How important is the three-nucleon force?

Abstract

By calculating the contribution of the $\pi -\pi$ three-body force to the three-nucleon binding energy in terms of the $\pi N$ amplitude using perturbation theory, we are able to determine the contribution of the different $\pi N$ partial waves to the three-nucleon force. The division of the $\pi N$ amplitude into a pole and nonpole gives a unique procedure for the determination of the $\pi NN$ form factor in the model. The total contribution of the three-body force to the binding energy of the triton is found to be very small.

Comments: 16 page RevTeX manuscript, two figures available from authors I.R.Afnan@flinders.edu.au, to be published in Phys.Rev.C