2008/08/31 by V. V. Braguta, A. K. Likhoded, A. V. Luchinsky · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.78.074032
published as Phys.Rev.D78:074032,2008 · 10 pages, 2 tables, 6 figures; minor changes; article accepted to publication is Phys. Rev. D
arxiv created 2008/10/17 · openalex publication_date 2008/10/31 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
This paper is devoted to consideration of the hard exclusive processes e+e^\ensuremath-\ensuremath→VP, where V=\ensuremathρ, \ensuremathφ; P=\ensuremathη, \ensuremathη^\ensuremath'. Experimental measurement of the cross section of the process e+e^\ensuremath-\ensuremath→\ensuremathφ\ensuremathη at the BABAR Collaboration at large center of mass energy √(s)=10.6 GeV and some low energy experimental data √(s)\ensuremath∼2--4 GeV give us the possibility to study the cross section in the broad energy region. As a result, we have determined the asymptotic behavior of the cross section of e+e^\ensuremath-\ensuremath→\ensuremathφ\ensuremathη in the limit s\ensuremath→\ensuremath∞, which is in agreement with perturbative QCD prediction. Assuming that the same asymptotic behavior is valid for the other processes under consideration and using low energy experimental data, we have predicted the cross sections of these processes at energies √(s)=3.67, 10.6 GeV. In addition, we have calculated the cross sections of these processes at the same energies within perturbative QCD. Our results are in agreement with available experimental data.