Dataset referencing 2013CA18
C.Caesar, for the R3B Collaboration
Beyond the neutron drip line: The unbound oxygen isotopes 25O and 26O
NUCLEAR REACTIONS C, Pb(26F, 25O), E=442 MeV/nucleon; C, Pb(27F, 26O), E=414 MeV/nucleon, [26,27F secondary beams from Be(40Ar, X), E=490 MeV/nucleon primary reaction]; measured photon and light-particle spectra, time-of-flight and energy-loss, n(24)O-coin using FRS fragment separator, ALADIN dipole magnet, 4π Crystal ball at GSI facility; neutrons from unbound states detected by LAND neutron detector; two- and three-body relative-energy spectra reconstructed for one- and two-neutron events. 25,26O; deduced levels, ground-state resonances, first excited 2+ resonance in 26O, widths, half-lives. Breit-Wigner fits. Comparison with previous experimental results, and with shell-model calculations based on chiral NN and 3N forces, and residual 3N forces.
RADIOACTIVITY 25O(n)[from C, Pb(26F, 25O), E=442 MeV/nucleon]; 26O(n), (2n)[from C, Pb(27F, 26O), E=442 MeV/nucleon]; measured neutron spectra n(24)O-coin, half-lives of ground-state resonances using LAND detector at GSI facility.
doi: 10.1103/PhysRevC.88.034313