English

Construction and Expected Performance of the Hadron Blind Detector for the PHENIX Experiment at RHIC

Instrumentation and Detectors 2008-11-26 v1

Abstract

A new Hadron Blind Detector (HBD) for electron identification in high density hadron environment has been installed in the PHENIX detector at RHIC in the fall of 2006. The HBD will identify low momentum electron-positron pairs to reduce the combinatorial background in the e+ee^{+}e^{-} mass spectrum, mainly in the low-mass region below 1 GeV/c2^{2}. The HBD is a windowless proximity-focusing Cherenkov detector with a radiator length of 50 cm, a CsI photocathode and three layers of Gas Electron Multipliers (GEM). The HBD uses pure CF4_{4} as a radiator and a detector gas. Construction details and the expected performance of the detector are described.

Keywords

Cite

@article{arxiv.physics/0701273,
  title  = {Construction and Expected Performance of the Hadron Blind Detector for the PHENIX Experiment at RHIC},
  author = {A Milov and W Anderson and B Azmoun and C-Y Chi and A Drees and A Dubey and M Durham and Z Fraenkel and J Harder and T Hemmick and R Hutter and B Jacak and J Kamin and A Kozlov and M Naglis and P O'Connor and R Pisani and V Radeka and I Ravinovich and T Sakaguchi and D Sharma and A Sickles and S Stoll and I Tserruya and B Yu and C Woody},
  journal= {arXiv preprint arXiv:physics/0701273},
  year   = {2008}
}

Comments

QM2006 proceedings, 4 pages 3 figures