Abstract
The 15.11 MeV energy level in12C was excited by bremsstrahlung. The scattered photons were detected with a total γ absorption NaI(TI) spectrometer set at 135° to the bremsstrahlung beam. The following level parameters were obtained: σ 0 a =(17.9±0.6) barn, Γtot=(69±4) eV and σint=(1.86±0.12) mb MeV. The branching ratio to the first excited state and the ground state is Γγ1/Γγ0=(3.6±1.0)%.
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The experiment was performed at the 300 MeV electron linear accelerator at Mainz.
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Mehlig, D., Czock, K.H. Scattering of photons at the 15.11 MeV energy level in12C. Acta Physica 41, 55–61 (1976). https://doi.org/10.1007/BF03157430
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DOI: https://doi.org/10.1007/BF03157430