A first -ray study of spectroscopy was performed at the Radioactive Isotope Beam Factory with projectiles at 217 MeV/nucleon, impinging on the liquid hydrogen target of the MINOS device. Prompt deexcitation rays were measured with the NaI(Tl) array DALI2. Through the one-proton knockout reaction , a spin assignment could be determined for the low-lying states of from the momentum distribution obtained with the SAMURAI spectrometer. A spin-parity is deduced for the ground state of , similar to the recently studied isotope . The evolution of the energy difference is compared to state-of-the-art theoretical predictions.
Investigation of the ground-state spin inversion in the neutron-rich 47,49Cl isotopes / B.D. Linh, A. Corsi, A. Gillibert, A. Obertelli, P. Doornenbal, C. Barbieri, S. Chen, L.X. Chung, T. Duguet, M. Gomez-Ramos, J.D. Holt, A. Moro, P. Navratil, K. Ogata, N.T.T. Phuc, N. Shimizu, V. Soma, Y. Utsuno, N.L. Achouri, H. Baba, F. Browne, D. Calvet, F. Chateau, N. Chiga, M.L. Cortes, A. Delbart, J.-. Gheller, A. Giganon, C. Hilaire, T. Isobe, T. Kobayashi, Y. Kubota, V. Lapoux, H.N. Liu, T. Motobayashi, I. Murray, H. Otsu, V. Panin, N. Paul, W. Rodriguez, H. Sakurai, M. Sasano, D. Steppenbeck, L. Stuhl, Y.L. Sun, Y. Togano, T. Uesaka, K. Wimmer, K. Yoneda, O. Aktas, T. Aumann, F. Flavigny, S. Franchoo, I. Gasparic, R.-. Gerst, J. Gibelin, K.I. Hahn, N.T. Khai, D. Kim, T. Koiwai, Y. Kondo, P. Koseoglou, J. Lee, C. Lehr, T. Lokotko, M. MacCormick, K. Moschner, T. Nakamura, S.Y. Park, D. Rossi, E. Sahin, D. Sohler, P.-. Soderstrom, S. Takeuchi, N.D. Ton, H. Tornqvist, V. Vaquero, V. Wagner, H. Wang, V. Werner, X. Xu, Y. Yamada, D. Yan, Z. Yang, M. Yasuda, L. Zanetti. - In: PHYSICAL REVIEW C. - ISSN 2469-9985. - 104:4(2021 Oct 29), pp. 044331.1-044331.16. [10.1103/PhysRevC.104.044331]
Investigation of the ground-state spin inversion in the neutron-rich 47,49Cl isotopes
C. Barbieri;
2021
Abstract
A first -ray study of spectroscopy was performed at the Radioactive Isotope Beam Factory with projectiles at 217 MeV/nucleon, impinging on the liquid hydrogen target of the MINOS device. Prompt deexcitation rays were measured with the NaI(Tl) array DALI2. Through the one-proton knockout reaction , a spin assignment could be determined for the low-lying states of from the momentum distribution obtained with the SAMURAI spectrometer. A spin-parity is deduced for the ground state of , similar to the recently studied isotope . The evolution of the energy difference is compared to state-of-the-art theoretical predictions.
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