Year: 2000
Type: article
Abstract: We demonstrate that the kernel of the Lippmann-Schwinger equation, associated with interactions consisting of a sum of the Coulomb plus a short-range nuclear potential, becomes degenerate below threshold. Taking advantage of this fact, we present a simple method of calculating the effective range function for negative energies. This may be useful in practice since the effective range expansion extrapolated to threshold allows us to extract the low-energy scattering parameters: the Coulomb modified scattering length and the effective range.
Author: A Deloff
Institution: National Centre for Nuclear Research
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2010132763