Published April 1, 2011
| Version v1
Journal article
Measurements of low mass e+e- pairs in p+p and Au+Au collisions with the HBD upgrade of the PHENIX detector
Description
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 CF4 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 π0 Dalitz decays and conversion. This article reports on the in-beam performance of the HBD.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.nuclphysa.2011.02.055Additional details
Identifiers
- DOI
- 10.1016/j.nuclphysa.2011.02.055;
- PII
- S0375-9474(11)00142-4;
Publishing Information
- Journal Title
- Nuclear Physics. A
- Journal Volume
- 855
- Journal Issue
- 1
- Journal Page Range
- p. 265-268
- ISSN
- 0375-9474
- CODEN
- NUPABL
Conference
- Title
- 4. international conference on hard and electromagnetic probes of high-energy nuclear collisions
- Acronym
- HP2010
- Dates
- 10-15 Oct 2010
- Place
- Eilat (Israel)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42055139
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ATOM-ATOM COLLISIONS; BEAMS; BROOKHAVEN RHIC; CARBON TETRAFLUORIDE; CHARGED PARTICLE DETECTION; CHERENKOV COUNTERS; CONVERSION; DECAY; ELECTRON-PROTON INTERACTIONS; GOLD; HADRONS; MASS; MASS SPECTRA; NUCLEAR MATTER; PAIR PRODUCTION; PHOTOCATHODES; PIONS NEUTRAL; PROTON-PROTON INTERACTIONS
- Descriptors DEC
- ACCELERATORS; ATOM COLLISIONS; BARYON-BARYON INTERACTIONS; BOSONS; CATHODES; COLLISIONS; DETECTION; ELECTRODES; ELECTRON-NUCLEON INTERACTIONS; ELEMENTARY PARTICLES; ELEMENTS; FLUORINATED ALIPHATIC HYDROCARBONS; HADRON-HADRON INTERACTIONS; HADRONS; HALOGENATED ALIPHATIC HYDROCARBONS; HEAVY ION ACCELERATORS; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; MATTER; MEASURING INSTRUMENTS; MESONS; METALS; NUCLEON-NUCLEON INTERACTIONS; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PIONS; PROTON-NUCLEON INTERACTIONS; PSEUDOSCALAR MESONS; RADIATION DETECTION; RADIATION DETECTORS; SPECTRA; STORAGE RINGS; TRANSITION ELEMENTS
Optional Information
- Copyright
- Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.