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Neutron spectroscopy of 26Mg states: constraining the stellar neutron sources 22Ne(a,n)25Mg

Massimi, C.; Altstadt, S.; Andrzejewski, J.; Audouin, L; Barbagallo, M; Becares, V; Becvar, F; Belloni, F; Berthoumieux, E.; Billowes, J.; Bisterzo, Sara; Bosnar, D.; Brugger, M; Calviani, M; Calvino, F; Wallner, Anton


This work reports on accurate, high-resolution measurements of the 25Mg()26Mg and 25Mg() cross sections in the neutron energy range from thermal to about 300 keV, leading to a significantly improved 25Mg()26Mg parametrization. The relevant resonances for Mg were characterized from a combined R-matrix analysis of the experimental data. This resulted in an unambiguous spin/parity assignment of the corresponding excited states in 26Mg. With this information experimental upper limits of the...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Physics Letters B
DOI: 10.1016/j.physletb.2017.02.025
Access Rights: Open Access


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