Resonance and continuum Gamow shell model with realistic nuclear forces

Z. H. Sun; Q. Wu; Z. H. Zhao; B. S. Hu; S. J. Dai; F. R. Xu

doi:10.1016/j.physletb.2017.03.054

Resonance and continuum Gamow shell model with realistic nuclear forces

Z. H. Sun, Q. Wu, Z. H. Zhao, B. S. Hu, S. J. Dai, F. R. Xu

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

Starting from realistic nuclear forces, we have developed a core Gamow shell model which can describe resonance and continuum properties of loosely-bound or unbound nuclear systems. To describe properly resonance and continuum, the Berggren representation has been employed, which treats bound, resonant and continuum states on equal footing in a complex-momentum (complex-k) plane. To derive the model-space effective interaction based on realistic forces, the full Qˆ-box folded-diagram renormalization has been, for the first time, extended to the nondegenerate complex-k space. The CD-Bonn potential is softened by using the V_low-k method. Choosing ¹⁶O as the inert core, we have calculated sd-shell neutron-rich oxygen isotopes, giving good descriptions of both bound and resonant states. The isotopes ^25,26O are calculated to be resonant even in their ground states.

Original language	English
Pages (from-to)	227-232
Number of pages	6
Journal	Physics Letters B
Volume	769
DOIs	https://doi.org/10.1016/j.physletb.2017.03.054
State	Published - Jun 10 2017
Externally published	Yes

Funding

This work has been supported by the National Key Basic Research Program of China under Grant No. 2013CB834402; the National Natural Science Foundation of China under Grants No. 11235001, No. 11320101004 and No. 11575007.

Keywords

Continuum
Gamow shell model
Realistic nuclear forces
Resonance
Spectra
Unstable nuclei

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10.1016/j.physletb.2017.03.054

Cite this

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title = "Resonance and continuum Gamow shell model with realistic nuclear forces",

abstract = "Starting from realistic nuclear forces, we have developed a core Gamow shell model which can describe resonance and continuum properties of loosely-bound or unbound nuclear systems. To describe properly resonance and continuum, the Berggren representation has been employed, which treats bound, resonant and continuum states on equal footing in a complex-momentum (complex-k) plane. To derive the model-space effective interaction based on realistic forces, the full Qˆ-box folded-diagram renormalization has been, for the first time, extended to the nondegenerate complex-k space. The CD-Bonn potential is softened by using the Vlow-k method. Choosing 16O as the inert core, we have calculated sd-shell neutron-rich oxygen isotopes, giving good descriptions of both bound and resonant states. The isotopes 25,26O are calculated to be resonant even in their ground states.",

keywords = "Continuum, Gamow shell model, Realistic nuclear forces, Resonance, Spectra, Unstable nuclei",

author = "Sun, {Z. H.} and Q. Wu and Zhao, {Z. H.} and Hu, {B. S.} and Dai, {S. J.} and Xu, {F. R.}",

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AU - Sun, Z. H.

AU - Wu, Q.

AU - Zhao, Z. H.

AU - Hu, B. S.

AU - Dai, S. J.

AU - Xu, F. R.

PY - 2017/6/10

Y1 - 2017/6/10

N2 - Starting from realistic nuclear forces, we have developed a core Gamow shell model which can describe resonance and continuum properties of loosely-bound or unbound nuclear systems. To describe properly resonance and continuum, the Berggren representation has been employed, which treats bound, resonant and continuum states on equal footing in a complex-momentum (complex-k) plane. To derive the model-space effective interaction based on realistic forces, the full Qˆ-box folded-diagram renormalization has been, for the first time, extended to the nondegenerate complex-k space. The CD-Bonn potential is softened by using the Vlow-k method. Choosing 16O as the inert core, we have calculated sd-shell neutron-rich oxygen isotopes, giving good descriptions of both bound and resonant states. The isotopes 25,26O are calculated to be resonant even in their ground states.

AB - Starting from realistic nuclear forces, we have developed a core Gamow shell model which can describe resonance and continuum properties of loosely-bound or unbound nuclear systems. To describe properly resonance and continuum, the Berggren representation has been employed, which treats bound, resonant and continuum states on equal footing in a complex-momentum (complex-k) plane. To derive the model-space effective interaction based on realistic forces, the full Qˆ-box folded-diagram renormalization has been, for the first time, extended to the nondegenerate complex-k space. The CD-Bonn potential is softened by using the Vlow-k method. Choosing 16O as the inert core, we have calculated sd-shell neutron-rich oxygen isotopes, giving good descriptions of both bound and resonant states. The isotopes 25,26O are calculated to be resonant even in their ground states.

KW - Continuum

KW - Gamow shell model

KW - Realistic nuclear forces

KW - Resonance

KW - Spectra

KW - Unstable nuclei

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VL - 769

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JO - Physics Letters B

JF - Physics Letters B

ER -

Resonance and continuum Gamow shell model with realistic nuclear forces

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Keywords

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