An Effective Field Theory for the Three-Body System
Nuclear Theory
2007-05-23 v1
Abstract
We study the scattering of a particle from a bound pair in an effective field theory using a distorted-wave renormalisation group method to find the power-counting for the three-body force terms. We find that three-body terms appear at lower orders than naively expected. They start with a marginal term that varies as a logarithm rather than a power of the energy scales in the problem. The marginal term has important implications for the three-body problem in nuclear physics.
Cite
@article{arxiv.nucl-th/0210084,
title = {An Effective Field Theory for the Three-Body System},
author = {T. Barford and M. C. Birse},
journal= {arXiv preprint arXiv:nucl-th/0210084},
year = {2007}
}
Comments
4 pages. Talk given at the 18th European Conference on Few-Body Problems in Physics, Bled, Slovenia, 8-14 September, 2002