MASSIMI, C.; KOEHLER, P.; BISTERZO, S.; COLONNA, N.; GALLINO, R.; GUNSING, F.; KÄPPELER, F.; LORUSSO, G.; MENGONI, A.; PIGNATARI, M.; VANNINI, G.; ABBONDANNO, U.; AERTS, G.; ALVAREZ, H.; ALVAREZ-VELARDE, F.; ANDRIAMONJE, S.; ANDRZEJEWSKI, J.; ASSIMAKOPOULOS, P.; AUDOUIN, L.; BADUREK, G.; BARBAGALLO, M.; BAUMANN, P.; BECVAR, F.; BELLONI, F.; BENNETT, M.; BERTHOUMIEUX, E.; CALVIANI, M.; CALVINO, F.; CANO-OTT, D.; CAPOTE, R.; CARRAPIÇO, C.; CARRILLO DE ALBORNOZ, A.; CENNINI, P.; CHEPEL, V.; CHIAVERI, E.; CORTES, G.; COUTURE, A.; COX, J.; DAHLFORS, M.; DAVID, S.; DILLMANN, I.; DOLFINI, R.; DOMINGO-PARDO, C.; DRIDI, W.; DURAN, I.; ELEFTHERIADIS, C.; EMBID-SEGURA, M.; FERRANT, L.; FERRARI, Anthony; FERREIRA-MARQUES, R.; FITZPATRICK, L.; FRAIS-KOELBL, H.; FUJII, K.; FURMAN, W.; GONCALVES, I.; GONZALEZ-ROMERO, E.; GOVERDOVSKI, A.; GRAMEGNA, F.; GRIESMAYER, E.; GUERRERO, C.; HAAS, B.; HAIGHT, R.; HEIL, M.; HERRERA-MARTINEZ, A.; HERWIG, F.; HIRSCHI, R.; IGASHIRA, M.; ISAEV, S.; JERICHA, E.; KADI, Y.; KARADIMOS, D.; KARAMANIS, D.; KERVENO, M.; KETLEROV, V.; KONOVALOV, V.; KOPECKY, S.; KOSSIONIDES, E.; KRTICKA, M.; LAMPOUDIS, C.; LEEB, H.; LEDERER, C.; LINDOTE, A.; LOPES, I.; LOSITO, R.; LOZANO, M.; LUKIC, S.; MARGANIEC, J.; MARQUES, L.; MARRONE, S.; MARTINEZ, T.; MASTINU, P.; MENDOZA, E.; M. MILAZZO, P.; MOREAU, C.; MOSCONI, M.; NEVES, F.; OBERHUMMER, H.; O'BRIEN, S.; OSHIMA, M.; PANCIN, J.; PAPACHRISTODOULOU, C.; PAPADOPOULOS, C.; PARADELA, C.; PATRONIS, N.; PAVLIK, A.; PAVLOPOULOS, P.; PERROT, L.; T. PIGNI, M.; PLAG, R.; PLOMPEN, A.; PLUKIS, A.; POCH, A.; PRAENA, J.; PRETEL, C.; QUESADA, J.; RAUSCHER, T.; ROCKEFELLER, G.; ROSETTI, M.; RUBBIA, C.; RUDOLF, G.; SALGADO, J.; SANTOS, C.; SARCHIAPONE, L.; SAVVIDIS, I.; TAGLIENTE, G.; L. TAIN, J.; TARRIO, D.; TAVORA, L.; TERLIZZI, R.; VAZ, P.; VENTURA, A.; VILLAMARIN, D.; VLACHOUDIS, V.; VLASTOU, R.; VOSS, F.; WALTER, S.; WENDLER, H.; WIESCHER, M.; WISSHAK, K.; TASSAN-GOT, L.; STEPHAN, C.

doi:10.1103/PhysRevC.85.044615

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Physical Review C. 2012, vol. 85, p. 044615

American Physical Society

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We have measured the neutron capture cross sections of the stable magnesium isotopes 24,25,26Mg in the energy range of interest to the s process using the neutron time-of-flight facility n_TOF at CERN. Capture events from a natural metal sample and from samples enriched in 25Mg and 26Mg were recorded using the total energy method based on C6 2H6 detectors. Neutron resonance parameters were extracted by a simultaneous resonance shape analysis of the present capture data and existing transmission data on a natural isotopic sample. Maxwellian-averaged capture cross sections for the three isotopes were calculated up to thermal energies of 100 keV and their impact on s-process analyses was investigated. At 30 keV the new values of the stellar cross section for 24Mg, 25Mg, and 26Mg are 3.8±0.2 mb, 4.1±0.6 mb, and 0.14±0.01 mb, respectively.< Réduire

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Resonance neutron-capture cross sections of stable magnesium isotopes and their astrophysical implications

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