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arXiv 0710.0786hep-ex
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在\sqrt{s} = 3.773和3.650 GeV处e^+e^-湮灭中轻强子单独产生的观测截面的测量

Measurements of the observed cross sections for exclusive light hadron production in e^+e^- annihilation at \sqrt{s}= 3.773 and 3.650 GeV

The BES Collaboration

摘要:

通过分析BEPC对撞机上BESI探测器在$\sqrt{s}=3.773$ GeV和$\sqrt{s}=3.650$ GeV获得的17.3 pb和6.5 pb $^{-1}$数据集,测量了$e^+e^-$在两个能点湮灭产生的12个排它轻强子末态的观测截面。我们还对$ψ(3770)$在90% C. L.时衰变到这些终态的观测到的截面和分支分数设定了上限。

英文摘要:

By analyzing the data sets of 17.3 pb$^{-1}$ taken at $\sqrt{s}=3.773$ GeV and 6.5 pb$^{-1}$ taken at $\sqrt{s}=3.650$ GeV with the BESII detector at the BEPC collider, we have measured the observed cross sections for 12 exclusive light hadron final states produced in $e^+e^-$ annihilation at the two energy points. We have also set the upper limits on the observed cross sections and the branching fractions for $ψ(3770)$ decay to these final states at 90% C.L.

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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