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The SLAC T-530 Askaryan Calorimeter Experiment -- ACE

Abstract: The Askaryan effect -- coherent impulsive radio and microwave emission from excess charge in high-energy particle showers -- was confirmed first in 2001 at SLAC, and delineated in a number of SLAC experiments since. It has become the basis for a number of particle astrophysics experiments to detect ultra-high energy neutrinos using large natural dielectrics such as polar ice. The radio emission from this process tracks the shower energy closely over a very large dynamic range, suggesting a possible application in shower calorimetry, especially at the extreme energies on the far horizon for future high energy physics colliders. The ACE experiment seeks to pin down the threshold energy and timing capability of a calorimetric detector element, and we will describe the design and plans for ACE and its possible applications.
Speaker: Peter Gorham - University of Hawaii
Speaker Bio: Peter Gorham has been a professor of physics at the University of Hawaii at Manoa since 2001, the same year he collaborated with David Saltzberg to confirm the Askaryan effect at SLAC. Since then his research focus has been in radio detection of high energy particles. This focus has led to the Antarctic Impulsive Transient Antenna (ANITA) experiment, a NASA long-duration balloon payload which has flown in Antarctica for 4 flights since 2005, and which has set some of the best world limits on ultra-high energy neutrino fluxes. In addition, ANITA has made the first measurement of the ultra-high energy cosmic ray spectrum via radio detection. Prof. Gorham lives in Honolulu with his wife and two teenage kids, and enjoys surfing and sailboat racing in his spare time.
Poster Link: Poster
Presentation: Presentation on 8/5/2015 (PDF)