No abstract

The shift in binding energy that results from allowing one explicit 6 in the triton is studied using the Hannover one-5 force model. The one-6 analysis extends through J&4, subject only to L(N4) &4.Our main result is a 103-channel triton binding energy of 7.83 MeV, which corresponds to a net attractive one-6 effect of 370 keV. The corresponding (repulsive) dispersive effect is found to be 600 keV, so that the full one-b, three-body-force effect is 970 keV. Appropriately restricted J &2 calculations substantiate the basic results of the original Hannover triton calculations, although differences are found.The original J 2 figures are in good agreement with our full results and dissecting our results shows this to be largely due to cancellations among the various truncations employed in the original calculations. A numerical correction is obtained for each truncation and these are found to be relatively independent of each other. This forms a reliable basis for subsequent bA studies. The Hannover one-6 model is also critically examined for physical consistency and the So effective range is found to be about 0.1 fm too low, a defect which could be responsible for about half of the net 370-keV increase in triton binding. The approach, methods, and numerical checks that underlie our investigations are also detailed.