INCLUSIVE JET PRODUCTION WITH VIRTUAL PHOTONS IN NEXT-TO-LEADING ORDER QCD

Citation
M. Klasen et al., INCLUSIVE JET PRODUCTION WITH VIRTUAL PHOTONS IN NEXT-TO-LEADING ORDER QCD, EUROPEAN PHYSICAL JOURNAL C-PARTICLES AND FIELDS, 1(1-2), 1998, pp. 261-270
Citations number
32
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
14346044
Volume
1
Issue
1-2
Year of publication
1998
Pages
261 - 270
Database
ISI
SICI code
1434-6044(1998)1:1-2<261:IJPWVP>2.0.ZU;2-O
Abstract
We present a next-to-leading order calculation for the virtual photopr oduction of one and two jets in ep collisions. Soft and collinear sing ularities are extracted using the phase space slicing method. The coll inear photon initial state singularity depends logarithmically on the mass of the virtual photon and is absorbed into the virtual photon str ucture function. An MS factorization scheme is defined similarly to th e real photon case. Numerical results are presented for HERA condition s using the Snowmass jet definition for inclusive single jet and dijet cross sections. We study the dependence of these cross sections on th e transverse energies and rapidities of the jets. Finally we compare t he ratio of the experimentally defined resolved and direct cross secti ons with recent ZEUS data as a function of the photon virtuality P-2.