Antibound poles in cut-off Woods-Saxon and strictly finite-range potentials

作者:Darai J*; Racz A; Salamon P; Lovas R G
来源:Physical Review C, 2012, 86(1): 014314.
DOI:10.1103/PhysRevC.86.014314

摘要

The motion of l = 0 antibound poles of the S matrix with varying potential strength is calculated in a cut-off Woods-Saxon (WS) potential and in a potential that goes to zero smoothly at a finite distance and is exactly zero beyond [P. Salamon and T. Vertse, Phys. Rev. C 77, 037302 (2008)]. The pole positions of the antibound states as well as of the resonances depend on the cutoff radius, especially for higher node numbers. The starting points (at potential zero) of the pole trajectories correlate well with the range of the potential. The normalized antibound radial wave functions on the imaginary k axis below and above the coalescence point have been found to be real and imaginary, respectively.

  • 出版日期2012-7-11