Factorization breaking in diffractive photoproduction of dijets-a review

✍ Scribed by Gustav Kramer

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 525 KB
• Volume: 191
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/j.nuclphysbps.2009.03.130

✦ Synopsis

I compare the latest H1 and ZEUS data on diffractive dijet photoproduction with next-to-leading order QCD predictions in order to see whether a rapidity gap survival probability of less than one is supported by the data. I find evidence for this hypothesis when assuming global factorization breaking for both the direct and resolved photon contributions, in which case the suppression factor would have to be strongly E jet T -dependent, and when assuming factorization breaking for the resolved or in addition the related direct initial-state singular contribution only, where it would be independent of E jet T .