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UID:UW-Physics-Event-4223
DTSTART:20160825T193000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T113619Z
LAST-MODIFIED:20160817T221854Z
LOCATION:5280 Chamberlin hall
SUMMARY:High-energy astrophysical neutrinos: testing ground for new ph
 ysics\, NPAC (Nuclear/Particle/Astro/Cosmo) Forum\, Mauricio Bustamant
 e\, Center for Cosmology and AstroParticle Physics (CCAPP)\, The Ohio 
 State University
DESCRIPTION:High-energy astrophysical neutrinos\, recently discovered 
 by IceCube\, are fertile ground to test for the presence of new physic
 s.  We can look for it at previously unexplored energies -- from tens 
 of TeV to a few PeV\, far beyond the reach of laboratory experiments. 
  Due to cosmological-scale baselines -- Mpc to Gpc -- tiny new-physics
  effects\, otherwise unobservable\, could\, by accumulation\, become d
 etectable.  These include neutrino decay\, violation of fundamental sy
 mmetries\, and novel neutrino-neutrino interactions.  I will show that
  the spectral features and flavor composition of neutrinos can reveal 
 the presence and type of new physics.  I will give special attention t
 o neutrino decay. Present-day data are already sensitive to some model
 s.  More statistics\, improvements in detection techniques\, and detec
 tor upgrades will only enhance the sensitivity.
URL:https://www.physics.wisc.edu/events/?id=4223
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