26-30 March 2012
University of Bonn
Europe/Berlin timezone

Evidence for breakdown of the DGLAP description in diffractive DIS at HERA

27 Mar 2012, 11:40
Lecture Hall, Institute for Applied Physcis (University of Bonn)

Lecture Hall, Institute for Applied Physcis

University of Bonn

Diffraction and vector mesons Diffraction and vector mesons


Mariusz Sadzikowski (Jagiellonian University)


HERA data on diffractive DIS show deviations from twist 2 DGLAP predictions below Q^2 5 GeV^2 at low x_P, which may reach up to 100%. These deviations are consistent with higher twists effects extracted from the saturation model. It is a first direct evidence for the higher twists in DIS. This finding affects determination of the diffractive parton densities that are used for the predictions at the LHC.

Primary authors

Leszek Motyka (Hamburg University) Mariusz Sadzikowski (Jagiellonian University) Wojtek Slominski

Presentation Materials