Testing CP Violation and Universal Extra Dimensions at Future Colliders
  A future linear e+e- collider with a clean environment, tunable collision energy, high luminosity, polarized incoming beams, and additional e-e-, e-gamma and gamma-gamma modes, will offer precision tools to explore new physics. Here we summarize three papers submitted to the ICHEP04 conference in which polarized e+e- and gamma-gamma beams are exploited to search for CP violation, and universal extra dimensions (UED). 
Jan Kalinowski