EPJ Web of Conferences
Volume 117, 201612th International Conference on Nucleus-Nucleus Collisions 2015
|Number of page(s)||6|
|Section||VII. Equation of State of Neutron-Rich Nuclear Matter, Clusters in Nuclei and Nuclear Reactions|
|Published online||11 May 2016|
High-spin molecular resonances in 12C + 12C
1 Dept. of Mathematical Science, Akita University, Akita 010-8502, Japan
2 RCNP, Osaka University, Ibaraki 567-0047, Japan
Published online: 11 May 2016
Resonances observed in the 12C + 12C collisions are studied with a molecular model. At high spins J = 10–18, a stable dinuclear configuration is found to be an equator-equator touching one. Firstly, normal modes have been solved around the equilibrium, with spin J and K-quantum number being specified for rotation of the whole system. Secondly, with respect to large centrifugal energy, Coriolis coupling has been diagonalized among low-lying 11 states of normal-mode excitations, which brings K-mixing. The analyses of decay widths and excitation functions have been done. The molecular ground state exhibits alignments of the orbital angular momentum and the 12C spins, while some of the molecular excited states exhibit disalignments with small widths. Those results are surprisingly in good agreement with the experiments, which will light up a new physical picture of the highspin 12C + 12C resonances.
© Owned by the authors, published by EDP Sciences - SIF, 2016
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