Intruder configurations in ²⁹Ne at the transition into the island of inversion: Detailed structure study of ²⁸Ne

H. Wang; M. Yasuda; Y. Kondo; T. Nakamura; J.A. Tostevin; K. Ogata; T. Otsuka; A. Poves; N. Shimizu; K. Yoshida; N.L. Achouri; H. Al Falou; L. Atar; T. Aumann; H. Baba; K. Boretzky; C. Caesar; D. Calvet; H. Chae; N. Chiga; A. Corsi; H.L. Crawford; F. Delaunay; A. Delbart; Q. Deshayes; Zs Dombrádi; C. Douma; Z. Elekes; P. Fallon; I. Gašparić; J.-M. Gheller; J. Gibelin; A. Gillibert; M.N. Harakeh; A. Hirayama; C.R. Hoffman; M. Holl; A. Horvat; Á. Horváth; J.W. Hwang; T. Isobe; J. Kahlbow; N. Kalantar-Nayestanaki; S. Kawase; S. Kim; K. Kisamori; T. Kobayashi; D. Körper; S. Koyama; I. Kuti; V. Lapoux; S. Lindberg; F.M. Marqués; S. Masuoka; J. Mayer; K. Miki; T. Murakami; M.A. Najafi; K. Nakano; N. Nakatsuka; T. Nilsson; A. Obertelli; N.A. Orr; H. Otsu; T. Ozaki; V. Panin; S. Paschalis; A. Revel; D. Rossi; A.T. Saito; T. Saito; M. Sasano; H. Sato; Y. Satou; H. Scheit; F. Schindler; P. Schrock; M. Shikata; Y. Shimizu; H. Simon; D. Sohler; O. Sorlin; L. Stuhl; S. Takeuchi; M. Tanaka; M. Thoennessen; H. Törnqvist; Y. Togano; T. Tomai; J. Tscheuschner; J. Tsubota; T. Uesaka; Z. Yang; K. Yoneda

doi:10.1016/j.physletb.2023.138038

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Intruder configurations in ²⁹Ne at the transition into the island of inversion: Detailed structure study of ²⁸Ne

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Intruder configurations in ²⁹Ne at the transition into the island of inversion: Detailed structure study of ²⁸Ne

H. Wang, M. Yasuda, Y. Kondo, T. Nakamura, J.A. Tostevin, K. Ogata, T. Otsuka, A. Poves, N. Shimizu, K. Yoshida, …

Physics Letters B, Vol.843

10/08/2023

DOI: https://doi.org/10.1016/j.physletb.2023.138038

Abstract

In-beam γ-ray spectroscopy

Island of inversion

Shell evolution

Detailed γ-ray spectroscopy of the exotic neon isotope ²⁸Ne has been performed for the first time using the one-neutron removal reaction from ²⁹Ne on a liquid hydrogen target at 240 MeV/nucleon. Based on an analysis of parallel momentum distributions, a level scheme with spin-parity assignments has been constructed for 28Ne and the negative-parity states are identified for the first time. The measured partial cross sections and momentum distributions reveal a significant intruder p-wave strength providing evidence of the breakdown of the N=20 and N=28 shell gaps. Only a weak, possible f-wave strength was observed to bound final states. Large-scale shell-model calculations with different effective interactions do not reproduce the large p-wave and small f-wave strength observed experimentally, indicating an ongoing challenge for a complete theoretical description of the transition into the island of inversion along the Ne isotopic chain.

