R measurement at BES

被引：0
|
作者：
Chen, GP [1 ]
机构：
[1] CAS, IHEP, Beijing 100039, Peoples R China
来源：
NUCLEAR PHYSICS A | 2000年 / 675卷 / 1-2期
关键词：
D O I：
暂无
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
By using the upgraded Beijing Spectrometer (BESII), the total cross section for e(+)e(-) annihilation into hadronic final states at center-of-mass energies between 2 to 5 GeV are measured. Values of R at 2.6, 3.2, 3.4, 3.55, 4.6 and 5.0 GeV are determined, preliminary results for part of the successive points are also presented.
引用
收藏
页码：112C / 115C
页数：4
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