Magic Numbers in Exotic Nuclei and Spin-Isospin Properties of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">NN</mml:mi></mml:math>Interaction

Otsuka, Takaharu; Fujimoto, Rintaro; Utsuno, Yutaka; Brown, B. A.; Honma, Michio; Mizusaki, T.

doi:10.1103/physrevlett.87.082502

Cited by 651 publications

(417 citation statements)

References 18 publications

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“…Several theoretical studies have then been carried out to try to identify the mechanism behind the variation of single-particle energies. In particular, the role of the monopole components of the spin-isospin and tensor interaction has been pointed out, the latter producing an attractive/repulsive effect for two unlike nucleons with opposite/aligned spin orientation [28,29]. By using the spin-tensor decomposition of the interaction, the interplay between the tensor force and other components of the neutron-proton interaction has been investigated [30].…”

Section: Effective Single-particle Energiesmentioning

confidence: 99%

Evolution of single-particle states beyond132Sn

et al. 2013

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We have performed shell-model calculations for the two one valence-neutron isotones 135 Te and 137 Xe and the two one valence-proton isotopes 135,137 Sb. The main aim of our study has been to investigate the evolution of single-particle states with increasing nucleon number. To this end, we have focused attention on the spectroscopic factors and the effective single-particle energies. In our calculations, we have employed a realistic low-momentum two-body effective interaction derived from the CD-Bonn nucleon-nucleon potential that has already proved quite successful in describing the spectroscopic properties of nuclei in the 132 Sn region. Comparison shows that our results reproduce very well the available experimental data. This gives confidence in the evolution of the single-particle states predicted by the present study.

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Section: Effective Single-particle Energiesmentioning

confidence: 99%

Evolution of single-particle states beyond132Sn

et al. 2013

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“…also Ref. [68]). In this work, a specific and strong effect induced by the proton-neutron tensor force on the evolution of the single-particle states as a function of the neutron excess has been pointed out.…”

Section: Early Attempts and General Considerationsmentioning

confidence: 99%

Tensor interaction in mean-field and density functional theory approaches to nuclear structure

Sagawa

Colò

2014

Progress in Particle and Nuclear Physics

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The importance of the tensor force for nuclear structure has been recognized long ago. Recently, the interest for this topic has been revived by the study of the evolution of nuclear properties far from the stability line. However, in the context of the effective theories that describe medium-heavy nuclei, the role of the tensor force is still debated. This review focuses on ground-state properties like masses and deformation, on single-particle states, and on excited vibrational and rotational modes. The goal is to assess which properties, if any, can bring clear signatures of the tensor force within the mean-field or density functional theory framework. It will be concluded that, while evidences for a clear neutron-proton tensor force exist despite quantitative uncertainties, the role of the tensor force among equal particles is less well established.

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“…These observation have been explained by considering tensor interactions, three-body interaction, etc. [12]. Large quadrupole collectivity in 32,34,36,38 Si [10] indicates a large fp-shell intruder component in its 2 + 1 excited state.…”

Section: Introductionmentioning

confidence: 99%

Ground-state configuration of neutron-rich Al35 via Coulomb breakup

Chakraborty¹,

Pramanik²,

Aumann³

et al. 2017

Phys. Rev. C

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The ground-state configuration of 35 Al has been studied via Coulomb dissociation (CD) using the LAND-FRS setup (GSI, Darmstadt) at a relativistic energy of ∼403 MeV/nucleon. The measured inclusive differential CD cross section for 35 Al, integrated up to 5.0 MeV relative energy between the 34 Al core and the neutron using a Pb target, is 78(13) mb. The exclusive measured CD cross section that populates various excited states of 34 Al is 29(7) mb. The differential CD cross section of 35 Al → 34 Al + n has been interpreted in the light of a direct breakup model, and it suggests that the possible ground-state spin and parity of 35 Al could be, tentatively, 1/2 + or 3/2 + or 5/2 + . The valence neutrons, in the ground state of 35 Al, may occupy a combination of either l = 3,0 or l = 1,2 orbitals coupled with the 34 Al core in the ground and isomeric state(s), respectively. This hints of a particle-hole configuration of the neutron across the magic shell gaps at N = 20,28 which suggests narrowing the magic shell gap. If the 5/2 + is the ground-state spin-parity of 35 Al as suggested in the literature, then the major ground-state configuration of 35 Al is a combination of 34 Al(g.s.; 4 − ) ⊗ ν p 3/2 and 34 Al(isomer; 1 + ) ⊗ ν d 3/2 states. The result from this experiment has been compared with that from a previous knockout measurement and a calculation using the SDPF-M interaction.

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Magic Numbers in Exotic Nuclei and Spin-Isospin Properties of theNNInteraction

Cited by 651 publications

References 18 publications

Evolution of single-particle states beyond132Sn

Evolution of single-particle states beyond132Sn

Tensor interaction in mean-field and density functional theory approaches to nuclear structure

Ground-state configuration of neutron-rich Al35 via Coulomb breakup

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