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BEGIN:VEVENT
DTSTAMP:20261023T233949Z
LAST-MODIFIED:20121116T203436Z
DTSTART:20090323T163000Z
DTEND:20090323T173000Z
UID:event399@bu.edu
URL:http://physics.bu.edu/internal/events/show/399
SUMMARY:A Theory of Dark Matter: PAMELA positrons\, DAMA\, and a New Force 
	in the Dark Sector
DESCRIPTION:Featuring Douglas Finkbeiner\, Harvard University\n\nPart of th
	e HET Seminar Series.\n\nAbstract: A new force in the dark sector can chang
	e the expected properties of SUSY WIMP dark matter in significant ways: the
	 annihilation cross section is enhanced by a Sommerfeld enhancement\, perha
	ps by 2 or 3 orders of magnitude; the WIMP annihilates to the new force car
	rier\, which immediately decays to light particles\, bypassing the usual co
	nstraints from pi-0 gammas; and excited states naturally arise in the WIMP\
	, making inelastic scattering possible. These are exactly the properties ne
	eded to explain recent results from astrophysics (PAMELA positrons excess) 
	and direct detection (DAMA) without violating the many tight constraints fr
	om other experiments. I will review the current status of the data\, show h
	ow it can be explained with such a WIMP\, and discuss the "smoking gun" sig
	nals expected in future data sets (Fermi LAT\, CDMS\, CRESST\, LUX\, etc.).
LOCATION: \, \, 
STATUS:CONFIRMED
CLASS:PUBLIC
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