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Journal articles
On the dependence of QCD splitting functions on the choice of the evolution variable
Abstract : We show that already at the NLO level the DGLAP evolution kernel Pqq starts to depend on the choice of the evolution variable. We give an explicit example of such a variable, namely the maximum of transverse momenta of emitted partons and we identify a class of evolution variables that leave the NLO Pqq kernel unchanged with respect to the known standard MS-bar results. The kernels are calculated using a modified Curci-Furmanski-Petronzio method which is based on a direct Feynman-graphs calculation.
http://hal.in2p3.fr/in2p3-01334581
Contributor : Emmanuelle Vernay Connect in order to contact the contributor
Submitted on : Tuesday, June 21, 2016 - 8:14:05 AM
Last modification on : Tuesday, May 11, 2021 - 11:36:49 AM
Contributor : Emmanuelle Vernay Connect in order to contact the contributor
Submitted on : Tuesday, June 21, 2016 - 8:14:05 AM
Last modification on : Tuesday, May 11, 2021 - 11:36:49 AM
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