University of Hertfordshire

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By the same authors


  • 904930

    Submitted manuscript, 998 KB, PDF document

  • G. G. Kiss
  • Gy. Gyuerky
  • Z. Elekes
  • Zs. Fueloep
  • E. Somorjai
  • T. Rauscher
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Original languageEnglish
Article number055807
Number of pages9
JournalPhysical Review C
Journal publication dateNov 2007
Publication statusPublished - Nov 2007


The cross sections of the (70)Ge(p,gamma)(71)As and (76)Ge(p,n)(76)As reactions have been measured with the activation method in the Gamow window for the astrophysical p process. The experiments were carried out at the Van de Graaff and cyclotron accelerators of ATOMKI. The cross sections have been derived by measuring the decay gamma-radiation of the reaction products. The results are compared to the predictions of Hauser-Feshbach statistical model calculations using the code NON-SMOKER. Good agreement between theoretical and experimental S factors is found. Based on the new data, modifications of the optical potential used for low-energy protons are discussed.

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