Abstract
Analysis of the two-dimensional Dalitz plot measured in the reaction 14C(π–, pd)X allows us to follow the absorption of pions by cluster 3 p and identify signs of the configuration 3 p + 11Li in the 14C nucleus. The highly excited state of 12,13Be beryllium isotopes with excitation energies E* ≈ 30 MeV and which decay with the emission of hydrogen isotopes is observed for the first time: 12Be* → p + 11Li and 13Be* → d + 11Li.
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Original Russian Text © L.Yu. Korotkova, Yu.B. Gurov, V.S. Karpukhin, S.V. Lapushkin, R.V. Pritula, B.A. Chernyshev, T.D. Shchurenkova, 2016, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2016, Vol. 80, No. 3, pp. 246–249.
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Korotkova, L.Y., Gurov, Y.B., Karpukhin, V.S. et al. Searching for rare cluster configurations of 14C nuclei in the pion absorption reaction. Bull. Russ. Acad. Sci. Phys. 80, 219–222 (2016). https://doi.org/10.3103/S1062873816030199
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DOI: https://doi.org/10.3103/S1062873816030199