# Martin Freer

Professor Martin Freer is director of the Birmingham Centre for Nuclear Education and Research. His research includes the characterization of alpha-cluster states and nuclear molecules, the latter being a set of states whereby neutrons are exchanged between alpha particles, analogous to atomic molecules. He was awarded the 2010 Rutherford medal for his contribution to the study of nuclear clustering.

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## Rotations of the Hoyle State in Carbon-12

Published November 14, 2011
New scattering experiments provide evidence for the long-suspected existence of an excited rotational state in carbon-$12$, related to a state that’s crucial in stellar fusion reactions.