Title of article
R measurement at BES Original Research Article
Author/Authors
BES Collaboration، نويسنده , , Guang-Pei Chen، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
4
From page
112
To page
115
Abstract
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.
Journal title
Nuclear physics A
Serial Year
2000
Journal title
Nuclear physics A
Record number
1192073
Link To Document