Reconstruction of Photon Conversions and Precise Measurement of Photon Energy at BESⅡ

Get Citation
ZHANG Chang-Chun, WANG Zhe and YUAN Ye. Reconstruction of Photon Conversions and Precise Measurement of Photon Energy at BESⅡ[J]. Chinese Physics C, 2006, 30(5): 378-386.
ZHANG Chang-Chun, WANG Zhe and YUAN Ye. Reconstruction of Photon Conversions and Precise Measurement of Photon Energy at BESⅡ[J]. Chinese Physics C, 2006, 30(5): 378-386. shu
Milestone
Received: 2005-09-09
Revised: 2006-01-05
Article Metric

Article Views(2719)
PDF Downloads(655)
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:

Reconstruction of Photon Conversions and Precise Measurement of Photon Energy at BESⅡ

    Corresponding author: ZHANG Chang-Chun,
  • Institute of High Energy Physics, CAS, Beijing 100049, China2 Department of Technical Physics, Peking University, Beijing 100871, China3 Department of Engineering Physics, Tsinghua University, Beijing 100084, China

Abstract: Using Monte Carlo simulation, reconstruction of photon conversions is studied, and the detection efficiency and energy resolution as a function of photon energy are obtained.The dE/dx correction for the electrons from photon conversions and the energy scale for the photons are calibrated with BESⅡ data. An improved Crystal Ball function describes well the energy distribution of the photons. Photon energy resolutions in the range from 2.3 to 3.8MeV are found for the photons with energy from 100 to 260MeV at the BESⅡ~detector.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return