Production of Drell–Yan lepton pairs in hadron collisions : transverse-momentum resummation at next-to-next-to-leading logarithmic accuracy
Articolo
Data di Pubblicazione:
2011
Citazione:
Production of Drell–Yan lepton pairs in hadron collisions : transverse-momentum resummation at next-to-next-to-leading logarithmic accuracy / G. Bozzi, S. Catani, G. Ferrera, D. De Florian, M. Grazzini. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 696:3(2011), pp. 207-213. [10.1016/j.physletb.2010.12.024]
Abstract:
We consider the transverse-momentum (qT) distribution of Drell–Yan lepton pairs produced in hadron collisions. At small values of qT, we resum the logarithmically-enhanced perturbative QCD contributions up to next-to-next-to-leading logarithmic accuracy. At intermediate and large values of qT, we consistently combine resummation with the known next-to-leading order perturbative result. All perturbative terms up to order View the MathML source are included in our computation which, after integration over qT, reproduces the known next-to-next-to-leading order result for the Drell–Yan total cross section. We show and discuss the reduction in the scale dependence of the results with respect to lower-order calculations, estimating the corresponding perturbative uncertainty. We present a preliminary comparison with Tevatron Run II data.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
QCD ; hadron colliders ; transverse-momentum resummation ; Drell–Yan process
Elenco autori:
G. Bozzi, S. Catani, G. Ferrera, D. De Florian, M. Grazzini
Link alla scheda completa:
Link al Full Text: