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    Beyond the neutron drip line: The unbound oxygen isotopes (25)O and (26)O

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    Wilson_2013_PRC_88(3)34313.pdf (923.2Kb)
    Issue Date
    2013-09-16
    Author
    Wilson, Graham Wallace
    Caesar, C.
    Simonis, J.
    Adachi, T.
    Aksyutina, Y.
    Alcantara, J.
    Altstadt, S.
    Alvarez-Pol, H.
    Ashwood, N. I.
    Aumann, T.
    Avdeichikov, V.
    Barr, M.
    Beceiro, S.
    Bemmerer, D.
    Benlliure, J.
    Bertulani, C. A.
    Boretzky, K.
    Publisher
    American Physical Society
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
    Show full item record
    Abstract
    The very neutron-rich oxygen isotopes 25O and 26O are investigated experimentally and theoretically. The unbound states are populated in an experiment performed at the R3B-LAND setup at GSI via proton-knockout reactions from 26F and 27F at relativistic energies around 442 and 414 MeV/nucleon, respectively. From the kinematically complete measurement of the decay into 24O plus one or two neutrons, the 25O ground-state energy and width are determined, and upper limits for the 26O ground-state energy and lifetime are extracted. In addition, the results provide indications for an excited state in 26O at around 4 MeV. The experimental findings are compared to theoretical shell-model calculations based on chiral two- and three-nucleon (3N) forces, including for the first time residual 3N forces, which are shown to be amplified as valence neutrons are added.
    Description
    This is the publisher's version, and is also available electronically from http://journals.aps.org/prc/abstract/10.1103/PhysRevC.88.034313.
    URI
    http://hdl.handle.net/1808/17879
    DOI
    https://doi.org/10.1103/PhysRevC.88.034313
    Collections
    • Physics & Astronomy Scholarly Works [1713]
    Citation
    Caesar, C. et al. (2013). "Beyond the neutron drip line: The unbound oxygen isotopes (25)O and (26)O." Physical Review C, 88(3):34313. http://www.dx.doi.org/10.1103/PhysRevC.88.034313.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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