Continuum strength of isoscalar transiton of α + <sup>40</sup>Ca in <sup>44</sup>Ti

Nakao, Makoto; Umehara, Hiroaki; Nakamoto, R.; Ebata, Shuichiro; Itô, Makoto

doi:10.1080/00223131.2020.1769765

Cited by 3 publications

(1 citation statement)

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“…In recent years, the Ti isotopes have been investigated theoretically and experimentally from the perspective of the α-cluster structure [16,[23][24][25]. In the studies of S. Bailey et al [23,24], a novel technique makes use of the continuous wavelet transform and machine learning to identify α-clustered states in 44,48,52 Ti through 4 He( 40,44,48 Ca, α) resonant scattering measurements; such studies indicate the presence of the α+ 40 Ca and α+ 48 Ca structures in high-lying states of 44 Ti and 52 Ti, respectively.…”

Section: Introductionmentioning

confidence: 99%

Search for the $α$ + core structure in the ground state bands of $22 \leq Z \leq 42$ even-even nuclei

Souza,

Miyake

2021

Preprint

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A systematic analysis of the α + core structure is performed in the ground state bands of even-even nuclei of the 22 ≤ Z ≤ 42 region in terms of the Local Potential Model. The α + core interaction is described by the nuclear potential of (1 + Gaussian)×(W.S. + W.S. 3 ) shape with 2 free parameters. Properties such as energy levels, reduced α-widths, B(E2) transition rates and rms charge radii are calculated and compared with experimental data. A good agreement with the experimental data is obtained in general, even for the nuclei without the α + {doubly closed shell core} configuration. The analysis of the selected nuclei in the 22 ≤ Z ≤ 42 region indicates that 44 Ti and 94 Mo have a greater α-clustering degree in comparison with their respective neighboring nuclei of this set. In addition, the model points to the existence of nuclei without the α + {doubly closed shell core} configuration with a significant α-clustering degree compared to 44 Ti, 60 Zn, and 94 Mo. The study shows that the α + core approach is satisfactorily applicable to nuclei other than those with αclustering above double-shell closures.

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Section: Introductionmentioning

confidence: 99%

Search for the $α$ + core structure in the ground state bands of $22 \leq Z \leq 42$ even-even nuclei

Souza,

Miyake

2021

Preprint

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Continuum level density calculated under the absorbing boundary condition

Maeda

Taniguchi

Fumimoto

et al. 2022

Progress of Theoretical and Experimental Physics

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We have applied a method of absorbing boundary condition (ABC) to calculations of the level density (LD) and the continuum level density (CLD). The results of LD and CLD in the ABC calculation are compared with those calculated by complex scaling method (CSM). The energy dependence of LD in ABC shows the similar behavior to those in CSM around the resonance energy but they are prominently different especially at the lower energy region due to the different sequence of the energy eigenvalues in the complex plane. The phase shift for two-body scattering problems is also derived from CLD. The phase shift obtained by ABC is almost the same as that calculated from CSM although the ABC method seems to be a little inferior to the CSM calculation in the numerical precision. The improvement of the numerical precision in ABC is also discussed.

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Search for the α + core structure in the ground state bands of 22≤Z≤42 even-even nuclei

Souza

Miyake

2021

Phys. Rev. C

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Continuum strength of isoscalar transiton of α + ⁴⁰Ca in ⁴⁴Ti

Cited by 3 publications

References 48 publications

Search for the $α$ + core structure in the ground state bands of $22 \leq Z \leq 42$ even-even nuclei

Search for the $α$ + core structure in the ground state bands of $22 \leq Z \leq 42$ even-even nuclei

Continuum level density calculated under the absorbing boundary condition

Search for the α + core structure in the ground state bands of 22≤Z≤42 even-even nuclei

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Continuum strength of isoscalar transiton of α + 40Ca in 44Ti

Cited by 3 publications

References 48 publications

Search for the $α$ + core structure in the ground state bands of $22 \leq Z \leq 42$ even-even nuclei

Search for the $α$ + core structure in the ground state bands of $22 \leq Z \leq 42$ even-even nuclei

Continuum level density calculated under the absorbing boundary condition

Search for the α + core structure in the ground state bands of 22≤Z≤42 even-even nuclei

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Continuum strength of isoscalar transiton of α + ⁴⁰Ca in ⁴⁴Ti