Abstract
The timing, location and particle multiplicity of a PHENIX collision are determined by the Beam-Beam Counters (BBC), the Multiplicity/Vertex Detector (MVD) and the Zero-Degree Calorimeters (ZDC). The BBCs provide both the time of interaction and position of a collision from the flight time of prompt particles. The MVD provides a measure of event particle multiplicity, collision vertex position and fluctuations in charged particle distributions. The ZDCs provide information on the most grazing collisions. A Normalization Trigger Counter (NTC) is used to obtain absolute cross-section measurements for p-p collisions. The BBC, MVD and NTC are described below.
Original language | English |
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Pages (from-to) | 549-559 |
Number of pages | 11 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 499 |
Issue number | 2-3 |
DOIs | |
State | Published - Mar 1 2003 |
Funding
We acknowledge support from the Department of Energy (USA) and MEXT (Japan).
Funders | Funder number |
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U.S. Department of Energy | |
Ministry of Education, Culture, Sports, Science and Technology |
Keywords
- Cherenkov detectors
- Relativistic heavy-ion collisions
- Scintillation detectors
- Tracking and position sensitive detectors