Five-body resonances of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>8</mml:mn></mml:msup></mml:math>C using the complex scaling method

Myo, Takayuki; Kikuchi, Yoshihiro; Katō, Kiyoshi

doi:10.1103/physrevc.85.034338

Cited by 25 publications

(12 citation statements)

References 51 publications

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“…The emission of a [p 2 1/2 ] 0 pair of protons would be expected to yield correlations more like the heavier systems as [p 2 1/2 ] 0 emission is expected to have a similar phase space as [s 2 1/2 ] 0 [40]. It is possible that the 8 B IAS result is telling us that the wavefunction is dominated by the p 4 3/2 component as predicted in the complex scaling model [41]. However, other models predict the addition of more complex configurations in the mirror nucleus [42].…”

Section: B Momentum Correlationsmentioning

confidence: 98%

Particle decays of levels in N11,12 and O12 investigated with the

Webb¹,

Charity²,

Elson³

et al. 2019

Phys. Rev. C

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Particle-decaying states of the light nuclei 11,12 N and 12 O were studied using the invariant-mass method. The decay energies and intrinsic widths of a number of states were measured, and the momentum correlations of three-body decaying states were considered. A second 2p-decaying 2 + state of 12 O was observed for the first time, and a higher energy 12 O state was observed in the 4p+2α decay channel. This 4p+2α channel also contains contributions from fission-like decay paths, including 6 Beg.s.+ 6 Beg.s.. Analogs to these states in 12 O were found in 12 N in the 2p+ 10 B and 2p+α+ 6 Li channels. The momentum correlations for the prompt 2p decay of 12 Og.s. were found to be nearly identical to those of 16 Neg.s., and the correlations for the new 2 + state were found to be consistent with sequential decay through excited states in 11 N. The momentum correlations for the 2 + 1 state in 12 O provide a new value for the 11 N ground-state energy. The states in 12 N/ 12 O that belong to the A=12 isobaric sextet do not deviate from the quadratic isobaric multiplet mass equation (IMME) form.

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Section: B Momentum Correlationsmentioning

confidence: 98%

Particle decays of levels in N11,12 and O12 investigated with the

Webb¹,

Charity²,

Elson³

et al. 2019

Phys. Rev. C

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“…In the picture consisting of 4 He and four valence nucleons, we analyze the He isotopes and their mirror nuclei with the 4 He +N + N + N + N five-body model [13][14][15]. We solve the motion of multivalence nucleons around 4 He in the cluster orbital shell model (COSM) [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…In our previous works of neutron-rich He isotopes and their mirror proton-rich nuclei [13][14][15]19], we discussed the isospin symmetry in 7 He and 7 B with the 4 He +N + N + N model [19]. The isospin-symmetry breaking occurs in their ground states for the mixing of 2 + states of the A = 6 subsystems.…”

Section: Introductionmentioning

confidence: 99%

Five-body resonances in He8 and C8 using the complex scaling method

Myo

Odsuren²,

Katō³

2021

Phys. Rev. C

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We study many-body resonances in the neuron-rich 8 He and the mirror proton-rich 8 C using the 4 He +N + N + N + N five-body model with the isospin T = 2 system. Resonances are described with the complex energy eigenvalues as the Gamow states using the complex scaling method. In 8 He, we obtain five states in which four states are resonances, and in 8 C all five states are resonances. We discuss the isospin-symmetry breaking dynamically induced by the Coulomb interaction in the energy spectra and decay widths of the resonances in two mirror nuclei. We predict the resonance energies and decay widths for the future experiments. We also investigate the configurations of valence nucleons above 4 He in two nuclei with the j j coupling scheme, and all the states dominantly have the p-shell configurations. From the configuration mixing, 8 He and 8 C give the similar results, which indicates the good symmetry in two nuclei.

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“…Hence, we can calculate expectation values of physical quantities for resonances [6]. Recently, resonances decaying up to five-body systems have been studied in the CSM and successfully compared with experiments [7,8].…”

Section: Introductionmentioning

confidence: 99%

Decomposition of scattering phase shifts and reaction cross sections using the complex scaling method

et al. 2014

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We apply the complex scaling method to the calculation of scattering phase shifts and extract the contributions of resonances in a phase shift and a cross section. The decomposition of the phase shift is shown to be useful in understanding the roles of resonant and nonresonant continuum states. As examples, we apply this method to several two-body systems: (i) a schematic model with the Gyarmati potential, which produces many resonances, (ii) the α-α system, which has a Coulomb barrier potential in addition to an attractive nuclear interaction, and (iii) the α-n system, which has no barrier potential. Using different kinds of potentials, we discuss the reliability of this method to investigate the resonance structure in the phase shifts and cross sections.

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Five-body resonances of8C using the complex scaling method

Cited by 25 publications

References 51 publications

Particle decays of levels in N11,12 and O12 investigated with the

Particle decays of levels in N11,12 and O12 investigated with the

Five-body resonances in He8 and C8 using the complex scaling method

Decomposition of scattering phase shifts and reaction cross sections using the complex scaling method

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