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CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-2203
DTSTART:20110822T160000Z
DURATION:PT1H0M0S
DTSTAMP:20260420T120236Z
LAST-MODIFIED:20110812T205649Z
LOCATION:5310 Chamberlin
SUMMARY:Precision Spectroscopy of Helium and Radium Atoms: Probing nuc
 lear structure and testing discrete symmetries\, Atomic Physics Semina
 r\, Ibrahim Sulai\, Argonne National Lab
DESCRIPTION:Precision measurements in atomic systems serve as powerful
  probes for studying nuclear structure as well as for testing for poss
 ible violation of the discrete symmetries. In the first part of this t
 alk\, our measurements of the nuclear charge radii of helium-8 and hel
 ium-6 will be discussed. The charge radius measurements of these short
 -lived neutron-rich isotopes serve to test the most precise nuclear mo
 dels. In the second half of the presentation\, our work towards a sear
 ch for the permanent electric dipole moment (EDM) of radium-225 will b
 e reviewed. The existence of a non-zero EDM signifies the violation of
  parity (P) and time-reversal (T) symmetry. Radium-225 is believed to 
 be particularly sensitive to T- and P-odd interactions because of its 
 unique nuclear structure.
URL:https://www.physics.wisc.edu/events/?id=2203
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