We study deuteron- proton elastic scattering in the deuteron energy range between
500 MeV and 2 GeV at the cms scattering angle of 180$^0$. The simplest reaction mechanism is one-nucleon-exchange (ONE). But the ONE-predictions are in a disagreement with the experimental data both for the differential cross section and polarization observables.
In this report we consider deuteron- proton...
The necessity of three-nucleon potentials (3NPs) in the nuclear Hamiltonian in addition to two-nucleon potentials (2NPs) is well recognized. A 3NP based on two-pion exchange process among three nucleons (2piE) is often used in few-nucleon calculations, where its strong attractive effect is suppressed by a form factor with a low value of the cutoff mass parameter (about 700 MeV).
In spite...
The ab-initio theoretical study of the three-nucleon (3N) observables for the nucleon elastic and inelastic scattering on the deuteron is possible using realistic models of nuclear forces. Such models contain a number of free parameters whose values are typically fixed using the two-nucleon data. In case of few models, as the One-Pion-Exchange-Gaussian (OPE-Gaussian) force [1] or the chiral...
At present as one of the most realistic candidate to dibaryon resonance is considered the resonance $D_{IJ}=D_{03}$ observed by WASA@COSY \cite{WASA11} in the total cross section of the reaction of two-pion production $pn\to d\pi^0\pi^0$, here $I$ is the isospin and $J$ is the total angular momentum of this resonance. Very similar resonance structure was observed by ANKE@COSY in the...
