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Bottoni, S. et al, Gadea, A., & Perez-Vidal, R. M. (2025). Investigating the structure of 11B using particle-γ coincidences. Nucl. Phys. A, 1062, 123138–4pp.
Abstract: The structure of 11B was investigated at Legnaro National Laboratories of INFN using the 6Li(6Li,py) fusion-evaporation reaction. Emitted protons feeding excited states of 11B were detected by the GALTRACE silicon telescopes in coincidence with y rays measured by the GALILEO HPGe array. The level and y-decay scheme of 11B was reconstructed on an even-by-event basis by combining particle and y-ray spectroscopy techniques. In particular, the y decay from the possible near-threshold proton resonance was searched for, providing first results on its y-ray branch with a 5 sigma and 3 sigma confidence level. Results are discussed along with predictions of the Shell Model Embedded in the Continuum (SMEC).
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