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

被引：10

作者：

Darai, J. ^{[1
]}

Racz, A. ^{[2
]}

Salamon, P. ^{[3
]}

Lovas, R. G. ^{[3
]}

机构：

[1] Univ Debrecen, Dept Expt Phys, H-4010 Debrecen, Hungary

[2] Univ Debrecen, Fac Informat, H-4010 Debrecen, Hungary

[3] Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary

来源：

PHYSICAL REVIEW C | 2012年 / 86卷 / 01期

关键词：

SCHRODINGER-EQUATION; EXPANSIONS; STATES;

D O I：

10.1103/PhysRevC.86.014314

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

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.

引用

页数：6

共 7 条

[1] Distributions of the S-matrix poles in Woods-Saxon and cut-off Woods-Saxon potentials
Salamon, P.
Baran, A.
Vertse, T.
[J]. NUCLEAR PHYSICS A, 2016, 952 : 1 - 17
[2] Matching polynomial tails to the cut-off Woods-Saxon potential
Baran, A.
Vertse, T.
[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS, 2017, 26 (11)
[3] Calculating broad neutron resonances in a cut-off Woods-Saxon potential
Á. Baran
Cs. Noszály
P. Salamon
T. Vertse
[J]. The European Physical Journal A, 2015, 51
[4] Calculating broad neutron resonances in a cut-off Woods-Saxon potential
Baran, A.
Noszaly, Cs.
Salamon, P.
Vertse, T.
[J]. EUROPEAN PHYSICAL JOURNAL A, 2015, 51 (07): : 1 - 5
[5] A NEW FAMILY OF WOODS-SAXON POTENTIALS WITH COMPLEX POLES
Niculescu, V. I. R.
Popescu, D.
Anton, Ramona
Sandru, Liana
[J]. ROMANIAN JOURNAL OF PHYSICS, 2016, 61 (9-10): : 1513 - 1518
[6] Poles of the S-Matrix in Woods-Saxon and Salamon-Vertse Potentials
Vertse, T.
Lovas, R. G.
Salamon, P.
Racz, A.
[J]. NUCLEAR STRUCTURE AND DYNAMICS '12, 2012, 1491 : 113 - 116
[7] The Use of Ixaru's Method in Locating the Poles of the S-matrix in Strictly Finite-Range Potentials
Vertse, Tamas
Lovas, R. G.
Racz, A.
Salamon, P.
[J]. NUMERICAL ANALYSIS AND APPLIED MATHEMATICS (ICNAAM 2012), VOLS A AND B, 2012, 1479 : 1216 - 1219

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