Regularized zero range model and an application to the triton and the hypertriton

Jul, 2001
20 pages
Published in:
  • Nucl.Phys.A 697 (2002) 783-801
e-Print:

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Abstract:
We examine the regularized zero-range model in an application to three-fermion systems -- the triton and the hypertriton. We consider bound states and low-energy neutron-deuteron and lambda-deuteron scattering. The model is shown to provide an adequate quantitative description of these system on a par with finite-range potential models. The well known correlation between the doublet ndnd scattering length and the triton binding energy (Phillips line) finds a natural explanation within the model.
  • 21.45.+v
  • 11.80.Jy
  • 21.30.Fe
  • Zero-range potential
  • Regularization
  • Three-body problem
  • Effective field theory