@Article{n_TOFCollaborationMassimi_etal2017, author="n{\_}TOF Collaboration (Massimi, C. et al and Domingo-Pardo, C. and Giubrone, G. and Tain, J. L.", title="Neutron spectroscopy of Mg-26 states: Constraining the stellar neutron source Ne-22(alpha, n)Mg-25", journal="Physics Letters B", year="2017", publisher="Elsevier Science Bv", volume="768", pages="1--6", optkeywords="s Process; alpha+Ne-22; Neutron spectroscopy", abstract="This work reports on accurate, high-resolution measurements of the Mg-25(n, gamma)Mg-26 and Mg-25(n, tot) cross sections in the neutron energy range from thermal to about 300 keV, leading to a significantly improved Mg-25(n, gamma)Mg-26 parametrization. The relevant resonances for n+Mg-25 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 Mg-26. With this information experimental upper limits of the reaction rates for Ne-22(alpha, n)Mg-25 and Ne-22(alpha, gamma)Mg-26 were established, potentially leading to a significantly higher (alpha, n)/(alpha, gamma) ratio than previously evaluated. The impact of these results has been studied for stellar models in the mass range 2 to 25 M-circle dot. (C) 2017 The Author(s). Published by Elsevier B.V.", optnote="WOS:000400677700001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3112), last updated on Thu, 25 May 2017 15:46:51 +0000", issn="0370-2693", doi="10.1016/j.physletb.2017.02.025", opturl="http://arxiv.org/abs/1702.04520", opturl="https://doi.org/10.1016/j.physletb.2017.02.025", archivePrefix="arXiv", eprint="1702.04520", language="English" }