Resonance and continuum Gamow shell model with realistic nuclear forces

Sun, Z. H.; Wu, Qiang; Zhao, Zhonghai; Hu, B.; Dai, Sijie; Fang, Xu

doi:10.1016/j.physletb.2017.03.054

Cited by 56 publications

(126 citation statements)

References 42 publications

Supporting

Mentioning

125

Contrasting

Order By: Relevance

“…For instance, the USDB shell model (SM) [4] predicts an excited state with J π = 1 2 + at about 3.3 MeV above the ground state (g.s. ), in relative agreement with the continuum SM (CSM) [5] and the Gamow shell model (GSM) [6,7]. The CSM and the GSM also predict another narrow state with J π = 5 2 + at E ≈ 4.5 MeV.…”

Section: Introductionsupporting

confidence: 66%

Search for excited states in O25

et al. 2017

View full text Add to dashboard Cite

Section: Introductionsupporting

confidence: 66%

Search for excited states in O25

et al. 2017

View full text Add to dashboard Cite

“…These results suggest that, in general, resonances bear a strong coupling to the non-resonant continuum, with the induced configuration mixing becoming more and more important when the width increases. Thus, coupling to continuum should be considered properly in the treatment of nuclei close to drip-line [25,[29][30][31]. Trineutron results have been obtained without truncations.…”

Section: Calculations and Discussionmentioning

confidence: 99%

Ab initio no-core Gamow shell-model calculations of multineutron systems

Michel

et al. 2019

Phys. Rev. C

View full text Add to dashboard Cite

The existence of multi-neutron systems has always been a debatable question. Indeed, both internucleon correlations and a large continuum coupling occur in these states. We then employ the ab-initio no-core Gamow shell model to calculate the resonant energies and widths of the trineutron and tetraneutron systems with realistic interactions. Our results indicate that trineutron and tetraneutron are both unbound and bear broad widths. The calculated energy and width of tetraneutron are also comparable with recent experimental data. Moreover, our calculations suggest that the energy of trineutron is lower than that of tetraneutron, while its resonance width is also narrower. This strongly suggests that trineutron is more likely to be experimentally observed than tetraneutron. We thus suggest experimentalists to search for trineutron at low energy.

show abstract

“…It arises from an order by order expansion of contact terms in the EFT interaction, whose parameters are fitted on the experimental data associated to the structure of proton-rich nuclei [61]. The EFT interaction possesses the overall features of realistic nucleon-nucleon interactions [29], and is non-local in the short-range region, contrary to the FHT interaction. We will see, in fact, that the results of the EFT interaction are closer to experimental data than those provided by the FHT interaction.…”

Section: Theoretical Modelmentioning

confidence: 99%

Description of proton-rich nuclei in the A≈20 region within the Gamow shell model

Michel

Fang

et al. 2019

Phys. Rev. C

View full text Add to dashboard Cite

The Gamow shell model is utilized to describe nuclear observables of the weakly bound and resonance isotonic states of 16 O at proton drip-line. It is hereby shown that the presence of continuum coupling leads to complex Coulomb contributions in the spectrum of these isotones. The necessity to include the effects of three-body forces, either by a direct calculation or by adding an A-dependence to the nucleon-nucleon interaction, already noticed in other theoretical models, is pointed out. It is also demonstrated that our approach is predictive for reaction observables.

show abstract

Resonance and continuum Gamow shell model with realistic nuclear forces

Cited by 56 publications

References 42 publications

Search for excited states in O25

Search for excited states in O25

Ab initio no-core Gamow shell-model calculations of multineutron systems

Description of proton-rich nuclei in the A≈20 region within the Gamow shell model

Contact Info

Product

Resources

About