Umberto D'Alesio, Miguel G. EchevarrÃa, Stefano Melis, Ignazio Scimemi
Published 2014-10-16Version 1
The factorization theorem for $q_T$ 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 $\chi^2/{\rm points}\lesssim 1$. We show how the fixing of the non-perturbative pieces of the evolution can be used to make predictions at present and future colliders.
Comments: 6 pages, 3 pdf figures, uses webofc.cls. Invited talk delivered by I. Scimemi at the Fourth International Workshop on "Transverse Polarisation Phenomena in Hard Processes" (Transversity 2014), Chia, Cagliari, Italy, June 9-13, 2014. To appear in EPJ Web of Conferences
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