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Title: Intruder configurations in ²⁹Ne at the transition into the island of inversion: Detailed structure study of ²⁸Ne
Creators: H. Wang - RIKEN
M. Yasuda - Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
Y. Kondo - Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
T. Nakamura - Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
J.A. Tostevin - University of Surrey, School of Maths and Physics
K. Ogata - Osaka University
T. Otsuka - University of Tokyo, Tokyo 1130033, Japan
A. Poves - Departamento de Física Teórica and IFT UAM-CSIC, Universidad Autónoma de Madrid, 28049 Madrid, Spain
N. Shimizu - Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
K. Yoshida - Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
N.L. Achouri - LPC Caen, CNRS/IN2P3, ENSICAEN, UniCaen, Normandie Université, 14050 CAEN Cedex, France
H. Al Falou - Lebanese University, Beirut, Lebanon
L. Atar - Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
T. Aumann - Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
H. Baba - RIKEN Nishina Center
K. Boretzky - GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
C. Caesar - GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
D. Calvet - Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
H. Chae - Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea
N. Chiga - RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
A. Corsi - Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
H.L. Crawford - Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
F. Delaunay - Lebanese University
A. Delbart - Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
Q. Deshayes - LPC Caen, CNRS/IN2P3, ENSICAEN, UniCaen, Normandie Université, 14050 CAEN Cedex, France
Zs Dombrádi - Institute of Nuclear Research, Atomki, 4001 Debrecen, Hungary
C. Douma - ESRIG, University of Groningen, Zernikelaan 25, 9747 AA Groningen, the Netherlands
Z. Elekes - Institute of Nuclear Research, Atomki, 4001 Debrecen, Hungary
P. Fallon - Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
I. Gašparić - GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
J.-M. Gheller - Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
J. Gibelin - Tokyo Institute of Technology
A. Gillibert - Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
M.N. Harakeh - ESRIG, University of Groningen, Zernikelaan 25, 9747 AA Groningen, the Netherlands
A. Hirayama - Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
C.R. Hoffman - Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
M. Holl - Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
A. Horvat - Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
Á. Horváth - Eötvös Loránd University
J.W. Hwang - Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea
T. Isobe - University of Paris-Saclay
J. Kahlbow - Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
N. Kalantar-Nayestanaki - ESRIG, University of Groningen, Zernikelaan 25, 9747 AA Groningen, the Netherlands
S. Kawase - Department of Advanced Energy Engineering Science, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
S. Kim - GSI Helmholtz Centre for Heavy Ion Research
K. Kisamori - RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
T. Kobayashi - Department of Physics, Tohoku University, Miyagi 980-8578, Japan
D. Körper - GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
S. Koyama - University of Tokyo, Tokyo 1130033, Japan
I. Kuti - Institute of Nuclear Research, Atomki, 4001 Debrecen, Hungary
V. Lapoux - Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
S. Lindberg - Institutionen för Fysik, Chalmers Tekniska Högskola, 412 96 Göteborg, Sweden
F.M. Marqués - LPC Caen, CNRS/IN2P3, ENSICAEN, UniCaen, Normandie Université, 14050 CAEN Cedex, France
S. Masuoka - Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
J. Mayer - Tokyo Institute of Technology
K. Miki - Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
T. Murakami - University of Paris-Saclay
M.A. Najafi - ESRIG, University of Groningen, Zernikelaan 25, 9747 AA Groningen, the Netherlands
K. Nakano - Department of Advanced Energy Engineering Science, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
N. Nakatsuka - Department of Physics, Kyoto University, Kyoto 606-8502, Japan
T. Nilsson - Institutionen för Fysik, Chalmers Tekniska Högskola, 412 96 Göteborg, Sweden
A. Obertelli - Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
N.A. Orr - LPC Caen, CNRS/IN2P3, ENSICAEN, UniCaen, Normandie Université, 14050 CAEN Cedex, France
H. Otsu - RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
T. Ozaki - Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
V. Panin - RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
S. Paschalis - Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
A. Revel - LPC Caen, CNRS/IN2P3, ENSICAEN, UniCaen, Normandie Université, 14050 CAEN Cedex, France
D. Rossi - Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
A.T. Saito - Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
T. Saito - University of Tokyo, Tokyo 1130033, Japan
M. Sasano - RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
H. Sato - RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
Y. Satou - Department of Physics and Astronomy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
H. Scheit - Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
F. Schindler - Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
P. Schrock - Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
M. Shikata - Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
Y. Shimizu - RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
H. Simon - GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
D. Sohler - Institute of Nuclear Research, Atomki, 4001 Debrecen, Hungary
O. Sorlin - Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
L. Stuhl - RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
S. Takeuchi - Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
M. Tanaka - Department of Physics, Osaka University, Osaka 560-0043, Japan
M. Thoennessen - Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
H. Törnqvist - RIKEN Nishina Center
Y. Togano - Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
T. Tomai - Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
J. Tscheuschner - Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
J. Tsubota - Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
T. Uesaka - RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
Z. Yang - GSI Helmholtz Centre for Heavy Ion Research
K. Yoneda - RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
Publication Details: Physics Letters B, Vol.843
Publisher: Elsevier
Date published: 10/08/2023
Date accepted: 16/06/2023
Grants: Advancing Nuclear Science via Theory and Experiment, ST/V001108/1 , Science and Technology Facilities Council (United Kingdom, Swindon) - STFC
CEX2020-001007-S, Spanish Ministry of Science and Innovation
K128947, National Research, Development and Innovation Office (Hungary, Budapest) - NKFIH
TKP2021-NKTA-42, National Research, Development and Innovation Office (Hungary, Budapest) - NKFIH
Grant note: We express our gratitude to the RIKEN Nishina accelerator staff for providing the 48Ca beam and to the BigRIPS team for tuning the secondary beams. H.W acknowledges the support by MEXT KAKENHI Grant Nos. JP21H04465 and JP18H05404. This work was supported partially by MEXT KAKENHI Grant No. JP16H02179. J.A.T acknowledges the support of the United Kingdom Science and Technology Facilities Council (STFC) Grant No. ST/V001108/1. A.P. is supported by grants CEX2020-001007-S funded by MCIN/AEI/10.13039/501100011033 and PID2021-127890NB-I00. K.O acknowledges the support by MEXT KAKENHI Grant Nos. JP21H00125 and JP21H04975. The LPC-Caen group wished to acknowledge support from the Franco-Japanese LIA-International Associated Laboratory for Nuclear Structure Problems as well as the French ANR-14-CE33-0022-02 EXPAND. This material is in part based upon work supported by the U.S. Department of Energy Office of Science, Office of Nuclear Physics, under Contracts No. DE-AC02-06CH11357 (Argonne). This work was in part supported by the Institute for Basic Science (IBS-R031-D1) in Republic of Korea. This work is partly supported from the National Research, Development and Innovation Fund of Hungary via Project No. K128947 and TKP2021-NKTA-42. This work was supported by the National Science Foundation, USA under Grants No. PHY-1102511.
Identifiers: 99780666602346
Academic Unit: School of Maths and Physics
Language: English
Resource Type: Journal article

Intruder configurations in ²⁹Ne at the transition into the island of inversion: Detailed structure study of ²⁸Ne

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