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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-1640
DTSTART:20100416T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T193851Z
LAST-MODIFIED:20100406T144751Z
LOCATION:2241 Chamberlin Hall (coffee at 3:30 pm)
SUMMARY:Dark Matter in the Universe\, Physics Department Colloquium\, 
 Katherine Freese\, University of Michigan
DESCRIPTION:One of the biggest unanswered questions in science is <br>
 
\n"What is the Universe made of?" Only 4% of the Universe consists of
  ordinary atomic matter\; the remaining 96% is made of Dark Matter and
  Dark Energy whose nature is as yet unknown. This talk will examine th
 e dark matter that<br>
\ncomprises most of the mass of the Milky Way a
 nd all other galaxies. I will review the observational evidence for th
 e existence of dark matter\, and then turn to the hunt for the dark ma
 tter particle. A great deal of excitement currently pervades this fiel
 d because of current and upcoming experiments that can find the dark m
 atter\, via both direct and indirect techniques. The best motivated da
 rk matter candidates are Weakly Interacting Massive Particles such as 
 those motivated by supersymmetry or extra dimensions. These particles 
 have been powerful motivation for the Large Hadron Collider at CERN\, 
 underground experiments (e.g\; XENON\, CDMS)\, satellites such as GLAS
 T or PAMELA\, and neutrino detectors such as ICECUBE/DEEPCORE at the S
 outh Pole. The discovery of the dark matter particle will be an exciti
 ng milestone for particle physics\, astrophysics\, and for everyone in
 terested in understanding the nature of our Universe.
URL:https://www.physics.wisc.edu/events/?id=1640
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