1995/06/29 by A. Capella, A.B. Kaidalov, A. Kaidalov +4 · 24 citations
Physics and Astronomy · #DESY #DGLAP #Gluon #HERA #Hadron #High-Energy Particle Collisions Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pomeron #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Rapidity #hep-ph
paper · pdf · doi:10.1103/physrevd.53.2309
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 53(5), 2309-2316 (American Physical Society) · C-Shell archive of a PostScript file containing a 20 page paper with text and 12 figures in it
arxiv created 1995/06/29 · openalex publication_date 1996/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We show that the previously introduced CKMT model, based on conventional Regge theory, gives a good description of the data from DESY HERA on the structure function F2D for large rapidity gap (diffractive) events. These data allow us not only to determine the valence and sea quark content of the Pomeron, but also, through their Q2 dependence, give us information on its gluonic content. Using DGLAP evolution, we find that the gluon distribution in the Pomeron is very hard and the gluons carry more momentum than the quarks. This indicates that the Pomeron, unlike ordinary hadrons, is a mostly gluonic object. With our definition of the Pomeron flux factor the total momentum carried by quarks and gluons turns out to be 0.3-0.4, strongly violating the momentum sum rule.