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Correlated-basis description of alpha-cluster and delocalized 0(+) states in O-16

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Title: Correlated-basis description of alpha-cluster and delocalized 0(+) states in O-16
Authors: Horiuchi, Wataru1 Browse this author →KAKEN DB
Suzuki, Y. Browse this author
Authors(alt): Horiuchi, W.1
Issue Date: 16-Jan-2014
Publisher: American Physical Society
Journal Title: Physical Review C
Volume: 89
Issue: 1
Start Page: 011304-1
End Page: 011304-5
Publisher DOI: 10.1103/PhysRevC.89.011304
Abstract: A five-body calculation of C-12+ n + n + p + p is performed to take a step towards solving an outstanding problem in nuclear theory: the simultaneous and accurate description of the ground and first excited 0(+) states of O-16. The interactions between the constituent particles are chosen consistently with the energies of bound subsystems, especially C-12+ n, C-12+ p, and the alpha particle. The five-body dynamics is solved with the stochastic variational method on correlated Gaussian basis functions. No restriction is imposed on the four-nucleon configurations except for the Pauli principle excluding the occupied orbits in C-12. The energies of both the ground and first excited states of O-16 are obtained in excellent agreement with experiment. Analysis of the wave functions indicates a spatially localized alpha-particle-like cluster structure for the excited state and a shell-model-like delocalized structure for the ground state.
Rights: ©2014 American Physical Society
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 堀内 渉

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