NLL+NNLO predictions for jet-veto efficiencies in Higgs-boson and Drell-Yan production

A bstract Using the technology of the caesar approach to resummation, we examine the jet-veto efficiency in Higgs-boson and Drell-Yan production at hadron colliders and show that at next-to-leading logarithmic (NLL) accuracy the resummation reduces to just a Sudakov form factor. Matching with NNLO c...

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Bibliographic Details
Published inThe journal of high energy physics Vol. 2012; no. 6
Main Authors Banfi, Andrea, Salam, Gavin P., Zanderighi, Giulia
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2012
Springer Nature B.V
Subjects
Algorithms
Classical and Quantum Gravitation
Elementary Particles
Form factors
Gluons
Higgs bosons
High energy physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Relativity Theory
String Theory
QCD
Higgs Physics
Standard Model
Resummation
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Summary:A bstract Using the technology of the caesar approach to resummation, we examine the jet-veto efficiency in Higgs-boson and Drell-Yan production at hadron colliders and show that at next-to-leading logarithmic (NLL) accuracy the resummation reduces to just a Sudakov form factor. Matching with NNLO calculations results in stable predictions for the case of Drell-Yan production, but reveals substantial uncertainties in gluon-fusion Higgs production, connected in part with the poor behaviour of the perturbative series for the total cross section. We compare our results to those from powheg with and without reweighting by h q t , as used experimentally, and observe acceptable agreement. In an appendix we derive the part of the NNLL resummation corrections associated with the radius dependence of the jet algorithm.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP06(2012)159