6533b839fe1ef96bd12a63bf

RESEARCH PRODUCT

ProjectileΔand target Roper excitation in thep(d,d′)Xreaction

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In this paper we compare a model that contains the mechanisms of $\ensuremath{\Delta}$ excitation in the projectile and Roper excitation in the target with experimental data from two ${(d,d}^{\ensuremath{'}})$ experiments on a proton target. The agreement of the theory with the experiment is fair for the data taken at ${T}_{d}=2.3$ GeV. The $\ensuremath{\Delta}$ excitation in the projectile is predicted close to the observed energy with the correct width. The theory, however, underpredicts by about 40% the cross sections measured at ${T}_{d} = 1.6$ GeV at angles where the cross section has fallen by about two orders of magnitude. The analysis done here allows us to extract an approximate strength for the excitation of the Roper $[{N}^{*}(1440)]$ excitation and a qualitative agreement with the theoretical predictions is also found.