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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-1623
DTSTART:20091020T170500Z
DURATION:PT1H0M0S
DTSTAMP:20260422T032205Z
LAST-MODIFIED:20090908T152440Z
LOCATION:4274 Chamberlin (Refreshments will be served)
SUMMARY:High-Energy neutrino astronomy: Towards a kilometer-scale neut
 rino observatory.\, Chaos & Complex Systems Seminar\, Francis Halzen\,
  UW Department of Physics
DESCRIPTION:Kilometer-scale neutrino detectors such as IceCube are dis
 covery instruments covering nuclear and particle physics\, cosmology a
 nd astronomy. Examples of their multidisciplinary missions include the
  search for the particle nature of dark matter and for additional smal
 l dimensions of space. In the end\, their conceptual design is very mu
 ch anchored to the observational fact that Nature produces photons and
  protons with energies in excess of one hundred and one hundred millio
 n Terraelectronvolts\, respectively. The cosmic ray connection sets th
 e scale of cosmic neutrino fluxes. The problem has been to develop a r
 obust and affordable technology to build the kilometer-scale neutrino 
 detectors required to detect candidate sources such as supernova remna
 nts and active galxies. The AMANDA telescope transforming ultra-clear 
 deep Antarctic ice into a Cherenkov detector of muons and showers init
 iated by neutrinos of all three flavors\, has met this challenge. Havi
 ng collected more than 6000 well-reconstructed muon neutrinos of 50 Ge
 V ~ 500 TeV energy\, AMANDA represented a proof of concept for the ult
 imate kilometer-scale neutrino observatory\, IceCube\, now almost comp
 lete and producing results exceeding seven years of AMANDA data in sen
 sitivity.
URL:https://www.physics.wisc.edu/events/?id=1623
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