Dissociation of relativistic $^{10}$C nuclei in nuclear track emulsion
  Dissociation of 1.2 A GeV $^{10}$C nuclei in nuclear track emulsionis is studied.   It is shown that most precise angular measurements provided by this technique play a crucial role in the restoration of the excitation spectrum of the 2$\alpha$+2p system. Strong contribution of the cascade process $^{10}$C$\rightarrow ^9$B$\rightarrow ^8$Be identified. 
D.A. Artemenkov, S.S. Alikulov, R.R. Kattabekov, K.Z. Mamatkulov, N.K.   Kornegrutsa, D.O. Krivenkov, and P.I. Zarubin
nucl-ex