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TMDs: Evolution, modeling, precision

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D'Alesio, Umberto and Echevarria, Miguel G. and Melis, Stefano and Scimemi, Ignazio (2015) TMDs: Evolution, modeling, precision. EPJ Web of Conferences, 85 . ISSN 2100-014X

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Official URL: http://dx.doi.org/10.1051/epjconf/20158502003




Abstract

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 chi(2)/points less than or similar to 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.


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© Owned by the authors, published by EDP Sciences, 2015.
International Workshop on Transverse Polarisation Phenomena in Hard Processes (TRANSVERSITY) (4. 2014. Cagliari, Italia).
U.D. is grateful to the Department of Theoretical Physics II of the Universidad Complutense of Madrid for the kind hospitality extended to him since the earlier stages of this work. M.G.E. is supported by the “Stichting voor Fundamenteel Onderzoek der Materie” (FOM), which is financially supported by the “Nederlandse Organisatie voor Wetenschappelijk Onderzoek” (NWO). U.D. and S.M. acknowledges support from the European Community under the FP7 program “Capacities - Research Infrastructures” (HadronPhysics3, Grant Agreement 283286). S.M. is partly supported by the “Progetto di Ricerca Ateneo/CSP” (codice TO-Call3-2012-0103). I.S. is supported by the Spanish MECD grant, FPA2011-27853-CO2-02.

Uncontrolled Keywords:Vector-boson production; Transverse-momentum; Root-S=1.8 tev; Cross-section; Collisions; Pairs
Subjects:Sciences > Physics > Physics-Mathematical models
Sciences > Physics > Mathematical physics
ID Code:30046
Deposited On:12 May 2015 09:09
Last Modified:10 Dec 2018 15:09

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