1. U.T. Arlington High 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 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

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 array on the DØ south endcap calorimeter ICD tile and optical fibers during assembly

5. Forward Proton Detector (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

6. DØ 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 Linux farm at Swift Center

7. Physics 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

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 (PC’s running Globus toolkit)  Software development

9.  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 Responsibilities

10. 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

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 –> five universities + three national labs (see figure)  UTA is working on software tools for status monitoring (w/CSE) and benchmarking

12. Calren Esnet, Abilene, Nton Abilene ESnet, Mren UC Berkeley LBNL-NERSC ESnet NPACI, Abilene Brookhaven National Laboratory Indiana University Boston University Argonne National Laboratory US ATLAS Data Grid Testbed HPSS sites U Michigan University of Texas at Arlington University of Oklahoma

13. 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 =>