2003/07/06 by Kazuyuki Ogata, M. Yahiro, Ogata, Kazuyuki +12
Physics and Astronomy · #FOS: Physical sciences #Gamma-ray bursts and supernovae #Neutrino Physics Research #Nuclear Theory (nucl-th) #Nuclear physics research studies #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/0307024
8 pages, 4 figures, to be published in the Proceedings of the 10th International Conference on Nuclear Reaction Mechanisms, Varenna, Villa Monastero, June 9--13, 2003
arxiv created 2003/07/06 · openalex publication_date 2003/07/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A new version of the method of Continuum-Discretized Coupled-Channels method (CDCC) is proposed, that is, the Eikonal-CDCC method (E-CDCC). The E-CDCC equation, for Coulomb dissociation in particular, can easily and safely be solved, since it is a first-order differential equation and contains no huge angular momentum in contrast to the CDCC one. The scattering amplitude calculated by E-CDCC has a similar form to that by CDCC. Then one can construct hybrid amplitude in an intuitive way, i.e., CDCC amplitude is adopted for a smaller angular momentum L and E-CDCC one for a larger L related to an impact parameter b. The hybrid calculation is found to perfectly reproduce the quantum mechanical result for 58Ni(8B,7Be+p)58Ni at 240 MeV, which shows its applicability to systematic analysis of 8B dissociation to extract the astrophysical factor S17 with high accuracy.