High-resolution spectroscopy of neutron-rich Br isotopes and signatures for a prolate-to-oblate shape transition at N=56

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Main Authors: Dudouet, J., Colombi, G., Tello, D. Reygadas, Michelagnoli, C., Dao, D. D., Nowacki, F., Abushawish, M., Clément, E., Costache, C., Duchêne, G., Kandzia, F., Lemasson, A., Marginean, N., Marginean, R., Mihai, C., Pascu, S., Rejmund, M., Rezynkina, K., Stezowski, O., Turturica, A., Ujeniuc, S., Astier, A., de Angelis, G., de France, G., Delafosse, C., Deloncle, I., Gadea, A., Gottardo, A., Jones, P., Konstantinopoulos, T., Kuti, I., Blanc, F. Le, Lenzi, S. M., Lozeva, R., Million, B., Pérez-Vidal, R. M., Petrache, C. M., Ralet, D., Redon, N., Schmitt, C., Sohler, D., Verney, D.
Format: Preprint
Published: 2024
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author Dudouet, J.
Colombi, G.
Tello, D. Reygadas
Michelagnoli, C.
Dao, D. D.
Nowacki, F.
Abushawish, M.
Clément, E.
Costache, C.
Duchêne, G.
Kandzia, F.
Lemasson, A.
Marginean, N.
Marginean, R.
Mihai, C.
Pascu, S.
Rejmund, M.
Rezynkina, K.
Stezowski, O.
Turturica, A.
Ujeniuc, S.
Astier, A.
de Angelis, G.
de France, G.
Delafosse, C.
Deloncle, I.
Gadea, A.
Gottardo, A.
Jones, P.
Konstantinopoulos, T.
Kuti, I.
Blanc, F. Le
Lenzi, S. M.
Lozeva, R.
Million, B.
Pérez-Vidal, R. M.
Petrache, C. M.
Ralet, D.
Redon, N.
Schmitt, C.
Sohler, D.
Verney, D.
author_facet Dudouet, J.
Colombi, G.
Tello, D. Reygadas
Michelagnoli, C.
Dao, D. D.
Nowacki, F.
Abushawish, M.
Clément, E.
Costache, C.
Duchêne, G.
Kandzia, F.
Lemasson, A.
Marginean, N.
Marginean, R.
Mihai, C.
Pascu, S.
Rejmund, M.
Rezynkina, K.
Stezowski, O.
Turturica, A.
Ujeniuc, S.
Astier, A.
de Angelis, G.
de France, G.
Delafosse, C.
Deloncle, I.
Gadea, A.
Gottardo, A.
Jones, P.
Konstantinopoulos, T.
Kuti, I.
Blanc, F. Le
Lenzi, S. M.
Lozeva, R.
Million, B.
Pérez-Vidal, R. M.
Petrache, C. M.
Ralet, D.
Redon, N.
Schmitt, C.
Sohler, D.
Verney, D.
contents The first systematic experimental study of the neutron-rich Br isotopes with two complementary state-of-the-art techniques is presented. These isotopes have been populated in the fission process at two different facilities, GANIL and ILL. New spectroscopic information has been obtained for odd-even $^{87-93}$Br isotopes and the experimental results have been compared with state-of-the-art Large-Scale Shell-Model and DNO Shell-Model calculations. As a result of such theoretical approaches, a transition from prolate ($^{87,89}$Br) to oblate ($^{91,93}$Br) shapes is obtained from the subtle balance between proton and neutron quadrupole deformations, as a clear signature of pseudo-SU3 quadrupole regime.
format Preprint
id arxiv_https___arxiv_org_abs_2405_15601
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle High-resolution spectroscopy of neutron-rich Br isotopes and signatures for a prolate-to-oblate shape transition at N=56
Dudouet, J.
Colombi, G.
Tello, D. Reygadas
Michelagnoli, C.
Dao, D. D.
Nowacki, F.
Abushawish, M.
Clément, E.
Costache, C.
Duchêne, G.
Kandzia, F.
Lemasson, A.
Marginean, N.
Marginean, R.
Mihai, C.
Pascu, S.
Rejmund, M.
Rezynkina, K.
Stezowski, O.
Turturica, A.
Ujeniuc, S.
Astier, A.
de Angelis, G.
de France, G.
Delafosse, C.
Deloncle, I.
Gadea, A.
Gottardo, A.
Jones, P.
Konstantinopoulos, T.
Kuti, I.
Blanc, F. Le
Lenzi, S. M.
Lozeva, R.
Million, B.
Pérez-Vidal, R. M.
Petrache, C. M.
Ralet, D.
Redon, N.
Schmitt, C.
Sohler, D.
Verney, D.
Nuclear Experiment
Nuclear Theory
The first systematic experimental study of the neutron-rich Br isotopes with two complementary state-of-the-art techniques is presented. These isotopes have been populated in the fission process at two different facilities, GANIL and ILL. New spectroscopic information has been obtained for odd-even $^{87-93}$Br isotopes and the experimental results have been compared with state-of-the-art Large-Scale Shell-Model and DNO Shell-Model calculations. As a result of such theoretical approaches, a transition from prolate ($^{87,89}$Br) to oblate ($^{91,93}$Br) shapes is obtained from the subtle balance between proton and neutron quadrupole deformations, as a clear signature of pseudo-SU3 quadrupole regime.
title High-resolution spectroscopy of neutron-rich Br isotopes and signatures for a prolate-to-oblate shape transition at N=56
topic Nuclear Experiment
Nuclear Theory
url https://arxiv.org/abs/2405.15601