High Energy Physics at UTA UTA faculty Andrew Brandt, Kaushik De, Andrew White, Jae Yu along with many post-docs, graduate and undergraduate students investigate the basic forces of nature through particle physics studies at the world’s highest energy accelerators In the background is a photo of a sub-detector of the 5000 ton DØ detector. This sub-detector was designed and built at UTA and is currently operating at Fermi National Accelerator Laboratory near Chicago.

Structure of Matter cm Matter m Molecule m m AtomNucleus Atomic Physics Nuclear Physics High energy means small distances Nano-Science/Chemistry m u < m QuarkBaryon Electron < m protons, neutrons, mesons, etc.  top, bottom, charm, strange, up, down High Energy Physics (Hadron) (Lepton)

Why High Energy Physics At UTA?? YOU can perform fundamental research using world’s highest energy particle accelerators: UTA’s four HEP faculty, many grad students and post-docs are part of collaborations at Fermilab, CERN, and Brookhaven, investigating the Origin of Mass (Higgs Searches), Supersymmetry, Extra-dimensions, QCD and Forward Physics. YOU can build state-of-the-art detectors: UTA’s Swift Center Detector Laboratory is a fully equipped 10,000 sq ft construction facility; in 2005 these facilities will be incorporated in the brand new Science Building. YOU can develop “The GRID”, the next step beyond the Internet: UTA faculty leading international efforts in this area, we have a large high performance computing farm, and a GRID test-bed. (Visit us at UTA Science Hall or

Building Detectors at UTA

High Performance Computing 100 P4 Xeon 2.6GHz CPU = 260 GHz 64TB of IDE RAID + 4TB internal NFS File system 84 P4 Xeon 2.4GHz CPU = 202 GHz 5TB of FBC + 3.2TB IDE Internal GFS File system Total CPU: 462 GHz Total disk: 76.2TB Total Memory: 168Gbyte Network bandwidth: 68Gb/sec Joint facility for high energy physics and computer science research UTA just received a major NSF grant ($3M) to become a Tier 2 Computing center on the ATLAS experiment. Chicago+Harvard were also selected, while Michigan, Duke, and LBL were not.

Forward Proton Detector (FPD) Quadrupole Spectrometers surround the beam: up, down, in, out use quadrupole magnets (focus beam) - a series of momentum spectrometers that make use of accelerator magnets in conjunction with position detectors along the beam line Dipole Spectrometer inside the beam ring in the horizontal plane use dipole magnet (bends beam) also shown here: separators (bring beams together for collisions) A total of 9 spectrometers comprised of 18 Roman Pots

Detector Construction At the University of Texas, Arlington (UTA), scintillating and optical fibers were spliced and inserted into the detector frames. The cartridge bottom containing the detector is installed in the Roman pot and then the cartridge top with PMT’s is attached.

One of the DØ Forward Proton Detectors built at UTA and installed in the Tevatron tunnel Tevatron: World’s Highest Energy Collider Fermilab DØDØ High-tech fan

The CERN Large Hadron Collider Location of LHC in France and Switzerland, with lake Geneva and the Alps in the background The ATLAS detector is currently being built at UTA and at 100's of other institutions all over the world Proton-proton collisions at 14 TeV

R&D project to add forward proton detectors “near” ATLAS for Higgs/NP search Like a linear collider, in that you measure full event, can determine CP quantum numbers Working on developing mechanics with Helsinki group FP420

n=1n>>1 Cerenkov Effect Use this property of prompt radiation to develop a fast timing counter particle

Preliminary UTA conceptual drawing for a fast time resolution Cerenkov counter: proton Microchannel plate PMT Initial design uses 2 mm 2 rods, gives x segmentation: could help with multiple proton events (enough light?) QUARTIC Summary of Sep Quartz Timing Cerenkov Meeting A. Brandt/M. Albrow Goal:10psec resolution!

Conclusions Many Opportunities for state-of-art research with one of the top HEP groups in the country/world! Tune in next week for more from White/Yu/De