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arXiv · 1001.1906

Stellar (n,gamma) cross sections of p-process isotopes PartI: 102Pd, 120Te, 130,132Ba,and 156Dy

I. Dillmann·C. Domingo-Pardo·M. Heil·F. Kaeppeler·S. Walter·S. Dababneh·T. Rauscher·F. -K. Thielemann
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Abstract

We have investigated the (n,gamma) cross sections of p-process isotopes with the activation technique. The measurements were carried out at the Karlsruhe Van de Graaff accelerator using the 7Li(p,n)7Be source for simulating a Maxwellian neutron distribution of kT = 25 keV. Stellar cross section measurements are reported for the light p-process isotopes 102Pd, 120Te, 130,132Ba, and 156Dy. In a following paper the cross sections of 168Yb, 180W, 184Os, 190Pt, and 196Hg will be discussed. The data are extrapolated to p-process energies by including information from evaluated nuclear data libraries. The results are compared to standard Hauser-Feshbach models frequently used in astrophysics.

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I. Dillmann, C. Domingo-Pardo, M. Heil, F. Kaeppeler, S. Walter, S. Dababneh, T. Rauscher, F. -K. Thielemann. 2010-01-12. Stellar (n,gamma) cross sections of p-process isotopes PartI: 102Pd, 120Te, 130,132Ba,and 156Dy. https://doi.org/10.1103/physrevc.81.015801

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