Charge exchange operators sum rules and proton-neutron T = 0 and T = 1 pairing interactions

E. Moya de Guerra, A. A. Raduta, Larry Zamick, P. Sarriguren

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

We study sum rules for charge exchange operators of the Gamow-Teller and Fermi type and explore what can be learned from them about proton-neutron pairing in T=0 and T=1 channels. We consider both energy weighted (EWSR) and non-energy weighted (NEWSR) sum rules. We use a schematic Hamiltonian to stress the distinctive roles of T=1 and T=0 pair interactions and correlations in the sum rules. Numerical results for 44Ti are presented for both schematic and realistic interactions.

Original languageEnglish (US)
Pages (from-to)3-23
Number of pages21
JournalNuclear Physics A
Volume727
Issue number1-2
DOIs
StatePublished - Nov 3 2003

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • Gamow-Teller and Fermi strengths
  • Proton-neutron pairing
  • Sum rules

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