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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-2979
DTSTART:20130430T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260315T233628Z
LAST-MODIFIED:20130429T034954Z
LOCATION:5280 Chamberlin Hall
SUMMARY:Double Disk Dark Matter\, Theory Seminar (High Energy/Cosmolog
 y)\, Andrey Katz\, Harvard University
DESCRIPTION:We consider a scenario that we call Partially Interacting 
 Dark Matter (PIDM). This scenario contains self-interacting dark matte
 r\, but it is not the dominant Dark Matter component. Even if PIDM con
 tains only a fraction of the net dark matter density\, comparable to t
 he baryonic fraction\, the subdominant componentaEuroTMs interactions 
 can lead to interesting and potentially observable consequences. Our p
 rimary focus will be the special case of Double-Disk Dark Matter (DDDM
 )\, in which self-interactions allow the dark matter to lose enough en
 ergy to lead to dynamics similar to those in the baryonic sector. We e
 xplore a simple model in which DDDM can cool einotfciently and form a 
 disk within galaxies\, and we evaluate some of the possible observatio
 nal signatures. The most prominent signal of such a scenario could be 
 an enhanced indirect detection signature with a distinctive spatial di
 stribution. Such scenarios also predict additional dark radiation degr
 ees of freedom that could soon be detectable and would ininot\,uence t
 he interpretation of future data\, such as that from Planck and from t
 he Gaia satellite.
URL:https://www.physics.wisc.edu/events/?id=2979
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