Cosmology provides evidence that most of the mass of the observable universe cannot be associated with any of the known Standard-Model elementary particles. Evidence of this 'dark matter' was also obtained in the recent data from space telescopes and in deep-underground detector experiments.  The dark-matter particle candidates, axions, were predicted to interact electromagnetically via coupling to two photons, result in observable effects in the laboratory.  I will report on an ongoing LIPSS (1,2) experiment to search for effects caused by hypothetical axions with Jefferson Lab's Free Electron Laser and discuss possibilities for future studies.

Thursday, February 5, 2009

3:30 p.m. - 4:30 p.m.
CEBAF Center, Auditorium

Talk Slides: (Slides)


For more information, please contact Dr. Alex Bogacz or Anne-Marie Valente.