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Three-Body Resonances in Framework of the Faddeev Configuration Space Approach | | E. A. Kolganova
; A. K. Motovilov
; | | Date: |
14 Feb 1997 | | Journal: | Proc. of 9th Intern. Conf. on Computational Modelling and Computing in Physics, CMCP96 (Dubna, September 16--21, 1996). JINR, Dubna, 1997. P. 177-180 | | Subject: | nucl-th | | Abstract: | Algorithm, based on explicit representations for analytic continuation of the T-matrix Faddeev components on unphysical sheets, is worked out for calculations of resonances in the three-body quantum problem. According to the representations, poles of the T--matrix, scattering matrix and resolvent on unphysical sheets, interpreted as resonances, coincide with those complex energy values where appropriate truncations of the scattering matrix have zero as eigenvalue. Scattering amplitudes on the physical sheet, necessary to construct scattering matrix, are calculated on the basis of the Faddeev differential equations. Effectiveness of the algorithm developed is demonstrated for example of searching for resonances in the system $nnp$ and in a model three-boson system. | | Source: | arXiv, nucl-th/9702037 | | Services: | Forum | Review | PDF | Favorites | |
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