Experimental cross section of 144Sm(α, γ)148Gd and implications for the p-process

E. Somorjai, Zs Fülöp, Á Z. Kiss, C. E. Rolfs, H. P. Trautvetter, U. Greife, M. Junker, S. Goriely, M. Arnould, M. Rayet, T. Rauscher, H. Oberhummer

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Abstract

The cross section of the 144Sm(α,γ)148Gd reaction has been measured at bombarding energies in the 10.5-13.4 MeV range using an activation method based on the off-line α-activity measurement of the 148Gd residual nucleus. The long measuring time of the α-decay has required the use of etched track detectors. The resulting cross sections and astrophysical S-factors are compared to new statistical model calculations. The measured data at low energies reflect the strong energy dependence of the optical potential which is found to affect significantly our predictions of the α-capture rate.

Original languageEnglish
Pages (from-to)1112-1116
Number of pages5
JournalAstronomy and Astrophysics
Volume333
Issue number3
Publication statusPublished - Dec 1 1998

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Keywords

  • Nuclear reactions, nucleosynthesis, abundances supernovae: General
  • Solar system: General

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Somorjai, E., Fülöp, Z., Kiss, Á. Z., Rolfs, C. E., Trautvetter, H. P., Greife, U., Junker, M., Goriely, S., Arnould, M., Rayet, M., Rauscher, T., & Oberhummer, H. (1998). Experimental cross section of 144Sm(α, γ)148Gd and implications for the p-process. Astronomy and Astrophysics, 333(3), 1112-1116.