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Title: Observation of direct processes in photoproduction at HERA.

Abstract

Jets in photoproduction events have been studied with the ZEUS detector for {gamma}p centre-of-mass energies ranging from 130 to 250 GeV. The inclusive jet distributions give evidence for the dominance of resolved photon interactions. In the di-jet sample the direct processes are for the first time clearly isolated. Di-jet cross sections for the resolved and direct processes are given in a restricted kinematic range.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
ER
OSTI Identifier:
937706
Report Number(s):
ANL-HEP-PR-94-14
Journal ID: ISSN 0370-2693; PYLBAJ; TRN: US200905%%492
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Phys. Lett. B
Additional Journal Information:
Journal Volume: 322; Journal Issue: 1994; Journal ID: ISSN 0370-2693
Country of Publication:
United States
Language:
ENGLISH
Subject:
43 PARTICLE ACCELERATORS; CROSS SECTIONS; PHOTONS; PHOTOPRODUCTION; JETS; ACCELERATOR FACILITIES

Citation Formats

Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Repond, S., Stanek, R., Talaga, R. L., Thron, J., ZEUS Collaboration, and High Energy Physics. Observation of direct processes in photoproduction at HERA.. United States: N. p., 1994. Web. doi:10.1016/0370-2693(94)91121-5.
Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Repond, S., Stanek, R., Talaga, R. L., Thron, J., ZEUS Collaboration, & High Energy Physics. Observation of direct processes in photoproduction at HERA.. United States. doi:10.1016/0370-2693(94)91121-5.
Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Repond, S., Stanek, R., Talaga, R. L., Thron, J., ZEUS Collaboration, and High Energy Physics. Sat . "Observation of direct processes in photoproduction at HERA.". United States. doi:10.1016/0370-2693(94)91121-5.
@article{osti_937706,
title = {Observation of direct processes in photoproduction at HERA.},
author = {Derrick, M. and Krakauer, D. and Magill, S. and Musgrave, B. and Repond, J. and Repond, S. and Stanek, R. and Talaga, R. L. and Thron, J. and ZEUS Collaboration and High Energy Physics},
abstractNote = {Jets in photoproduction events have been studied with the ZEUS detector for {gamma}p centre-of-mass energies ranging from 130 to 250 GeV. The inclusive jet distributions give evidence for the dominance of resolved photon interactions. In the di-jet sample the direct processes are for the first time clearly isolated. Di-jet cross sections for the resolved and direct processes are given in a restricted kinematic range.},
doi = {10.1016/0370-2693(94)91121-5},
journal = {Phys. Lett. B},
issn = {0370-2693},
number = 1994,
volume = 322,
place = {United States},
year = {1994},
month = {1}
}