Physics Letters B (Aug 2023)
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
Affiliations
- H. Wang
- RIKEN, High Energy Nuclear Physics Laboratory, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Corresponding author.
- 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
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan; Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom
- K. Ogata
- Department of Physics, Kyushu University, Fukuoka 819-0395, Japan; Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
- T. Otsuka
- University of Tokyo, Tokyo 1130033, Japan; RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, 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; GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
- H. Baba
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- 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
- LPC Caen, CNRS/IN2P3, ENSICAEN, UniCaen, Normandie Université, 14050 CAEN Cedex, France
- 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
- Ruđer Bošković Institute, HR-10002 Zagreb, Croatia; GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
- J.-M. Gheller
- Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- J. Gibelin
- LPC Caen, CNRS/IN2P3, ENSICAEN, UniCaen, Normandie Université, 14050 CAEN Cedex, France
- 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, Pázmány Péter Sétány 1/A, H-1117 Budapest, Hungary
- J.W. Hwang
- Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea
- T. Isobe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- 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
- Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea
- 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
- Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany
- K. Miki
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
- T. Murakami
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- 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
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France; LPC Caen, CNRS/IN2P3, ENSICAEN, UniCaen, Normandie Université, 14050 CAEN Cedex, France; Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- D. Rossi
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, 64291 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
- Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea; 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; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- H. Törnqvist
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
- 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
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- K. Yoneda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Journal volume & issue
-
Vol. 843
p. 138038
Abstract
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.
