- Physical Review Journals
All JournalsPhysics Magazine

Physical Review C

Reuse & Permissions

It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 4.0 International license. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

Export citation

Export citation

Choose format for download:

Download Citation
  • Open Access

Border of the island of inversion: Unbound states in Ne29

M. Holl1, S. Lindberg1, A. Heinz1, Y. Kondo2, T. Nakamura2, J. A. Tostevin2,3, H. Wang2, T. Nilsson1, N. L. Achouri4 et al. (SAMURAI21 Collaboration)

N. L. Achouri4, H. Al Falou5, L. Atar6, T. Aumann6,7, H. Baba8, K. Boretzky7, C. Caesar6,7, D. Calvet9, H. Chae10, N. Chiga8, A. Corsi9, H. L. Crawford11, F. Delaunay4, A. Delbart9, Q. Deshayes4, P. Díaz Fernández1, Z. Dombrádi12, C. A. Douma13, Z. Elekes12, P. Fallon11, I. Gašparić14,8,6, J.-M. Gheller9, J. Gibelin4, A. Gillibert9, M. N. Harakeh7,13, A. Hirayama2, C. R. Hoffman15, A. Horvat7, Á. Horváth16, J. W. Hwang17,10, T. Isobe8, J. Kahlbow6,8, N. Kalantar-Nayestanaki13, S. Kawase18, S. Kim17,10, K. Kisamori8, T. Kobayashi19, D. Körper7, S. Koyama20, I. Kuti12, V. Lapoux9, F. M. Marqués4, S. Masuoka21, J. Mayer22, K. Miki23, T. Murakami24, M. Najafi13, K. Nakano18, N. Nakatsuka24, A. Obertelli9, F. de Oliveira Santos25, N. A. Orr4, H. Otsu8, T. Ozaki2, V. Panin8, S. Paschalis6, A. Revel25, D. Rossi6, A. T. Saito2, T. Y. Saito20, M. Sasano8, H. Sato8, Y. Satou10, H. Scheit6, F. Schindler6, P. Schrock21, M. Shikata2, Y. Shimizu8, H. Simon7, D. Sohler12, O. Sorlin25, L. Stuhl8,17, S. Takeuchi2, M. Tanaka26, M. Thoennessen23, H. Törnqvist6, Y. Togano2,27, T. Tomai2, J. Tscheuschner6, J. Tsubota2, T. Uesaka8, Z. Yang8, M. Yasuda2, and K. Yoneda8 (SAMURAI21 Collaboration)

  • 1Institutionen för Fysik, Chalmers Tekniska Högskola, 412 96 Göteborg, Sweden
  • 2Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
  • 3Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom
  • 4LPC-Caen, ENSICAEN, CNRS/IN2P3, UNICAEN, Normandie Université, 14050 Caen, France
  • 5Lebanese University, Beirut, Lebanon
  • 6Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
  • 7GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
  • 8RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
  • 9Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
  • 10Department of Physics and Astronomy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
  • 11Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 12Institute of Nuclear Research, Atomki, 4001 Debrecen, Hungary
  • 13ESRIG, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands
  • 14Ruđer Bošković Institute, HR-10000 Zagreb, Croatia
  • 15Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 16Eötvös Loránd University, Pázmány Péter Sétány 1/A, H-1117 Budapest, Hungary
  • 17Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea
  • 18Department of Advanced Energy Engineering Science, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
  • 19Department of Physics, Tohoku University, Miyagi 980-8578, Japan
  • 20University of Tokyo, Tokyo 1130033, Japan
  • 21Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
  • 22Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany
  • 23National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
  • 24Department of Physics, Kyoto University, Kyoto 606-8502, Japan
  • 25Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
  • 26Department of Physics, Osaka University, Osaka 560-0043, Japan
  • 27Department of Physics, Rikkyo University, Tokyo 171-8501, Japan

PDF

Phys. Rev. C 105, 034301 – Published 1 March, 2022

DOI: https://doi.org/10.1103/PhysRevC.105.034301

Abstract

The nucleus Ne29 is situated at the border of the island of inversion. Despite significant efforts, no bound low-lying intruder f7/2 state, which would place Ne29 firmly inside the island of inversion, has yet been observed. Here, the first investigation of unbound states of Ne29 is reported. The states were populated in Ne30(p,pn) and Na30(p,2p) reactions at a beam energy of around 230 MeV/nucleon, and analyzed in terms of their resonance properties, partial cross sections, and momentum distributions. The momentum distributions are compared to calculations using the eikonal, direct reaction model, allowing ℓ assignments for the observed states. The lowest-lying resonance at an excitation energy of 1.48(4) MeV shows clear signs of a significant ℓ=3 component, giving first evidence for f7/2 single particle strength in Ne29. The excitation energies and strengths of the observed states are compared to shell-model calculations using the sdpf-u-mix interaction.

