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  Haigh, P.; Ashwood, N.I.; Bloxham, T.; Curtis, N.; Freer, M.; Price, D.; Ziman, V.; Bohlen, H.G.; Kokalova, Tz.; Schulz, Ch.; von Oertzen, W.; Wheldon, C.; Catford, W.; Harlin, C.: Decay width measurements of excited states in ¹⁴C. Journal of Physics: Conference Series 111 (2008), p. 012020/1-6

10.1088/1742-6596/111/1/012020

Abstract:
Various excited states in ¹⁴C, above the α-decay threshold, are believed to posses a geometric arrangement of three α-particles covalently bound by the two delocalised valence neutrons. The ¹²C(¹⁶O,¹⁴O)¹⁴C^* reaction was studied at a beam energy of 234 MeV, at the ISL facility at HMI Berlin. The ¹⁴C recoil break-up fragments were measured in coincidence using a double sided silicon strip detector array comprised of four detectors at backward angles. A complete kinematic reconstruction of the reaction was performed to reconstruct the ¹⁴C^* \rightarrow ¹⁰Be + α and ¹⁴C^* \rightarrow ¹³C + n decay channels and the branching ratios of these decays were calculated.