A Complete Onium Program with R2D at RHIC II

Journal Article · Tue Jul 11 04:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2220194· OSTI ID:20875835

Witt, Richard ^[1]

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1. Yale University, Wright Nuclear Structure Laboratory, 272 Whitney Ave., New Haven, CT 06520 (United States)

Following on the discovery of a strongly interacting quark-gluon plasma (QGP) at RHIC, a program of detailed quarkonia measurements is crucial to understanding the nature of deconfinement. Lattice QCD calculations suggest a sequential melting of the quarkonia states in the deconfined medium. Such a melting would lead to a suppression in the measured charmonium and bottomonium yields. However, distinguishing a true suppression from shadowing, absorption, and recombination effects requires detailed measurements of the charmonium states (J/{psi}, {psi}', and {chi}c) and bottomonium states ({upsilon}(1S), {upsilon}(2S), and {upsilon}(3S)). Also, since measurements are needed not only in A+A, but also in p+p for determining primary yields and in p+A for evaluating absorption, the detector should perform well in all collision environments. To fully realize the program outlined above, a new detector will be required at RHIC-II. We present a proposal for a complete quarkonia program and the abilities of a new detector, R2D, to meet the stated requirements. Comparisons will be made with proposed upgrades to existing RHIC detectors and with the upcoming LHC program.

• OSTI ID: 20875835
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 842; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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CHI0-3415 MESONS
COMPARATIVE EVALUATIONS
HEAVY ION REACTIONS
J PSI-3097 MESONS
LATTICE FIELD THEORY
MULTIPARTICLE SPECTROMETERS
NUCLEAR REACTION YIELD
PARTICLE IDENTIFICATION
QUANTUM CHROMODYNAMICS
QUARK MATTER
RECOMBINATION
RESONANCE PARTICLES
UPSILON-10023 MESONS
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