Unbound states by analytic continuation in the coupling constant

N. Tanaka, Y. Suzuki, K. Varga, and R. G. Lovas
Phys. Rev. C 59, 1391 – Published 1 March 1999
PDFExport Citation

Abstract

The energies and widths of resonance states are determined by the analytic continuation of bound-state energies as functions of a potential strength parameter (“the coupling constant”). Various numerical examples show the applicability of the method to systems decaying to two- and three-body channels. The examples include unbound states of the nuclei 5He, 5Li, 9Be, and 9B, described in α+N and α+α+N microscopic cluster models. Some states considered are controversial. Here they are well defined, and their questionable features are understood to arise from their proximity to the complex-energy region of unphysical resonances with negative energies and positive widths.

  • Received 20 July 1998

DOI:https://doi.org/10.1103/PhysRevC.59.1391

©1999 American Physical Society

Authors & Affiliations

N. Tanaka1, Y. Suzuki2, K. Varga3,4, and R. G. Lovas3

  • 1Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
  • 2Department of Physics, Niigata University, Niigata 950-2181, Japan
  • 3Institute of Nuclear Research of the Hungarian Academy of Sciences, P. O. Box 51, H-4001 Debrecen, Hungary
  • 4Physics Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439

References (Subscription Required)

Click to Expand
Issue

Vol. 59, Iss. 3 — March 1999

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×