Measurement of $$D(\vec p,p)D$$ elastic scattering at 10.0, 12.0, 14.1 and 16.5 MeV especially for small forward and extreme backward scattering angles

Abstract

Abstract. The D(ff, p)D elastic scattering was investigated especially in theCoulomb sensitive scattering regions. Angular distributions of the differential cross section and of the analyzing power Ay, with emphasis on small scattering angles, were measured at 10.0 and 14.1 MeV. For extreme backward angles up to ~.m. = 179~ the differential cross section was measured at 12o0, 14.1 and 16.5 MeV. The data have been compared with recent Faddeev calculations based on the realistic meson-exchange Paris potential and including an approximate Coulomb correction. There are discrepancies between the data and the calculations especially for the analyzing power. This indicates that the approximate treatment of Coulomb effects and possibly also the purely rmclear part of the calculations need to be improved.

Three-nucleon force effects in proton-deuteron scattering

“…(It is noted that the calculation with AV18 + BR 800 + V phe almost coincides with the AV18 + RB 660 calculation.) At forward angles, while the AV18 + RB 660 calculation is consistent with the Kyushu data [18], the AV18 + BR 800 + V πσ calculation is rather consistent with the Köln data [17]. On the other hand, at back ward angles, both calculations seem to overestimate the data by 5 − 10%.…”

“…When choosing Λ π = 800 MeV and Λ σ = 1300 MeV, we find that the πσ-3NF with V In Fig. 4, experimental data [15][16][17][18] and calculations for the differential cross sections σ(θ) of the pd elastic scattering at E p = 10.0 MeV are plotted as a ratio to the corresponding calculation with the AV18 potential. First, we have to notice that there are some discrepancies among the available experimental data.…”

Cross Section Minima in ElasticNdScattering: Possible Evidence for Three-Nucleon Force Effects

“…MeV. The prediction of the CD Bonn NN interaction without (short dashed) and with 3NF (solid curve) is compared to pd data (circles from [21] and crosses from [22]). The long dashed curve is the pure 3NF prediction.…”

Calculation of Proton-Deuteron Scattering With Coulomb Force Effects

“…In the figure, calculations with the Argonne V 18 NN potential (AV18) 15 plus a two-pion exchange 3N potential of Brazil model (BR), 16 which serves to reproduce the 3N binding energy, are compared with experimental data. [17][18][19][20][21] A closer observation of the figure shows that discrepancy between the data and the calculations still remains in the DCS at backward angles. For an example to highlight the discrepancy, we plot the DCS data and AV18 + BR calculations divided by calculations with only AV18 NN potential.…”