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  • Kondo, Y.RIKEN,Tokyo Institute of Technology (author)

First observation of 28 O

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • 2023
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:f008489c-25af-442b-bf31-c085cbe331d2
  • https://research.chalmers.se/publication/537448URI
  • https://doi.org/10.1038/s41586-023-06352-6DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Subjecting a physical system to extreme conditions is one of the means often used to obtain a better understanding and deeper insight into its organization and structure. In the case of the atomic nucleus, one such approach is to investigate isotopes that have very different neutron-to-proton (N/Z) ratios than in stable nuclei. Light, neutron-rich isotopes exhibit the most asymmetric N/Z ratios and those lying beyond the limits of binding, which undergo spontaneous neutron emission and exist only as very short-lived resonances (about 10−21s), provide the most stringent tests of modern nuclear-structure theories. Here we report on the first observation of 28O and 27O through their decay into 24O and four and three neutrons, respectively. The 28O nucleus is of particular interest as, with the Z = 8 and N = 20 magic numbers1,2, it is expected in the standard shell-model picture of nuclear structure to be one of a relatively small number of so-called ‘doubly magic’ nuclei. Both 27O and 28O were found to exist as narrow, low-lying resonances and their decay energies are compared here to the results of sophisticated theoretical modelling, including a large-scale shell-model calculation and a newly developed statistical approach. In both cases, the underlying nuclear interactions were derived from effective field theories of quantum chromodynamics. Finally, it is shown that the cross-section for the production of 28O from a 29F beam is consistent with it not exhibiting a closed N = 20 shell structure.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Achouri, N. L.Normandie University, France (author)
  • Falou, H. A.Universite Libanaise,Lebanese University (author)
  • Atar, L.Technische Universität Darmstadt (author)
  • Aumann, T.Technische Universität Darmstadt,Helmholtz Zentrum,Helmholtz Center,Helmholtz Forschungsakademie Hessen für FAIR (HFHF),Helmholtz Research Academy Hesse for FAIR (HFHF) (author)
  • Baba, H.RIKEN (author)
  • Boretzky, K.Helmholtz Zentrum,Helmholtz Center (author)
  • Caesar, C.Technische Universität Darmstadt,Helmholtz Zentrum,Helmholtz Center (author)
  • Calvet, D.Université Paris-Saclay,University Paris-Saclay (author)
  • Chae, H.Institute for Basic Science (author)
  • Chiga, N.RIKEN (author)
  • Corsi, A.Université Paris-Saclay,University Paris-Saclay (author)
  • Delaunay, F.Normandie University, France (author)
  • Delbart, A.Université Paris-Saclay,University Paris-Saclay (author)
  • Deshayes, Q.Normandie University, France (author)
  • Dombrádi, ZsMagyar Tudomanyos Akademia,Hungarian Academy of Sciences (author)
  • Douma, C. A.Rijksuniversiteit Groningen,University of Groningen (author)
  • Ekström, Andreas,1980Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)andeks (author)
  • Elekes, Z.Magyar Tudomanyos Akademia,Hungarian Academy of Sciences (author)
  • Forssén, Christian,1974Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)f2bcf (author)
  • Gasparic, I.Ruder Boskovic Institute,RIKEN,Technische Universität Darmstadt (author)
  • Gheller, J. M.Université Paris-Saclay,University Paris-Saclay (author)
  • Gibelin, J.Normandie University, France (author)
  • Gillibert, A.Université Paris-Saclay,University Paris-Saclay (author)
  • Hagen, G.Oak Ridge National Laboratory,University of Tennessee (author)
  • Harakeh, M. N.Helmholtz Zentrum,Helmholtz Center,Rijksuniversiteit Groningen,University of Groningen (author)
  • Hirayama, A.Tokyo Institute of Technology (author)
  • Hoffman, C. R.Argonne National Laboratory (author)
  • Holl, M.Helmholtz Zentrum,Helmholtz Center,Technische Universität Darmstadt (author)
  • Horvat, A.Helmholtz Zentrum,Helmholtz Center (author)
