NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = L.Roberti Found 3 matches. 2024BO09 Universe 10, 148 (2024) The Physics of Core-Collapse Supernovae: Explosion Mechanism and Explosive Nucleosynthesis
doi: 10.3390/universe10030148
2021CH38 Astrophys.J. 916, 79 (2021) A.Chieffi, L.Roberti, M.Limongi, M.La Cognata, L.Lamia, S.Palmerini, R.G.Pizzone, R.Sparta, A.Tumino Impact of the New Measurement of the 12C + 12C Fusion Cross Section on the Final Compactness of Massive Stars NUCLEAR REACTIONS 12C(12C, X)24Mg, E<1 MeV; analyzed available data; deduced impact on the dependence of the compactness on the initial mass with respect to previous findings by adopting the classical cross section.
doi: 10.3847/1538-4357/ac06ca
2021TE06 Phys.Rev. C 104, 015806 (2021) M.Tessler, J.Zappala, S.Cristallo, L.Roberti, M.Paul, S.Halfon, T.Heftrich, W.Jiang, D.Kijel, A.Kreisel, M.Limongi, Z.-T.Lu, P.Muller, R.Purtschert, R.Reifarth, A.Shor, D.Veltum, D.Vescovi, M.Weigand, L.Weissman Stellar s-process neutron capture cross sections on 78, 80, 84, 86Kr determined via activation, atom trap trace analysis, and decay counting NUCLEAR REACTIONS 78,80,84,86Kr(n, γ)79Kr/79mKr/80Kr/81Kr/81mKr/84Kr/85Kr/85mKr/87Kr, kT=42.5 keV, quasi-Maxwellian; 80,86Kr(γ, n)79Kr/85mKr, E=14.6, 17.6 MeV; measured Eγ, Iγ, average σ(E), 81Kr/80Kr and 85Kr/84Kr isotopic ratios in (n, γ) reactions by activation method, Atom Trap Trace Analysis (ATTA) and decay counting at SARAF-LiLiT facility, Argonne National Laboratory and low-level counting (LLC) facility of the University of Bern; deduced Maxwellian-averaged cross sections (MACS) at kt=3-300 keV, and stellar reaction rates for s-process in 0.01-4 GK range for (n, γ) reactions. 197Au(n, γ)198Au, kT=42.5 keV; 197Au(γ, n)196Au, E=14.6, 17.6 MeV; measured Eγ, Iγ, used as monitor reactions. Comparison with previous experimental cross sections, and with data in JEFF-3.3 library. Discussed astrophysical implications, and impact on s-process calculations of abundances of krypton and neighboring nuclides. RADIOACTIVITY 79Kr(EC); 85mKr(IT); 85mKr, 87Kr(β-)[from 78,84,86Kr(n, γ), kT=42.5 keV]; measured half-lives from γ-decay curves and compared with evaluated data.
doi: 10.1103/PhysRevC.104.015806
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