1998/05/25 by U. D’Alesio, U. D'Alesio, D'Alesio, U.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear physics research studies #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9805444
4 pages, 2 figures, LaTex2e. Absorption in DIS revised. Talk given at the 6th International Workshop on Deep Inelastic Scattering and QCD (DIS 98), Brussels, Belgium
openalex publication_date 1998/05/25 · arxiv created 2000/04/12 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We calculate target fragmentation in p p → n X and γp → n X reactions in the meson cloud picture of the nucleon. The p p → n X reaction is used to fix the pnπ+ form factor for two different models. We take into account the possible destruction of the residual neutron by the projectile. Using the form factor from the hadronic reaction we calculate photoproduction and small xBj electroproduction of forward neutrons at HERA. In photoproduction we observe about the same amount of absorption as in the hadronic reaction. For deep inelastic events (Q2>10 GeV2) screening is weaker but still present at large Q2. The signature for this absorptive rescattering is a shift of the dσ/dEn distribution to higher neutron energies for photofragmentation.