Bulletin of the American Physical Society
2008 APS April Meeting and HEDP/HEDLA Meeting
Volume 53, Number 5
Friday–Tuesday, April 11–15, 2008; St. Louis, Missouri
Session E2: Prize Winners |
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Sponsoring Units: DPF Chair: Natalie Roe, Lawrence Berkeley National Laboratory Room: Hyatt Regency St. Louis Riverfront (formerly Adam's Mark Hotel), St. Louis D |
Saturday, April 12, 2008 3:30PM - 4:06PM |
E2.00001: W.K.H. Panofsky Prize Talk: The Utah Fly's Eye Detector Invited Speaker: In 1963, John Linsley detected a 100 EeV extensive air shower (EAS) at Volcano Ranch, New Mexico. Greisen, Kuzmin and Zatsepin realized that the existence of cosmic rays exceeding 60 EeV (UHCR) was surprising since inverse photoproduction off the 3 K CMB should severely degrade their intensity, now called the GKZ cutoff. Greisen suggested that UHCR should generate enough air fluorescence light that they might be detected within an area exceeding 1000 km$^{ 2}$. The Utah group proposed such a detector, the Fly's Eye, which could realize Greisen's suggestion and detect UHCR at a greater rate than had been achieved by more conventional means. The expectation was to identify the primary particles and demonstrate that if they existed in significant number then the sources must be ``local,'' consistent with the prediction of GKZ. The detection of UHCR with a prototype Fly's Eye detector was carried out in coincidence with Linsley's Volcano Ranch array. Subsequently, the Utah group built two all sky detectors, Fly's Eye I and II, which operated together for many years in the remote western Utah desert. The design, construction and operational characteristics of the detector and some of its results will be presented in the talk. [Preview Abstract] |
Saturday, April 12, 2008 4:06PM - 4:42PM |
E2.00002: Panofsky Prize Talk: The High Resolution Fly's Eye (HiRes) Experiment Invited Speaker: The High Resolution Fly's Eye (HiRes) experiment was the second-generation air fluorescence experiment proposed, built, and run by the HiRes collaboration, with members from the University of Utah, Columbia University, the University of Illinois, the University of New Mexico, Rutgers University, the University of Tokyo and the Los Alamos National Laboratory. I will report on the history of the project, the technical capabilities of the instrument built in the Utah desert and the physics results, culminating in the discovery of the Greisen-Zatsepin-Kuzmin cut-off. The HiRes experiment also pioneered many of the calibration and atmospheric monitoring techniques now in use by the Pierre Auger experiment and the Telescope Array experiment and I will describe a number of them in my talk. [Preview Abstract] |
Saturday, April 12, 2008 4:42PM - 5:18PM |
E2.00003: Mitsuyoshi Tanaka Dissertation Award in Experimental Particle Physics Talk Invited Speaker: |
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