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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:1
UID:UW-Physics-Event-5362
DTSTART:20200220T200000Z
DURATION:PT1H0M0S
DTSTAMP:20260312T010118Z
LAST-MODIFIED:20200213T182743Z
LOCATION:4274 Chamberlin Hall
SUMMARY:The TeV-PeV Diffuse Neutrino Background\, NPAC (Nuclear/Partic
 le/Astro/Cosmo) Forum\, Nathan Whitehorn\, UCLA
DESCRIPTION:In 2014\, the IceCube Neutrino Observatory announced the d
 iscovery of an
\nisotropic\, isoflavor diffuse background of neutrinos
  with energies
\nextending from 10 TeV to well above 1 PeV\, presumabl
 y associated with
\nthe unknown emitters of high-energy cosmic rays. S
 ix years later\, the
\norigin of these neutrinos remains a mystery. Th
 e background is\, within
\nmeasurement uncertainties\, uncorrelated wi
 th any of the standard catalog
\nof high-energy sources (our galaxy\, 
 blazars\, gamma-ray bursts\, etc.)\,
\nchallenging explanations involv
 ing simple models. The 2017 detection of
\nneutrino emission from the 
 distant blazar TXS 0506+056 has only deepened this mystery. In this ta
 lk\, I will discuss the current state of our
\nknowledge of the high-e
 nergy neutrino sky and outline the next steps in
\nthe experimental pr
 ogram to resolve these questions.
URL:https://www.physics.wisc.edu/events/?id=5362
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