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Correlated-basis description of alpha-cluster and delocalized 0(+) states in O-16
| 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 |
| URI: | http://hdl.handle.net/2115/55354 |
| 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)
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Submitter: 堀内 渉
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