Overview of pion-nucleus interaction at low energies
Nuclear Theory
2010-10-27 v1
Abstract
Predictions of the existence of well-defined deeply bound pionic atom states for heavy nuclei and the eventual observation of such states by the (d,3He) reaction have revived interest in the pion-nucleus interaction at threshold and in its relation to the corresponding pion-nucleon interaction. Explanation of the 'anomalous' s-wave repulsion in terms of partial restoration of chiral symmetry and/or in terms of energy-dependence effects have been tested in global fits to pionic atom data and in a recent dedicated elastic scattering experiment. The role of neutron density distributions in this context is discussed in detail for the first time.
Keywords
Cite
@article{arxiv.nucl-th/0607049,
title = {Overview of pion-nucleus interaction at low energies},
author = {E. Friedman},
journal= {arXiv preprint arXiv:nucl-th/0607049},
year = {2010}
}
Comments
8 pages, 4 figures, MESON2006 Workshop, to appear in Int. J. Modern Phys. A