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Diffractive deep-inelastic scattering with a leading proton at HERA

Aktas, A.; Andreev, V.; Anthonis, T.; Antunovic, B.; Aplin, S.; Asmone, A.; Astvatsatourov, A.; Babaev, A.; Backovic, S. and Baghdasaryan, A., et al. (2006) In European Physical Journal C. Particles and Fields 48(3). p.749-766
Abstract
The cross section for the diffractive deep-inelastic scattering process ep -> eX(P) is measured, with the leading final state proton detected in the H1 Forward Proton Spectrometer. The data analysed cover the range x(P) < 0.1 in fractional proton longitudinal momentum loss, 0.08 < vertical bar t vertical bar < 0.5 GeV-2 in squared four-momentum transfer at the proton vertex, 2 < Q(2) < 50 GeV2 in photon virtuality and 0.004 < beta = x/x(P) < 1, where x is the Bjorken scaling variable. For x(P) less than or similar to 10(-2), the differential cross section has a dependence of approximately d sigma/dt proportional to e(6t), independently of x(P), beta and Q(2) within uncertainties. The cross section is also measured... (More)
The cross section for the diffractive deep-inelastic scattering process ep -> eX(P) is measured, with the leading final state proton detected in the H1 Forward Proton Spectrometer. The data analysed cover the range x(P) < 0.1 in fractional proton longitudinal momentum loss, 0.08 < vertical bar t vertical bar < 0.5 GeV-2 in squared four-momentum transfer at the proton vertex, 2 < Q(2) < 50 GeV2 in photon virtuality and 0.004 < beta = x/x(P) < 1, where x is the Bjorken scaling variable. For x(P) less than or similar to 10(-2), the differential cross section has a dependence of approximately d sigma/dt proportional to e(6t), independently of x(P), beta and Q(2) within uncertainties. The cross section is also measured triple differentially in x(P), beta and Q(2). The x(P) dependence is interpreted in terms of an effective pomeron trajectory with intercept alpha(P) (0) = 1.114 +/- 0.018(stat.) +/- 0.012(syst.)(-0.020)(+0.040) (model) and a subleading exchange. The data are in good agreement with an H1 measurement for which the event selection is based on a large gap in the rapidity distribution of the final state hadrons, after accounting for proton dissociation contributions in the latter. Within uncertainties, the dependence of the cross section on x and Q(2) can thus be factorised from the dependences on all studied variables which characterise the proton vertex, for both the pomeron and the sub-leading exchange. (Less)
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European Physical Journal C. Particles and Fields
volume
48
issue
3
pages
749 - 766
publisher
Springer
external identifiers
  • wos:000242661400004
  • scopus:33845313984
ISSN
1434-6044
DOI
10.1140/epjc/s10052-006-0046-0
language
English
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yes
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88a1d5ed-1fb0-4e0e-aa7f-9fe80f756e8a (old id 683081)
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2007-12-20 11:48:14
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@article{88a1d5ed-1fb0-4e0e-aa7f-9fe80f756e8a,
  abstract     = {The cross section for the diffractive deep-inelastic scattering process ep -&gt; eX(P) is measured, with the leading final state proton detected in the H1 Forward Proton Spectrometer. The data analysed cover the range x(P) &lt; 0.1 in fractional proton longitudinal momentum loss, 0.08 &lt; vertical bar t vertical bar &lt; 0.5 GeV-2 in squared four-momentum transfer at the proton vertex, 2 &lt; Q(2) &lt; 50 GeV2 in photon virtuality and 0.004 &lt; beta = x/x(P) &lt; 1, where x is the Bjorken scaling variable. For x(P) less than or similar to 10(-2), the differential cross section has a dependence of approximately d sigma/dt proportional to e(6t), independently of x(P), beta and Q(2) within uncertainties. The cross section is also measured triple differentially in x(P), beta and Q(2). The x(P) dependence is interpreted in terms of an effective pomeron trajectory with intercept alpha(P) (0) = 1.114 +/- 0.018(stat.) +/- 0.012(syst.)(-0.020)(+0.040) (model) and a subleading exchange. The data are in good agreement with an H1 measurement for which the event selection is based on a large gap in the rapidity distribution of the final state hadrons, after accounting for proton dissociation contributions in the latter. Within uncertainties, the dependence of the cross section on x and Q(2) can thus be factorised from the dependences on all studied variables which characterise the proton vertex, for both the pomeron and the sub-leading exchange.},
