Pion deuteron scattering and chiral expansions

May, 2006
12 pages
e-Print:

Citations per year

200620092012201520174130
Abstract:
We discuss convergence issues as well as short distance constraints on the deuteron wave functions based on chiral perturbation theory relevant to pion deuteron scattering. Non-analytical terms arise in the multiple scattering series for the pion-deuteron scattering length limiting the accuracy of the calculations. This result resembles similar findings in the structure of the NN interaction. The effects are found not to be numerically large. The iso-scalar πN\pi N scattering length from the iso-vector one and the πd\pi d scattering length yields values compatible with the experimental number and with much smaller errors.
  • 03.65.Nk
  • 13.75.Cs
  • 21.45.+v
  • 11.10.Gh
  • 21.30.Fe
  • pion-deuteron scattering
  • chiral symmetries
  • nuclear forces
  • multiple scattering
  • perturbation theory