Measurement of inclusive prompt photon photoproduction at HERA

Zeus Collaboration

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

Measurement of inclusive prompt photon photoproduction at HERA

Zeus Collaboration

Research output: Contribution to journal › Article › peer-review

66 Citations (Scopus)

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 function of the pseudorapidity and the transverse energy (ηγ, Eγ . of the photon, for E>5 GeV in the γ p centre-of-mass energy range T T 134-285 GeV. Comparisons are made with predictions from Monte Carlo models having leading-logarithm parton showers, and with next-To-leading-order QCD calculations, using currently available parameterisations of the photon structure. For forward ηγ (proton direction. good agreement is found, but in the rear direction all predictions fall below the data.

Original language	English
Pages (from-to)	175-188
Number of pages	14
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	472
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(99)01450-1
Publication status	Published - 2000 Jan 13

Bibliographical note

Publisher Copyright:
© 2000 Published by Elsevier Science B.V. All rights reserved.

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/S0370-2693(99)01450-1

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@article{ac7a0bd131b74e488356048705374bc4,

title = "Measurement of inclusive prompt photon photoproduction at HERA",

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 function of the pseudorapidity and the transverse energy (ηγ, Eγ . of the photon, for E>5 GeV in the γ p centre-of-mass energy range T T 134-285 GeV. Comparisons are made with predictions from Monte Carlo models having leading-logarithm parton showers, and with next-To-leading-order QCD calculations, using currently available parameterisations of the photon structure. For forward ηγ (proton direction. good agreement is found, but in the rear direction all predictions fall below the data.",

author = "\{Zeus Collaboration\} and J. Breitweg and S. Chekanov and M. Derrick and D. Krakauer and S. Magill and B. Musgrave and A. Pellegrino and J. Repond and R. Stanek and R. Yoshida and Mattingly, \{M. C.K.\} and G. Abbiendi and F. Anselmo and P. Antonioli and G. Bari and M. Basile and L. Bellagamba and D. Boscherini and A. Bruni and G. Bruni and \{Cara Romeo\}, G. and G. Castellini and L. Cifarelli and F. Cindolo and A. Contin and N. Coppola and M. Corradi and \{De Pasquale\}, S. and P. Giusti and G. Iacobucci and G. Laurenti and G. Levi and A. Margotti and T. Massam and R. Nania and F. Palmonari and A. Pesci and A. Polini and G. Sartorelli and \{Zamora Garcia\}, Y. and A. Zichichi and C. Amelung and A. Bornheim and I. Brock and K. Cob{\"o}ken and J. Crittenden and R. Deffner and H. Hartmann and K. Heinloth and Park, \{S. K.\}",

year = "2000",

month = jan,

day = "13",

doi = "10.1016/S0370-2693(99)01450-1",

language = "English",

volume = "472",

pages = "175--188",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Measurement of inclusive prompt photon photoproduction at HERA

AU - Zeus Collaboration

AU - Breitweg, J.

AU - Chekanov, S.

AU - Derrick, M.

AU - Krakauer, D.

AU - Magill, S.

AU - Musgrave, B.

AU - Pellegrino, A.

AU - Repond, J.

AU - Stanek, R.

AU - Yoshida, R.

AU - Mattingly, M. C.K.

AU - Abbiendi, G.

AU - Anselmo, F.

AU - Antonioli, P.

AU - Bari, G.

AU - Basile, M.

AU - Bellagamba, L.

AU - Boscherini, D.

AU - Bruni, A.

AU - Bruni, G.

AU - Cara Romeo, G.

AU - Castellini, G.

AU - Cifarelli, L.

AU - Cindolo, F.

AU - Contin, A.

AU - Coppola, N.

AU - Corradi, M.

AU - De Pasquale, S.

AU - Giusti, P.

AU - Iacobucci, G.

AU - Laurenti, G.

AU - Levi, G.

AU - Margotti, A.

AU - Massam, T.

AU - Nania, R.

AU - Palmonari, F.

AU - Pesci, A.

AU - Polini, A.

AU - Sartorelli, G.

AU - Zamora Garcia, Y.

AU - Zichichi, A.

AU - Amelung, C.

AU - Bornheim, A.

AU - Brock, I.

AU - Coböken, K.

AU - Crittenden, J.

AU - Deffner, R.

AU - Hartmann, H.

AU - Heinloth, K.

AU - Park, S. K.

PY - 2000/1/13

Y1 - 2000/1/13

N2 - 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 function of the pseudorapidity and the transverse energy (ηγ, Eγ . of the photon, for E>5 GeV in the γ p centre-of-mass energy range T T 134-285 GeV. Comparisons are made with predictions from Monte Carlo models having leading-logarithm parton showers, and with next-To-leading-order QCD calculations, using currently available parameterisations of the photon structure. For forward ηγ (proton direction. good agreement is found, but in the rear direction all predictions fall below the data.

AB - 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 function of the pseudorapidity and the transverse energy (ηγ, Eγ . of the photon, for E>5 GeV in the γ p centre-of-mass energy range T T 134-285 GeV. Comparisons are made with predictions from Monte Carlo models having leading-logarithm parton showers, and with next-To-leading-order QCD calculations, using currently available parameterisations of the photon structure. For forward ηγ (proton direction. good agreement is found, but in the rear direction all predictions fall below the data.

UR - https://www.scopus.com/pages/publications/0034642447

U2 - 10.1016/S0370-2693(99)01450-1

DO - 10.1016/S0370-2693(99)01450-1

M3 - Article

AN - SCOPUS:0034642447

SN - 0370-2693

VL - 472

SP - 175

EP - 188

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Measurement of inclusive prompt photon photoproduction at HERA

Abstract

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