  author       = {Aktas, A. and Andreev, V. and Anthonis, T. and Antunovic, B. and Aplin, S. and Asmone, A. and Astvatsatourov, A. and Babaev, A. and Backovic, S. and Baghdasaryan, A. and Baranov, P. and Barrelet, E. and Bartel, W. and Baudrand, S. and Baumgartner, S. and Beckingham, M. and Behnke, O. and Behrendt, O. and Belousov, A. and Berger, N. and Bizot, J. C. and Boenig, M. -O. and Boudry, V. and Bracinik, J. and Brandt, G. and Brisson, V. and Bruncko, D. and Busser, F. W. and Bunyatyan, A. and Buschhorn, G. and Bystritskaya, L. and Campbell, A. J. and Cassol-Brunner, F. and Cerny, K. and Cerny, V. and Chekelian, V. and Contreras, J. G. and Coughlan, J. A. and Coppens, Y. R. and Cox, B. E. and Cozzika, G. and Cvach, J. and Dainton, J. B. and Dau, W. D. and Daum, K. and de Boer, Y. and Delcourt, B. and Del Degan, M. and De Roeck, A. and De Wolf, E. A. and Diaconu, C. and Dodonov, V. and Dubak, A. and Eckerlin, G. and Efremenko, V. and Egli, S. and Eichler, R. and Eisele, F. and Eliseev, A. and Elsen, E. and Essenov, S. and Falkewicz, A. and Faulkner, P. J. W. and Favart, L. and Fedotov, A. and Felst, R. and Feltesse, J. and Ferencei, J. and Finke, L. and Fleischer, M. and Flucke, G. and Fomenko, A. and Franke, G. and Frisson, T. and Gabathuler, E. and Garutti, E. and Gayler, J. and Gerlich, C. and Ghazaryan, S. and Ginzburgskaya, S. and Glazov, A. and Glushkov, I. and Goerlich, L. and Goettlich, M. and Gogitidze, N. and Gorbounov, S. and Grab, C. and Greenshaw, T. and Gregori, M. and Grell, B. R. and Grindhammer, G. and Gwilliam, C. and Haidt, D. and Hansson, Magnus and Heinzelmann, G. and Henderson, R. C. W. and Henschel, H. and Herrera, G. and Hildebrandt, M. and Hiller, K. H. and Hoffmann, D. and Horisberger, R. and Hovhannisyan, A. and Hreus, T. and Hussain, S. and Ibbotson, M. and Ismail, M. and Jacquet, M. and Janssen, X. and Jemanov, V. and Jönsson, Leif and Johnson, C. L. and Johnson, D. P. and Jung, A. W. and Jung, Hannes and Kapichine, M. and Katzy, J. and Kenyon, I. R. and Kiesling, C. and Klein, M. and Kleinwort, C. and Klimkovich, T. and Kluge, T. and Knies, G. and Knutsson, Albert and Korbel, V. and Kostka, P. and Krastev, K. and Kretzschmar, J. and Kropivnitskaya, A. and Krueger, 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 Lindfeld, L. and Lipka, K. and Liptaj, A. and List, B. and List, J. and Lobodzinska, E. and Loktionova, N. and Lopez-Fernandez, R. and Lubimov, V. and Lucaci-Timoce, A. -I. and Lueders, H. and Lux, T. and Lytkin, L. and Makankine, A. and Malden, N. and Malinovski, E. and Marage, P. and Marshall, R. and Marti, L. and Martisikova, M. and Martyn, H. -U. and Maxfield, S. J. and Mehta, A. and Meier, K. and Meyer, A. B. and Meyer, H. and Meyer, J. and Michels, V. and Mikocki, S. and Milcewicz-Mika, I. and Milstead, D. and Mladenov, D. and Mohamed, A. and Moreau, F. and Morozov, A. and Morris, J. V. and Mozer, M. U. and Mueller, K. and Murin, P. and Nankov, K. and Naroska, B. and Naumann, T. and Newman, P. R. and Niebuhr, C. and Nikiforov, A. and Nowak, G. and Nowak, K. and Nozicka, M. and Oganezov, R. and Olivier, B. and Olsson, J. E. and Osman, Sakar and Ozerov, D. and Palichik, V. and Panagoulias, I. and Papadopoulou, T. and Pascaud, C. and Patel, G. D. and Peng, H. and Perez, E. and Perez-Astudillo, D. and Perieanu, A. and Petrukhin, A. and Pitzl, D. and Placakyte, R. and Portheault, B. and Povh, B. and Prideaux, P. and Rahmat, A. J. and Raicevic, N. and Reimer, P. and Rimmer, A. and Risler, C. and Rizvi, E. and Robmann, P. and Roland, B. and Roosen, R. and Rostovtsev, A. and Rurikova, Z. and Rusakov, S. and Salvaire, F. and Sankey, D. P. C. and Sauter, M. and Sauvan, E. and Schilling, F. -P. and Schmidt, S. and Schmitt, S. and Schmitz, C. and Schoeffel, L. and Schoening, A. and Schultz-Coulon, H. -C. and Sefkow, F. and Shaw-West, R. N. and Sheviakov, I. and Shtarkov, L. N. and Sloan, T. and Smirnov, P. and Soloviev, Y. and South, D. and Spaskov, V. and Specka, A. and Steder, M. and Stella, B. and Stiewe, J. and Stoilov, A. and Straumann, U. and Sunar, D. and Tchoulakov, V. and Thompson, G. and Thompson, P. D. and Toll, T. and Tomasz, F. and Traynor, D. and Trinh, T. N. and Truol, P. and Tsakov, I. and Tsipolitis, G. and Tsurin, I. and Turnau, J. and Tzamariudaki, E. and Urban, K. and Urban, M. and Usik, A. and Utkin, D. and Valkarova, A. and Vallee, C. and Van Mechelen, P. and Trevino, A. Vargas and Vazdik, Y. and Veelken, C. and Vinokurova, S. and Volchinski, V. and Wacker, K. and Weber, G. and Weber, R. and Wegener, D. and Werner, C. and Wessels, M. and Wessling, B. and Wissing, C. and Wolf, R. and Wuensch, E. and Xella, S. and Yan, W. and Yeganov, V. and Zacek, J. and Zalesak, J. and Zhang, Z. and Zhelezov, A. and Zhokin, A. and Zhu, Y. C. and Zimmermann, J. and Zimmermann, T. and Zohrabyan, H. and Zomer, F.},
  issn         = {1434-6044},
  language     = {eng},
  number       = {3},
  pages        = {749--766},
  publisher    = {Springer},
  series       = {European Physical Journal C. Particles and Fields},
  title        = {Diffractive deep-inelastic scattering with a leading proton at HERA},
  url          = {http://dx.doi.org/10.1140/epjc/s10052-006-0046-0},
  volume       = {48},
  year         = {2006},
}