Structure and decay correlations of two-neutron systems beyond the dripline

Z. Kohley, T. Baumann, D. Bazin, G. Christian, P. A. De Young, J. E. Finck, R. A. Haring-Kaye, J. Hinnefeld, N. Frank, E. Lunderberg, B. Luther, S. Mosby, W. A. Peters, J. K. Smith, J. Snyder, S. L. Stephenson, M. J. Strongman, A. Spyrou, M. Thoennessen, A. Volya

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

Abstract

The two-neutron unbound systems of 16Be, 13Li, 10He, and 26O have been measured using the Modular Neutron Array (MoNA) and 4 Tm Sweeper magnet setup. The correlations of the 3-body decay for the 6Be and 3Li were extracted and demonstrated a strong correlated enhancement between the two neutrons. The measurement of the 10He ground state resonance from a 14Be(-2p2n) reaction provided insight into previous predictions that wavefunction of the entrance channel, projectile, can influence the observed decay energy spectrum for the unbound system. Lastly, the decay-in-target (DiT) technique was utilized to extract the lifetime of the 26O ground state. The measured lifetime of 4.5+1.1-1.5(stat.)±3(sys.) ps provides the first indication of two-neutron radioactivity.

Original languageEnglish (US)
Article number012033
JournalJournal of Physics: Conference Series
Volume569
Issue number1
DOIs
StatePublished - 2014
Externally publishedYes
Event3rd International Workshop on State of the Art in Nuclear Cluster Physics, SOTANCP 2014 - Yokohama, Japan
Duration: May 26 2014May 30 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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