| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1853247 | Physics Letters B | 2008 | 7 Pages |
Abstract
The forward photoproduction amplitude for γp→ϒpγp→ϒp is calculated in a pQCD k⊥k⊥-factorization approach with an unintegrated gluon distribution constrained by inclusive deep-inelastic structure functions. The total cross section for diffractive ϒ s is compared with recent HERA data. We also discuss the 2S/1S2S/1S ratio in diffractive ϒ-production. The amplitude is used to predict the cross section for exclusive ϒ production in hadronic reactions. Differential distributions for the exclusive pp¯→pϒp¯ process are calculated for Tevatron energies. We also show predictions for LHC. Absorption effects are included.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
A. Rybarska, W. Schäfer, A. Szczurek,