Radiation pions in two nucleon effective field theory

Jan, 1999
14 pages
Published in:
  • Nucl.Phys.A 665 (2000) 164-182
e-Print:
Report number:
  • CALT-68-2210

Citations per year

1999200520112017202305101520
Abstract:
For interactions involving two or more nucleons it is useful to divide pions into three classes: potential, radiation, and soft. The momentum threshold for the production of radiation pions is Qr=MNmπQ_r = \sqrt{M_N m_\pi}. We show that radiation pions can be included systematically with a power counting in QrQ_r. The leading order radiation pion graphs which contribute to NN scattering are evaluated in the PDS and OS renormalization schemes and are found to give a small contribution. The power counting for soft pion contributions is also discussed.
  • nucleon nucleon: interaction
  • effective Lagrangian
  • pi: hadroproduction
  • nucleon nucleon: elastic scattering
  • Feynman graph: higher-order
  • renormalization