"The Fermi LAT Search for Photon Lines and Dark Matter Implications" 

Annihilating or decaying dark matter particles can produce 
monochromatic gamma-rays, a distinctive signature for Dark Matter.  We 
present gamma-ray line limits from 30 GeV to 200 GeV for 11 months of 
Fermi LAT data, using data selection specific to the line analysis and 
integrated over most of the sky. We give flux limits and the derived 
annihilation cross-section and decay lifetime limits for the 
gamma-gamma, and gamma-Z channels.  Theoretical implications will be 
briefly discussed.