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SUMMARY:Dark Matter scenarios at IceCube
DTSTART;VALUE=DATE-TIME:20160129T110000Z
DTEND;VALUE=DATE-TIME:20160129T120000Z
DTSTAMP;VALUE=DATE-TIME:20260919T172843Z
UID:indico-event-2672@indico.ific.uv.es
DESCRIPTION:IceCube evidence for extraterrestrial neutrinos poses the intr
 iguing\n\npuzzle concerning their origin. The strange features of the meas
 ured flux\ncould favor a top-down explanation instead of a more standard\n
 astrophysical one. The PeV neutrinos could be indeed orginated\nby the dec
 ay of very heavy Dark Matter particles. In particular\,\nwe consider a lep
 tophyllic four body interaction term\nthat has the characteristics to be "
 natural" in the coupling (no\nfine tuning required)\, and defined by a sma
 ll number of free parameters.\nMoreover\, the latest IceCube data show a 2
 -sigma excess at low energy\n(60 - 100 TeV) with respect to an astrosphysi
 cal power-law with spectral\nindex -2. By means of a statistical analysis 
 on the angular distribution\nof the arrival directions\,we show that only 
 the scenario of\nannihilitating Dark Matter is already excluded by IceCube
  data.\n\nhttps://indico.ific.uv.es/event/2672/
LOCATION:IFIC Nave Exp. Sala de Audiovisuales
URL:https://indico.ific.uv.es/event/2672/
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