated with the integrated parton distributions, the difference between various TMD schemes can be attributed to a perturbative calculable function depending on the hard momentum scale. We further apply several TMD schemes to the Drell-Yan process of lepton pair production in hadronic collisions, and find that the constrained non-perturbative form factors in different schemes are consistent with each other and with that of the standard CSS formalism.