2001/10/26 by K. Golec-Biernat, Leszek Motyka, L. Motyka +2 · 1 citation
Engineering · Mathematics · Physics and Astronomy · #Astronomy #Diffusion #Gas Dynamics and Kinetic Theory #High-Energy Particle Collisions Research #Infrared #Nuclear physics #Nuclear reactor physics and engineering #Particle physics #Physics #Pomeron #Quantum chromodynamics #Quantum mechanics #hep-ph
paper · pdf · doi:10.1103/physrevd.65.074037
published as Phys.Rev.D65:074037,2002 · 26 pages, 10 figures, some references corrected
arxiv created 2001/10/26 · openalex publication_date 2002/04/05 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The Balitski\ifmmode \breve\imath\else \u\i\fi-Fadin-Kuraev-Lipatov (BFKL) Pomeron in perturbative QCD is plagued by the lack of unitarity and diffusion into the infrared region of gluon virtualities. These two problems are intimately related. We perform numerical studies of the evolution equation proposed by Balitski\ifmmode \breve\imath\else \u\i\fi and Kovchegov which unitarizes the BFKL Pomeron. We show how diffusion into the infrared region is suppressed due to the emergence of a saturation scale and scaling behavior. We study the universality of this phenomenon as well as its dependence on subleading corrections to the BFKL Pomeron such as the running coupling and kinematic constraint. These corrections are very important for phenomenological applications.