Regge amplitude fit to high-energy polarized pi- Delta++ photoproduction confirms pion dominance at small t and extracts pi N Delta coupling consistent with Delta decay plus first values for rho, b1, and a2 N Delta couplings.
Stichel, Zeitschrift f¨ ur Physik180, 170 (1964)
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Mechanisms of high energy polarized photoproduction of $\pi^{-}\Delta^{++}$
Regge amplitude fit to high-energy polarized pi- Delta++ photoproduction confirms pion dominance at small t and extracts pi N Delta coupling consistent with Delta decay plus first values for rho, b1, and a2 N Delta couplings.