AdS Black Disk Model for Small-x Deep Inelastic Scattering

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Lorenzo Cornalba (Author) Other; Miguel S Costa (Author) FCUP; Joao Penedones (Author) Other

Journal

Title: Physical Review Letters

Vol. 105 No. 7

ISSN: 0031-9007

Publisher: American Physical Society

Indexing

ISI Web of Knowledge - 47 Citations

ISI Web of Science

Scopus - 53 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-003-410

DOI: 10.1103/physrevlett.105.072003

Abstract (EN): Using the approximate conformal invariance of QCD at high energies we consider a simple anti- de Sitter black disk model to describe saturation in deep inelastic scattering. Deep inside saturation the structure functions have the same power law scaling, F(T) similar to F(L) similar to x(-w), where w is related to the expansion rate of the black disk with energy. Furthermore, the ratio F(L)/F(T) is given by the universal value 1+3/3+w, independently of the target. For gamma* - gamma* scattering at high energies we obtain explicit expressions and ratios for the total cross sections of transverse and longitudinal photons in terms of the single parameter omega.

Language: English

Type (Professor's evaluation): Scientific