Evidence for a new C12 state at 13.3 MeV

  • M. Freer
  • , S. Almaraz-Calderon
  • , A. Aprahamian
  • , N. I. Ashwood
  • , M. Barr
  • , B. Bucher
  • , P. Copp
  • , M. Couder
  • , N. Curtis
  • , X. Fang
  • , F. Jung
  • , S. Lesher
  • , W. Lu
  • , J. D. Malcolm
  • , A. Roberts
  • , W. P. Tan
  • , C. Wheldon
  • , V. A. Ziman

Research output: Contribution to journalArticlepeer-review

Abstract

The two reactions C12(He4,He4+He4+He4)He4 and Be9(He4, He4+He4+He4)n were measured using an array of four double-sided strip detectors. Excited states in C12 were reconstructed filtered by the condition that the α-decay proceeded via the Be8 ground state. In both measurements, evidence was found for a new state at 13.3(0.2) MeV with a width 1.7(0.2) MeV. Angular correlation measurements from the C12(He4, He4+He4+He4)He4 reaction indicates that the state may have Jπ=4+. © 2011 American Physical Society.
Original languageEnglish
Article number034314
JournalPhysical Review C - Nuclear Physics
Volume83
Issue number3
DOIs
StatePublished - Mar 15 2011

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