A. Gasparyan, J. Haidenbauer, C. Hanhart
Published 2005-06-22, updated 2005-09-15Version 2
A recently proposed method based on dispersion theory, that allows to extract the scattering length of a hadronic two-body system from corresponding final-state interactions, is generalized to the situation where the Coulomb interaction is present. The steps required in a concrete practical application are discussed in detail. In addition a thorough examination of the accuracy of the proposed method is presented and a comparison is made with results achieved with other methods like the Jost-function approach based on the effective-range approximation. Deficiencies of the latter method are pointed out. The reliability of the dispersion theory method for extracting also the effective range is investigated.
Comments: 16 pages, 6 figures, some corrections to text, to appear in Phys. Rev. C
Journal: Phys.Rev. C72 (2005) 034006
Determination of the \bar K^0 d scattering length from the reaction pp \to d \bar K^0 K^+
Scale-(in)dependence in quantum 4-body scattering
Extraction of N* information from the limited p(gamma,K+)Lambda data set
