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Exclusive vector meson production at HERA from QCD with saturation

C. Marquet*

R. Peschanski†

G. Soyez‡,§

  • RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA

  • Service de Physique Théorique, CEA/Saclay, 91191 Gif-sur-Yvette cedex, France URA 2306, unité de recherche associée au CNRS

  • LPTHE, Université P. et M. Curie (Paris 6), Université D. Diderot (Paris 7) Tour 24-25, 5e Etage, Boîte 126, 4 place Jussieu, 75252 Paris cedex 05, France UMR 7589, unité mixte de recherche du CNRS

  • *marquet@quark.phy.bnl.gov
  • †pesch@spht.saclay.cea.fr
  • ‡On leave from the fundamental theoretical physics group of the University of Liège.
  • §g.soyez@ulg.ac.be
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Phys. Rev. D 76, 034011 – Published 16 August, 2007

DOI: https://doi.org/10.1103/PhysRevD.76.034011

Abstract

Following recent predictions that the geometric scaling properties of deep inelastic scattering data in inclusive γ*p collisions are expected also in exclusive diffractive processes, we investigate the diffractive production of vector mesons. Using analytic results in the framework of the Balitsky-Kovchegov (BK) equation at nonzero momentum transfer, we extend to the nonforward amplitude a QCD-inspired forward saturation model including charm, following the theoretical predictions for the momentum transfer dependence of the saturation scale. We obtain a good fit to the available HERA data and make predictions for deeply virtual Compton scattering measurements.

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References (29)

  1. A. M. Stasto, K. Golec-Biernat, and J. Kwiecinski, Phys. Rev. Lett. 86, 596 (2001). For a recent discussion, see F. Gelis, R. Peschanski, G. Soyez, and L. Schoeffel, Phys. Lett. B 647, 376 (2007).
  2. C. Marquet and L. Schoeffel, Phys. Lett. B 639, 471 (2006).
  3. A. H. Mueller, Nucl. Phys. B335, 115 (1990); N. N. Nikolaev and B. G. Zakharov, Z. Phys. C 49, 607 (1991).
  4. E. Iancu, K. Itakura, and L. McLerran, Nucl. Phys. A724, 181 (2003).
  5. I. Balitsky, Nucl. Phys. B463, 99 (1996); Phys. Lett. B 518, 235 (2001); Yu. V. Kovchegov, Phys. Rev. D 60, 034008 (1999); 61, 074018 (2000).
  6. S. Munier and R. Peschanski, Phys. Rev. Lett. 91, 232001 (2003); Phys. Rev. D 69, 034008 (2004); 70, 077503 (2004).
  7. L. N. Lipatov, Sov. J. Nucl. Phys. 23, 338 (1976); E. A. Kuraev, L. N. Lipatov, and V. S. Fadin, Sov. Phys. JETP 45, 199 (1977); I. I. Balitsky and L. N. Lipatov, Sov. J. Nucl. Phys. 28, 822 (1978).
  8. A. Kovner and U. A. Wiedemann, Phys. Rev. D 66, 051502 (2002); Phys. Lett. B 551, 311 (2003); E. Ferreiro, E. Iancu, K. Itakura, and L. McLerran, Nucl. Phys. A710, 373 (2002).
  9. K. Golec-Biernat and A. M. Stasto, Nucl. Phys. B668, 345 (2003); E. Gotsman, M. Kozlov, E. Levin, U. Maor, and E. Naftali, A742, 55 (2004).
  10. C. Marquet, R. Peschanski, and G. Soyez, Nucl. Phys. A756, 399 (2005).
  11. C. Marquet and G. Soyez, Nucl. Phys. A760, 208 (2005).
  12. L. N. Lipatov, Sov. Phys. JETP 63, 904 (1986); H. Navelet and R. Peschanski, Nucl. Phys. B507, 353 (1997).
  13. G. Soyez, arXiv:0705.3672.
  14. J. D. Bjorken, J. B. Kogut, and D. E. Soper, Phys. Rev. D 3, 1382 (1971).
  15. J. Nemchik, N. N. Nikolaev, and B. G. Zakharov, Phys. Lett. B 341, 228 (1994); J. Nemchik, N. N. Nikolaev, E. Predazzi, and B. G. Zakharov, Z. Phys. C 75, 71 (1997).
  16. L. Frankfurt, W. Koepf, and M. Strikman, Phys. Rev. D 54, 3194 (1996).
  17. H. G. Dosch, T. Gousset, G. Kulzinger, and H. J. Pirner, Phys. Rev. D 55, 2602 (1997); G. Kulzinger, H. G. Dosch, and H. J. Pirner, Eur. Phys. J. C 7, 73 (1999).
  18. E. Iancu, K. Itakura, and S. Munier, Phys. Lett. B 590, 199 (2004).
  19. C. Marquet, arXiv:0706.2682.
  20. C. Adloff et al. (H1 Collaboration), Eur. Phys. J. C 13, 371 (2000).
  21. S. Chekanov et al. (ZEUS Collaboration), Nucl. Phys. B718, 3 (2005).
  22. S. Chekanov et al. (ZEUS Collaboration), Nucl. Phys. B695, 3 (2004).
  23. A. Aktas et al. (H1 Collaboration), Eur. Phys. J. C 46, 585 (2006).
  24. J. Breitweg et al. (ZEUS Collaboration), Eur. Phys. J. C 6, 603 (1999).
  25. A. Aktas et al. (H1 Collaboration), Eur. Phys. J. C 44, 1 (2005).
  26. S. Munier, A. M. Stasto, and A. H. Mueller, Nucl. Phys. B603, 427 (2001).
  27. H. Kowalski and D. Teaney, Phys. Rev. D 68, 114005 (2003).
  28. H. Kowalski, L. Motyka, and G. Watt, Phys. Rev. D 74, 074016 (2006).
  29. J. R. Forshaw, R. Sandapen, and G. Shaw, J. High Energy Phys. 11 (2006) 025; Phys. Rev. D 69, 094013 (2004).

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Phys. Rev. D 76, 034011– Published 16 August, 2007
  • Received 19 February 2007

© 2007 American Physical Society

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