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The European Physical Journal A

, Volume 46, Issue 1, pp 45–53 | Cite as

Systematics of Gamow-Teller beta decay “Southeast” of 100Sn

  • L. BatistEmail author
  • M. Górska
  • H. Grawe
  • Z. Janas
  • M. Kavatsyuk
  • M. Karny
  • R. Kirchner
  • M. La Commara
  • I. Mukha
  • A. Plochocki
  • E. Roeckl
Open Access
Regular Article - Experimental Physics

Abstract.

The energy centroids and integrated strengths of Gamow-Teller transitions in the \( \beta^{+}_{}\) and electron-capture decay are analyzed for nuclei whose proton number Z and neutron number N are restricted to 44 \( \leq\) Z \( \leq\) 50 and 50 \( \leq\) N \( \leq\) 58 . The analysis is based on data measured both with high-resolution \( \gamma\) -ray spectrometry and total \( \gamma\) -ray absorption techniques. The dependence of the considered quantities on the relative neutron excess are established after taking into account the effects due to the Coulomb interaction and mean-field level occupancies. An extrapolation of this dependence to the lightest known tin isotopes is used to estimate the decay characteristics of 100Sn and 101Sn . The values extrapolated for the half-lives of 100Sn and 101Sn agree with experimental data. Using the extrapolated values together with shell model predictions, the Q values for the electron-capture decay of 100Sn is evaluated. The quenching factor for \( \beta^{+}_{}\) and the electron-capture decay of the nuclei under consideration here is established to be 0.56(2) with a possible weak dependence on N - Z .

Keywords

Shell Model Calculation Isotopic Dependence Energy Centroid Total Absorption Spectrometer Shell Model Monte Carlo 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© The Author(s) 2010

Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

Authors and Affiliations

  • L. Batist
    • 1
    • 2
    • 3
    Email author
  • M. Górska
    • 2
  • H. Grawe
    • 2
  • Z. Janas
    • 5
  • M. Kavatsyuk
    • 4
  • M. Karny
    • 5
  • R. Kirchner
    • 2
  • M. La Commara
    • 6
  • I. Mukha
    • 2
    • 7
  • A. Plochocki
    • 5
  • E. Roeckl
    • 2
  1. 1.St. Petersburg Nuclear Physics InstituteGatchinaRussia
  2. 2.GSI Helmholtzzentrum für SchwerionenforschungDarmstadtGermany
  3. 3.Max-Planck-Institut für KernphysikHeidelbergGermany
  4. 4.KVIUniversity of GroningenAA GroningenThe Netherlands
  5. 5.Institute of Experimental PhysicsUniversity of WarsawWarsawPoland
  6. 6.Department of PhysicsUniversity Federico II, and INFN-NapoliNapoliItaly
  7. 7.IFICValenciaSpain

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