Photoproduction of Isolated Photons, Single Hadrons and Jets at Nlo
نویسنده
چکیده
The photoproduction of large-pT charged hadrons and of prompt photons is discussed, for the inclusive case and with an associated jet, using predictions from the NLO partonic Monte Carlo program EPHOX. Comparisons to recent HERA data are also shown.
منابع مشابه
Parton Distributions from Photoproduction in Polarized ep Scattering at HERA
We study photoproduction of jets and single-inclusive hadrons in a polarized ep collider mode of HERA at √ s ≈ 300 GeV, examining the sensitivity of the cross sections and their asymmetries to the proton’s polarized gluon distribution and to the completely unknown parton distributions of polarized photons. We also present for the first time the NLO corrections to the direct part of polarized si...
متن کاملar X iv : h ep - p h / 96 08 37 8 v 1 2 0 A ug 1 99 6 PHOTOPRODUCTION OF JETS AT NLO
The production of jets with large transverse momenta by photon beams differs in a number of ways from the corresponding hadroproduction case. These differences can be used to further investigate the interactions of the underlying hadronic constituents as well as to study the interactions between photons and hadrons. It has become conventional to describe jet photoproduction in terms of two comp...
متن کاملPhoton Structure and the Production of Jets, Hadrons, and Prompt Photons
We give a pedagogical introduction to hard photoproduction processes at HERA, including the production of jets, hadrons, and prompt photons. Recent theoretical developments in the three areas are reviewed. ANL-HEP-CP-99-73
متن کاملPhotoproduction of isolated photons at HERA in NLO QCD
The NLO QCD calculation for the photoproduction of the isolated photon with a large pT at the HERA ep collider is presented. The single resolved photon contribution and the QCD corrections of order αs to the Born term are consistently included. The sizeable NNLO contributions, the box and the double resolved photon subprocesses, are taken into account in addition. The importance of the isolatio...
متن کاملPrompt photons with associated jets in photoproduction at HERA
Prompt photons, together with an accompanying jet, have been studied in the photoproduction regime of ep scattering with the ZEUS detector at HERA. Predictions based on leading-logarithm parton-shower Monte Carlo models and next-to-leadingorder (NLO) QCD underestimate the γ+jet cross sections for transverse energies of prompt photons below 7 GeV, while the kT -factorisation QCD calculation agre...
متن کامل