Massimi, C.C.MassimiAltstadt, S.S.AltstadtAndrzejewski, J.J.AndrzejewskiAudouin, L.L.AudouinBarbagallo, M.M.BarbagalloBécares, V.V.BécaresBečvář, F.F.BečvářBelloni, F.F.BelloniBerthoumieux, E.E.BerthoumieuxBillowes, J.J.BillowesBisterzo, S.S.BisterzoBosnar, D.D.BosnarBrugger, M.M.BruggerCalviani, M.M.CalvianiCalviño, F.F.CalviñoCano-Ott, D.D.Cano-OttCarrapiço, C.C.CarrapiçoCastelluccio, D. M.D. M.CastelluccioCerutti, F.F.CeruttiChiaveri, E.E.ChiaveriCosentino, L.L.CosentinoChin, M.M.ChinClai, G.G.ClaiColonna, N.N.ColonnaCortés, G.G.CortésCortés-Giraldo, M. A.M. A.Cortés-GiraldoCRISTALLO, SergioSergioCRISTALLODiakaki, M.M.DiakakiDomingo-Pardo, C.C.Domingo-PardoDuran, I.I.DuranDressler, R.R.DresslerEleftheriadis, C.C.EleftheriadisFerrari, A.A.FerrariFinocchiaro, P.P.FinocchiaroFraval, K.K.FravalGanesan, S.S.GanesanGarcía, A. R.A. R.GarcíaGiubrone, G.G.GiubroneGonçalves, I. F.I. F.GonçalvesGonzález-Romero, E.E.González-RomeroGriesmayer, E.E.GriesmayerGuerrero, C.C.GuerreroGunsing, F.F.GunsingHernández-Prieto, A.A.Hernández-PrietoJenkins, D. G.D. G.JenkinsJericha, E.E.JerichaKadi, Y.Y.KadiKäppeler, F.F.KäppelerKaradimos, D.D.KaradimosKivel, N.N.KivelKoehler, P.P.KoehlerKokkoris, M.M.KokkorisKopecky, S.S.KopeckyKrtička, M.M.KrtičkaKroll, J.J.KrollLampoudis, C.C.LampoudisLanger, C.C.LangerLeal-Cidoncha, E.E.Leal-CidonchaLederer, C.C.LedererLeeb, H.H.LeebLeong, L. S.L. S.LeongLo Meo, S.S.Lo MeoLosito, R.R.LositoMallick, A.A.MallickManousos, A.A.ManousosMarganiec, J.J.MarganiecMartínez, T.T.MartínezMastinu, P. F.P. F.MastinuMastromarco, M.M.MastromarcoMendoza, E.E.MendozaMengoni, A.A.MengoniMilazzo, P. M.P. M.MilazzoMingrone, F.F.MingroneMirea, M.M.MireaMondelaers, W.W.MondelaersMusumarra, A.A.MusumarraParadela, C.C.ParadelaPavlik, A.A.PavlikPerkowski, J.J.PerkowskiPignatari, M.M.PignatariPIERSANTI, LucianoLucianoPIERSANTIPlompen, A.A.PlompenPraena, J.J.PraenaQuesada, J. M.J. M.QuesadaRauscher, T.T.RauscherReifarth, R.R.ReifarthRiego, A.A.RiegoRobles, M. S.M. S.RoblesRubbia, C.C.RubbiaSabaté-Gilarte, M.M.Sabaté-GilarteSarmento, R.R.SarmentoSaxena, A.A.SaxenaSchillebeeckx, P.P.SchillebeeckxSchmidt, S.S.SchmidtSchumann, D.D.SchumannTagliente, G.G.TaglienteTain, J. L.J. L.TainTarrío, D.D.TarríoTassan-Got, L.L.Tassan-GotTsinganis, A.A.TsinganisValenta, S.S.ValentaVannini, G.G.VanniniVan Rijs, I.I.Van RijsVariale, V.V.VarialeVaz, P.P.VazVentura, A.A.VenturaVermeulen, M. J.M. J.VermeulenVlachoudis, V.V.VlachoudisVlastou, R.R.VlastouWallner, A.A.WallnerWare, T.T.WareWeigand, M.M.WeigandWeiß, C.C.WeißWynants, R.R.WynantsWright, T.T.WrightŽugec, P.P.Žugec2020-08-272020-08-2720170370-2693http://hdl.handle.net/20.500.12386/26872This work reports on accurate, high-resolution measurements of the <SUP>25</SUP>Mg(n , γ)<SUP>26</SUP>Mg and <SUP>25</SUP>Mg(n , tot) cross sections in the neutron energy range from thermal to about 300 keV, leading to a significantly improved <SUP>25</SUP>Mg(n , γ)<SUP>26</SUP>Mg parametrization. The relevant resonances for n+<SUP>25</SUP>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 <SUP>26</SUP>Mg. With this information experimental upper limits of the reaction rates for <SUP>22</SUP>Ne(α , n)<SUP>25</SUP>Mg and <SUP>22</SUP>Ne(α , γ)<SUP>26</SUP>Mg were established, potentially leading to a significantly higher (α , n) / (α , γ) ratio than previously evaluated. The impact of these results has been studied for stellar models in the mass range 2 to 25 M<SUB>☉</SUB>.STAMPAenArticle10.1016/j.physletb.2017.02.0252-s2.0-85013801903000400677700001https://www.sciencedirect.com/science/article/pii/S0370269317301260?via%3Dihub2017PhLB..768....1MFIS/04 - FISICA NUCLEARE E SUBNUCLEAREScienze Fisiche Settori ERC (ERC) di riferimento::PE2 Fundamental constituents of matter: particle, nuclear, plasma, atomic, molecular, gas, and optical plasma