Title

Unbound excited states​ of the N = 16 closed shell nucleus O​­24

Document Type

Article

Publication Date

2015

Publication Title

​Physical Review C

Volume Number

92

Issue Number

3

DOI

10.1103/PhysRevC.92.034316

Abstract

Two low-lying neutron-unbound excited states of24O, populated by proton-knockout reactions on 26F, have been measured using the MoNA and LISA arrays in combination with the Sweeper Magnet at the Coupled Cyclotron Facility at the NSCL using invariant mass spectroscopy. The current measurement confirms the separate identity of two states with decay energies 0.51(5) MeV and 1.20(7) MeV, and provides support for theoretical model calculations, which predict a 2+ first excited state and a 1+higher-energy state. The measured excitation energies for these states, 4.70(15) MeV for the 2+ level and 5.39(16) MeV for the 1+ level, are consistent with previous lower-resolution measurements, and are compared with five recent model predictions.

ISSN

2469-9993

Link Out URL

https://doi.org/10.1103/PhysRevC.92.034316

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