Clusters as many-body resonances

R. Id Betan, R. J. Liotta, N. Sandulescu, T. Vertse

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)267-271
Number of pages5
JournalActa Physica Hungarica New Series Heavy Ion Physics
Volume18
Issue number2-4
DOIs
Publication statusPublished - Dec 1 2003

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Keywords

  • Continuum
  • Proton decay
  • Two-particle resonances

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy(all)

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