arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0807.1612hep-ex
收藏

具有ISR事件的$F_π$的精确新KLOE测量以及$ππ$对[0.35,0.95] GeV $^2$的$a_μ$的贡献的测定

A precise new KLOE measurement of $F_π$ with ISR events and determination of $ππ$ contribution to $a_μ$ for [0.35,0.95] GeV$^2$

Federico Nguyen

摘要:

在DA $Φ$ NE $ϕ$工厂的KLOE实验已经使用初始状态辐射事件对π介子形状因子进行了新的精确测量,光子以小极角发射。给出了基于240 pb $^{-1}$的积分光度和在[0.35,0.95] GeV $^2$质量范围内提取$ππ$对$a_μ$贡献的结果,相对于已发表的KLOE结果,系统不确定性降低了。

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, with photons emitted at small polar angle. Results based on an integrated luminosity of 240 pb$^{-1}$ and extraction of the $ππ$ contribution to $a_μ$ in the mass range [0.35,0.95] GeV$^2$ are presented, the systematic uncertainty is reduced with respect to the published KLOE result.

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。

↑