Radiation pions in two-nucleon effective field theory
Thomas Mehen, Iain W. Stewart
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 = MN mπ. We show that radiation pions can be included systematically with a power counting in Qr. 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.
Create a lesson
Related papers
Prospects for modelling odd and odd-odd nuclei using energy density functionals
A. V. Afanasjev, B. Bally, M. Bender et al.
Fast Monte Carlo calculation of multiple scattering in resonant neutron capture
R. M. Djilkibaev
Constraining three-nucleon forces in nuclear lattice effective field theory
Serdar Elhatisari, Ulf-G. Meißner, Zhengxue Ren et al.
Collective-flow signatures of bubble nuclei in intermediate-energy projectile fragmentation reactions
Ge Ren, Chun-Wang Ma, Xi-Guang Cao et al.
R-process nuclei in the rare-earth region above N=126 in Relativistic Hartree-Bogoliubov theory: A preponderance of shape-coexistence in nuclei
M. M. Sharma
Binding energies in the 0-+ and 1-- fermion--antifermion channels from the ladder Bethe-Salpeter and Schrödinger equations
Wei He, Hai-Qing Zhou