Absolute photon energy calibration for the BESⅢ EMC

被引：1

作者：

边渐鸣 ^{[1
,2
]}

何康林 ^{[1
,2
]}

李卫国 ^{[1
]}

胡涛 ^{[1
]}

傅成栋 ^{[1
]}

黄彬 ^{[1
,2
]}

刘颖 ^{[1
]}

吕绮雯 ^{[3
]}

宁飞鹏 ^{[3
]}

宋文博 ^{[1
,2
]}

孙胜森 ^{[1
]}

徐敏 ^{[4
]}

言杰 ^{[4
]}

严亮 ^{[1
,2
]}

机构：

[1] Institute of High Energy Physics, CAS

[2] Graduate University of Chinese Academy of Sciences

[3] Shanxi University

[4] Department of Modern Physics, University of Science and Technology of China

来源：

中国物理C | 2010年 / 01期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

O572.212 [];

学科分类号：

070202 ;

摘要：

The absolute energy calibration with photons from π0’s for the BESⅢ EMC is discussed. Using 3 million hadronic events, the preliminary results are presented. Precision of about 1% in the photon energy measurement is obtained from crossing check using photons in ψ(2S)→γχc1,2(1P).

引用

页码：72 / 77

页数：6

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