Speaker
Aleksander Kusina
(LPSC Grenoble)
Description
We use transverse momentum dependent splitting functions to construct a low-x
evolution equation for gluons that takes into account the effect of non-diagonal
quark-to-gluon splittings. 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.
Primary authors
Aleksander Kusina
(LPSC Grenoble)
Krzysztof Kutak
(Instytut Fizyki Jadrowej Polskiej Akademii Nauk)
Martin Hentschinski
(Universidad de las Americas, Puebla)
