On the Energy Dependence of DIS in the Diffraction Region of Low X

2005/11/08 by D. Schildknecht, Schildknecht, D.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0511089

To appear in the proceedings of the XIth International Conference on Elastic and Diffractive Scattering Chateau de Blois, France, May 15-20, 2005

arxiv created 2005/11/08 · arxiv updated 2009/12/01

Abstract

The energy dependence of the virtual photoabsorption cross section in deep inelastic scattering (DIS) at low x = Q²/W² < 0.1 may be described in terms of the saturation scale that in our approach depends on the energy, Λ²_sat = Λ²_sat (W²). We briefly summarize our recent findings that allow us to predict the exponent C₂ of Λ²_sat (W²) ∼ (W²)^C₂ in agreement with the previous result obtained from fitting the experimental data. The exponent C₂ depending on the relative magnitude of the longitudinal and transverse contribution to the structure function, direct measurements of the longitudinal part are urgently needed.

Related

• Diffraction and sigma_{gamma* p}
• DIS structure functions from the saturation model
• DIS at low x, saturation scale, gluon structure function and vector-meson production
• Diffractive structure functions in DIS
• The transition from the photoproduction to the DIS region