Faddeev treatment of long-range correlations and the one-hole spectral function of 16O

C. Barbieri; W. H. Dickhoff; W. H. Dickhoff

doi:10.1103/PhysRevC.65.064313

Faddeev treatment of long-range correlations and the one-hole spectral function of ¹⁶O

C. Barbieri, W. H. Dickhoff, W. H. Dickhoff

Department of Physics

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52 Scopus citations

Abstract

The Faddeev technique is employed to study the influence of both particle-particle and particle-hole phonons on the one-hole spectral function of ¹⁶O. Collective excitations are accounted for at a random phase approximation level and subsequently summed to all orders by the Faddeev equations to obtain the nucleon self-energy. An iterative procedure is applied to investigate the effects of the self-consistent inclusion of the fragmentation in the determination of the phonons and the corresponding self-energy. The present results indicate that the characteristics of hole fragmentation are related to the low-lying states of ¹⁶O.

Original language	English
Article number	064313
Pages (from-to)	643131-6431310
Number of pages	5788180
Journal	Physical Review C - Nuclear Physics
Volume	65
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.65.064313
State	Published - Jun 2002

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10.1103/PhysRevC.65.064313

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title = "Faddeev treatment of long-range correlations and the one-hole spectral function of 16O",

abstract = "The Faddeev technique is employed to study the influence of both particle-particle and particle-hole phonons on the one-hole spectral function of 16O. Collective excitations are accounted for at a random phase approximation level and subsequently summed to all orders by the Faddeev equations to obtain the nucleon self-energy. An iterative procedure is applied to investigate the effects of the self-consistent inclusion of the fragmentation in the determination of the phonons and the corresponding self-energy. The present results indicate that the characteristics of hole fragmentation are related to the low-lying states of 16O.",

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AB - The Faddeev technique is employed to study the influence of both particle-particle and particle-hole phonons on the one-hole spectral function of 16O. Collective excitations are accounted for at a random phase approximation level and subsequently summed to all orders by the Faddeev equations to obtain the nucleon self-energy. An iterative procedure is applied to investigate the effects of the self-consistent inclusion of the fragmentation in the determination of the phonons and the corresponding self-energy. The present results indicate that the characteristics of hole fragmentation are related to the low-lying states of 16O.

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Faddeev treatment of long-range correlations and the one-hole spectral function of ¹⁶O

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