Alpha cluster structure in 56Ni

Abstract : The inelastic $\alpha$−scattering experiment on 56Ni in inverse kinematics was performed at an incident energy of 50 MeV/u at GANIL. A very high multiplicity for $\alpha$−particle emission was observed with our phase-space limited experimental set-up. The maximum observed multiplicity, which cannot be explained by means of the statistical decay model, amounted to seven. The ideal classical gas model at kT = 3 MeV fairly well reproduced the experimental momentum distribution and multiplicity of alpha particles. This result strongly suggests that an alpha-gas state in 56Ni may be excited via inelastic alpha scattering.
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Submitted on : Tuesday, April 23, 2013 - 4:00:18 PM
Last modification on : Tuesday, February 19, 2019 - 10:00:04 AM

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H. Akimune, M. Fujiwara, J. Gibelin, M.N. Harakeh, N.L. Achouri, et al.. Alpha cluster structure in 56Ni. 10th International Conference on Clustering Aspects of Nuclear Structure and Dynamics, Sep 2012, Debrecen, Hungary. pp.012010, ⟨10.1088/1742-6596/436/1/012010⟩. ⟨in2p3-00817042⟩

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