BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-1847
DTSTART:20100421T190000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T193959Z
LAST-MODIFIED:20100415T190917Z
LOCATION:4274 Chamberlin Hall
SUMMARY:A search for ultrahigh energy neutrinos in the ANITA experimen
 t\, NPAC (Nuclear/Particle/Astro/Cosmo) Forum\, Dr. Brian Mercurio\, T
 he Ohio State University
DESCRIPTION:Cosmic rays with energy greater than about 10<sup>20</sup>
  eV are
\nexpected to lose energy through interactions with the cosmic
  microwave background in what is known as the GZK process. Although th
 e GZK process makes the universe opaque to the highest energy cosmic r
 ays\, it also results in the production of neutrinos that can travel n
 early unattenuated from even the farthest galaxies. Because neutrinos 
 have no electric
\ncharge\, their direction of travel is not affected 
 by intergalactic
\nmagnetic fields and they can point back to their so
 urces. The Antarctic Impulsive Transient Antenna (ANITA) experiment is
  designed to detect GZK neutrinos with energy greater than 10<sup>18</
 sup> eV. Antennas hanging from a balloon 35 km over Antarctica search 
 for radio signals from neutrino-induced particle showers in the ice. A
 NITA did not discover neutrinos in this energy range\, and it set a ne
 w upper limit on the neutrino flux above 10<sup>19</sup> eV. The 2006-
 2007 flight also detected 16 signals that were consistent with radio e
 mission from air
\nshowers above the ice. 
URL:https://www.physics.wisc.edu/events/?id=1847
END:VEVENT
END:VCALENDAR