Threshold Pion Production at Large Momentum Transfers

Abstract

We consider threshold pion electroproduction on a proton target for photon virtualities in the region 1-10 GeV${}^2$. The S-wave multipoles at threshold, $E_{0+}$ and $L_{0+}$, are calculated using light-cone sum rules.

Comments: 3 pages, talkpresented at PANIC 2008