Abstract
A new resonance having a relative decay energy of $~0.6$ MeV has been observed above the two-neutron separation energy in $^{24}\mathrm{O}$ at an excitation energy of $~7.5$ MeV. The new level was found to directly feed the first excited state in $^{23}\mathrm{O}$, an $E=0.045(2)$-MeV resonance, through the measurement of neutron-neutron correlations. Energy level comparisons with $^{23}\mathrm{O}$ suggest that this new level in $^{24}\mathrm{O}$ is dominated by an unpaired neutron in the $\ensuremath{\nu}0{d}_{3/2}$ single-particle orbital coupled to a single hole in the $\ensuremath{\nu}0{d}_{5/2}$ single-particle orbital. Establishment of this two-neutron discrimination technique provides a means for investigating high-lying excited states in neutron-rich nuclei.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
