High energy deeply virtual Compton scattering on a photon and related meson exclusive production
In this work we estimate the differential cross section for the high energy deeply virtual Compton scattering on a photon target, {gamma}*{gamma}{yields}{gamma}{gamma}, within the QCD dipole-dipole scattering formalism. For the phenomenology, a saturation model for the dipole-dipole cross section fo...
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Veröffentlicht in: | Physical review. D, Particles and fields Particles and fields, 2007-03, Vol.75 (5), Article 054008 |
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Sprache: | eng |
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Zusammenfassung: | In this work we estimate the differential cross section for the high energy deeply virtual Compton scattering on a photon target, {gamma}*{gamma}{yields}{gamma}{gamma}, within the QCD dipole-dipole scattering formalism. For the phenomenology, a saturation model for the dipole-dipole cross section for two photon scattering is considered. Its robustness is supported by a good description of current accelerator data. In addition, we consider the related exclusive vector meson production processes, {gamma}*{gamma}{yields}V{gamma}. This analysis is focused on the light {rho} and {phi} meson production, which produces larger cross sections. The phenomenological results are compared with the theoretical calculation using the color-dipole Balitsky-Fadin-Kuraev-Lipatov approach. |
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ISSN: | 1550-7998 0556-2821 1550-2368 1089-4918 |
DOI: | 10.1103/PhysRevD.75.054008 |