Target and Beam-Target Spin Asymmetries in Exclusive Pion Electroproduction for $Q^2>1$ GeV${}^2$. I. $ep\to e{\pi }^{+}n$

P. E. Bosted, M. J. Amaryan, S. Anefalos Pereira +115

Beam-target double-spin asymmetries and target single-spin asymmetries were measured for the exclusive ${\pi }^{+}$ electroproduction reaction ${\gamma }^{\ast }p\to n{\pi }^{+}$. The results were obtained…