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First observation of 28 O

Kondo, Y. (author)
RIKEN,Tokyo Institute of Technology
Achouri, N. L. (author)
Normandie University, France
Falou, H. A. (author)
Universite Libanaise,Lebanese University
show more...
Atar, L. (author)
Technische Universität Darmstadt
Aumann, T. (author)
Technische Universität Darmstadt,Helmholtz Zentrum,Helmholtz Center,Helmholtz Forschungsakademie Hessen für FAIR (HFHF),Helmholtz Research Academy Hesse for FAIR (HFHF)
Baba, H. (author)
RIKEN
Boretzky, K. (author)
Helmholtz Zentrum,Helmholtz Center
Caesar, C. (author)
Technische Universität Darmstadt,Helmholtz Zentrum,Helmholtz Center
Calvet, D. (author)
Université Paris-Saclay,University Paris-Saclay
Chae, H. (author)
Institute for Basic Science
Chiga, N. (author)
RIKEN
Corsi, A. (author)
Université Paris-Saclay,University Paris-Saclay
Delaunay, F. (author)
Normandie University, France
Delbart, A. (author)
Université Paris-Saclay,University Paris-Saclay
Deshayes, Q. (author)
Normandie University, France
Dombrádi, Zs (author)
Magyar Tudomanyos Akademia,Hungarian Academy of Sciences
Douma, C. A. (author)
Rijksuniversiteit Groningen,University of Groningen
Ekström, Andreas, 1980 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Elekes, Z. (author)
Magyar Tudomanyos Akademia,Hungarian Academy of Sciences
Forssén, Christian, 1974 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Gasparic, I. (author)
Ruder Boskovic Institute,RIKEN,Technische Universität Darmstadt
Gheller, J. M. (author)
Université Paris-Saclay,University Paris-Saclay
Gibelin, J. (author)
Normandie University, France
Gillibert, A. (author)
Université Paris-Saclay,University Paris-Saclay
Hagen, G. (author)
Oak Ridge National Laboratory,University of Tennessee
Harakeh, M. N. (author)
Helmholtz Zentrum,Helmholtz Center,Rijksuniversiteit Groningen,University of Groningen
Hirayama, A. (author)
Tokyo Institute of Technology
Hoffman, C. R. (author)
Argonne National Laboratory
Holl, M. (author)
Helmholtz Zentrum,Helmholtz Center,Technische Universität Darmstadt
Horvat, A. (author)
Helmholtz Zentrum,Helmholtz Center
Horváth, (author)
Eötvös Loránd University (ELTE)
Hwang, J. W. (author)
Institute for Basic Science,Seoul National University
Isobe, T. (author)
RIKEN
Jiang, Weiguang, 1989 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Kahlbow, J. (author)
RIKEN,Technische Universität Darmstadt
Kalantar-Nayestanaki, N. (author)
Rijksuniversiteit Groningen,University of Groningen
Kawase, S. (author)
Kyushu University
Kim, S. (author)
Institute for Basic Science,Seoul National University
Kisamori, K. (author)
RIKEN
Kobayashi, T. (author)
Tohoku University
Körper, D. (author)
Helmholtz Zentrum,Helmholtz Center
Koyama, S. (author)
University of Tokyo, Japan
Kuti, I. (author)
Magyar Tudomanyos Akademia,Hungarian Academy of Sciences
Lapoux, V. (author)
Université Paris-Saclay,University Paris-Saclay
Lindberg, Simon, 1987 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Marqués, F. M. (author)
Normandie University, France
Masuoka, S. (author)
University of Tokyo, Japan
Mayer, J. (author)
Universität zu Köln,University of Cologne
Miki, K. (author)
Tohoku University
Murakami, T. (author)
Kyoto University
Najafi, M. A. (author)
Rijksuniversiteit Groningen,University of Groningen
Nakamura, T. (author)
RIKEN,Tokyo Institute of Technology
Nakano, K. (author)
Kyushu University
Nakatsuka, N. (author)
Kyoto University
Nilsson, Thomas, 1965 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Obertelli, A. (author)
Université Paris-Saclay,University Paris-Saclay
Ogata, K. (author)
Osaka University,Kyushu University,Osaka Metropolitan University
De Oliveira-Santos, F. (author)
Grand Accélérateur National d'Ions Lourds (GANIL)
Orr, N. A. (author)
Normandie University, France
Otsu, H. (author)
RIKEN
Otsuka, T. (author)
University of Tokyo, Japan,RIKEN
Ozaki, T. (author)
Tokyo Institute of Technology
Panin, V. (author)
RIKEN
Papenbrock, T. (author)
Oak Ridge National Laboratory,University of Tennessee
Paschalis, S. (author)
Technische Universität Darmstadt
Revel, A. (author)
Normandie University, France,Grand Accélérateur National d'Ions Lourds (GANIL)
Rossi, D. (author)
Technische Universität Darmstadt
Saito, A. T. (author)
Tokyo Institute of Technology
Saito, T. Y. (author)
University of Tokyo, Japan
Sasano, M. (author)
RIKEN
Sato, H. (author)
RIKEN
Satou, Y. (author)
Seoul National University
Scheit, H. (author)
Technische Universität Darmstadt
Schindler, F. (author)
Technische Universität Darmstadt
Schrock, P. (author)
University of Tokyo, Japan
Shikata, M. (author)
Tokyo Institute of Technology
Shimizu, N. (author)
University of Tsukuba
Shimizu, Y. (author)
RIKEN
Simon, H. (author)
Helmholtz Zentrum,Helmholtz Center
Sohler, D. (author)
Magyar Tudomanyos Akademia,Hungarian Academy of Sciences
Sorlin, Olivier (author)
Grand Accélérateur National d'Ions Lourds (GANIL)
Stuhl, L. (author)
Institute for Basic Science,RIKEN
Sun, Z. H. (author)
Oak Ridge National Laboratory,University of Tennessee
Takeuchi, S. (author)
Tokyo Institute of Technology
Tanaka, M. (author)
Osaka University
Thoennessen, M. (author)
Michigan State University
Törnqvist, Hans, 1985 (author)
Helmholtz Zentrum,Helmholtz Center,Technische Universität Darmstadt
Togano, Y. (author)
Rikkyo University,Tokyo Institute of Technology
Tomai, T. (author)
Tokyo Institute of Technology
Tscheuschner, J. (author)
Technische Universität Darmstadt
Tsubota, J. (author)
Tokyo Institute of Technology
Tsunoda, N. (author)
University of Tokyo, Japan
Uesaka, T. (author)
RIKEN
Utsuno, Y. (author)
Japan Atomic Energy Agency
Vernon, I. (author)
Durham University
Wang, H. (author)
RIKEN
Yang, Z. (author)
RIKEN
Yasuda, M. (author)
Tokyo Institute of Technology
Yoneda, K. (author)
RIKEN
Yoshida, S. (author)
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 (creator_code:org_t)
2023
2023
English.
In: Nature. - 0028-0836 .- 1476-4687. ; 620:7976, s. 965-970
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • 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

NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (hsv//eng)
NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

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By the author/editor
Kondo, Y.
Achouri, N. L.
Falou, H. A.
Atar, L.
Aumann, T.
Baba, H.
show more...
Boretzky, K.
Caesar, C.
Calvet, D.
Chae, H.
Chiga, N.
Corsi, A.
Delaunay, F.
Delbart, A.
Deshayes, Q.
Dombrádi, Zs
Douma, C. A.
Ekström, Andreas ...
Elekes, Z.
Forssén, Christi ...
Gasparic, I.
Gheller, J. M.
Gibelin, J.
Gillibert, A.
Hagen, G.
Harakeh, M. N.
Hirayama, A.
Hoffman, C. R.
Holl, M.
Horvat, A.
Horváth,
Hwang, J. W.
Isobe, T.
Jiang, Weiguang, ...
Kahlbow, J.
Kalantar-Nayesta ...
Kawase, S.
Kim, S.
Kisamori, K.
Kobayashi, T.
Körper, D.
Koyama, S.
Kuti, I.
Lapoux, V.
Lindberg, Simon, ...
Marqués, F. M.
Masuoka, S.
Mayer, J.
Miki, K.
Murakami, T.
Najafi, M. A.
Nakamura, T.
Nakano, K.
Nakatsuka, N.
Nilsson, Thomas, ...
Obertelli, A.
Ogata, K.
De Oliveira-Sant ...
Orr, N. A.
Otsu, H.
Otsuka, T.
Ozaki, T.
Panin, V.
Papenbrock, T.
Paschalis, S.
Revel, A.
Rossi, D.
Saito, A. T.
Saito, T. Y.
Sasano, M.
Sato, H.
Satou, Y.
Scheit, H.
Schindler, F.
Schrock, P.
Shikata, M.
Shimizu, N.
Shimizu, Y.
Simon, H.
Sohler, D.
Sorlin, Olivier
Stuhl, L.
Sun, Z. H.
Takeuchi, S.
Tanaka, M.
Thoennessen, M.
Törnqvist, Hans, ...
Togano, Y.
Tomai, T.
Tscheuschner, J.
Tsubota, J.
Tsunoda, N.
Uesaka, T.
Utsuno, Y.
Vernon, I.
Wang, H.
Yang, Z.
Yasuda, M.
Yoneda, K.
Yoshida, S.
show less...
About the subject
NATURAL SCIENCES
NATURAL SCIENCES
and Physical Science ...
and Subatomic Physic ...
NATURAL SCIENCES
NATURAL SCIENCES
and Physical Science ...
and Astronomy Astrop ...
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Nature
By the university
Chalmers University of Technology

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