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Title: Nonlinearity of vacuum Reggeons and exclusive diffractive production of vector mesons at HERA

Abstract

The processes of exclusive photo- and electroproduction of vector mesons {rho}{sup 0}(770), {phi}(1020), and J/{psi}(3096) at collision energies 30 GeV<W<300 GeV and transferred momenta squared 0<-t<2 GeV{sup 2} are considered in the framework of a phenomenological Regge-eikonal scheme with nonlinear Regge trajectories in which their QCD asymptotic behavior is taken into account explicitly. By comparison of available experimental data from ZEUS and H1 Collaborations with the model predictions it is demonstrated that corresponding angular distributions and integrated cross sections in the above-mentioned kinematical range can be quantitatively described with use of two C-even vacuum Regge trajectories. These are the 'soft' Pomeron dominating the high-energy reactions without a hard scale and the 'hard' Pomeron giving an essential contribution to photo- and electroproduction of heavy vector mesons and deeply virtual electroproduction of light vector mesons.

Authors:
;  [1]
  1. Institute for High Energy Physics, 142281 Protvino (Russian Federation)
Publication Date:
OSTI Identifier:
21250632
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 78; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.78.034028; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANGULAR DISTRIBUTION; ASYMPTOTIC SOLUTIONS; COLLISIONS; COMPARATIVE EVALUATIONS; CROSS SECTIONS; EIKONAL APPROXIMATION; ELECTROPRODUCTION; FORECASTING; GEV RANGE; HERA STORAGE RING; MULTIPARTICLE SPECTROMETERS; NONLINEAR PROBLEMS; PARTICLE IDENTIFICATION; PHOTOPRODUCTION; POMERANCHUK PARTICLES; QUANTUM CHROMODYNAMICS; REGGE TRAJECTORIES; VECTOR MESONS

Citation Formats

Godizov, A A, and Petrov, V A. Nonlinearity of vacuum Reggeons and exclusive diffractive production of vector mesons at HERA. United States: N. p., 2008. Web. doi:10.1103/PHYSREVD.78.034028.
Godizov, A A, & Petrov, V A. Nonlinearity of vacuum Reggeons and exclusive diffractive production of vector mesons at HERA. United States. https://doi.org/10.1103/PHYSREVD.78.034028
Godizov, A A, and Petrov, V A. 2008. "Nonlinearity of vacuum Reggeons and exclusive diffractive production of vector mesons at HERA". United States. https://doi.org/10.1103/PHYSREVD.78.034028.
@article{osti_21250632,
title = {Nonlinearity of vacuum Reggeons and exclusive diffractive production of vector mesons at HERA},
author = {Godizov, A A and Petrov, V A},
abstractNote = {The processes of exclusive photo- and electroproduction of vector mesons {rho}{sup 0}(770), {phi}(1020), and J/{psi}(3096) at collision energies 30 GeV<W<300 GeV and transferred momenta squared 0<-t<2 GeV{sup 2} are considered in the framework of a phenomenological Regge-eikonal scheme with nonlinear Regge trajectories in which their QCD asymptotic behavior is taken into account explicitly. By comparison of available experimental data from ZEUS and H1 Collaborations with the model predictions it is demonstrated that corresponding angular distributions and integrated cross sections in the above-mentioned kinematical range can be quantitatively described with use of two C-even vacuum Regge trajectories. These are the 'soft' Pomeron dominating the high-energy reactions without a hard scale and the 'hard' Pomeron giving an essential contribution to photo- and electroproduction of heavy vector mesons and deeply virtual electroproduction of light vector mesons.},
doi = {10.1103/PHYSREVD.78.034028},
url = {https://www.osti.gov/biblio/21250632}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 3,
volume = 78,
place = {United States},
year = {Fri Aug 01 00:00:00 EDT 2008},
month = {Fri Aug 01 00:00:00 EDT 2008}
}