Elsevier

Nuclear Physics A

Volume 757, Issues 3–4, 22 August 2005, Pages 315-328
Nuclear Physics A

Search for an isomeric state in 19C

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Abstract

A search for an isomeric state in the neutron-rich nucleus 19C is reported. The existence of an isomer in the nucleus is predicted by shell model calculations which also predicts the ground-state of the nucleus to be 1/2+. An isomeric transition is however not observed in the present investigation. An estimation of upper limit of isomer ratio in the beam is discussed. Furthermore, the non-observation of an isomer includes the possibility of 19C having a different ground state spin. The 17C and 17B nuclei were also investigated for delayed gamma transitions but do not exhibit any isomeric transition.

References (26)

  • T. Werner

    Phys. Lett. B

    (1994)
  • S. Nummela

    Phys. Rev. C

    (2001)
  • R. Kanungo

    Phys. Lett. B

    (2002)
  • E.K. Warburton

    Phys. Rev. C

    (1992)
    B.A. Brown, private communication,...
  • V. Maddalena

    Phys. Rev. C

    (2001)
  • M. Stanoiu

    Eur. Phys. J. A

    (2004)
  • Z. Elekes, et al., Phys. Lett. B, in...
  • A. Ozawa

    Nucl. Phys. A

    (1995)
  • J.P. Dufour

    Z. Phys. A

    (1986)
  • N. Orr

    Phys. Lett. B

    (1991)
    J. Wouters

    Z. Phys. A

    (1998)
  • P. Marmier, E. Sheldon, Physics of Nuclei and Particles, vol. II, Academic Press, San Diego, and references...
  • R. Grzywacz

    Phys. Rev. Lett.

    (1998)
    M. Lewitowicz

    Nucl. Phys. A

    (1999)
    H. Grawe

    Nucl. Phys. A

    (2002)
  • M. Robinson

    Phys. Rev. C

    (1996)
  • Cited by (0)

    1

    Present address: TRIUMF, 4004, Wesbrook Mall, Vancouver, BC V6T 2A3, Canada.

    2

    Present address: Argonne National Laboratory, 9700S. Cass Avenue, Argonne, IL 60439, USA.

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