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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-4573
DTSTART:20170905T203000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T003536Z
LAST-MODIFIED:20170905T124935Z
LOCATION:5280 Chamberlin
SUMMARY:Inflationary theory and pulsar timing investigations of primor
 dial black holes and gravitational waves\, Theory Seminar (High Energy
 /Cosmology)\, Nicholas Orlofsky\, University of Wisconsin-Madison
DESCRIPTION:The LIGO detection of gravitational waves resulting from t
 he merger of black holes was an important validation of general relati
 vity. In addition\, the observed black hole merger rate may be consist
 ent with expectations for primordial black holes making up some fracti
 on of the dark matter. We ask how these primordial black holes could a
 rise through inflationary models while not conflicting with current ex
 periments. Among the approaches that work\, we investigate the opportu
 nity for corroboration through experimental probes of gravitational wa
 ves at pulsar timing arrays. We provide examples of theories that are 
 already ruled out\, theories that will soon be probed\, and theories t
 hat will not be tested in the foreseeable future.<br>
\n<br>
\nIf time
  permits\, I will also discuss separate work on WIMP dark matter carry
 ing Standard Model electroweak charge.
URL:https://www.physics.wisc.edu/events/?id=4573
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