phenix achievments and cc-j w.a. zajc columbia university for the phenix collaboration
DESCRIPTION
PHENIX ACHIEVMENTS AND CC-J W.A. Zajc Columbia University for the PHENIX Collaboration. The PHENIX Collaboration. A strongly international venture: 11 nations Brazil, China, France, Germany, India, Israel, Japan, South Korea, Russia, Sweden, United States 51 institutions. - PowerPoint PPT PresentationTRANSCRIPT
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PHENIX ACHIEVMENTS AND
CC-J
W.A. ZajcColumbia University
for the PHENIX Collaboration
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The PHENIX CollaborationThe PHENIX
Collaboration
A strongly international venture:11 nations
Brazil, China, France, Germany, India, Israel, Japan, South Korea, Russia, Sweden, United States
51 institutions
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Run-1 Configuration
Run-1 Configuration
Two central arms Mechanically
~complete Roughly half of
aperture instrumented Global detectors
Zero-degree Calorimeters (ZDCs)
Beam-Beam Counters (BBCs)
Multiplicity and Vertex Detector (MVD, engineering run)
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Run-1 Accomplishments
Run-1 Accomplishments
First collisions:15-Jun-00 Last collisions: 04-Sep-00 During this period:
Commissioned Zero-Degree Calorimeters Beam-Beam Counters Multiplicity and Vertex Counter Drift Chambers Pad Chambers Ring Imaging Cerenkov Counter Time Expansion Chamber Time-of-Flight Counters Electromagnetic Calorimeter Muon Identifier Minimum Bias Triggers Data Acquisition System
Recorded ~5M minimum bias events
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Run-1 ResultsRun-1 Results Global Event Features
Transverse Energy Charged Multiplicity Elliptic Flow
Identified Particles Hadrons
, K , p o’s HBT
Electrons Studied versus
Centrality Number of participants
All results are for Au-Au collisions at
GeV130sNN
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Run-1 ResultsRun-1 Results
This is a partial compilation
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Physics ImpactPhysics Impact
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CC-J Contributions
CC-J Contributions
CC-J made an essential contribution to PHENIX’s impressive Quark Matter success: ~50% of all PHENIX Quark Matter data
reconstructed at CC-J CC-J “routinely” provides 100K fully
simulated events per week These simulations were integral part of
our analysis effort for Quark Matter No CC-J
No systematic studiesReduced confidence in our results
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Other ContributionsOther Contributions
Regional analysis center Archive of DST’s Model for other efforts (e.g., French)
Tracking of technology advances Data storage High-speed, long-distance networking
Data export facility at RCF
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PersonnelPersonnel
Manager: T. Ichihara Technical Manager: Y. Watanabe Computing Scientists:
N. Hayashi S. Sawada S. Yokkaichi
Scientific Coordination H. En’yo H. Hamagaki
BNL work Y. Goto A. Taketani
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Gratifying Success
Gratifying Success
Slide presented by WAZ at RCF review of PHENIX Computing on 03-Dec-98
09-Feb-01
03-Dec-98
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This YearThis Year In Run-2, PHENIX will record a
data-set equivalent to its entire Run-1 data-set
EACH DAY
We will need 100-1000 times the CPU cycles required for Run-1
ExpectMajor heavy ion physics impactMajor spin physics impactMajor role for CC-J
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SummarySummary PHENIX has achieved its goals for
Run-1 at RHIC.
CC-J has played a very large role in the PHENIX’s Run-1 success.
PHENIX wishes to thank all whose vision and dedication have made CC-J a reality.
Special thanks to M. Ishihara