Microscopic origins of effective charges in the shell model

Petr Navrátil, Michael Thoresen, Bruce R Barrett

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

We use a large-scale 6(Latin small letter h with stroke)Ω calculation for 6Li with microscopically derived two-body interaction to construct the 0(Latin small letter h with stroke)Ω 0p shell effective Hamiltonian, electric quadrupole, and magnetic dipole operators. While the E2 and M1 6(Latin small letter h with stroke)Ω operators are one-body operators with free nucleon charges, the effective operators are two-body operators with substantially different renormalization for the isoscalar and isovector matrix elements, especially for the E2 operator. We show that these operators can be very well approximated by one-body operators provided that effective proton and neutron charges are used. The obtained effective charges are compatible with those used in phenomenological shell-model studies. The two-body part of the effective operators is estimated.

Original languageEnglish (US)
JournalPhysical Review C - Nuclear Physics
Volume55
Issue number2
StatePublished - Feb 1997

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operators
strokes
magnetic dipoles
quadrupoles
neutrons
protons
matrices
interactions

ASJC Scopus subject areas

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

Cite this

Microscopic origins of effective charges in the shell model. / Navrátil, Petr; Thoresen, Michael; Barrett, Bruce R.

In: Physical Review C - Nuclear Physics, Vol. 55, No. 2, 02.1997.

Research output: Contribution to journalArticle

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