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ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 2007, vol. 76, p. -

Reanalysis of the e+e-→ηγ reaction cross section

Achasov M. N., Beloborodov K. I., Berdyugin A. V., Bogdanchikov A. G., Bukin A. D., Bukin D. A., Dimova T. V., Druzhinin V. P., Golubev V. B., Korol A. A., Koshuba S. V., Pakhtusova E. V., Serednyakov S. I., Silagadze Z. K., Vasiljev A. V.

In the experiment with the SND detector at the VEPP-2M e+e- collider measuring the e+e-→ηγ cross section in the energy range 0.6<s<1.38GeV the reanalysis of data is performed. The goal is to improve the accuracy of the previous results by analyzing ambiguities in the approximation of energy dependence of the e+e-→ηγ cross section, which were not taken into account in our previous study. We report new results on the approximation of the e+e-→ηγ cross section based on the vector dominance model under new model parameter assumptions. © 2007 The American Physical Society.