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Inclusive jet differential cross sections in photoproduction at HERA

Abstract

Inclusive jet differential cross sections for the reaction ep{yields}jet+X at Q{sup 2} below 4 GeV{sup 2} have been measured with the ZEUS detector at HERA using an integrated luminosity of 0.55 pb{sup -1}. These cross sections are given in the kinematic region 0.2<0.85, for jet pseudorapidities in the ep-laboratory range -1<{eta}{sup jet}<2 and refer to jets at the handron level with a cone radius of one unit in the {eta}-{phi} plane. These results correspond to quasi-real photoproduction at centre-of-mass energies in the range 130-270 GeV and, approximately, for jet pseudorapidities in the interval -3<{eta}{sup jet}({gamma}p CMS)<0. These measurements cover a new kinematic regime of the partonic structure of the photon, at typical scales up to {proportional_to}300 GeV{sup 2} and photon fractional momenta down to x{sub {gamma}}{proportional_to}10{sup -2}. Leading logarithm parton shower Monte Carlo calculations, which include both resolved and direct processes and use the predictions of currently available parametrisations of the photon parton distributions, describe in general the shape and magnitude of the measured {eta}{sup jet} and E{sub T}{sup jet} distributions. (orig.)
Authors:
Derrick, M; Krakauer, D; Magill, S; [1]  ZEUS Collaboration
  1. Argonne National Lab., IL (United States); and others
Publication Date:
Oct 01, 1994
Product Type:
Technical Report
Report Number:
DESY-94-176
Reference Number:
SCA: 662330; PA: DEN-95:0F5639; EDB-95:054178; SN: 95001361442
Resource Relation:
Other Information: PBD: Oct 1994
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELECTRON-PROTON INTERACTIONS; INCLUSIVE INTERACTIONS; DIFFERENTIAL CROSS SECTIONS; GEV RANGE 100-1000; JET MODEL; MULTIPLE PRODUCTION; ELECTROPRODUCTION; PARTICLE RAPIDITY; PARTON MODEL; PHOTOPRODUCTION; TRANSVERSE MOMENTUM; EXPERIMENTAL DATA; TRANSVERSE ENERGY; ANGULAR CORRELATION; HADRONS; ENERGY SPECTRA; GLUONS; QUARKS; QUASI-ELASTIC SCATTERING; ELECTRONS; PHOTON-PROTON INTERACTIONS; 662330; PHOTON AND CHARGED-LEPTON INTERACTIONS WITH HADRONS
OSTI ID:
10128423
Research Organizations:
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0418-9833; Other: ON: DE95756111; TRN: DE95F5639
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
DEN
Size:
26 p.
Announcement Date:
Jul 04, 2005

Citation Formats

Derrick, M, Krakauer, D, Magill, S, and ZEUS Collaboration. Inclusive jet differential cross sections in photoproduction at HERA. Germany: N. p., 1994. Web.
Derrick, M, Krakauer, D, Magill, S, &amp; ZEUS Collaboration. Inclusive jet differential cross sections in photoproduction at HERA. Germany.
Derrick, M, Krakauer, D, Magill, S, and ZEUS Collaboration. 1994. "Inclusive jet differential cross sections in photoproduction at HERA." Germany.
@misc{etde_10128423,
title = {Inclusive jet differential cross sections in photoproduction at HERA}
author = {Derrick, M, Krakauer, D, Magill, S, and ZEUS Collaboration}
abstractNote = {Inclusive jet differential cross sections for the reaction ep{yields}jet+X at Q{sup 2} below 4 GeV{sup 2} have been measured with the ZEUS detector at HERA using an integrated luminosity of 0.55 pb{sup -1}. These cross sections are given in the kinematic region 0.2<0.85, for jet pseudorapidities in the ep-laboratory range -1<{eta}{sup jet}<2 and refer to jets at the handron level with a cone radius of one unit in the {eta}-{phi} plane. These results correspond to quasi-real photoproduction at centre-of-mass energies in the range 130-270 GeV and, approximately, for jet pseudorapidities in the interval -3<{eta}{sup jet}({gamma}p CMS)<0. These measurements cover a new kinematic regime of the partonic structure of the photon, at typical scales up to {proportional_to}300 GeV{sup 2} and photon fractional momenta down to x{sub {gamma}}{proportional_to}10{sup -2}. Leading logarithm parton shower Monte Carlo calculations, which include both resolved and direct processes and use the predictions of currently available parametrisations of the photon parton distributions, describe in general the shape and magnitude of the measured {eta}{sup jet} and E{sub T}{sup jet} distributions. (orig.)}
place = {Germany}
year = {1994}
month = {Oct}
}