Recent experimental results provide tantalizing
new evidence for the existence of a light
pseudoscalar particle that couples to photons. If
correct, this interpretation of those results indicate
a new mass scale in particle physics. This physics
may be testable at the Jefferson Lab Free Electron Laser.
I will present an overview of previous studies and results as
motivation, indicate several of the
ideas that have been discussed by a group of
interested scientists at Hampton University and
Jefferson Lab to test the new claims in a completely
independent way, and explain details of a proposed
first measurement using the Jefferson Lab FEL.
Talk Slides: (Slides)