Data di Pubblicazione:
2009
Citazione:
Transverse-momentum resummation : a perturbative study of Z production at the Tevatron / G. Bozzi, S. Catani, D. De Florian, G. Ferrera, M. Grazzini. - In: NUCLEAR PHYSICS. B. - ISSN 0550-3213. - 815:1/2(2009 Jul 01), pp. 174-197.
Abstract:
We consider transverse-momentum (q_T) resummation for Drell--Yan lepton pair production in hadron collisions. At small values of q_T, the logarithmically-enhanced QCD contributions are resummed up to next-to-leading logarithmic accuracy. At intermediate and large values of q_T, resummation is consistently combined with the fixed-order perturbative result. We present numerical results for e^+e^- pairs from the decay of Z bosons produced at Tevatron energies. We perform a detailed study of the scale dependence of the results to estimate the corresponding perturbative uncertainty. We comment on the comparison with the available Tevatron data.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
G. Bozzi, S. Catani, D. De Florian, G. Ferrera, M. Grazzini
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