U.T. Arlington
High Energy Physics Research
Summary of Activities
August 1, 2001
Introduction
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Experimental particle physics research at UTA started
in 1991
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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
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External grants:
 ~ $800k/year in 1998-99, 1999-00
 > $4M total
DØ 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 (ICD)
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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 and optical fibers
during assembly
ICD tile array on the DØ
south endcap calorimeter
Forward Proton Detector (FPD)
This new detector measures the momenta of scattered protons & anti-protons
to study “hard diffractive” physics processes
Schematic of the
detector layout
Roman Pot installed in the
Tevatron tunnel
DØ Monte Carlo Farm
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UTA system:
 24 dual processor Linux PC’s
 256 MB RAM/cpu
 0.61 TB disk storage
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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 Linux
farm at Swift Center
Physics Analysis
D0 Run I:
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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:
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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)
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Intermediate Tile Calorimeter (ITC):
(Kaushik De: Level 3 manager, project leader)
 Module construction (Swift Center)
 PMT test bench
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Grid computing testbed:
 Linux cluster (PC’s running Globus toolkit)
 Software development
ITC Responsibilities
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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
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Michigan State University
 Provide scintillators and fibers, assemble and test
cryostat scintillators, installation at CERN
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Argonne National Laboratory
 Provide steel plates
 Assemble completed modules and install optics
ITC 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 Grid
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Computing “grids” are envisioned as the next
revolution in the development of the internet
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Atlas will employ a grid architecture to facilitate data
access for collaborators spread around the world
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The U.S. testbed has deployed a prototype grid –>
five universities + three national labs (see figure)
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UTA is working on software tools for status monitoring
(w/CSE) and benchmarking
US ATLAS Data Grid Testbed
U Michigan
UC Berkeley
LBNL-NERSC
ESnet,
Mren
Boston
University
NPACI,
Abilene
Argonne
National
Laboratory
Calren Esnet,
Abilene, Nton
ESnet
University of
Oklahoma
Abilene
Indiana
University
HPSS sites
University of
Texas at
Arlington
Brookhaven
National
Laboratory
Grid Computing (cont.)
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UTA has developed ‘GridView’ to monitor the
gatekeeper machine at each testbed site:
UTA
Gatekeeper =>
Screenshot from http://heppc1.uta.edu/kaushik/computing/grid-status/index.html