CMD-3实验π介子形状因子的初步结果
Preliminary results on pion form factor at CMD-3
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摘要: 自2010年12月起,坐落在正负电子对撞机VEPP-2000上的CMD-3探测器成功取数.2013年首次在对撞能量小于1 GeV能区进行扫描,并获取积分亮度为18 pb-1的数据.本文给出了e+e-→π+π-截面的初步结果.Abstract: The CMD-3 detector has been successfully collecting data at the electron-positron collider VEPP-2000 since December 2010. The first scan below 1 GeV for a π+π- measurement was performed in 2013. The collected data sample corresponds to about 18 pb-1 of integrated luminosity in this energy range. Analysis of the e+e-→π+π- cross section is in progress. Preliminary results of this measurement are presented.
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