View figure in article

Physics Subject Headings (PhySH)

Article Text

References (44)

  1. T. Otsuka, A. Gade, O. Sorlin, T. Suzuki, and Y. Utsuno, Rev. Mod. Phys. 92, 015002 (2020).
  2. E. K. Warburton, J. A. Becker, and B. A. Brown, Phys. Rev. C 41, 1147 (1990).
  3. N. A. Orr, W. Mittig, L. K. Fifield, M. Lewitowicz, E. Plagnol, Y. Schutz, Z. Wen Long, L. Bianchi, A. Gillibert, A. V. Belozyorov, S. M. Lukyanov, Y. E. Penionzhkevich, A. C. Villari, A. Cunsolo, A. Foti, G. Audi, C. Stephan, and L. Tassan-Got, Phys. Lett. B 258, 29 (1991).
  4. A. Obertelli, A. Gillibert, N. Alamanos, M. Alvarez, F. Auger, R. Dayras, A. Drouart, G. De France, B. Jurado, N. Keeley, V. Lapoux, W. Mittig, X. Mougeot, L. Nalpas, A. Pakou, N. Patronis, E. C. Pollacco, F. Rejmund, M. Rejmund, P. Roussel-Chomaz et al., Phys. Lett. B 633, 33 (2006).
  5. J. R. Terry, D. Bazin, B. A. Brown, C. M. Campbell, J. A. Church, J. M. Cook, A. D. Davies, D. C. Dinca, J. Enders, A. Gade, T. Glasmacher, P. G. Hansen, J. L. Lecouey, T. Otsuka, B. Pritychenko, B. M. Sherrill, J. A. Tostevin, Y. Utsuno, K. Yoneda, and H. Zwahlen, Phys. Lett. B 640, 86 (2006).
  6. W. N. Catford, C. N. Timis, R. C. Lemmon, M. Labiche, N. A. Orr, B. Fernández-Domínguez, R. Chapman, M. Freer, M. Chartier, H. Savajols, M. Rejmund, N. L. Achouri, N. Amzal, N. I. Ashwood, T. D. Baldwin, M. Burns, L. Caballero, J. M. Casadjian, N. Curtis, G. De France et al., Phys. Rev. Lett. 104, 192501 (2010).
  7. A. Matta, W. N. Catford, N. A. Orr, J. Henderson, P. Ruotsalainen, G. Hackman, A. B. Garnsworthy, F. Delaunay, R. Wilkinson, G. Lotay, N. Tsunoda, T. Otsuka, A. J. Knapton, G. C. Ball, N. Bernier, C. Burbadge, A. Chester, D. S. Cross, S. Cruz, C. A. Diget et al., Phys. Rev. C 99, 044320 (2019).
  8. S. M. Brown, W. N. Catford, J. S. Thomas, B. Fernández-Domínguez, N. A. Orr, M. Labiche, M. Rejmund, N. L. Achouri, H. Al Falou, N. I. Ashwood, D. Beaumel, Y. Blumenfeld, B. A. Brown, R. Chapman, M. Chartier, N. Curtis, G. De France, N. De Sereville, F. Delaunay, A. Drouart et al., Phys. Rev. C 85, 011302(R) (2012).
  9. P. Doornenbal, H. Scheit, N. Aoi, S. Takeuchi, K. Li, E. Takeshita, H. Wang, H. Baba, S. Deguchi, N. Fukuda, H. Geissel, R. Gernhäuser, J. Gibelin, I. Hachiuma, Y. Hara, C. Hinke, N. Inabe, K. Itahashi, S. Itoh, D. Kameda et al., Phys. Rev. Lett. 103, 032501 (2009).
  10. P. Doornenbal, H. Scheit, S. Takeuchi, N. Aoi, K. Li, M. Matsushita, D. Steppenbeck, H. Wang, H. Baba, E. Ideguchi, N. Kobayashi, Y. Kondo, J. Lee, S. Michimasa, T. Motobayashi, A. Poves, H. Sakurai, M. Takechi, Y. Togano, and K. Yoneda, Phys. Rev. C 93, 044306 (2016).
  11. I. Murray, M. MacCormick, D. Bazin, P. Doornenbal, N. Aoi, H. Baba, H. Crawford, P. Fallon, K. Li, J. Lee, M. Matsushita, T. Motobayashi, T. Otsuka, H. Sakurai, H. Scheit, D. Steppenbeck, S. Takeuchi, J. A. Tostevin, N. Tsunoda, Y. Utsuno et al., Phys. Rev. C 99, 011302(R) (2019).
