Speaker
Robi Peschanski
(IPhT, CEA-Saclay)
Description
We consider and compare various geometric-scaling solutions of the QCD Balitsky-Kovchegov (BK) equation, for fixed or running QCD coupling.
These solutions predict different scaling variables which we first test with recent DIS cross-section data using the "Quality Factor" method. Then we use a chi^2 method to compare the different predicted parametrisations of the traveling wave representation of the BK equation's solutions. A geometric scaling corresponding to running coupling is finally favored, with a satisfactory chi^2 by d.o.f.. There is no indication of a sizeable scaling violation term.
Author
Robi Peschanski
(IPhT, CEA-Saclay)
Co-author
christophe Royon
(IRFU, CEA-Saxclay)
