Abstract
We report measurements of the photoproduction from hydrogen of single ${\ensuremath{\pi}}^{+}$ mesons at gamma-ray energies of 3.4 and 5.0 BeV and at laboratory angles of 5.1\ifmmode^\circ\else\textdegree\fi{}, 7.1\ifmmode^\circ\else\textdegree\fi{}, 9.9\ifmmode^\circ\else\textdegree\fi{}, and 15.1\ifmmode^\circ\else\textdegree\fi{}. The $s$ dependence at fixed $t$ is derived for momentum transfers of -0.20, -0.37, and -0.70 Be${\mathrm{V}}^{2}$. The pion data are compared with a Reggeized one-pion-exchange model.
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