Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1997-04-03
Phys.Lett.B409:19-25,1997
Physics
Nuclear Physics
Nuclear Theory
18 pages REVTeX, 3 figures
Scientific paper
10.1016/S0370-2693(97)00841-1
We present high precision benchmark calculations for the triton binding energy using the most recent, phase equivalent realistic nucleon-nucleon (NN) potentials and the Tuscon-Melbourne pi-pi three-nucleon force (3NF). That 3NF is included with partial waves up to a total two-body angular momentum of j_max=6. It is shown that the inclusion of the 3NF slows down the convergence in the partial waves and j_max=5 is needed in order to achieve converged results within a few keV. We adjust the cut-off parameter Lambda in the form factors of the Tuscon-Melbourne 3NF separately for the different NN potentials to the triton binding energy. This provides a set of phenomenological three-nucleon Hamiltonians which can be tested in three-nucleon scattering and systems with A>3. A connection between the probability to find two nucleons at short distances in the triton and the effect of that 3NF on the triton binding energy is pointed out.
Gloeckle Walter
Hueber D.
Kamada Hiroyuki
Nogga Andreas
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