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Resonance States and Alpha Condensation in 12C and 16O |
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| Authors: | Y. Funaki T. Yamada H. Horiuchi G. Röpke P. Schuck A. Tohsaki |
| Affiliation: | 1. Nishina Center for Accelerator-Based Science, The Institute of Physical and Chemical Research (RIKEN), Wako, 351-0198, Japan 2. Laboratory of Physics, Kanto Gakuin University, Yokohama, 236-8501, Japan 3. Research Center for Nuclear Physics (RCNP), Osaka University, Osaka, 567-0047, Japan 4. Institut für Physik, Universit?t Rostock, 18051, Rostock, Germany 5. Institut de Physique Nucléaire, 91406, Orsay Cedex, France |
| Abstract: | Low density states near the 3α and 4α breakup thresholds in 12C and 16O, respectively, are discussed in terms of the α-particle condensation. Calculations are performed in Orthogonality Condition Model and Tohsaki–Horiuchi–Schuck–Röpke approaches. The ${0_2^+}$ state in 12C and the ${0_6^+}$ state in 16O are shown to have dilute density structures and give strong enhancement of the occupation of the S-state c.o.m. orbital of the α-particles. The possibility of the existence of α-particle condensed states in heavier nα nuclei is also discussed. |
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