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PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Search for Astrophysical Tau Neutrinos in IceCube
DTSTART:20170509T213000Z
DTEND:20170509T214500Z
DTSTAMP:20260807T114800Z
UID:indico-contribution-5217@events.icecube.wisc.edu
DESCRIPTION:Speakers: Donglian Xu (University of Wisconsin-Madison)\, Loga
 n Wille (o=uwmad\,ou=Institutions\,dc=icecube\,dc=wisc\,dc=edu)\n\nThe Ice
 Cube Neutrino Observatory has observed a diffuse astrophysical neutrino fl
 ux\, consistent with equal mixture of neutrino flavors. Regardless of the 
 production mechanism at the source\, an appreciable amount of tau neutrino
 s is expected via mixing over astronomical distances. Identification of ta
 u neutrinos is essential for the precise measurement of the astrophysical 
 neutrino flavor content\, which in turn helps test neutrino oscillation pa
 radigms over extremely long baselines and possibly shed light on new physi
 cs beyond the Standard Model. A tau neutrino undergoing charged current in
 teraction in IceCube will produce two subsequent energy losses: one from t
 he neutrino-hadron interaction\, and the other from the decay of the secon
 dary tau lepton. Such double depositions of energy can appear as a causall
 y connected "double bang" topology for high neutrino energies (>PeV) or as
  double pulses in the waveforms of photon sensors at lower neutrino energi
 es (>100 TeV). I will present a recent search for astrophysical tau neutri
 nos creating double pulses using three years of IceCube data\, and overvie
 w the ongoing effort to improve the double pulse waveform identification t
 echniques for future analyses.\n\nhttps://events.icecube.wisc.edu/event/82
 /contributions/5217/
LOCATION:Orchard View (Discovery Building)
RELATED-TO:indico-event-82@events.icecube.wisc.edu
URL:https://events.icecube.wisc.edu/event/82/contributions/5217/
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