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Cluster sum rules for three-body systems with angular-momentum dependent interactions

AuthorsDiego, Raul de; Garrido, Eduardo CSIC ORCID; Jensen, A. S.; Fedorov, D. V.
Issue Date5-Feb-2008
PublisherAmerican Physical Society
CitationPhysical Review C - Nuclear Physics 77: 024001 (2008)
AbstractWe derive general expressions for non-energy-weighted and energy-weighted cluster sum rules for systems of three charged particles. The interferences between pairs of particles are found to play a substantial role. The energy-weighted sum rule is usually determined by the kinetic energy operator, but we demonstrate that it has similar additional contributions from the angular momentum and parity dependence of two- and three-body potentials frequently used in three-body calculations. The importance of the different contributions is illustrated with the dipole excitations in He6. The results are compared with the available experimental data. © 2008 The American Physical Society.
Description10 págs.; 3 figs.; 2 tabs.; 1 apéndice ; PACS number(s): 21.45.−v, 11.55.Hx, 23.20.−g, 31.15.xj
Publisher version (URL)https://doi.org/10.1103/PhysRevC.77.024001
Identifiersdoi: 10.1103/PhysRevC.77.024001
issn: 0556-2813
Appears in Collections:(CFMAC-IEM) Artículos
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