  • Horváth,Eötvös Loránd University (ELTE) (author)
  • Hwang, J. W.Institute for Basic Science,Seoul National University (author)
  • Isobe, T.RIKEN (author)
  • Jiang, Weiguang,1989Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)weiguang (author)
  • Kahlbow, J.RIKEN,Technische Universität Darmstadt (author)
  • Kalantar-Nayestanaki, N.Rijksuniversiteit Groningen,University of Groningen (author)
  • Kawase, S.Kyushu University (author)
  • Kim, S.Institute for Basic Science,Seoul National University (author)
  • Kisamori, K.RIKEN (author)
  • Kobayashi, T.Tohoku University (author)
  • Körper, D.Helmholtz Zentrum,Helmholtz Center (author)
  • Koyama, S.University of Tokyo, Japan (author)
  • Kuti, I.Magyar Tudomanyos Akademia,Hungarian Academy of Sciences (author)
  • Lapoux, V.Université Paris-Saclay,University Paris-Saclay (author)
  • Lindberg, Simon,1987Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)lisimo (author)
  • Marqués, F. M.Normandie University, France (author)
  • Masuoka, S.University of Tokyo, Japan (author)
  • Mayer, J.Universität zu Köln,University of Cologne (author)
  • Miki, K.Tohoku University (author)
  • Murakami, T.Kyoto University (author)
  • Najafi, M. A.Rijksuniversiteit Groningen,University of Groningen (author)
  • Nakamura, T.RIKEN,Tokyo Institute of Technology (author)
  • Nakano, K.Kyushu University (author)
  • Nakatsuka, N.Kyoto University (author)
  • Nilsson, Thomas,1965Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)tnilsson (author)
  • Obertelli, A.Université Paris-Saclay,University Paris-Saclay (author)
  • Ogata, K.Osaka University,Kyushu University,Osaka Metropolitan University (author)
  • De Oliveira-Santos, F.Grand Accélérateur National d'Ions Lourds (GANIL) (author)
  • Orr, N. A.Normandie University, France (author)
  • Otsu, H.RIKEN (author)
  • Otsuka, T.University of Tokyo, Japan,RIKEN (author)
  • Ozaki, T.Tokyo Institute of Technology (author)
  • Panin, V.RIKEN (author)
  • Papenbrock, T.Oak Ridge National Laboratory,University of Tennessee (author)
  • Paschalis, S.Technische Universität Darmstadt (author)
  • Revel, A.Normandie University, France,Grand Accélérateur National d'Ions Lourds (GANIL) (author)
  • Rossi, D.Technische Universität Darmstadt (author)
  • Saito, A. T.Tokyo Institute of Technology (author)
  • Saito, T. Y.University of Tokyo, Japan (author)
  • Sasano, M.RIKEN (author)
  • Sato, H.RIKEN (author)
  • Satou, Y.Seoul National University (author)
  • Scheit, H.Technische Universität Darmstadt (author)
  • Schindler, F.Technische Universität Darmstadt (author)
  • Schrock, P.University of Tokyo, Japan (author)
  • Shikata, M.Tokyo Institute of Technology (author)
  • Shimizu, N.University of Tsukuba (author)
  • Shimizu, Y.RIKEN (author)
  • Simon, H.Helmholtz Zentrum,Helmholtz Center (author)
  • Sohler, D.Magyar Tudomanyos Akademia,Hungarian Academy of Sciences (author)
  • Sorlin, OlivierGrand Accélérateur National d'Ions Lourds (GANIL) (author)
  • Stuhl, L.Institute for Basic Science,RIKEN (author)
  • Sun, Z. H.Oak Ridge National Laboratory,University of Tennessee (author)
  • Takeuchi, S.Tokyo Institute of Technology (author)
  • Tanaka, M.Osaka University (author)
  • Thoennessen, M.Michigan State University (author)
  • Törnqvist, Hans,1985Helmholtz Zentrum,Helmholtz Center,Technische Universität Darmstadt(Swepub:cth)tornqvih (author)
  • Togano, Y.Rikkyo University,Tokyo Institute of Technology (author)
  • Tomai, T.Tokyo Institute of Technology (author)
  • Tscheuschner, J.Technische Universität Darmstadt (author)
  • Tsubota, J.Tokyo Institute of Technology (author)
  • Tsunoda, N.University of Tokyo, Japan (author)
  • Uesaka, T.RIKEN (author)
  • Utsuno, Y.Japan Atomic Energy Agency (author)
  • Vernon, I.Durham University (author)
  • Wang, H.RIKEN (author)
  • Yang, Z.RIKEN (author)
  • Yasuda, M.Tokyo Institute of Technology (author)
  • Yoneda, K.RIKEN (author)
  • Yoshida, S. (author)
  • RIKENTokyo Institute of Technology (creator_code:org_t)

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