Abstract
A formalism to evaluate the resonant states produced by two particles moving outside a closed shell core is presented. The two-particle states are calculated by using a single-particle representation consisting of bound states, Gamow resonances and scattering states in the complex energy plane (Berggren representation). Two representative cases are analysed corresponding to whether the Fermi level is below or above the continuum threshold. It is found that long-lived resonances are mostly determined by either bound states or by narrow Gamow resonances. However, they are significantly affected by wide resonances and the continuum background itself.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
F.M. Marqués et al., Phys. Rev. C 64 (2001) 61301(R) and references therein.
T. Berggren, Phys. Lett. B73 (1978) 389.
R.J. Liotta, E. Maglione, N. Sandulescu and T. Vertse, Phys. Lett. 367B (1996) 1.
G.F. Bertsch and H. Esbensen, Ann. of Phys. 209 (1991) 327.
R. Id Betan, R.J. Liotta, N. Sandulescu and T. Vertse, Phys. Rev. Lett. 89 (2002) 261.
N. Sandulescu, N. Van Giai and R.J. Liotta, Phys. Rev. C 61 (2000) 61301(R).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Id Betan, R., Liotta, R.J., Sandulescu, N. et al. Clusters as Many-Body Resonances. APH N.S., Heavy Ion Physics 18, 267–271 (2003). https://doi.org/10.1556/APH.18.2003.2-4.24
Received:
Issue Date:
DOI: https://doi.org/10.1556/APH.18.2003.2-4.24