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Prompt photons in photoproduction at HERA

Aaron, F. D.; Martin, M. Aldaya; Alexa, C.; Andreev, V.; Antunovic, B.; Backovic, S.; Baghdasaryan, A.; Barrelet, E.; Bartel, W. and Begzsuren, K., et al. (2010) In European Physical Journal C. Particles and Fields 66(1-2). p.17-33
Abstract
The production of prompt photons is measured in the photoproduction regime of electron-proton scattering at HERA. The analysis is based on a data sample corresponding to a total integrated luminosity of 340 pb(-1) collected by the H1 experiment. Cross sections are measured for photons with transverse momentum and pseudorapidity in the range 6< E-T(gamma) < 15 GeV and -1.0< eta(gamma) < 2.4, respectively. Cross sections for events with an additional jet are measured as a function of the transverse energy and pseudorapidity of the jet, and as a function of the fractional momenta x(gamma) and x(p) carried by the partons entering the hard scattering process. The correlation between the photon and the jet is also studied. The... (More)
The production of prompt photons is measured in the photoproduction regime of electron-proton scattering at HERA. The analysis is based on a data sample corresponding to a total integrated luminosity of 340 pb(-1) collected by the H1 experiment. Cross sections are measured for photons with transverse momentum and pseudorapidity in the range 6< E-T(gamma) < 15 GeV and -1.0< eta(gamma) < 2.4, respectively. Cross sections for events with an additional jet are measured as a function of the transverse energy and pseudorapidity of the jet, and as a function of the fractional momenta x(gamma) and x(p) carried by the partons entering the hard scattering process. The correlation between the photon and the jet is also studied. The results are compared with QCD predictions based on the collinear and on the k(T) factorization approaches. (Less)
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European Physical Journal C. Particles and Fields
volume
66
issue
1-2
pages
17 - 33
publisher
Springer
external identifiers
  • wos:000275453500003
  • scopus:77949281316
ISSN
1434-6044
DOI
10.1140/epjc/s10052-010-1240-7
language
English
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yes
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8d375573-57b0-4e99-9637-0266fcb7cccd (old id 1588435)
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2010-04-22 08:57:12
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@article{8d375573-57b0-4e99-9637-0266fcb7cccd,
  abstract     = {The production of prompt photons is measured in the photoproduction regime of electron-proton scattering at HERA. The analysis is based on a data sample corresponding to a total integrated luminosity of 340 pb(-1) collected by the H1 experiment. Cross sections are measured for photons with transverse momentum and pseudorapidity in the range 6&lt; E-T(gamma) &lt; 15 GeV and -1.0&lt; eta(gamma) &lt; 2.4, respectively. Cross sections for events with an additional jet are measured as a function of the transverse energy and pseudorapidity of the jet, and as a function of the fractional momenta x(gamma) and x(p) carried by the partons entering the hard scattering process. The correlation between the photon and the jet is also studied. The results are compared with QCD predictions based on the collinear and on the k(T) factorization approaches.},
