Quadrupole and higher-order pairing forces

K. F. Pál, N. Rowley, M. A. Nagarajan

Research output: Contribution to journalArticle

14 Citations (Scopus)


Recent work suggests that the quadrupole pair field may be important in describing certain properties of the crossings of high-spin rotational bands (e.g. crossing frequencies) in quantitative detail. We investigate its relative importance by performing an exact diagonalisation of a cranked deformed hamiltonian containing short-range residual interactions in a single j-shell. The major diflerence between odd and even particle-number crossing frequencies is seen to be described by blocking plus quadrupole pairing (J = 2) along with a significant hexadecapole pairing effect (J = 4). Absolute crossing frequencies are also sensitive to higher J-values. The interactions between the crossing levels are also discussed.

Original languageEnglish
Pages (from-to)285-308
Number of pages24
JournalNuclear Physics, Section A
Issue number2
Publication statusPublished - Aug 24 1987

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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