Pion Form Factors from QCD Light-Cone Sum Rules

Abstract

Light-cone sum rules have proved to be very useful in calculating hadronic matrix elements for exclusive processes. I present recent applications of this method to the pion electromagnetic form factor and to the form factors of ${\gamma }^{\ast }\rho \to \pi$ and ${\gamma }^{\ast }\gamma \to {\pi }^0$ transitions.

9 pages, 3 figures, Latex, epsfig, sprocl.sty, talk presented at the 6th INT/Jlab Workshop on Exclusive and Semiexclusive Processes at High Momentum Transfer, Jefferson Laboratory, May 1999