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Resonances in C14 observed in the He4(10Be,α)Be10 reaction

Abstract : The α(Be10,α)Be10 resonant scattering reaction has been measured at nine Be10 beam energies from 25 to 48 MeV, scanning out resonances in C14 from excitation energies of 13 to 24 MeV. Angular distribution measurements were used to assign the spin and parity of 5− to resonances at Ex=18.82(2) and 19.67(2) MeV and 6+ at Ex=20.80(2) MeV. The data also strongly indicate a 3− resonance at 17.32(2) MeV. The systematic uncertainty on the excitation energies is 175 keV. An R-matrix analysis has been performed for the excitation energy range 16.5 to 22 MeV. The data are discussed in terms of cluster bands in C14.
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Contributor : Sandrine Guesnon <>
Submitted on : Thursday, November 20, 2014 - 10:00:38 AM
Last modification on : Tuesday, February 19, 2019 - 9:38:02 AM



M. Freer, J. D. Malcolm, N.L. Achouri, N. I. Ashwood, D. W. Bardayan, et al.. Resonances in C14 observed in the He4(10Be,α)Be10 reaction. Physical Review C, American Physical Society, 2014, 90 (5), pp.054324. ⟨10.1103/PhysRevC.90.054324⟩. ⟨in2p3-01084779⟩



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