Measurement of inclusive prompt photon photoproduction at HERA

David Bailey; J. Breitweg; S. Chekanov; M. Derrick; D. Krakauer; S. Magill; B. Musgrave; A. Pellegrino; J. Repond; R. Stanek; R. Yoshida; M. C K Mattingly; G. Abbiendi; F. Anselmo; P. Antonioli; G. Bari; M. Basile; L. Bellagamba; D. Boscherini; A. Bruni; G. Bruni; G. Cara Romeo; G. Castellini; L. Cifarelli; F. Cindolo; A. Contin; N. Coppola; M. Corradi; S. De Pasquale; P. Giusti; G. Iacobucci; G. Laurenti; G. Levi; A. Margotti; T. Massam; R. Nania; F. Palmonari; A. Pesci; A. Polini; G. Sartorelli; Y. Zamora Garcia; A. Zichichi; Stewart Boogert

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

Measurement of inclusive prompt photon photoproduction at HERA

David Bailey, J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, R. Stanek, R. Yoshida, M. C K Mattingly, G. Abbiendi, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. BruniG. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, N. Coppola, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, F. Palmonari, A. Pesci, A. Polini, G. Sartorelli, Y. Zamora Garcia, A. Zichichi, Stewart Boogert

Department of Physics & Astronomy

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

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 (η(γ), E(T)/(γ)) of the photon, for E(T)/(γ) > 5 GeV in the γ P centre-of-mass energy range 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 η(γ) (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.

Original language	English
Pages (from-to)	175-188
Number of pages	13
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 - 13 Jan 2000

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Bailey, D., Breitweg, J., Chekanov, S., Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Pellegrino, A., Repond, J., Stanek, R., Yoshida, R., Mattingly, M. C. K., Abbiendi, G., Anselmo, F., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., ... Boogert, S. (2000). Measurement of inclusive prompt photon photoproduction at HERA. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 472(1-2), 175-188. https://doi.org/10.1016/S0370-2693(99)01450-1

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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 (η(γ), E(T)/(γ)) of the photon, for E(T)/(γ) > 5 GeV in the γ P centre-of-mass energy range 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 η(γ) (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.",

author = "David Bailey 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 Stewart Boogert",

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 BV",

number = "1-2",

}

Bailey, D, Breitweg, J, Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, Stanek, R, Yoshida, R, Mattingly, MCK, Abbiendi, G, Anselmo, F, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Cara Romeo, G, Castellini, G, Cifarelli, L, Cindolo, F, Contin, A, Coppola, N, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Laurenti, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Polini, A, Sartorelli, G, Zamora Garcia, Y, Zichichi, A & Boogert, S 2000, 'Measurement of inclusive prompt photon photoproduction at HERA', Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 472, no. 1-2, pp. 175-188. https://doi.org/10.1016/S0370-2693(99)01450-1

TY - JOUR

T1 - Measurement of inclusive prompt photon photoproduction at HERA

AU - Bailey, David

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 - Boogert, Stewart

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 (η(γ), E(T)/(γ)) of the photon, for E(T)/(γ) > 5 GeV in the γ P centre-of-mass energy range 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 η(γ) (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.

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 (η(γ), E(T)/(γ)) of the photon, for E(T)/(γ) > 5 GeV in the γ P centre-of-mass energy range 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 η(γ) (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.

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

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

M3 - Article

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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