caa a22 4500 469041234 CHVBK 20180323132811.0 cr unu---uuuuu 170328e19921101xx s 000 0 eng 10.1007/BF02847338 doi (NATIONALLICENCE)springer-10.1007/BF02847338 Phase-function method for complex potentials [Elektronische Daten] [A Jana, J Pal, T Nandi, B Talukdar] We consider the scattering problem for absorptive interactions within the framework of phase-function method. A Green's function approach is used to derive the phase equation. As a case study we apply the algorithm presented on a shallow α-α potential, the real and imaginary parts of which have been deduced from experimental data. The real and imaginary parts of theS-wave phase shift are found to vary smoothly with energy while those forD andG waves show some fluctuations in the low-energy region. It is shown that studies in spatial behaviour of the phase function provide a plausible explanation for the dynamical origin of these fluctuations. Indian Academy of Sciences, 1992 Scattering theory nationallicence phase-function method nationallicence complex potential nationallicence phase shifts nationallicence 24.10 nationallicence 25.10 nationallicence Jana A. Department of Physics, Visva-Bharati University, 731 235, Santiniketan, India aut Pal J. Department of Physics, Visva-Bharati University, 731 235, Santiniketan, India aut Nandi T. Department of Physics, Visva-Bharati University, 731 235, Santiniketan, India aut Talukdar B. Department of Physics, Visva-Bharati University, 731 235, Santiniketan, India aut Pramana Springer India 39/5(1992-11-01), 501-508 0304-4289 39:5<501 1992 39 12043 https://doi.org/10.1007/BF02847338 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02847338 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jana A. Department of Physics, Visva-Bharati University, 731 235, Santiniketan, India aut NATIONALLICENCE 700 1- Pal J. Department of Physics, Visva-Bharati University, 731 235, Santiniketan, India aut NATIONALLICENCE 700 1- Nandi T. Department of Physics, Visva-Bharati University, 731 235, Santiniketan, India aut NATIONALLICENCE 700 1- Talukdar B. Department of Physics, Visva-Bharati University, 731 235, Santiniketan, India aut NATIONALLICENCE 773 0- Pramana Springer India 39/5(1992-11-01), 501-508 0304-4289 39:5<501 1992 39 12043 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer