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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-1323
DTSTART:20090403T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260313T231511Z
LAST-MODIFIED:20090330T163636Z
LOCATION:2241 Chamberlin Hall (coffee at 3:30 pm)
SUMMARY:Neutrinos\, and the Dark Side of the Light Fermions\, Physics 
 Department Colloquium\, Alex Kusenko\, UCLA
DESCRIPTION:The past decade has been marked by some remarkable discove
 ries in the neutrino physics: the particles once believed to be massle
 ss have turned out to be massive and have shown evidence of lepton fam
 ily number violation\, as well as other interesting phenomena. While t
 his is exciting\, the future may hold even more dramatic discoveries\,
  the hints for which begin to appear in astrophysics and cosmology. Th
 e observed neutrino masses imply the existence of some yet undiscovere
 d "right-handed" states\, which can be very massive and unreachable\, 
 but which can also be light enough to constitute the cosmological dark
  matter and to account for a number of astrophysical phenomena\, from 
 supernova asymmetries and the pulsar kicks to the peculiarities in the
  reionization and formation of the first stars. I will review the rece
 nt progress in neutrino physics\, as well as the clues that may lead t
 o future discoveries.
URL:https://www.physics.wisc.edu/events/?id=1323
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