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SUMMARY:Can we explain AMS-02 antiproton and positron excesses simultaneou
 sly?
DTSTART;VALUE=DATE-TIME:20151027T063000Z
DTEND;VALUE=DATE-TIME:20151027T064500Z
DTSTAMP;VALUE=DATE-TIME:20260412T170351Z
UID:indico-contribution-878@indico.icrr.u-tokyo.ac.jp
DESCRIPTION:Speakers: Kazunori Kohri (KEK)\nI explain the excess of the an
 tiproton fraction recently reported by the AMS-02 experiment by\nconsideri
 ng collisions between cosmic-ray protons accelerated by a local supernova 
 remnant (SNR) and the surrounding dense cloud. The same "pp collisions" pr
 ovide the right branching fraction to fit the observed positron excess sim
 ultaneously without a fine tuning. The supernova happened in relatively lo
 wer metalicity than the majorcosmic-ray sources. The cutoff energy of elec
 trons marks the supernova age of ~10^5 years\, while the antiproton excess
  may extend to higher energy. Both antiproton and positron fluxes are comp
 letely consistent with our predictions in Fujita\, Kohri\, Yamazaki and Io
 ka (2009).\n\nhttps://indico.icrr.u-tokyo.ac.jp/event/23/contributions/878
 /
LOCATION: Room 3.4
URL:https://indico.icrr.u-tokyo.ac.jp/event/23/contributions/878/
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