Improved Convergence in the Three-Nucleon System at Very Low Energies

@inproceedings{Griesshammer2004ImprovedCI,
  title={Improved Convergence in the Three-Nucleon System at Very Low Energies},
  author={Harald W. Griesshammer},
  year={2004}
}
Neutron-deuteron scattering in the context of “pion-less” Effective Field Theory at very low energies is investigated to next-to-next-to-leading order. Convergence is improved by fitting the two-nucleon contact interactions to the tail of the deuteron wave-function, a procedure known as Z-parameterisation and extended here to the three-nucleon system. The improvement is particularly striking in the doublet-S wave (triton) channel, where better agreement to potential-model calculations and… CONTINUE READING
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