Recent results on rare decay pi0 to e+e-

Abstract

Experimental and theoretical progress concerning the rare decay pi0 to e+e- is briefly reviewed. It includes the latest data from KTeV and a new model independent estimate of the decay branching which show the deviation between experiment and theory at the level of 3.3\sigma.

Comments: 5 pages, 3 figures, talk at Int. Workshop on e+e- collisions from Phi to Psi, 7-10 April 2008, Frascati, Italy