Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay

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. Resum...

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Detalles Bibliográficos
Autor principal: de Florian, Daniel Enrique
Publicado: 2015
Materias:
QCD
Resummation
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2015_n12_p1_Catani
http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n12_p1_Catani
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_11266708_v2015_n12_p1_Catani
record_format dspace
spelling paper:paper_11266708_v2015_n12_p1_Catani2023-06-08T16:08:37Z Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay de Florian, Daniel Enrique QCD Resummation 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). Fil:de Florian, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2015_n12_p1_Catani http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n12_p1_Catani
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic QCD
Resummation
spellingShingle QCD
Resummation
de Florian, Daniel Enrique
Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay
topic_facet QCD
Resummation
description 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).
author de Florian, Daniel Enrique
author_facet de Florian, Daniel Enrique
author_sort de Florian, Daniel Enrique
title Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay
title_short Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay
title_full Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay
title_fullStr Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay
title_full_unstemmed Vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay
title_sort vector boson production at hadron colliders: transverse-momentum resummation and leptonic decay
publishDate 2015
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2015_n12_p1_Catani
http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n12_p1_Catani
work_keys_str_mv AT defloriandanielenrique vectorbosonproductionathadroncolliderstransversemomentumresummationandleptonicdecay
_version_ 1768545750849945600

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