Measurements of low mass [formula omitted] pairs in p+p and Au+Au collisions with the HBD upgrade of the PHENIX detector

Mihael Makek

doi:10.1016/j.nuclphysa.2011.02.055

Measurements of low mass [formula omitted] pairs in p+p and Au+Au collisions with the HBD upgrade of the PHENIX detector

Mihael Makek

https://doi.org/10.1016/j.nuclphysa.2011.02.055

Copy DOI

Journal: Nuclear physics. A	Publication Date: Apr 1, 2011
Citations: 1

Affiliation: Weizmann Institute of Science

#Hadron Blind Detector #Dielectron Invariant Mass Spectrum + Show 8 more

Abstract
Full-Text PDF
Similar Papers

Abstract

The Hadron Blind Detector (HBD) was developed, installed and successfully operated in the PHENIX detector during RHIC Runs in 2009 (p+p) and 2010 (Au+Au). The HBD is a windowless Cherenkov detector, operated with CF 4 gas in proximity focus configuration. It uses triple GEM elements for signal amplification with CsI photocathode evaporated on top of the first GEM. The purpose of the HBD is to reduce the combinatorial background from the dielectron invariant mass spectrum by recognizing and rejecting e + or e − originating from π 0 Dalitz decays and conversion. This article reports on the in-beam performance of the HBD.

Full Text