CMD-3实验
π
介子形状因子的初步结果

doi:10.3969/j.issn.0253-2778.2016.04.010

中国科学技术大学学报 ›› 2016, Vol. 46 ›› Issue (4): 323-330.DOI: 10.3969/j.issn.0253-2778.2016.04.010

CMD-3实验 π 介子形状因子的初步结果

AKHMETSHIN R.R.

1.布德克尔核物理研究所，新西伯利亚 630090，俄罗斯； 2.新西伯利亚州立大学，新西伯利亚 630090，俄罗斯； 3.新西伯利亚州立理工大学，新西伯利亚 630092，俄罗斯； 4.悉尼大学物理学院，福基纳高能物理，新南威尔士州 2006, 澳大利亚

收稿日期:2015-11-30 修回日期:2016-04-20 出版日期:2016-04-30 发布日期:2016-04-30

Preliminary results on pion form factor at CMD-3

AKHMETSHIN R.R.

1.Budker Institute of Nuclear Physics, Novosibirsk 630090, Russia; 2.Novosibirsk State University, Novosibirsk 630090, Russia; 3.Novosibirsk State Technical University, Novosibirsk 630092, Russia; 4.Falkiner High Energy Physics, Department, School of Physics, University of Sydney, New South Wales 2006, Australia

Received:2015-11-30 Revised:2016-04-20 Online:2016-04-30 Published:2016-04-30
Contact: IGNATOV F.V.

摘要/Abstract

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.

关键词: π介子形状因子, 正负电子对撞机, 强子截面

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.

Key words: pion form factor, electron positron collider, hadron cross section

AKHMETSHIN R.R., AMIRKHANOV A.N., ANISENKOV A.V., AULCHENKO V.M., BANZAROV V. CMD-3实验 π 介子形状因子的初步结果[J]. 中国科学技术大学学报, 2016, 46(4): 323-330.

AKHMETSHIN R.R., AMIRKHANOV A.N., ANISENKOV A.V., AULCHENKO V.M., BANZAROV V.Sh., BASHTOVOY N.S., BERKAEV D.E., BONDAR A.E., BRAGIN A.V., FEDOTOVICH G.V., EIDELMAN S.I., EPIFANOV D.A., EPS. Preliminary results on pion form factor at CMD-3[J]. Journal of University of Science and Technology of China, 2016, 46(4): 323-330.

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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