R Measurement and Standard Model Test

Get Citation
HUANG Guang-Shun. R Measurement and Standard Model Test[J]. Chinese Physics C, 2002, 26(S1): 41-46.
HUANG Guang-Shun. R Measurement and Standard Model Test[J]. Chinese Physics C, 2002, 26(S1): 41-46. shu
Milestone
Received: 1900-01-01
Revised: 1900-01-01
Article Metric

Article Views(1570)
PDF Downloads(600)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

R Measurement and Standard Model Test

    Corresponding author: HUANG Guang-Shun,
  • Institute of High Energy Physics, CAS, Beijing 100039, ChinaChina Center of Advanced Science and Technology, Beijing 100080, China

Abstract: With an upgraded Beijing Spectrometer (BESII) at the Beijing Electron Positron Collider (BEPC), the BES collaboration finished two runs of R scan in the energy region from 2 to 5 GeV. R values for all 6+85 scanned energy points are presented, with an average undertainty of 6.6%,which represents an improvement by a factor of 2—3. These measurements make an important contribution to the precision determination of a(M2Z), the QED coupling constant evaluated at the Z pole. The results also contribute to the interpretation of muon g-2 measurement.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return