First hints on a change of the 22Na βdecay half-life in the metal Pd

  • B. Limata
  • F. Raiola
  • B. Wang
  • S. Yan
  • H. W. Becker
  • A. D'Onofrio
  • L. Gialanella
  • V. Roca
  • C. Rolfs
  • M. Romano
  • D. Schürmann
  • F. Strieder
  • F. Terrasi
Nuclear Astrophysics

Abstract.

For the β+-decay of 22Na in the metallic environment Pd cooled to T = 12 K the 22Na half-life was observed to be shorter by 1.2±0.2%. The result is consistent with --but lower than-- the prediction of the Debye plasma model.

PACS.

26.20.+f Hydrostatic stellar nucleosynthesis 27.30.+t 20 ⩽ A ⩽ 38 21.10.Tg Lifetimes 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2006

Authors and Affiliations

  • B. Limata
    • 1
    • 2
  • F. Raiola
    • 3
  • B. Wang
    • 4
  • S. Yan
    • 4
  • H. W. Becker
    • 5
  • A. D'Onofrio
    • 1
    • 2
  • L. Gialanella
    • 6
    • 2
  • V. Roca
    • 6
    • 2
  • C. Rolfs
    • 3
  • M. Romano
    • 6
    • 2
  • D. Schürmann
    • 3
  • F. Strieder
    • 3
  • F. Terrasi
    • 1
    • 2
  1. 1.Dipartimento di Scienze AmbientaliSeconda Università di NapoliCasertaItaly
  2. 2.INFNNapoliItaly
  3. 3.Experimentalphysik IIIRuhr-Universität BochumBochumGermany
  4. 4.China Institute of Atomic EnergyBeijingPRC
  5. 5.Dynamitron-Tandem-LaboratoriumRuhr-Universität BochumBochumGermany
  6. 6.Dipartimento di Scienze FisicheUniversità Federico IINapoliItaly

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