𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Energy dependence of diffractive production at HERA

✍ Scribed by E. Gotsman; E. Levin; M. Lublinsky; U. Maor; K. Tuchin

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
501 KB
Volume
697
Category
Article
ISSN
0375-9474

No coin nor oath required. For personal study only.

✦ Synopsis

Intrigued by the unexpected recent results from HERA, that the ratio Οƒ diff /Οƒ tot is only weakly dependent on energy, we have attempted to reproduce this result within the framework of perturbative QCD. To this end we generalize the Kovchegov-McLerran formula for the ratio using Glauber-Mueller approach for shadowing corrections and AGK cutting rules. We investigate several phenomenological approaches and also compare with the successful Golec-Biernat-WΓΌsthoff model. We have not managed to reproduce the data, and conclude that, apparently, there are soft nonperturbative contributions present at short distances which should be included.

πŸ“œ SIMILAR VOLUMES

Diffractive dijet production at HERA
Diffractive dijet production at HERA
✍ F.-P. Schilling πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 209 KB

Cross sections for events of the type ep --+ eXY, where the systems X and Y are separated by a large rapidity gap and X contains two jets, are presented for both deep inelastic scattering and photoproduction, measured using data from the H1 experiment at HERA. The corrected cross sections are descri

Measurements of Inclusive and Exclusive
Measurements of Inclusive and Exclusive Diffraction at HERA
✍ Armen Bunyatyan πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 English βš– 459 KB

## R.epresenting the Hl and ZEUS Collaborations Recent measurements of inclusive processes, vector meson production and hadronic final states in diffractive interactions at HERA are presented. The data is used to investigate the factorization properties and study the partonic structure of colour