Number-conserving shell-model calculations for nickel and tin isotopes

Y. K. Gambhir, A. Rimini, T. Weber

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)


The broken-pair approximation (BPA), introduced as a number-conserving approximation to the lowest-seniority shell model (LSSM), is applied to the nickel and tin isotopes. The shell-model interactions used are microscopically derived from the Tabakin potential and the Yale-Shakin reaction matrix or phenomenologically determined (by the Argonne group) through a shell-model-fit procedure. The results are compared with those of standard quasiparticle calculations (QTD) and, when possible, of the exact shell model (ESM) and of the LSSM. It is found that the BPA and the QTD can give essentially different results. Comparison with the LSSM and the ESM indicates that the BPA is a much more reliable approximation than the QTD.

Original languageEnglish
Pages (from-to)1965-1971
Number of pages7
JournalPhysical Review C
Issue number5
Publication statusPublished - 1971

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • Nuclear and High Energy Physics


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