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The s-process branching at W-185

Sonnabend, K. and Mohr, P. and Vogt, K. and Zilges, A. and Mengoni, A. and Rauscher, T. and Beer, H. and Kappeler, F. and Gallino, R.. (2003) The s-process branching at W-185. The astrophysical journal. Part 1, Vol. 583, H. 1. pp. 506-513.

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Official URL: http://edoc.unibas.ch/dok/A5839288

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Abstract

The neutron capture cross section of the unstable nucleus W-185 has been derived from experimental photoactivation data of the inverse reaction W-186(gamma, n) W-185. The new result of sigma = 687 +/- 110 mbarn confirms the theoretically predicted neutron capture cross section of W-185 of sigma approximate to 700 mbarn at kT = 30 keV. A neutron density in the classical s-process of n(n) = (3.8(-0.9)(+1.1)) x 10(8) cm(-3) is derived from the new data for the W-185 branching. In a stellar s-process model, one finds a significant overproduction of the residual s-only nucleus Os-186.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Astrophysik (Thielemann)
UniBasel Contributors:Rauscher, Thomas
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:University of Chicago Press
ISSN:0004-637X
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:27 Mar 2014 13:12
Deposited On:14 Sep 2012 06:44

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