Transverse momentum dependent splitting functions at work: quark-to-gluon splitting

Abstract : Using the recently obtained Pgq splitting function we extend the low x evolution equation for gluons to account for contributions originating from quark-to-gluon splitting. In order to write down a consistent equation we resum virtual corrections coming from the gluon channel and demonstrate that this implies a suitable regularization of the Pgq singularity, corresponding to a soft emitted quark. We also note that the obtained equation is in a straightforward manner generalized to a nonlinear evolution equation which takes into account effects due to the presence of high gluon densities.
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Article dans une revue
Physical Review D, American Physical Society, 2016, 94, pp.114013 〈10.1103/PhysRevD.94.114013〉
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http://hal.in2p3.fr/in2p3-01343564
Contributeur : Emmanuelle Vernay <>
Soumis le : vendredi 8 juillet 2016 - 16:21:45
Dernière modification le : mardi 22 mai 2018 - 21:48:11

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M. Hentschinski, A. Kusina, K. Kutak. Transverse momentum dependent splitting functions at work: quark-to-gluon splitting. Physical Review D, American Physical Society, 2016, 94, pp.114013 〈10.1103/PhysRevD.94.114013〉. 〈in2p3-01343564〉

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