Deuteron Compton Scattering: A Random Walk
Abstract
In this sketch, some recent developments in Compton scattering off the deuteron are reviewed. The strong energy-dependence of the scalar magnetic dipole polarisability \beta_M1 turns out to be crucial to understand the data from Saskatoon at 94 MeV. Chiral Effective Field Theory is used to extract the static iso-scalar dipole polarisabilities as \bar{\alpha}^s=12.6\pm1.4_{stat}\pm1.0_{wavefu} and \bar{\beta}^s=2.3\pm1.7_{stat}\pm0.8_{wavefu}, in units of 10^{-4} fm^3. Therefore, proton and neutron polarisabilities are identical within error bars. For details and a better list of references, consult the given references.
Cite
@article{arxiv.nucl-th/0410001,
title = {Deuteron Compton Scattering: A Random Walk},
author = {Harald W. Griesshammer},
journal= {arXiv preprint arXiv:nucl-th/0410001},
year = {2009}
}
Comments
8 pages LaTeX2e with 6 figures, using graphicx and aipproc. Plenary talk given at the 19th European Conference on Few-Body Problems in Physics, Groningen (The Netherlands), 23rd - 27th August 2004. To be published in the proceedings