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

49 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.

Funders	Funder number
National Natural Science Foundation of China	11320101004, 11235001, 11575007
National Basic Research Program of China (973 Program)	2013CB834402

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

SP - 227

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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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Funding

Keywords

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