The diffraction cone for exclusive vector meson production in deep inelastic scattering View Full Text


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Article Info

DATE

1998-06

AUTHORS

J. Nemchik, N. N. Nikolaev, E. Predazzi, B. G. Zakharov, V. R. Zoller

ABSTRACT

We develop the color dipole gBFKL phenomenology of a diffraction cone for photo-and electroproduction γ*N−VN of heavy vector mesons (charmonium & bottomonium) at HERA and in fixed target experiments. We predict a substantial shrinkage of the diffraction cone from the CERN/FNAL to the HERA range of c.m.s. energy W. The Q2-controlled sensitivity to the color dipole size (scanning phenomenon) is shown to lead to a decrease of the diffraction slope with Q2 (which is supported by the available experimental data). We predict an approximate flavor independence of the diffraction slope in the scaling variable Q2+mV2. For diffractive production of the radially excited 2S states (Ψ′, γ′), a counterintuitive inequality of diffraction slopes B(2S)≲B(1S) is predicted, which defies the common wisdom that diffraction slopes are larger for reactions with larger size particles. More... »

PAGES

1054-1073

References to SciGraph publications

  • 1993-03. DiffractiveJ/Ψ electroproduction in LLA QCD in ZEITSCHRIFT FÜR PHYSIK C PARTICLES AND FIELDS
  • 1987-12. Measurement ofJ/ψ and ψ′ real photoproduction on lithium-6 at a mean energy of 90 GeV in ZEITSCHRIFT FÜR PHYSIK C PARTICLES AND FIELDS
  • 1991-12. Colour transparency and scaling properties of nuclear shadowing in deep inelastic scattering in ZEITSCHRIFT FÜR PHYSIK C PARTICLES AND FIELDS
  • 1997-06. Measurement of elastic J/ψ photoproduction at HERA in ZEITSCHRIFT FÜR PHYSIK C PARTICLES AND FIELDS
  • 1993-12. Structure functions of bound nucleons: From the EMC effect to nuclear shadowing in ZEITSCHRIFT FÜR PHYSIK C PARTICLES AND FIELDS
  • 1997-08. The BFKL-Regge phenomenology of deep inelastic scattering in JETP LETTERS
  • 1987-09. Vacuum structure and diffraction scattering in ZEITSCHRIFT FÜR PHYSIK C PARTICLES AND FIELDS
  • 1997-03. Color dipole phenomenology of diffractive electroproduction of light vector mesons at HERA in ZEITSCHRIFT FÜR PHYSIK C PARTICLES AND FIELDS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1134/1.558573

    DOI

    http://dx.doi.org/10.1134/1.558573

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1019310588


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