Nuclear Astrophysics

The European Physical Journal A - Hadrons and Nuclei

, Volume 28, Issue 2, pp 251-252

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

  • B. LimataAffiliated withDipartimento di Scienze Ambientali, Seconda Università di NapoliINFN
  • , F. RaiolaAffiliated withExperimentalphysik III, Ruhr-Universität Bochum
  • , B. WangAffiliated withChina Institute of Atomic Energy
  • , S. YanAffiliated withChina Institute of Atomic Energy
  • , H. W. BeckerAffiliated withDynamitron-Tandem-Laboratorium, Ruhr-Universität Bochum
  • , A. D'OnofrioAffiliated withDipartimento di Scienze Ambientali, Seconda Università di NapoliINFN
  • , L. GialanellaAffiliated withINFNDipartimento di Scienze Fisiche, Università Federico II
  • , V. RocaAffiliated withINFNDipartimento di Scienze Fisiche, Università Federico II
  • , C. RolfsAffiliated withExperimentalphysik III, Ruhr-Universität Bochum Email author 
    • , M. RomanoAffiliated withINFNDipartimento di Scienze Fisiche, Università Federico II
    • , D. SchürmannAffiliated withExperimentalphysik III, Ruhr-Universität Bochum
    • , F. StriederAffiliated withExperimentalphysik III, Ruhr-Universität Bochum
    • , F. TerrasiAffiliated withDipartimento di Scienze Ambientali, Seconda Università di NapoliINFN

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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