TMDs: Evolution, modeling, precision
1 Dipartimento di Fisica, Università di Cagliari, and INFN, Sezione di Cagliari, Cittadella Universitaria di Monserrato, I-09042 Monserrato ( CA), Italy
2 NIKHEF and Department of Physics and Astronomy, VU University Amsterdam, De Boelelaan 1081, NL-1081 HV Amsterdam, the Netherlands
3 Dipartimento di Fisica, Università di Torino, Via P. Giuria 1, I-10125 Torino, Italy
4 Departamento de Física Teórica II, Universidad Complutense de Madrid, 28040 Madrid, Spain
Published online: 23 January 2015
The factorization theorem for qT spectra in Drell-Yan processes, boson production and semi-inclusive deep inelastic scattering allows for the determination of the non-perturbative parts of transverse momentum dependent parton distribution functions. Here we discuss the fit of Drell-Yan and Z-production data using the transverse momentum dependent formalism and the resummation of the evolution kernel. We find a good theoretical stability of the results and a final χ2/points ≲ 1. We show how the fixing of the non-perturbative pieces of the evolution can be used to make predictions at present and future colliders.
© Owned by the authors, published by EDP Sciences, 2015
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