# 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.

http://hal.in2p3.fr/in2p3-00817042
Contributor : Michel Lion <>
Submitted on : Tuesday, April 23, 2013 - 4:00:18 PM
Last modification on : Tuesday, February 19, 2019 - 10:00:04 AM

### Citation

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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