The triton with long-range chiral N3LO three nucleon forces

Details The triton with long-range chiral N3LO three nucleon forces The triton with long-range chiral N3LO three nucleon forces

2011-07-26

arxiv.org/abs/1107.5163v1

Physics

Nuclear Physics

Nuclear Theory

18 pages, 6 figures

Scientific paper

Long-range contributions to the three-nucleon force that have been recently worked out in chiral effective field theory at next-to-next-to-next-to-leading order are for the first time included in the triton and the doublet nucleon-deuteron scattering length calculations. The strengths of the two short-range terms available at this order in the chiral expansion are determined from the triton binding energy and the neutron-deuteron doublet scattering length. The structure of the resulting three-nucleon force is explored and effects for the two-nucleon correlation function in the triton are investigated. Expectation values of the individual contributions to the three-nucleon force in the triton are found to be in the range from a few 100 keV to about 1 MeV. Our study demonstrates that the very complicated operator structure of the novel chiral three-nucleon forces can be successively implemented in three-nucleon Faddeev calculations.

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