Akademik Veri Yönetim Sistemi
Physical Review Letters, cilt.133, sa.7, 2024 (SCI-Expanded)
Excited states in B10 were populated with the B10(p,p′γ)B10∗ reaction at 8.5 MeV and their γ decay was investigated via coincidence γ-ray spectroscopy. The emitted γ rays were measured using large-volume LaBr3:Ce and CeBr3 detectors placed in anti-Compton shields. This allowed the observation of weak γ-ray transitions, such as the M3 transition between the Jπ,T=0+,1 isobaric analog state (IAS) and the Jπ,T=3+,0 ground state and the E2 transition between the Jπ,T=21+,0 state and the IAS, i.e., performing measurements of branching ratios at the level of λ≥10-4. For the first time in B10, the competing M1 and M3 transitions from the decay of the IAS have been observed in a γ spectroscopy experiment. The experimental results are compared with ab initio no-core shell model calculation using the newest version of the local position-space chiral N3LO nucleon-nucleon interaction. The calculations reproduce correctly the ordering of the bound states in B10, and are in reasonable agreement with the observed branching ratios and reduced transition probabilities.