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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:1
UID:UW-Physics-Event-6932
DTSTART:20220426T190000Z
DURATION:PT1H0M0S
DTSTAMP:20260414T152809Z
LAST-MODIFIED:20220420T173037Z
LOCATION:B343 Sterling
SUMMARY:Hunting for cosmic neutrino sources from Giga- to Exa-electron
 volt with IceCube\, Thesis Defense\, Alex Pizzuto\, Physics PhD Gradua
 te Student
DESCRIPTION:Ever since the first observation of cosmic rays over a cen
 tury ago\, the origins of these high-energy particles has remained a m
 ystery. Identifying and understanding the sources of these cosmic rays
  could provide invaluable insight into not only astrophysics but also 
 fundamental particle physics. The IceCube Neutrino Observatory\, a cub
 ic-kilometer neutrino telescope instrumented at the geographic South P
 ole\, has made remarkable progress on this front -- first with the det
 ection of a diffuse astrophysical neutrino flux in 2013\, and later wi
 th the identification of a particular flaring blazar as a promising ne
 utrino source. However\, the sources of the vast majority of the diffu
 se neutrino flux remain unidentified. The goal of this thesis is to id
 entify astrophysical neutrino sources despite our limited detection th
 reshold. We show how analyzing neutrino data with new techniques can r
 eveal an immense deal about the nature of the universe's most energeti
 c particle accelerators. After providing a description of the state of
  the field and a quick overview of the general analysis techniques use
 d\, we present a variety of analyses focused on searching for neutrino
  emission from promising classes of astrophysical transients. Although
  all of these analyses resulted in non-detections\, we are hopeful tha
 t the tools presented here will assist with the identification of cosm
 ic neutrino sources in the years to come.
URL:https://www.physics.wisc.edu/events/?id=6932
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