π+Photoproduction aboveEγ=1GeV near the Forward Direction

Update on Partial-Wave Analysis

“…In a fixed-t dispersion relation, the real part is given by the Born term plus a weighted integral over imaginary parts. In π photoproduction, it has been shown that the Born term is damped primarily through the inclusion of M 3/2 1+ in the integral [17]. Adding this contribution cancels the non-forward Born contribution and enhances the forward peak [18].…”