Monday, July 22, 2013

1307.5167 (M. Viviani et al.)

Effect of three-nucleon interaction in p-3He elastic scattering    [PDF]

M. Viviani, L. Girlanda, A. Kievsky, L. E. Marcucci
We present a detailed study of the effect of different three-nucleon interaction models in p-3He elastic scattering at low energies. In particular, two models have been considered: one derived from effective field theory at next-to-next-to-leading order and one derived from a more phenomenological point of view -- the so-called Illinois model. The four-nucleon scattering observables are calculated using the Kohn variational principle and the hyperspherical harmonics technique and the results are compared with available experimental data. We have found that the inclusion of either one of the other force model improves the agreement with the experimental data, in particular for the proton vector analyzing power.
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