NRAO/Socorro Colloquium Series

David Saltzberg

UCLA


Searching for High energy Particles with a Balloon-Borne Radio-Interferometer 120,000 feet above Antarctica


The ANITA (ANtarctic Impulsive Transient Antenna) experiment is a balloon-borne radio telescope and interferometer, designed to detect radio-Cherenkov emission from cosmic neutrinos with energies of exa-electron-volts. Such neutrino events would also allow probing the weak interaction at energy scales beyond the reach of the Large Hadron Collider. Because neutrinos are so penetrating, they offer the possibility to explore the entire high-energy universe without the usual local distance cutoff suffered by photons and protons. The ANITA-II experiment completed its flight in January 2009 after collecting data for 30 days. Our new data set allows the most sensitive investigation to date of neutrino flux models, which offers the possibility of revealing the sources of the highest energy cosmic rays. I will present the newly released results of the ANITA-II neutrino search. I will also discuss an unanticipated sample of the highest energy cosmic rays found by ANITA-I.






October 1, 2010
11:00 am

Array Operations Center Auditorium

All NRAO employees are invited to attend via video, available in Charlottesville Room 230, Green Bank Room 137 and Tucson N525.

Local Host: Dave Meier