Large collectivity in 29Ne at the boundary of the island of inversión
EntityUAM. Departamento de Física Teórica
10.1016/j.physletb.2023.137704Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 838 (2023): 137704
ISSN0370-2693 (print); 1873-2445 (online)
Funded byThe authors would like to thank K. Wimmer for providing us the input for FRESCO calculations and A. Moro for giving access to an unpublished version of the FRESCO code. This work was supported by the U.S. Department of Energy (DOE), Office of Science, Office of Nuclear Physics, under Grant No. DE-SC0020451, the U.S. National Science Foundation (NSF) under Grant No. PHY1565546 (Operation of the NSCL) and PHY2110365, and by the DOE National Nuclear Security Administration through the Nuclear Science and Security Consortium, under Award No. DE-NA0003180. GRETINA was funded by the DOE, Office of Science. Operation of the array at NSCL was supported by DOE under Grants No. DE-SC0019034 (NSCL) and No. DE-AC02-05CH11231 (LBNL). A.P. acknowledges the Grant CEX2020-001007-S funded by MCIN/AEI/10.13039/501100011033 and PGC2018-094583. Y.U. and N.S. acknowledge KAKENHI Grant No. 20K03981 from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. N.S. acknowledges support from “Program for Promoting Researches on the Supercomputer Fugaku” (JPMXP1020200105, hp210165, and hp220174) by JICFuS and MEXT, Japan. T.M. acknowledges the support by the Croatian Science Foundation under project No. IP-2018-01-1257
ProjectGobierno de España. CEX2020-001007-S
SubjectsCollectivity; Gamma Spectroscopy; Inelastic Scattering; Transition Strengths; Island of Inversion; Física
NoteArtículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiere
Rights© 2023 The Authors. Published by Elsevier B.V.
Esta obra está bajo una Licencia Creative Commons Atribución 4.0 Internacional.
The heavy-ion inelastic scattering of the neutron-rich nucleus 29Ne to its excited states was studied using a 100.1 MeV/u 29Ne rare isotope beam on 181Ta and 9Be targets. The combined setup consisting of the GRETINA array, the TRIPLEX device and the S800 Spectrograph facilitates the simultaneous measurements of the two inelastic reactions, providing the first measurement of the transition strengths for this isotope. A sizable E2 strength B(E2↑) which amounts to 163(30) e2 fm4 was determined in the excitation to the 931-keV state, demonstrating a large degree of collectivity. The present results of B(E2↑) are compared to various shell-model calculations, confirming the role of intruder configurations in 29Ne at the boundary of the island of inversion
Google Scholar:Revel, A. - Poves Paredes, Alfredo
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