Decay of $^{10}$C excited states above the 2$p$ + 2$\alpha $ threshold and the contribution from ``democratic'' two-proton emission

POSTER

Abstract

The decay of $^{10}$C excited states to the 2$p$ +2$\alpha $ exit channel has been studied using an E/A = 10.7 MeV $^{10}$C beam inelastically scattered from a $^{9}$Be target. Levels associated with the two-proton decay to the ground state of $^{8}$Be have been observed. These include states at 5.18 and 6.54 MeV which decay by sequential two-proton emission through the long-lived intermediate state of $^{9}$B. In addition, states at 5.3 and 6.57 MeV were found in which there is no long-lived intermediate state between the two proton emissions. For the 6.57 MeV state, the two protons are preferably emitted on the same side of the decaying $^{10}$C fragment. Furthermore, preliminary evidence will be presented for an 8 MeV state decaying through the second excited state of $^{9}$B.

Authors

  • Kevin Mercurio

    • Department of Physics, Washington University in St. Louis
  • R.J. Charity

    • Department of Chemistry, Washington University in St. Louis
  • L.G. Sobotka

    • Departments of Physics and Chemistry, Washington University in St. Louis
  • J. Elson

    • Department of Chemistry, Washington University in St. Louis
  • M. Famiano

    • Department of Physics, Western Michigan University
  • A. Banu

  • C. Fu

    • Cyclotron Institute, Texas A\&M University
  • L. Trache

    • Cyclotron Institute, Texas A\&M University
  • R.E. Tribble

    • Cyclotron Institute, Texas A\&M University