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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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Contributor : Emmanuelle Vernay Connect in order to contact the contributor
Submitted on : Friday, July 8, 2016 - 4:21:45 PM
Last modification on : Tuesday, May 11, 2021 - 11:36:49 AM

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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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