First observation of α-cluster states in the 14O + 4He interaction Academic Article uri icon

abstract

  • We measured 14O+4He excitation functions for elastic scattering which demonstrate, for the first time, a well developed α-cluster structure in the proton rich nucleus, 18Ne. We present the excitation energies and estimates of the spins for the dominant resonances using an R-matrix approach. A resonance at 9.2 MeV excitation energy in 18Ne is particularly interesting. The spin-parity of the state is found to be 3- and the α particle reduced width for the state appears to be comparable to the single particle limit. We have found indications for unusually large size of the observed α-cluster configuration. © 2008 The American Physical Society.

author list (cited authors)

  • Fu, C., Goldberg, V. Z., Rogachev, G. V., Tabacaru, G., Chubarian, G. G., Skorodumov, B., ... Tribble, R. E.

citation count

  • 21

publication date

  • June 2008