Isoscalar Single-Pion Production in the Region of Roper and $d^{\ast }(2380)$ Resonances

COSY Collaboration, P. Adlarson, W. Augustyniak +90

Exclusive measurements of the quasi-free $pn\to pp{\pi }^{-}$ and $pp\to pp{\pi }^0$ reactions have been performed by means of $pd$ collisions at $T_p$ = 1.2 GeV using the WASA detector setu…