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Present Status of Alpha-Particle Condensate States in Self-Conjugate 4n Nuclei

Abstract : Low density states near the 3α and 4α breakup threshold in 12C and 16O, respectively, are discussed in terms of the α-particle condensation. Calculations are performed in OCM (Orthogonality Condition Model) and THSR (Tohsaki-Horiuchi-Schuck-Röpke) approaches. The 02+ state in 12C and the 06+ state in 16C 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 06+ state in 16C has a large component of α +12C(02+) configuration, which is another reliable evidence of the state to be of 4α condensate nature. The possibility of the existence of α-particle condensed states in heavier nα nuclei is also discussed.
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Submitted on : Wednesday, October 7, 2009 - 4:01:59 PM
Last modification on : Wednesday, September 16, 2020 - 4:07:54 PM

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Y. Funaki, T. Yamada, H. Horiuchi, G. Röpke, P. Schuck, et al.. Present Status of Alpha-Particle Condensate States in Self-Conjugate 4n Nuclei. International Journal of Modern Physics E, World Scientific Publishing, 2008, 17, pp.2087-2095. ⟨10.1142/S0218301308011148⟩. ⟨in2p3-00422579⟩

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