Clarification of the Three-Body Decay of 12C (12.71 MeV)
Fynbo, H. O. U., Prezado, Y., Bergmann, U. C., Borge, M. J. G., Dendooven, P., Huang, W., . . . Äystö, J. (2003). Clarification of the Three-Body Decay of 12C (12.71 MeV). Physical Review Letters, 91 (8), 082502. doi:10.1103/PhysRevLett.91.082502
Published inPhysical Review Letters
©2003 American Physical Society
Using β decays of a clean source of 12 N produced at the IGISOL facility, we have measured the breakup of the 12 C (12.71 MeV) state into three α particles with a segmented particle detector setup. The high quality of the data permits solving the question of the breakup mechanism of the 12.71 MeV state, a longstanding problem in few-body nuclear physics. Among existing models, a modified sequential model fits the data best, but systematic deviations indicate that a three-body description is needed.