Proposal for a Hadron Blind Detector for PHENIX

A. Kozlov; C. Aidala; B. Azmoun; Z. Fraenkel; T. Hemmick; B. Khachaturov; A. Milov; I. Ravinovich; I. Tserruya; S. Stoll; C. Woody; S. Zhou

arXiv · physics/0307101

Proposal for a Hadron Blind Detector for PHENIX

A. Kozlov·C. Aidala·B. Azmoun·Z. Fraenkel·T. Hemmick·B. Khachaturov·A. Milov·I. Ravinovich·I. Tserruya·S. Stoll·C. Woody·S. Zhou

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Abstract

A Hadron Blind Detector (HBD) is proposed as upgrade of the PHENIX detector at RHIC, BNL. The HBD will allow the measurement of low-mass e+e- pairs from the decay of the light vector mesons rho, omega, phi and the low-mass continuum in Au-Au collisions at energies up to sqrt{s_{NN}}= 200 GeV. From MC simulations and general considerations, the HBD has to identify electrons with very high efficiency (> 90%), double hit recognition better than 90%, moderate pion rejection factor of ~200 and radiation budget of the order of 1% of a radiation length. The first choice under study is a windowless Cherenkov detector, operated with pure CF4, in a special proximity focus configuration with a CsI photocathode and a multistage GEM amplification element.

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A. Kozlov, C. Aidala, B. Azmoun, Z. Fraenkel, T. Hemmick, B. Khachaturov, A. Milov, I. Ravinovich, I. Tserruya, S. Stoll, C. Woody, S. Zhou. 2003-07-21. Proposal for a Hadron Blind Detector for PHENIX. https://arxiv.org/abs/physics/0307101

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