Mass-15 nuclei and predicting narrow states beyond the proton drip line

Fraser, P. R.; Amos, K.; Canton, L.; Karataglidis, S.; Knijff, D. van der; Svenne, J. P.

doi:10.1103/physrevc.100.024609

Cited by 8 publications

(56 citation statements)

References 43 publications

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“…The state occupancies were found using an harmonic oscillator (HO) approach with an oscillator length of 2.0 fm (hω ∼ 10.25 MeV). In the case of 6 He, a shell model in which all 6 nucleons are considered active [20,21] has been used. A no-core calculation was made by using a single particle basis consisting of all single-nucleon states from the 0s-shell up to, and including, the 0h1 f 2 p shell.…”

Section: Shell and Skyrme-hartree-fock Structuresmentioning

confidence: 99%

“…For lower incident energies, other scattering processes may need to be considered. At very low energies, channel coupling between excited states of the target are important in matching theoretical results to observable data [5,6], and may even dominate. For energies coinciding with those of giant resonances, virtual excitation of such resonances has been shown to play an important role [7,8].…”

Section: Introductionmentioning

confidence: 95%

“…In [13], the vector analyzing power from the elastic scattering of radioactive 6 He ions from a polarized hydrogen target was measured. Data were taken at 71A MeV and compared with diverse models for the scattering.…”

Section: Introductionmentioning

confidence: 99%

“…Measurement of spin observables provide added sensitivity, to that provided by cross-section data analyses, on the structural characteristics of radioactive ions. Hence, we consider both cross section and analyzing power from 6 He( p, n) scattering to the IAS in 6 Li.…”

Section: Introductionmentioning

confidence: 99%

“…Skyrme-Hartree-Fock (SHF) and shell-model wave models of structure have been used in the calculations of these reactions. Finally, calculated results of elastic scattering of 6 He and of the RIB reaction, p( 6 He, 6 Li)n are presented. In those calculations, structure input was defined by a large basis, nocore, shell model.…”

Section: Introductionmentioning

confidence: 99%

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Charge exchange (p,n) reaction to isobaric analogue states of select nuclei

2020

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Using a modified version of Jacques Raynal's program, DWBA98, we have analyzed cross-section data from a select set of charge exchange ( p, n) reactions leading to isobaric analogue states of the target ground states. The Melbourne g-matrix model of the N N interaction has been used to specify both the relevant optical model potentials and the transition interactions. The formulation used defines transition amplitudes in terms of nucleon state occupancies in the ground states of the targets. Skyrme-Hartree-Fock and shell-model structures have been used for the input spectroscopic information. Targets of 92 Zr, 42,48 Ca, 208 Pb, and 6 He have been considered specifically.

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Section: Shell and Skyrme-hartree-fock Structuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Charge exchange (p,n) reaction to isobaric analogue states of select nuclei

2020

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Clusters in light nuclei: history and recent developments

Lombardo,

Dell’Aquila

2023

Riv. Nuovo Cim.

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In this review, we discuss recent advancements in the study of clustering phenomena occurring in light nuclei, and their influence on nuclear structure, dynamics, and astrophysics. In the introduction, we outline the historical steps leading to the concept of $$\alpha $$ α -clusterization in nuclei and provide a comprehensive description of the evolution of nuclear models capable to describe clustering aspects in nuclear systems and of the main experiments and discoveries leading to the development of this research field. We also describe some spectroscopic techniques that are used to establish the clustered nature of a given nuclear state. Some relevant experimental and theoretical findings recently reported both in experimental and theoretical works are discussed in the text. We put emphasis on recent achievements and remaining problems in the description of the structure of light isotopes, from helium to neon, including both self- and non-self-conjugate nuclei. Particular attention to the implication in the nuclear astrophysics context and to clustering effects in the dynamics of nuclear reactions is pursued all along the review.

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Modelling nuclei far from stability with a multichannel approach

Fraser

Amos

Canton

et al. 2020

J. Phys.: Conf. Ser.

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Recently, new high-precision data reconfirmed the existence of narrow resonances in the p+14O cross section, first predicted by the multi-channel algebraic scattering (MCAS) theory of light-mass, low-energy scattering and later found by other experimental means. Prompted by this and a decade of extension to the method, we have updated the original MCAS study. Additionally, we use MCAS to interpret the low-energy spectrum of 19 F, which has an interesting structure that appears to stem from clusterisation, and we compare the results of several types. As only early, small-basis shell model investigations of this spectrum exist, we also perform a complete (0 + 2)ħω calculation. MCAS is well suited to these studies, having the advantage of accounting for the Pauli principle between the nucleons of the clusters, and so spurious states of the compound nucleus are removed.

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Mass-15 nuclei and predicting narrow states beyond the proton drip line

Cited by 8 publications

References 43 publications

Charge exchange (p,n) reaction to isobaric analogue states of select nuclei

Charge exchange (p,n) reaction to isobaric analogue states of select nuclei

Clusters in light nuclei: history and recent developments

Modelling nuclei far from stability with a multichannel approach

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