Coupled-channel evaluations of cross sections for scattering involving particle-unstable resonances
Nuclear Theory
2009-01-09 v1
Abstract
How does the scattering cross section change when the colliding bound-state fragments are allowed particle-emitting resonances? This question is explored in the framework of a multi-channel algebraic scattering method of determining nucleon-nucleus cross sections at low energies. Two cases are examined, the first being a gedanken investigation in which n + carbon-12 scattering is studied with the target states assigned artificial widths. The second is a study of neutron scattering from beryllium-8; a nucleus that is particle unstable. Resonance character of the target states markedly varies evaluated cross sections from those obtained assuming stability in the target spectrum.
Keywords
Cite
@article{arxiv.0807.2914,
title = {Coupled-channel evaluations of cross sections for scattering involving particle-unstable resonances},
author = {P. Fraser and K. Amos and L. Canton and G. Pisent and S. Karataglidis and J. P. Svenne and D. van der Knijff},
journal= {arXiv preprint arXiv:0807.2914},
year = {2009}
}
Comments
4 pages, 3 figures