  12. N. Kobayashi, T. Nakamura, Y. Kondo, J. A. Tostevin, N. Aoi, H. Baba, R. Barthelemy, M. A. Famiano, N. Fukuda, N. Inabe, M. Ishihara, R. Kanungo, S. Kim, T. Kubo, G. S. Lee, H. S. Lee, M. Matsushita, T. Motobayashi, T. Ohnishi, N. A. Orr et al., Phys. Rev. C 93, 014613 (2016).
  13. H. Liu, J. Lee, P. Doornenbal, H. Scheit, S. Takeuchi, N. Aoi, K. Li, M. Matsushita, D. Steppenbeck, H. Wang, H. Baba, E. Ideguchi, N. Kobayashi, Y. Kondo, G. Lee, S. Michimasa, T. Motobayashi, A. Poves, H. Sakurai, M. Takechi et al., Phys. Lett. B 767, 58 (2017).
  14. T. Nakamura, N. Kobayashi, Y. Kondo, Y. Satou, N. Aoi, H. Baba, S. Deguchi, N. Fukuda, J. Gibelin, N. Inabe, M. Ishihara, D. Kameda, Y. Kawada, T. Kubo, K. Kusaka, A. Mengoni, T. Motobayashi, T. Ohnishi, M. Ohtake, N. A. Orr et al., Phys. Rev. Lett. 103, 262501 (2009).
  15. T. Nakamura, N. Kobayashi, Y. Kondo, Y. Satou, J. A. Tostevin, Y. Utsuno, N. Aoi, H. Baba, N. Fukuda, J. Gibelin, N. Inabe, M. Ishihara, D. Kameda, T. Kubo, T. Motobayashi, T. Ohnishi, N. A. Orr, H. Otsu, T. Otsuka, H. Sakurai et al., Phys. Rev. Lett. 112, 142501 (2014).
  16. T. Kubo, Nucl. Instrum. Methods Phys. Res. B 204, 97 (2003).
  17. A. Revel, O. Sorlin, F. M. Marqués, Y. Kondo, J. Kahlbow, T. Nakamura, N. A. Orr, F. Nowacki, J. A. Tostevin, C. X. Yuan, N. L. Achouri, H. Al Falou, L. Atar, T. Aumann, H. Baba, K. Boretzky, C. Caesar, D. Calvet, H. Chae, N. Chiga et al., Phys. Rev. Lett. 124, 152502 (2020).
  18. A. Obertelli, A. Delbart, S. Anvar, L. Audirac, G. Authelet, H. Baba, B. Bruyneel, D. Calvet, F. Château, A. Corsi, P. Doornenbal, J. M. Gheller, A. Giganon, C. Lahonde-Hamdoun, D. Leboeuf, D. Loiseau, A. Mohamed, J. P. Mols, H. Otsu, C. Péron et al., Eur. Phys. J. A 50, 8 (2014).
  19. S. Takeuchi, T. Motobayashi, Y. Togano, M. Matsushita, N. Aoi, K. Demichi, H. Hasegawa, and H. Murakami, Nucl. Instrum. Methods Phys. Res. A 763, 596 (2014).
  20. T. Kobayashi, N. Chiga, T. Isobe, Y. Kondo, T. Kubo, K. Kusaka, T. Motobayashi, T. Nakamura, J. Ohnishi, H. Okuno, H. Otsu, T. Sako, H. Sato, Y. Shimizu, K. Sekiguchi, K. Takahashi, R. Tanaka, and K. Yoneda, Nucl. Instrum. Methods Phys. Res. B 317, 294 (2013).
  21. Y. Shimizu, H. Otsu, T. Kobayashi, T. Kubo, T. Motobayashi, H. Sato, and K. Yoneda, Nucl. Instrum. Methods Phys. Res. B 317, 739 (2013).
  22. K. Boretzky, I. Gašparić, M. Heil, J. Mayer, A. Heinz, C. Caesar, D. Kresan, H. Simon, H. T. Törnqvist, D. Körper, G. Alkhazov, L. Atar, T. Aumann, D. Bemmerer, S. V. Bondarev, L. T. Bott, S. Chakraborty, M. I. Cherciu, L. V. Chulkov, M. Ciobanu et al., Nucl. Instrum. Methods Phys. Res. A 1014, 165701 (2021).
  23. T. Nakamura and Y. Kondo, Nucl. Instrum. Methods Phys. Res. B 376, 156 (2016).
