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BEGIN:VEVENT
DTSTAMP:20260815T000501Z
LAST-MODIFIED:20191029T152342Z
DTSTART:20191119T203000Z
DTEND:20191119T213000Z
UID:event2220@bu.edu
URL:http://physics.bu.edu/internal/events/show/2220
SUMMARY:A tabletop-scale probe for multi-TeV scale physics: the electric di
	pole moment of the electron
DESCRIPTION:Featuring Dave Demille\, Yale University\nHosted by: Lee Robert
	s\nPoster: http://physics.bu.edu/internal//files/download/DeMille-poster.pd
	f\n\nPart of the Physics Department Colloquia Series.\n\nViolation of time-
	reversal (T) symmetry is observed in K- and B-meson systems\, and these mea
	surements are explained within the standard model (SM) of electroweak inter
	actions.  However\, additional sources of T violation are needed to explain
	 the cosmological asymmetry between matter and antimatter.  In the presence
	 of T-violation\, elementary particles such as the electron can have an ele
	ctric dipole moment (EDM) along their spin axis.  The SM prediction for the
	 electron EDM is nonzero\, but too small to detect. By contrast\, extension
	s to the SM frequently predict EDMs within experimental reach.  Our tableto
	p-scale experiment\, ACME\, uses methods of atomic and molecular physics to
	 detect the electron EDM. Our recent result for the EDM is consistent with 
	zero\, but sets a limit ten times smaller than any previous work.  Remarkab
	ly\, this limit sets strong constraints on theories of physics beyond the S
	M.  In many specific models\, ACME probes physics associated with new parti
	cles whose mass is well above the few-TeV scale explored directly at the La
	rge Hadron Collider. With excellent prospects for dramatic future improveme
	nts in sensitivity\, EDM searches have the promise to probe plausible model
	s of new physics even at the PeV scale.
LOCATION:SCI 109\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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