ELECTRON IDENTIFICATION IN THE PHENIX EXPERIMENT USING A TRACKING TRD

Authors
OBRIEN E BENNETT M CHERNIATIN V CHI CY CHIKANIAN A LI Q NAGAMIYA S NAGLE J POPE K SANGSTER C KUMAR BS SMIRNOV N WOHN F ZHENG W
Citation
E. Obrien et al., ELECTRON IDENTIFICATION IN THE PHENIX EXPERIMENT USING A TRACKING TRD, Nuclear physics. A, 566, 1994, pp. 30000615-30000618
Citations number
4
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. A → ACNP
ISSN journal
03759474
Volume
566
Year of publication
1994
Pages
30000615 - 30000618
Database
ISI
SICI code
0375-9474(1994)566:<30000615:EIITPE>2.0.ZU;2-V
Abstract
Measuring dielectron physics signals at RHIC will require the ability to separate electrons from pions to a level of better than 2 x 10(-4) over momenta ranging from 0.1 GeV/c to 5.0 GeV/c. Particle identificat ion over this momentum range is realized in the PHENIX detector at RHI C by a combination of detector subsystems, one of which is a tracking TRD. The PHENIX tracking TRD allows electron-pion separation utilizing both TR and dE/dx information, while simultaneously tracking charged particles with good position accuracy. The electron-pion separation of this device is better than 3x10(-3) for particles with momenta rangin g from 250 MeV/c to over 10 GeV/c.