Mon·Jul 4, 2016Monday·July 4, 2016

1. 01*

   Cluster Decay of the High-lying excited states in ${}^{14}$C

   Z.Y. Tian · Y.L. Ye🇨🇳 · Z.H. Li · C.J. Lin🇺🇸 · Q.T. Li🇨🇳 · Y.C. Ge🇨🇳 · J.L. Lou🇨🇳 · W. Jiang🇨🇳 · J. Li🇨🇳 · Z.H. Yang · J. Feng · P.J. Li and 14 other authors

   A cluster-transfer experiment of ${}^9\mathrm{Be}{(}^9\mathrm{Be}{,}^{14}\mathrm{C}\to \alpha {+}^{10}\mathrm{Be})\alpha$ at an incident energy of 45 MeV was carried out in order to investigate the molecular structure in high-lying resonant states in ${}^{14}$C. This reaction is of extremely large $Q$-value, making it an excellent case to select the reaction mechanism and the final states in outgoing nuclei. The high-lying resonances in ${}^{14}$C are reconstructed for three sets of well discriminated final states in ${}^{10}$Be. The results confirm the previous decay measurements with clearly improved decay-channel selections and show also a new state at 23.5(1) MeV. The resonant states at 22.4(3) and 24.0(3) MeV decay primarily into the typical molecular states at about 6 MeV in ${}^{10}$Be, indicating a well developed cluster structure in these high-lying states in ${}^{14}$C. Further measurements of more states of this kind are suggested.

   nucl-exCPC(2016)·24 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.