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New structure information on 30Mg, 31Mg and 32Mg

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The 4th International Conference on Exotic Nuclei and Atomic Masses

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Abstract

The fast timing βγγ(t) method was applied to investigate the level lifetimes in 30,31,32Mg. Levels in Mg have been populated in β and β-delayed neutron emission of Na at the ISOLDE facility. From the γγ coincidences a number of new states have been identified and new level schemes were constructed for 30,31,32Mg. The following preliminary half lives have been determined: T 1/2 = 3.9(4) ns for the 1789 keV state in 30Mg, T 1/2 = 133(8) ps and 10.5(8) ns for the 221 keV and 461 keV states in 31Mg, respectively, and T 1/2 = 16(4) ps for the 885 keV level in 32Mg. The 1789 keV level was established as a candidate for the intruder 0+ configuration in 30Mg with a possible strong E0 branch to the ground state.

Deceased.

In the memory of Weronika Płóciennik deceased on December 25, 2004. She was a young and talented researcher in experimental and theoretical physics.

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Author information

Authors and Affiliations

  1. Department of Radiation Sciences, Uppsala University, S-61182, Nyköping, Sweden

    H. Mach (Conference presenter) & B. Fogelberg

  2. Division EP, CERN, ISOLDE, CH-1211, Geneva, Switzerland

    L. M. Fraile, P. A. Butler, J. Cederkäll, U. Köster & T. Nilsson

  3. Universidad Complutense, E-28040, Madrid, Spain

    L. M. Fraile

  4. Instituto de Estructura de la Materia, CSIC, E-28006, Madrid, Spain

    O. Tengblad, R. Boutami & M. J. G. Borge

  5. Institut de Recherches Subatomiques, IN2P3-CNRS, F-67037, Strasbourg, Cedex 2, France

    C. Jollet, Ph. Dessagne & F. Marechal

  6. The Andrzej Sołtan Institute for Nuclear Studies, 05-400, Świerk, Poland

    W. A. Płóciennik & E. Ruchowska

  7. IKS, K.U. Leuven, Celestijnenlaan 200 D, 3001, Leuven, Belgium

    D. T. Yordanov & G. Neyens

  8. IPN, IN2P3-CNRS and Université Paris-Sud, F-91406, Orsay Cedex, France

    M. Stanoiu

  9. Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 3BX, UK

    P. A. Butler

  10. Department of Physics, Lund University, S-22100, Lund, Sweden

    J. Cederkäll

  11. Institut for Fysik og Astronomi, Aarhus Universitet, DK-8000, Aarhus C, Denmark

    H. Fynbo & S. Pedersen

  12. Department of Chemistry, University of Oslo, P.O. Box 1033, N-0315, Blindern, Oslo, Norway

    P. Hoff

  13. Department of Physics, University of Jyväskylä, P.O. Box 35 (yfl), FIN-40014, Finland

    A. Jokinen

  14. Institute of Experimental Physics, Warsaw University, Hoża 69, PL 00-681, Warsaw, Poland

    A. Korgul & W. Kurcewicz

  15. RIKEN, Hirosawa 2-1, Wako, Saitama, 351-0198, Japan

    T. Motobayashi

  16. Nuclear Physics Institute, 25068, Rez, Czech Republic

    J. Mrazek

  17. Departamento de Física Teórica C-XI, Universidad Autónoma de Madrid, E-28049, Madrid, Spain

    A. Poves

  18. Instituto de Física Corpuscular, CSIC University of Valencia, E-46071, Valencia, Spain

    B. Rubio

Authors
  1. H. Mach
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  2. L. M. Fraile
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  3. O. Tengblad
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  4. R. Boutami
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  5. C. Jollet
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  6. W. A. Płóciennik
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  7. D. T. Yordanov
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  8. M. Stanoiu
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  9. M. J. G. Borge
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  10. P. A. Butler
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  11. J. Cederkäll
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  12. Ph. Dessagne
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  13. B. Fogelberg
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  14. H. Fynbo
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  15. P. Hoff
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  16. A. Jokinen
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  17. A. Korgul
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  18. U. Köster
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  19. W. Kurcewicz
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  20. F. Marechal
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  21. T. Motobayashi
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  22. J. Mrazek
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  23. G. Neyens
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  24. T. Nilsson
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  25. S. Pedersen
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  26. A. Poves
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  27. B. Rubio
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  28. E. Ruchowska
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ISOLDE Collaboration

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Editors and Affiliations

  1. Physics Division, Oak Ridge National Laboratory, Bldg. 6000, MS-6371, Oak Ridge, TN, 37831-6371, USA

    Carl J. Gross  & Krzysztof P. Rykaczewski  & 

  2. Department of Physics and Astronomy, 401 Nielsen Physics Building, Knoxville, TN, 37996-1200, USA

    Witold Nazarewicz

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© 2005 Società Italiana di Fisica / Springer-Verlag

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Mach, H. et al. (2005). New structure information on 30Mg, 31Mg and 32Mg. In: Gross, C.J., Nazarewicz, W., Rykaczewski, K.P. (eds) The 4th International Conference on Exotic Nuclei and Atomic Masses. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-37642-9_31

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  • DOI: https://doi.org/10.1007/3-540-37642-9_31

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-28441-3

  • Online ISBN: 978-3-540-37642-2

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