U.T. Arlington High Energy Physics Research

1
U.T. ArlingtonHigh Energy Physics Research

• Summary of Activities
• August 1, 2001

2
Introduction

• 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 NSFUTA
• Research opportunities for students at
  world-class facilities
• graduate 8 (physics), 9 (engineering)
• undergraduate 5
• External grants
• 800k/year in 1998-99, 1999-00
• gt 4M total

3
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

4
Intercryostat Detector (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 and optical fibers during assembly
ICD tile array on the DØ south endcap
calorimeter
5
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
6
DØ Monte Carlo Farm

• UTA system
• 24 dual processor Linux PCs
• 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) gt3 million events generated
• Second farm in CSE recently added

The UTA PC Linux farm at Swift Center
7
Physics Analysis

• D0 Run I
• Contributed to many areas (hardware, software,
  simulated data) directly supporting the
  publication of gt 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

8
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 (PCs running Globus toolkit)
• Software development

9
ITC Responsibilities

• 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

10
ITC Submodules
Completed modules are delivered to ANL and
Barcelona for inclusion in the full module
assemblies
UTA module installed in full assembly at Argonne
National Lab
Swift Center
11
Atlas 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 gt
  five universities three national labs (see
  figure)
• UTA is working on software tools for status
  monitoring (w/CSE) and benchmarking

12
US ATLAS Data Grid Testbed
U Michigan
Boston University
UC Berkeley LBNL-NERSC
Argonne National Laboratory
Brookhaven National Laboratory
University of Oklahoma
Indiana University
University of Texas at Arlington
HPSS sites
13
Grid Computing (cont.)

• UTA has developed GridView to monitor the
  gatekeeper machine at each testbed site

UTA Gatekeeper gt
Screenshot from http//heppc1.uta.edu/kaushik/com
puting/grid-status/index.html