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Abstract:

Abstract: We consider the transverse-momentum (q T ) distribution of Drell-Yan lepton pairs produced, via W and Z/γ * decay, in hadronic collisions. At small values of q T , we resum the logarithmically-enhanced perturbative QCD contributions up to next-to-next-to-leading logarithmic accuracy. Resummed results are consistently combined with the known (Formula Presented.) fixed-order results at intermediate and large values of q T . Our calculation includes the leptonic decay of the vector boson with the corresponding spin correlations, the finite-width effects and the full dependence on the final-state lepton(s) kinematics. The computation is encoded in the numerical program DYRes, which allows the user to apply arbitrary kinematical cuts on the final-state leptons and to compute the corresponding distributions in the form of bin histograms. We present a comparison of our results with some of the available LHC data. The inclusion of the leptonic decay in the resummed calculation requires a theoretical discussion on the q T recoil due to the transverse momentum of the produced vector boson. We present a q T recoil procedure that is directly applicable to q T resummed calculations for generic production processes of high-mass systems in hadron collisions. © 2015, The Author(s).

Registro:

Documento: Artículo
Título:Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay
Autor:Catani, S.; de Florian, D.; Ferrera, G.; Grazzini, M.
Filiación:INFN — Sezione di Firenze and Dipartimento di Fisica e Astronomia, Università di Firenze, Sesto Fiorentino, Florence I-50019, Italy
Departamento de Física, FCEYN, Universidad de Buenos Aires, (1428) Pabellón 1, Ciudad Universitaria, Capital Federal, Argentina
International Center for Advanced Studies (ICAS), UNSAM, Campus Miguelete, 25 de Mayo y Francia, Buenos Aires, 1650, Argentina
Dipartimento di Fisica, Università di Milano and INFN — Sezione di Milano, Milan, I-20133, Italy
Physik-Institut, Universität Zürich, Zürich, CH-8057, Switzerland
Palabras clave:QCD; Resummation
Año:2015
Volumen:2015
Número:12
Página de inicio:1
Página de fin:47
DOI: http://dx.doi.org/10.1007/JHEP12(2015)047
Título revista:Journal of High Energy Physics
Título revista abreviado:J. High Energy Phys.
ISSN:11266708
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2015_n12_p1_Catani

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Citas:

---------- APA ----------
Catani, S., de Florian, D., Ferrera, G. & Grazzini, M. (2015) . Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay. Journal of High Energy Physics, 2015(12), 1-47.
http://dx.doi.org/10.1007/JHEP12(2015)047
---------- CHICAGO ----------
Catani, S., de Florian, D., Ferrera, G., Grazzini, M. "Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay" . Journal of High Energy Physics 2015, no. 12 (2015) : 1-47.
http://dx.doi.org/10.1007/JHEP12(2015)047
---------- MLA ----------
Catani, S., de Florian, D., Ferrera, G., Grazzini, M. "Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay" . Journal of High Energy Physics, vol. 2015, no. 12, 2015, pp. 1-47.
http://dx.doi.org/10.1007/JHEP12(2015)047
---------- VANCOUVER ----------
Catani, S., de Florian, D., Ferrera, G., Grazzini, M. Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay. J. High Energy Phys. 2015;2015(12):1-47.
http://dx.doi.org/10.1007/JHEP12(2015)047