Physics – Nuclear Physics
Scientific paper
Oct 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..dnp.gf009k&link_type=abstract
American Physical Society, Division of Nuclear Physics Fall Meeting, October 30 - November 1, 2003, Tucson, Arizona, MEETING ID:
Physics
Nuclear Physics
Scientific paper
The new n_TOF facility at CERN offers a number of features that open new experimental approaches for measuring neutron capture cross sections of interest for astrophysics, in particular for neutron capture nucleosynthesis during stellar He burning (s process). Presently, these efforts concentrate on light or neutron magic nuclei, which are difficult to investigate because of their small (n,γ) cross sections as well as on unstable nuclei, which act as branching points in the reaction flow of the s process. In this context, preliminary results will be presented for the unstable isotope ^151Sm (t_1/2 = 93 yr) and for the stable Pb isotopes. The astrophysical impact of these results for the branching in the s-process reaction flow at A=151 as well as for the abundance pattern at the termination point of the s process in the Pb-Bi region will be presented.
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