Analyzing powers of inelastic $\mathrm{dp}$ scattering in the energy region of Δ and Roper resonances excitation

A study of inelastic scattering of polarized $3.73-\mathrm{GeV}/c$ deuterons on protons in the energy region of the Roper $N\left(1440\right)\mathrm{}$ and the $\Delta \mathrm{}\left(1232\right)\mathrm{}$ resonances excitation has been performed in an exclusive experiment at LNS (Laboratoire National SATURNE, Saclay, France) using the SPES4-$\pi$ setup. Tensor and vector analyzing powers of pion production for the reactions: $d+\overrightarrow{p}d+n+{\pi }^{+},$ $d+\overrightarrow{p}d+p+{\pi }^0,$ $d+\overrightarrow{p}d+N+\pi \pi$ have been measured as functions of the squared deuteron four-momentum transfer t, of the effective mass of the subsystems $N\pi ,$ $N\pi \pi ,$ and of the pion emission angle. A strong dependence of these analyzing powers upon the pion emission angle is observed. It is found that $A_{\mathrm{yy}}$ values for the considered reaction channels are systematically larger than the known inclusive ${p(d,d}^{\prime })X$ world data at the nearest beam energy.