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Exclusive decay study of the 16.62 MeV (2-, T=1) resonance in 12C

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The 3 alpha decay of the 16.62 MeV (2(-), T = 1) resonance in C-12 has been studied for nearly a century starting with one of the first nuclear reaction studies at the Cavendish Laboratory in the 1930s. In the hitherto latest study published a decade ago a model based on earlier work from the 1960s was found to give a good account of a set of inclusive data. This model describes the decay as an l = 3 alpha-particle populating the 2(+) state of Be-8. Here we provide new exclusive data on the 3 alpha decay of the 16.62 MeV resonance, and demonstrate that the decay is best described by a model with predominantly l = 1 emission with an admixture of l = 3. (C) 2021 The Author(s). Published by Elsevier B.V.

Original languageEnglish
Article number136857
JournalPhysics Letters B: Particle Physics, Nuclear Physics and Cosmology
Volume825
Number of pages5
ISSN0370-2693
DOIs
Publication statusPublished - 10 Feb 2022

    Research areas

  • Collective levels, Breakup and momentum distributions, Multifragment emission and correlations, ENERGY CROSS-SECTIONS, FINAL-STATE, B-11(P, BORON, DISINTEGRATION, ELEMENTS

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