Evidence for Triangular D_3h Symmetry in 12C

D. J. Marin-Lambarri, R. Bijker, M. Freer +4

We report a measurement of a new high spin Jp = 5- state at 22.4(0.2) MeV in 12C which fits very well to the predicted (ground state) rotational band of an oblate equilateral trian…