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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:3
UID:UW-Physics-Event-8153
DTSTART:20230322T180000Z
DTEND:20230322T193000Z
DTSTAMP:20260414T051301Z
LAST-MODIFIED:20230320T211357Z
LOCATION:Chamberlin 5280
SUMMARY:Molecules For Dark Matter Detection\, Theory Seminar (High Ene
 rgy/Cosmology)\, Benjamin Lillard\, U. of Oregon
DESCRIPTION:Organic scintillators are a promising avenue for the direc
 t detection of sub-GeV dark matter (DM). With eV-scale excitation ener
 gies that rival the sensitivity of semiconductor targets\, they can be
  produced in bulk and purified relatively inexpensively. A low-backgro
 und kilogram-size scintillator target could achieve world-leading sens
 itivity to sub-GeV dark matter. Crystal scintillators also provide a n
 ew capability: the dark matter scattering rate depends on the orientat
 ion of the crystal\, which varies with the Earth's rotation over the c
 ourse of a sidereal day. The discovery of such a signal would be a cle
 ar sign of new physics. While most studies of daily modulation focus o
 n DM-electron scattering\, recent results for diatomic molecules sugge
 st that DM-nuclear scattering can also provide a detectable\, directio
 nal-dependent signal. In this talk I discuss both kinds of DM models\,
  the realistic prospects for crystalline detectors in the near future\
 , and the remaining theoretical work that needs to be done for nuclear
  scattering in more complicated molecules.
URL:https://www.physics.wisc.edu/events/?id=8153
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