2006/05/31 by M. N. Achasov, М. Н. Ачасов, V. M. Aulchenko +29
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1103/physrevd.74.014016
published as Phys.Rev.D74:014016,2006 · 13 pages, 6 figures, 5 tables
arxiv created 2006/06/27 · openalex publication_date 2006/07/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
In experiment with the SND detector at the VEPP-2M e+e^\ensuremath- collider the e+e^\ensuremath-\ensuremath→\ensuremathη\ensuremathγ cross section was measured in the center-of-mass energy range E=0.60--1.38 GeV with the integrated luminosity of 27.8 pb^\ensuremath-1. The measured cross section is well described by the vector meson dominance model with contributions from the \ensuremathρ(770), \ensuremathω(783), \ensuremathφ(1020), \ensuremathρ^\ensuremath'(1465) resonances and agrees with results of previous measurements. The decay probabilities B(\ensuremathφ\ensuremath→\ensuremathη\ensuremathγ), B(\ensuremathω\ensuremath→\ensuremathη\ensuremathγ) and B(\ensuremathρ\ensuremath→\ensuremathη\ensuremathγ) were measured with the accuracies better than or comparable to the world averages.