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Strong gamma-ray emission from neutron unbound states populated in beta-decay: Impact on (n,gamma) cross-section estimates



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Fraile Prieto, Luis Mario (2017) Strong gamma-ray emission from neutron unbound states populated in beta-decay: Impact on (n,gamma) cross-section estimates. In ND 2016: International conference on nuclear data for science and technology. EPJ Web of Conferences (146). E D P Sciences. ISBN 978-2-7598-9020-0

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Official URL: http://dx.doi.org/10.1051/epjconf/201714601002


Total absorption gamma-ray spectroscopy is used to measure accurately the intensity of gamma emission from neutron-unbound states populated in the β-decay of delayed-neutron emitters. From the comparison of this intensity with the intensity of neutron emission one can deduce information on the (n,γ) cross section for unstable neutron-rich nuclei of interest in r process abundance calculations. A surprisingly large gamma branching was observed for a number of isotopes. The results are compared with Hauser-Feshbach calculations and discussed.

Item Type:Book Section
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© The Authors, published by EDP Sciences.
International Conference on Nuclear Data for Science and Technology (ND) (2016. Bruges, Belgica).
Artículo firmado por más de diez autores
This work was supported by Spanish Ministerio de Economía y Competitividad under grants FPA2008-06419, FPA2010- 17142, FPA2011-24553, FPA2014-52823-C2-1-P, CPAN CSD2007-00042 (Ingenio2010) and the program Severo Ochoa (SEV-2014- 0398). WG would like to thank the University of Valencia for support. This work was supported by the Academy of Finland under the Finnish Centre of Excellence Programme 2012-2017 (Project No. 21350). Work supported by EPSRC(UK) and STFC(UK) and the UK National Measurement Office. Work supported by the European Commission under the FP7/EURATOM contract 605203. FGK acknowledges support from the U.S. Department of Energy, under contract number DEAC02-06CH11357.

Uncontrolled Keywords:Total absorption spectrometer; Monte-carlo-simulation; Nuclear-eactions; Spectra; Models
Subjects:Sciences > Physics > Nuclear physics
ID Code:47693
Deposited On:11 Jul 2018 12:02
Last Modified:10 Dec 2018 14:57

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