QCD splitting-function dependence on evolution variable

Abstract : In this note we present the results of the study performed at IFJ PAN in Krakow in the context of the parton-shower-related research which suggests that QCD splitting function depends on the type of physical evolution variable. We sketch a method of including NLO corrections into a cascade (ladder) of a parton shower (PS). The method is based on the Curci-Furmanski- Petronzio classical paper and matching between PS and NLO distributions obtained from the Feynman diagrams. We note that one does not reproduce the classical CFP NLO kernels if the kT ordering is used for the calculation. This seems to be a limitation of the de nition of the CFP procedure and requires further investigation.
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Communication dans un congrès
D. d'Enterria, P.Z. Skands. Parton Radiation and Fargmentation from LHC to FCC-ee, Nov 2016, Geneva, Switzerland. Parton Radiation and Fragmentation from LHC to FCC-ee, Workshop Proceedings, CERN, Geneva, Nov. 22nd-23th, pp.122-127, 〈http://indico.cern.ch/event/557400〉
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http://hal.in2p3.fr/in2p3-01461987
Contributeur : Emmanuelle Vernay <>
Soumis le : mercredi 8 février 2017 - 15:21:11
Dernière modification le : lundi 9 avril 2018 - 12:22:09

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  • HAL Id : in2p3-01461987, version 1
  • ARXIV : 1702.01329

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S. Jadach, A. Kusina, W. Placzek, M. Skrzypek. QCD splitting-function dependence on evolution variable. D. d'Enterria, P.Z. Skands. Parton Radiation and Fargmentation from LHC to FCC-ee, Nov 2016, Geneva, Switzerland. Parton Radiation and Fragmentation from LHC to FCC-ee, Workshop Proceedings, CERN, Geneva, Nov. 22nd-23th, pp.122-127, 〈http://indico.cern.ch/event/557400〉. 〈in2p3-01461987〉

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