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SUMMARY:Neutrino Flavor Ratios Modified by Cosmic Ray Secondary-accelerati
 on
DTSTART;VALUE=DATE-TIME:20151029T084000Z
DTEND;VALUE=DATE-TIME:20151029T085500Z
DTSTAMP;VALUE=DATE-TIME:20260412T062338Z
UID:indico-contribution-900@indico.icrr.u-tokyo.ac.jp
DESCRIPTION:Speakers: Norita Kawanaka (The University of Tokyo)\nAccelerat
 ion of 's and 's modies the flavor ratio at Earth (at astrophysical source
 s) of\nneutrinos produced by pion decay\, nu_e :  nu_mu : nu_tau \, from 1
  : 1 : 1 (1 : 2 : 0) to 1 : 1:8 : 1:8 (0 : 1 : 0) at high energy\, because
  pions decay more than muons during secondary-acceleration. The neutrino s
 pectrum accompanies a flat excess\, differently from the case of energy lo
 sses. With the flavor spectra\, we can probe timescales of cosmic-ray acce
 leration and shock dynamics. We obtain general solutions of convection-dif
 fusion equations and apply to gamma-ray bursts\, which may have the flavor
  modication at around PeV - EeV detectable by IceCube and next-generation 
 experiments.\n\nhttps://indico.icrr.u-tokyo.ac.jp/event/23/contributions/9
 00/
LOCATION: Room 3.4
URL:https://indico.icrr.u-tokyo.ac.jp/event/23/contributions/900/
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