Measurement of inclusive prompt photon photoproduction at HERA

ZEUS Collaboration; J Repond; U Mallik

doi:10.1016/S0370-2693(99)01450-1

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Measurement of inclusive prompt photon photoproduction at HERA

Journal article

Peer reviewed

Measurement of inclusive prompt photon photoproduction at HERA

ZEUS Collaboration, J Repond and U Mallik

Physics letters. B, Vol.472(1-2), pp.175-188

01/01/2000

DOI: 10.1016/S0370-2693(99)01450-1

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https://arxiv.org/pdf/hep-ex/9910045View

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Abstract

First inclusive measurements of isolated prompt photons in photoproduction at the HERA ep collider have been made with the ZEUS detector, using an integrated luminosity of 38.4 pb(-1) Cross sections are given as a funct ion of the pseudorapidity and the transverse energy (eta(gamma) , E-T(gamma)) of the photon for E-1(gamma) > 5 GeV in thr gamma p centre-of-mass energy ranee 133-285 GeV. Comparisons are made with predictions from Monte Carlo models having Icading-logarithm pal-ton showers, and with next-to-leading-order QCD calculations, using currently available parameterisations of the photon structure. For forward eta(gamma) (proton direction) good agreement is found, but in the rear direction all predictions fall below the data. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

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Details

Title: Subtitle: Measurement of inclusive prompt photon photoproduction at HERA
Creators: ZEUS Collaboration
J Repond (Contributor)
U Mallik (Contributor)
Resource Type: Journal article
Publication Details: Physics letters. B, Vol.472(1-2), pp.175-188
DOI: 10.1016/S0370-2693(99)01450-1
ISSN: 0370-2693
eISSN: 1873-2445
Publisher: Elsevier
Number of pages: 14
Language: English
Date published: 01/01/2000
Academic Unit: Physics and Astronomy
Record Identifier: 9984627348802771

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