Reanalysis of the $e^+e^-\toηγ$ reaction cross section

Details Reanalysis of the $e^+e^-\toηγ$ reaction cross section Reanalysis of the $e^+e^-\toηγ$ reaction cross section

2007-09-07

arxiv.org/abs/0709.1007v1

Phys.Rev.D76:077101,2007

Physics

High Energy Physics

High Energy Physics - Experiment

3 pages, 4 tables

Scientific paper

10.1103/PhysRevD.76.077101

In the experiment with the SND detector at the VEPP-2M $e^+e^-$ collider measuring the $e^+e^-\to \eta\gamma$ cross section in the energy range $0.6<\sqrt{s}<1.38 \mathrm{GeV}$ the reanalysis of data is performed. The goal is to improve the accuracy of the previous results by analysing ambiguities in the approximation of energy dependence of the $e^+e^-\to \eta\gamma$ cross section, which were not taken into account in our previous study. We report new results on the approximation of the $e^+e^-\to \eta\gamma$ cross section based on Vector Dominance Model under new model parameter assumptions.

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