STUDY OF PARTICLE IDENTIFICATION USING DE DX MEASUREMENT IN THE BES LARGE CYLINDRICAL DRIFT CHAMBER/

Authors
RONG G MA JM MAO HS BAI JZ XIE PP YAN J WANG YY MAO ZP LIU RG SUN SJ LI WG SONG XF WU ZD
Citation
G. Rong et al., STUDY OF PARTICLE IDENTIFICATION USING DE DX MEASUREMENT IN THE BES LARGE CYLINDRICAL DRIFT CHAMBER/, High energy physics & nuclear physics, 20(3), 1996, pp. 213-224
Citations number
7
Categorie Soggetti
Physics, Particles & Fields","Physics, Nuclear
Journal title
High energy physics & nuclear physics → ACNP
ISSN journal
08999996
Volume
20
Issue
3
Year of publication
1996
Pages
213 - 224
Database
ISI
SICI code
0899-9996(1996)20:3<213:SOPIUD>2.0.ZU;2-N
Abstract
The method for particle identification using dE/dx information from th e BES large cylindrical drift chamber is briefly described, The perfor mance of the particle identification using dE/dx is given, After apply ing systematic effect corrections and absolute energy calibration to t he dE/dx raw data, the dE/dx resolution of 7.5% is obtained for minimu m-ionizing particles (0.4-0.5 GeV/c pi) with more than 30 dE/dx sample s per track. This results in 3 sigma K/pi separation for momentum up t o 0.65 GeV/c and 3 sigma e/pi separation in a momentum range of 0.2 le ss than or equal to p less than or equal to 4 GeV/c.