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arXiv 0710.2176hep-ex
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在$\sqrt{s}=$ 3.773和3.650 GeV的PDMATHAAD湮灭中产生的$π^+π^-π^+π^-π^0$、$K^+K^-π^+π^-π^0$和$p\bar pπ^+π^-π^0$末态的实验研究

Experimental studies of the $π^+π^-π^+π^-π^0$, $K^+K^-π^+π^-π^0$ and $p\bar pπ^+π^-π^0$ final states produced in $e^+e^-$ annihilation at $\sqrt{s}=$ 3.773 and 3.650 GeV

The BES Collaboration

摘要:

我们报告的测量所观察到的截面$e^+e^-\toωπ^+π^-$,$ωK^+K^-$,$ωp\bar p$,$K^+K^-ρ^0π^0$,$K^+K^-ρ^+π^-+c.c.$,$K^{*0}K^-π^+π^0+c.c.$,$K^{*+}K^-π^+π^-+c.c.$,$ϕπ^+π^-π^0$和$Λ\bar Λπ^0$在$\sqrt s=$ 3.773和3.650 GeV。上限(90% C.L.)给出了所观察到的横截面和$ψ(3770)$衰变分支分数为生产这些最终状态。这些测量是通过分析在BEPC对撞机上使用BES-II探测器在$\sqrt{s}=3.773$ GeV收集的17.3 pb $^{-1}$和在$\sqrt{s}=3.650$ GeV收集的6.5 pb $^{-1}$的数据集进行的。

英文摘要:

We report measurements of the observed cross sections for $e^+e^-\toωπ^+π^-$, $ωK^+K^-$, $ωp\bar p$, $K^+K^-ρ^0π^0$, $K^+K^-ρ^+π^-+c.c.$, $K^{*0}K^-π^+π^0+c.c.$, $K^{*+}K^-π^+π^-+c.c.$, $ϕπ^+π^-π^0$ and $Λ\bar Λπ^0$ at $\sqrt s=$ 3.773 and 3.650 GeV. Upper limits (90% C.L.) are given for observed cross sections and for $ψ(3770)$ decay branching fractions for production of these final states. These measurements are made by analyzing the data sets of 17.3 pb$^{-1}$ collected at $\sqrt{s}=3.773$ GeV and 6.5 pb$^{-1}$ collected at $\sqrt{s}=3.650$ GeV with the BES-II detector at the BEPC collider.

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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