New Calculations Solve an Alpha Particle Physics Puzzle (IMAGE)
Caption
Theoretical calculations predict a complex excited state (0+) for helium-4 (4He) at the 20.21 MeV energy level. This state involves a coupling of three cluster configurations: hydrogen-3 and a proton, helium-3 and a neutron, and two hydrogen-2 nuclei.
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Image courtesy of W. Nazarewicz
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Image courtesy of W. Nazarewicz
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