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arXiv 0709.1007hep-ex
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$e^+e^-\toηγ$反应截面的再分析

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

M. N. Achasov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov, A. D. Bukin, D. A. Bukin, T. V. Dimova, V. P. Druzhinin, V. B. Golubev, A. A. Korol, S. V… 展开作者

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

摘要:

在VEPP-2 M $e^+e^-$对撞机上用SND探测器测量能量范围为$0.6<\sqrt{s}<1.38 \mathrm{GeV}$的$e^+e^-\to ηγ$截面的实验中,对数据进行了再分析。我们的目标是提高以前的结果的准确性,通过分析模糊的近似能量依赖的$e^+e^-\to ηγ$截面,这是没有考虑到在我们以前的研究。我们报告了新的结果近似的$e^+e^-\to ηγ$截面的基础上矢量优势模型下的新的模型参数假设。

英文摘要:

In the experiment with the SND detector at the VEPP-2M $e^+e^-$ collider measuring the $e^+e^-\to ηγ$ 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 $e^+e^-\to ηγ$ cross section, which were not taken into account in our previous study. We report new results on the approximation of the $e^+e^-\to ηγ$ cross section based on Vector Dominance Model under new model parameter assumptions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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