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arXiv 0905.1977hep-ex
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用KLOE测量强子截面及其对$(g-2)_μ$的贡献

Hadronic cross section measurements and contribution to $(g-2)_μ$ with KLOE

Paolo Beltrame

摘要:

DA $Φ$ NE $ϕ$工厂的KLOE实验利用初始态辐射事件对π介子形状因子进行了新的精确测量。结果的基础上,240 PB $^{-1}$和提取的$ππ$的贡献$a_μ$的质量范围$0.35< M^2_{ππ}<0.95$ GeV $^2$的综合光度。$a^{ππ}_μ$的新值具有更小的统计和系统误差,并且与KLOE公布的值一致(证实了当前标准模型预测的$a_μ$与测量值之间的不一致)。

英文摘要:

The KLOE experiment at the DA$Φ$NE $ϕ$-factory has performed a new precise measurement of the pion form factor using Initial State Radiation events. Results based on an integrated luminosity of 240 pb$^{-1}$ and extraction of the $ππ$ contribution to $a_μ$ in the mass range $0.35< M^2_{ππ}<0.95$ GeV$^2$ are presented. The new value of $a^{ππ}_μ$ has smaller statistical and systematic error and is consistent with the KLOE published value (confirming the current disagreement between the Standard Model prediction for $a_μ$ and the measured value).

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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