Exclusive vector meson production at HERA from QCD with saturation

Journal Article · Wed Aug 01 00:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.034011· OSTI ID:21027506

Marquet, C; Peschanski, R; Soyez, G ^[1]

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1. RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973 (United States)

Following recent predictions that the geometric scaling properties of deep inelastic scattering data in inclusive {gamma}*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.

• OSTI ID: 21027506
• Journal Information: Physical Review. D, Particles Fields, Vol. 76, Issue 3; Other Information: DOI: 10.1103/PhysRevD.76.034011; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
COMPTON EFFECT
DEEP INELASTIC SCATTERING
DIFFRACTION MODELS
HERA STORAGE RING
INCLUSIVE INTERACTIONS
MOMENTUM TRANSFER
PARTICLE PRODUCTION
PHOTON-PROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
VECTOR MESONS