Speaker
Michal Praszalowicz
(Jagellonian University, Krakow)
Description
Gluon distrubutions of colliding hadrons saturate
as a consequence of non-linear evolution equations of QCD.
Saturation implies the existence of the so called
saturation momentum, which is related to the gluon density
per unit rapidity per transverse area. At large energies
in some regions of phase space the saturation momentum
is the only scale for physical processes. As a consequence
different observables exhibit so called geometrical
scaling (GS). We shall briefly discuss theoretical aspects
of saturation and then show a number of examples of GS
and its violation in different reactions.
Author
Michal Praszalowicz
(Jagellonian University, Krakow)