  24. Y. Kondo, T. Tomai, and T. Nakamura, Nucl. Instrum. Methods Phys. Res. B 463, 173 (2020).
  25. A. Boudard, J. Cugnon, J.-C. David, S. Leray, and D. Mancusi, Phys. Rev. C 87, 014606 (2013).
  26. A. M. Lane and R. G. Thomas, Rev. Mod. Phys. 30, 257 (1958).
  27. F. M. Marqués, M. Labiche, N. A. Orr, F. Sarazin, and J. C. Angélique, Nucl. Instrum. Methods Phys. Res. A 450, 109 (2000).
  28. G. Randisi, A. Leprince, H. Al Falou, N. A. Orr, F. M. Marqués, N. L. Achouri, J. C. Angélique, N. Ashwood, B. Bastin, T. Bloxham, B. A. Brown, W. N. Catford, N. Curtis, F. Delaunay, M. Freer, E. de Góes Brennand, P. Haigh, F. Hanappe, C. Harlin, B. Laurent et al., Phys. Rev. C 89, 034320 (2014).
  29. H. Wang et al., in preparation (2021).
  30. M. Shamsuzzoha Basunia, Nucl. Data Sheets 114, 1189 (2013).
  31. P. G. Hansen and J. A. Tostevin, Annu. Rev. Nucl. Part. Sci. 53, 219 (2003).
  32. See Supplemental Material to Ref. [17] at http://link.aps.org/supplemental/10.1103/PhysRevLett.124.152502.
  33. J. A. Tostevin, arXiv:2104.03049 [nucl-th].
  34. J. A. Tostevin, Nucl. Phys. A 682, 320 (2001).
  35. R. B. Firestone, Nucl. Data Sheets 110, 1691 (2009).
  36. M. Shamsuzzoha Basunia, Nucl. Data Sheets 112, 1875 (2011).
  37. J. R. Terry, B. A. Brown, C. M. Campbell, J. M. Cook, A. D. Davies, D.-C. Dinca, A. Gade, T. Glasmacher, P. G. Hansen, B. M. Sherrill, H. Zwahlen, D. Bazin, K. Yoneda, J. A. Tostevin, T. Otsuka, Y. Utsuno, and B. Pritychenko, Phys. Rev. C 77, 014316 (2008).
  38. D. Bazin, N. Aoi, H. Baba, J. Chen, H. Crawford, P. Doornenbal, P. Fallon, K. Li, J. Lee, M. Matsushita, T. Motobayashi, H. Sakurai, H. Scheit, D. Steppenbeck, R. Stroberg, S. Takeuchi, H. Wang, K. Yoneda, and C. X. Yuan, Phys. Rev. C 103, 064318 (2021).
  39. M. Shamsuzzoha Basunia and A. Chakraborty, Nucl. Data Sheets 171, 1 (2021).
  40. S. Jongile, A. Lemasson, O. Sorlin, M. Wiedeking, P. Papka, D. Bazin, C. Borcea, R. Borcea, A. Gade, H. Iwasaki, E. Khan, A. Lepailleur, A. Mutschler, F. Nowacki, F. Recchia, T. Roger, F. Rotaru, M. Stanoiu, S. R. Stroberg, J. A. Tostevin, M. Vandebrouck, D. Weisshaar, and K. Wimmer, Phys. Rev. C 102, 024321 (2020).
  41. J. Chen, J. Cameron, and B. Singh, Nucl. Data Sheets 112, 2715 (2011).
  42. E. Caurier, F. Nowacki, and A. Poves, Phys. Rev. C 90, 014302 (2014).
  43. E. Caurier, G. Martínez-Pinedo, F. Nowack, A. Poves, and A. P. Zuker, Rev. Mod. Phys. 77, 427 (2005).
  44. A. Poves (private communication).

Outline

Information

Phys. Rev. C 105, 034301– Published 1 March, 2022
  • Received 3 December 2021
  • Accepted 1 February 2022
Crossmark - Check for updates button
Creative Commons Logo

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by Bibsam.

Published by the American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation