Effective operators in nuclear-structure calculations

Bruce R. Barrett

Research output: Contribution to journalArticlepeer-review


A brief review of the history of the use of many-body perturbation theory to determine effective operators for shell-model calculations, i.e., for calculations in truncated model spaces, is given, starting with the ground-breaking work of Arima and Horie for electromagnetic moments. The problems encountered in utilizing this approach are discussed. New methods based on unitary-transformation approaches are introduced and analyzed. The old problems persist, but the new methods allow us to obtain a better insight into the nature of the physics involved in these processes.

Original languageEnglish (US)
Pages (from-to)48-50
Number of pages3
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - Jan 1 2005

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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