Pion--deuteron scattering length in Chiral Perturbation Theory up to order χ^{3/2}

V. Baru; J. Haidenbauer; C. Hanhart; A. Kudryavtsev; V. Lensky; U. -G. Meissner

paper

Pion--deuteron scattering length in Chiral Perturbation Theory up to order χ^{3/2}

arXiv:0711.2743

Abstract

A complete calculation of the corrections to pion-deuteron scattering length up to order $χ^{3/2}$ with $χ = m_{π} / M_{N}$ is performed. The calculation includes the dispersive contributions and corrections due to the explicit treatment of the $Δ$ resonance. s-wave pion-nucleon scattering parameters are extracted from a combined analysis of modern experimental data.

10 papes, 3 figures. Invited talk to the 11th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, Sept. 10th-14th 2007 (MENU 2007), Juelich, Germany