Argonne National Laboratory has contributed extensively to the design and prototyping of the Tile Calorimeter system in the
ATLAS detector in the Large Hadron Collider at CERN. Fabrication of the calorimeter modules in the US is complete. Current
work involves installation and testing of TileCal in the ATLAS underground hall. Argonne has also had leading role in the
test beam work for Tilecal. Argonne is collaborating with University of Chicago, University of Illinois, Michigan State University,
and the University of Texas at Arlington on US work for the Tile Calorimeter. In addition, Argonne and Michigan State University
have taken responsibility for the Level 2 Supervisor and Region-of-Interest Builder components of the Level 2 trigger.
Argonne is working actively on ATLAS Computing in three ways. Argonne is the central US site for work on database and data
management. Second, Argonne is a founding member of PPDG and
GriPhyN data grid projects which are of central importance to ATLAS. Finally, Argonne is involved in the Tilecal Computing
group, with a focus on database and reconstruction tasks.
Argonne has begun building a program of nuclear and particle astrophysics and cosmology research. Argonne physicists are
part of the VERITAS Gamma Ray Telescope collaboration which observes very high energy gamma rays produced in supernovae
shock remnants, from high energy particle jets ejected from matter being accreted into supermassive black holes at the
center of distance active galaxies, and possibly from the annihilation of dark matter particles from our galactic center
and from nearby galaxies. Argonne is also part of the Dark Energy Survey which seeks to be understand the nature of Dark
Energy through measurment of the rate of cosmic expansion over the history of our universe.
ANL also works in experimental particle physics in several addtional projects:
- CDF experiment at Fermilab
- ZEUS experiment at HERA (DESY)
- International Linear Collider Detector R&D
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Christian Rudolph