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U.T. ArlingtonU.T. ArlingtonHigh Energy Physics High Energy Physics
ResearchResearch
U.T. ArlingtonU.T. ArlingtonHigh Energy Physics High Energy Physics
ResearchResearch
Summary of ActivitiesAugust 1, 2001
IntroductionIntroduction Experimental particle physics research at UTA
started in 1991 Professor Andrew White (hired 1991) Assoc. Professor Kaushik De (1993) Asst. Professor Andrew Brandt (1999) Asst. Professor Jae Yu (2001)
10,000 sq. ft. Swift Center detector lab – renovation funded by NSF+UTA
Research opportunities for students at world-class facilities: graduate: 8 (physics), 9 (engineering) undergraduate: 5
External grants: ~ $800k/year in 1998-99, 1999-00 > $4M total
DDØØ Experiment (Fermilab) Experiment (Fermilab)DDØØ Experiment (Fermilab) Experiment (Fermilab)
Intercryostat Detector (ICD)(Andrew White: Level 3 manager, project leader)
Forward Proton Detector (FPD)(Andrew Brandt: Level 3 manager, co-project leader)
PC/Linux Simulation “Farm”
Intercryostat Detector Intercryostat Detector (ICD)(ICD)
Intercryostat Detector Intercryostat Detector (ICD)(ICD)
The ICD enhances energy measurements in the DØ calorimeter 1998-2001: the detector was substantially redesigned for Run
II of the Tevatron (to function in the new magnetic field environment)
Detector is installed – commissioning studies underway
ICD tile array on the DØ south endcap calorimeter
ICD tile and optical fibersduring assembly
Forward Proton Detector Forward Proton Detector (FPD)(FPD)
Forward Proton Detector Forward Proton Detector (FPD)(FPD)
Schematic of the detector layout
Roman Pot installed in the Tevatron tunnel
This new detector measures the momenta of scattered protons & anti-protons to study “hard diffractive” physics processes
DDØØ Monte Carlo Farm Monte Carlo FarmDDØØ Monte Carlo Farm Monte Carlo Farm
UTA system: 24 dual processor Linux
PC’s 256 MB RAM/cpu 0.61 TB disk storage
Execution/monitoring software: Python language
UTA farm operates at the highest efficiency compared to all other production sites
To date (8/01/01) >3 million events generated
Second farm in CSE recently added
The UTA PC Linuxfarm at Swift Center
Physics AnalysisPhysics AnalysisPhysics AnalysisPhysics Analysis
D0 Run I: Contributed to many areas (hardware,
software, simulated data) directly supporting the publication of > 100 refereed papers – particular emphasis on new particle searches, tests of the strong nuclear force (QCD)
D0 Run II: Use the capabilities of the upgraded
detector to extend the reach of Run I analyses (new particles, QCD) – new topics include searches for the Higgs particle
Atlas Experiment (CERN)Atlas Experiment (CERN)Atlas Experiment (CERN)Atlas Experiment (CERN)
Intermediate Tile Calorimeter (ITC):(Kaushik De: Level 3 manager, project leader)
Module construction (Swift Center) PMT test bench
Grid computing testbed: Linux cluster (PC’s running Globus toolkit) Software development
University of Texas at Arlington Construct detector modules, assemble and
test scintillator extension, test phototubes, final module assembly and instrumentation work at ANL, installation at CERN
Michigan State University Provide scintillators and fibers, assemble and
test cryostat scintillators, installation at CERN Argonne National Laboratory
Provide steel plates Assemble completed modules and install
optics
ITC ResponsibilitiesITC ResponsibilitiesITC ResponsibilitiesITC Responsibilities
ITC SubmodulesITC SubmodulesITC SubmodulesITC Submodules
Completed modules are delivered to ANL and Barcelona for inclusion in the full module
assemblies:
Swift Center UTA module installed in full assembly at Argonne National Lab
Atlas Computing GridAtlas Computing Grid Atlas Computing GridAtlas Computing Grid
Computing “grids” are envisioned as the next revolution in the development of the internet
Atlas will employ a grid architecture to facilitate data access for collaborators spread around the world
The U.S. testbed has deployed a prototype grid –> five universities + three national labs (see figure)
UTA is working on software tools for status monitoring (w/CSE) and benchmarking
Calren Esnet, Abilene, Nton
Abilene
ESnet, Mren
UC BerkeleyLBNL-NERSC
ESnet
NPACI, Abilene
BrookhavenNationalLaboratory
Indiana University
Boston University
ArgonneNationalLaboratory
US ATLAS Data Grid Testbed
HPSS sites
U Michigan
University ofUniversity ofTexas atTexas atArlingtonArlington
University of Oklahoma
Grid Computing (cont.)Grid Computing (cont.)Grid Computing (cont.)Grid Computing (cont.)
UTA has developed ‘GridView’ to monitor the gatekeeper machine at each testbed site:
Screenshot from http://heppc1.uta.edu/kaushik/computing/grid-status/index.html
UTA Gatekeeper =>