Transverse-momentum resummation: A perturbative study of Z production at the Tevatron
We consider transverse-momentum (qT) resummation for Drell-Yan lepton pair production in hadron collisions. At small values of qT, the logarithmically-enhanced QCD contributions are resummed up to next-to-leading logarithmic accuracy. At intermediate and large values of qT, resummation is consistent...
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| Autores principales: | , , , , |
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| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_05503213_v815_n1-2_p174_Bozzi |
| Aporte de: |
| Sumario: | We consider transverse-momentum (qT) resummation for Drell-Yan lepton pair production in hadron collisions. At small values of qT, the logarithmically-enhanced QCD contributions are resummed up to next-to-leading logarithmic accuracy. At intermediate and large values of qT, 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. © 2009 Elsevier B.V. All rights reserved. |
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