Phys. Rev. C 76, 064313 (2007) [10 pages]Particle decay of 12Be excited statesReceived 22 June 2007; published 17 December 2007 The breakup of E/A=50 MeV 12Be fragments following inelastic scattering off of hydrogen and carbon target nuclei has been studied. The breakup channels α+8He, 6He+6He, t+9Li, and p+11Li were observed. Two doublets at excitation energies of 12.8 and 15.5 MeV were found for the α+8He channel. A low-energy shoulder in the excitation-energy spectra at 10.2 MeV indicates one or more additional states. This work could not confirm the presence of 6He-6He rotational structure reported by Freer et al. [Phys. Rev. C 63, 034301 (2001)], although possible peaks at excitation energies of 13.5 and 14.5 MeV were found for 6He+6He decay. Significant structure is observed in the excitation-energy spectrum for p+11Li at 25–30 MeV which maybe associated with T=3 analog states. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.76.064313
DOI:
10.1103/PhysRevC.76.064313
PACS:
21.60.Gx, 25.60.-t, 25.70.Ef, 27.20.+n
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