Dispersive and absorptive corrections to the pion-deuteron scattering length
Nuclear Theory
2008-11-26 v2
Abstract
We present a parameter--free calculation of the dispersive and absorptive contributions to the pion--deuteron scattering length based on chiral perturbation theory. We show that once all diagrams contributing to leading order to this process are included, their net effect provides a small correction to the real part of the pion--deuteron scattering length. At the same time the sizable imaginary part of the pion--deuteron scattering length is reproduced accurately.
Keywords
Cite
@article{arxiv.nucl-th/0608042,
title = {Dispersive and absorptive corrections to the pion-deuteron scattering length},
author = {V. Lensky and V. Baru and J. Haidenbauer and C. Hanhart and A. Kudryavtsev and U. -G. Meißner},
journal= {arXiv preprint arXiv:nucl-th/0608042},
year = {2008}
}
Comments
Numerical error corrected. Results for dispersive corrections changed - conclusions unchanged. Version as accepted by Phys. Lett. B