Abstract
Recently a six-alpha chain state has been discovered in 24Mg. The Bloch-Brink cranked cluster model shows that linear chains of alpha particles are associated with stable minima in the potential-energy surface for all 4 N-nuclei. Experimental candidates in 8Be, 12C and 16O have already been identified. Using a Brink-Boeker effective interaction, and allowing free variation of all parameters, we calculate the geometric arrangements and energies of the lowest alpha-chain states. These configurations are then cranked to predict the maximum angular momenta and the excitation energies that they can sustain. We conclude that states similar to that in 24Mg should also be accessible to experimental investigation in other nuclei.
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