NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = A.Ornelas Found 5 matches. 2017GY01 Phys.Rev. C 95, 035805 (2017) Gy.Gyurky, A.Ornelas, Zs.Fulop, Z.Halasz, G.G.Kiss, T.Szucs, R.Huszank, I.Hornyak, I.Rajta, I.Vajda Cross section measurement of the astrophysically important 17O(p, γ)18F reaction in a wide energy range NUCLEAR REACTIONS 17O(p, γ)18F, E=500-1800 keV; measured Eγ, Iγ, half-life of 18F decay, σ(E) by activation method using Van de Graaff accelerator of Atomki; analyzed using R-matrix fit; deduced S factors. Comparison with previous experimental data. Relevance to hydrogen burning processes in different stages of stellar evolution.
doi: 10.1103/PhysRevC.95.035805
2016OR09 Phys.Rev. C 94, 055807 (2016) A.Ornelas, P.Mohr, Gy.Gyurky, Z.Elekes, Zs.Fulop, Z.Halasz, G.G.Kiss, E.Somorjai, T.Szucs, M.P.Takacs, D.Galaviz, R.T.Guray, Z.Korkulu, N.Ozkan, C.Yalcin alpha scattering and alpha-induced reaction cross sections of 64Zn at low energies NUCLEAR REACTIONS 64Zn(α, α), (α, α'), E=12.05, 16.12 MeV; measured scattered particle spectra, Eα, Iα, elastic σ(θ), inelastic σ(E) at the Atomki cyclotron facility; deduced total σ, parameters of optical potential, phase shifts and reflection coefficients using σ(θ) elastic data at Eα=13.4-50.5 MeV from previous studies and the present work, rise of the elastic cross sections at very backward angles considered as so-called anomalous large-angle elastic scattering (ALAS). 64Zn(α, γ), (α, p), (α, n), E=16.12 MeV; measured Eγ, Iγ, σ using activation technique. Comparison with theoretical calculations based on different global α-nucleus optical potentials, and Hartree-Fock BCS γ-ray strength for (α, γ) channel.
doi: 10.1103/PhysRevC.94.055807
2015OR03 Nucl.Phys. A940, 194 (2015) A.Ornelas, G.G.Kiss, P.Mohr, D.Galaviz, Zs.Fulop, Gy.Gyurky, Z.Mate, T.Rauscher, E.Somorjai, K.Sonnabend, A.Zilges The 106Cd(α, α)106Cd elastic scattering in a wide energy range for γ process studies NUCLEAR REACTIONS 106Cd(α, α), E=16.1, 17.7, 19.6 MeV; measured Eα, Iα(θ). 106Cd(α, α), E(cm)=15.6-26.0 MeV; calculated σ(θ) using ATOMKI-V1 optical potential; deduced optical model parameters from fit to available data. Potentials compared with those obtained by others using different potentials. 106Cd(α, n), (α, p), (α, γ), E(cm)=7-13 MeV; calculated S-factor using different potentials. Compared with data.
doi: 10.1016/j.nuclphysa.2015.04.008
2013KI11 Phys.Rev. C 88, 045804 (2013) G.G.Kiss, P.Mohr, Zs.Fulop, T.Rauscher, Gy.Gyurky, T.Szucs, Z.Halasz, E.Somorjai, A.Ornelas, C.Yalcin, R.T.Guray, N.Ozkan High precision 113In(α, α)113In elastic scattering at energies near the Coulomb barrier for the astrophysical γ process NUCLEAR REACTIONS 113In(α, α), E=16.15-19.15 MeV; measured E(α), I(α), σ(E, θ) at ATOMKI facility in Debrecen; deduced global α+nucleus optical model parameters. Comparison with reduced σ for 89Y+α, 92Mo+α, 106,110,116Cd+α, 112,124Sn+α and 144Sm+α reactions. 113In(α, γ)117Sb, 113In(α, n)116Sb, E=8-15 MeV; deduced astrophysical S(E) factor, σ ratio. Relevance to γ process for production of p nuclei in supernova explosions.
doi: 10.1103/PhysRevC.88.045804
2012OR03 J.Phys.:Conf.Ser. 337, 012030 (2012) A.Ornelas, D.Galaviz, Zs.Fulop, Gy.Gyurky, G.Kiss, Z.Mate, P.Mohr, T.Rauscher, E.Somorjai, K.Sonnabend, A.Zilges Investigation of α-nuclear potential families from elastic scattering experiments NUCLEAR REACTIONS 106Cd(α, γ), E(cm)=7-12 MeV;106Cd(α, n), E(cm)=10-12 MeV; calculated S-factor using various sets of optical model parameters. 106Cd(α, α), E=16.1-18.8 MeV; calculated σ(θ) using various sets of optical model parameters. Compared with published data of the same group.
doi: 10.1088/1742-6596/337/1/012030
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