A reaction plane detector for PHENIX at RHIC

A plastic scintillator paddle detector with embedded fiber light guides and photomultiplier tube readout, referred to as the Reaction Plane Detector (RXNP), was designed and installed in the PHENIX experiment prior to the 2007 run of the Relativistic Heavy Ion Collider (RHIC). The RXNP's design...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2011-04, Vol.636 (1), p.99-107
Main Authors: Richardson, E., Akiba, Y., Anderson, N., Bickley, A.A., Chujo, T., Cole, B.A., Esumi, S., Haggerty, J.S., Hanks, J., Hemmick, T.K., Hutchison, M., Ikeda, Y., Inaba, M., Jia, J., Lynch, D., Miake, Y., Mignerey, A.C., Niida, T., O’Brien, E., Pak, R., Shimomura, M., Stankus, P.W., Todoroki, T., Watanabe, K., Wei, R., Xie, W., Zajc, W.A., Zhang, C.
Format: Article
Language:English
Subjects:
Accelerators
ATOMIC AND MOLECULAR PHYSICS
Collisions
DESIGN
Design factors
Detectors
ELECTRONS
FIBERS
HARMONICS
HEAVY IONS
NEUTRAL PARTICLES
OPTICAL FIBERS
Paddle
Paddles
PHENIX
PHOSPHORS
Photomultiplier tubes
PHOTOMULTIPLIERS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Planes
PLASTIC SCINTILLATORS
Reaction plane
RESOLUTION
RHIC
Scintillator
Spectrometers
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Summary:A plastic scintillator paddle detector with embedded fiber light guides and photomultiplier tube readout, referred to as the Reaction Plane Detector (RXNP), was designed and installed in the PHENIX experiment prior to the 2007 run of the Relativistic Heavy Ion Collider (RHIC). The RXNP's design is optimized to accurately measure the reaction plane (RP) angle of heavy-ion collisions, where, for mid-central sNN=200GeV Au+Au collisions, it achieved a 2nd harmonic RP resolution of ∼0.75, which is a factor of ∼2 greater than PHENIX's previous capabilities. This improvement was accomplished by locating the RXNP in the central region of the PHENIX experiment, where, due to its large coverage in pseudorapidity (1.0
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2011.01.034