New methods to measure integrated luminosity at BES

Authors
Huang, GS Cheng, BS Yuan, CZ Li, XH Qi, XR Liu, J Chen, GP Chen, JC Hu, HM Hu, T Ju, X Li, J Mao, ZP Xue, ST Zhang, LS Zheng, ZP Zhou, L Zhao, ZG
Citation
Gs. Huang et al., New methods to measure integrated luminosity at BES, HIGH EN P N, 24(5), 2000, pp. 373-378
Citations number
8
Categorie Soggetti
Physics
Journal title
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
ISSN journal
02543052 → ACNP
Volume
24
Issue
5
Year of publication
2000
Pages
373 - 378
Database
ISI
SICI code
0254-3052(200005)24:5<373:NMTMIL>2.0.ZU;2-P
Abstract
Two new methods are introduced for the first time at BES to measure the int egrated luminosity from events in large angle produced by QED dimuon and tw o-gamma production processes. With these methods,the integrated luminositie s of the 6 energy points at 2.6,3.2,3.4,3.55,4.6 and 5.0 GeV scanned for th e measurement of R are determined. The measured integrated luminosities are consistent with that determined using large angle Bhabha events.