  author       = {Aaron, F. D. and Martin, M. Aldaya and Alexa, C. and Andreev, V. and Antunovic, B. and Backovic, S. and Baghdasaryan, A. and Barrelet, E. and Bartel, W. and Begzsuren, K. and Belousov, A. and Bizot, J. C. and Boudry, V. and Bozovic-Jelisavcic, I. and Bracinik, J. and Brandt, G. and Brinkmann, M. and Brisson, V. and Bruncko, D. and Bunyatyan, A. and Buschhorn, G. and Bystritskaya, L. and Campbell, A. J. and Cantun Avila, K. B. and Cerny, K. and Cerny, V. and Chekelian, V. and Cholewa, A. and Contreras, J. G. and Coughlan, J. A. and Cozzika, G. and Cvach, J. and Dainton, J. B. and Daum, K. and Deak, M. and de Boer, Y. and Delcourt, B. and Del Degan, M. and Delvax, J. and De Wolf, E. A. and Diaconu, C. and Dodonov, V. and Dossanov, A. and Dubak, A. and Eckerlin, G. and Efremenko, V. and Egli, S. and Eliseev, A. and Elsen, E. and Falkiewicz, A. and Favart, L. and Fedotov, A. and Felst, R. and Feltesse, J. and Ferencei, J. and Fischer, D. -J. and Fleischer, M. and Fomenko, A. and Gabathuler, E. and Gayler, J. and Ghazaryan, S. and Glazov, A. and Glushkov, I. and Goerlich, L. and Gogitidze, N. and Gouzevitch, M. and Grab, C. and Greenshaw, T. and Grell, B. R. and Grindhammer, G. and Habib, S. and Haidt, D. and Helebrant, C. and Henderson, R. C. W. and Hennekemper, E. and Henschel, H. and Herbst, M. and Herrera, G. and Hildebrandt, M. and Hiller, K. H. and Hoffmann, D. and Horisberger, R. and Hreus, T. and Jacquet, M. and Janssen, X. and Jönsson, Leif and Jung, A. W. and Jung, H. and Kapichine, M. and Katzy, J. and Kenyon, I. R. and Kiesling, C. and Klein, M. and Kleinwort, C. and Kluge, T. and Knutsson, A. and Kogler, R. and Kostka, P. and Kraemer, M. and Krastev, K. and Kretzschmar, J. and Kropivnitskaya, A. and Krueger, K. and Kutak, K. and Landon, M. P. J. and Lange, W. and Lastovicka-Medin, G. and Laycock, P. and Lebedev, A. and Leibenguth, G. and Lendermann, V. and Levonian, S. and Li, G. and Lipka, K. and Liptaj, A. and List, B. and List, J. and Loktionova, N. and Lopez-Fernandez, R. and Lubimov, V. and Makankine, A. and Malinovski, E. and Marage, P. and Marti, Ll. and Martyn, H. -U. and Maxfield, S. J. and Mehta, A. and Meyer, A. B. and Meyer, H. and Meyer, H. and Meyer, J. and Michels, V. and Mikocki, S. and Milcewicz-Mika, I. and Moreau, F. and Morozov, A. and Morris, J. V. and Mozer, M. U. and Mudrinic, M. and Mueller, K. and Murin, P. and Naumann, Th. and Newman, P. R. and Niebuhr, C. and Nikiforov, A. and Nikitin, D. and Nowak, G. and Nowak, K. and Nozicka, M. and Olivier, B. and Olsson, J. E. and Osman, Sakar and Ozerov, D. and Palichik, V. and Panagoulias, I. and Pandurovic, M. and Papadopoulou, Th. and Pascaud, C. and Patel, G. D. and Pejchal, O. and Perez, E. and Petrukhin, A. and Picuric, I. and Piec, S. and Pitzl, D. and Placakyte, R. and Pokorny, B. and Polifka, R. and Povh, B. and Radescu, V. and Rahmat, A. J. and Raicevic, N. and Raspiareza, A. and Ravdandorj, T. and Reimer, P. and Rizvi, E. and Robmann, P. and Roland, B. and Roosen, R. and Rostovtsev, A. and Rotaru, M. and Ruiz Tabasco, J. E. and Rurikova, Z. and Rusakov, S. and Salek, D. and Sankey, D. P. C. and Sauter, M. and Sauvan, E. and Schmitt, S. and Schoeffel, L. and Schoening, A. and Schultz-Coulon, H. -C. and Sefkow, F. and Shaw-West, R. N. and Shtarkov, L. N. and Shushkevich, S. and Sloan, T. and Smiljanic, I. and Soloviev, Y. and Sopicki, P. and South, D. and Spaskov, V. and Specka, A. and Staykova, Z. and Steder, M. and Stella, B. and Stoicea, G. and Straumann, U. and Sunar, D. and Sykora, T. and Tchoulakov, V. and Thompson, G. and Thompson, P. D. and Toll, T. and Tomasz, F. and Tran, T. H. and Traynor, D. and Trinh, T. N. and Truoel, P. and Tsakov, I. and Tseepeldorj, B. and Turnau, J. and Urban, K. and Valkarova, A. and Vallee, C. and Van Mechelen, P. and Trevino, A. Vargas and Vazdik, Y. and Vinokurova, S. and Volchinski, V. and von den Driesch, M. and Wegener, D. and Wissing, Ch. and Wuensch, E. and Zacek, J. and Zalesak, J. and Zhang, Z. and Zhokin, A. and Zimmermann, T. and Zohrabyan, H. and Zomer, F. and Zus, R.},
  issn         = {1434-6044},
  language     = {eng},
  number       = {1-2},
  pages        = {17--33},
  publisher    = {Springer},
  series       = {European Physical Journal C. Particles and Fields},
  title        = {Prompt photons in photoproduction at HERA},
  url          = {http://dx.doi.org/10.1140/epjc/s10052-010-1240-7},
  volume       = {66},
  year         = {2010},
}