NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = S.Ouichaoui Found 18 matches. 2023RA04 Nucl.Phys. A1032, 122622 (2023) Y.Rahma, S.Ouichaoui, J.Kiener, E.A.Lawrie, J.J.Lawrie, V.Tatischeff, A.Belhout, D.Moussa, W.Yahia-Cherif, H.Benhabiles-Mezhoud, T.D.Bucher, T.R.S.Dinoko, A.Chafa, J.L.Conradie, S.Damache, M.Debabi, I.Deloncle, J.L.Easton, M.Fouka, C.Hamadache, F.Hammache, P.Jones, B.V.Kheswa, N.A.Khumalo, T.Lamula, S.N.T.Majola, J.Ndayishimye, D.Negi, S.P.Noncolela, S.Ouziane, P.Papka, S.Peterson, M.Kumar Raju, V.Ramanathan, B.M.Rebeiro, N.de Sereville, J.F.Sharpey-Schafer, O.Shirinda, M.Wiedeking, S.Wyngaardt γ-ray emission in proton-induced nuclear reactions on natC and Mylar targets over the incident energy range, Ep = 30 - 200 MeV. Astrophysical implications NUCLEAR REACTIONS 12C, 16O, 24Mg, 28Si, 56Fe(p, X), E=30-200 MeV; measured reaction products; deduced γ-ray production σ. The K = 200 separated sector cyclotron of iThemba LABS using a high-energy resolution, high-efficiency detection array composed of 8 Compton-suppressed clover detectors comprising 32 HP-Ge crystals for recording the γ-ray energy spectra.
doi: 10.1016/j.nuclphysa.2023.122622
2020YA21 Phys.Rev. C 102, 025802 (2020) W.Yahia-Cherif, S.Ouichaoui, J.Kiener, E.A.Lawrie, J.J.Lawrie, V.Tatischeff, A.Belhout, D.Moussa, P.Papka, H.Benhabiles-Mezhoud, T.D.Bucher, A.Chafa, J.L.Conradie, S.Damache, M.Debabi, I.Deloncle, J.L.Easton, C.Hamadache, F.Hammache, P.Jones, B.V.Kheswa, N.A.Khumalo, T.Lamula, S.N.T.Majola, J.Ndayishimye, D.Negi, S.P.Noncolela, N.de Sereville, J.F.Sharpey-Schafer, O.Shirinda, M.Wiedeking, S.Wyngaardt Measurement and analysis of nuclear γ-ray production cross sections in proton interactions with Mg, Si, and Fe nuclei abundant in astrophysical sites over the incident energy range E=30-66 MeV NUCLEAR REACTIONS 24Mg(p, n), (p, 3He), (p, p'), (p, d), (p, 2p), (p, α), (p, p3He), 25Mg(p, 2n), (p, p'), (p, d), (p, α), (p, t), (p, 2p), (p, 3He), (p, nα), (p, pα), 26Mg(p, 3n), (p, p'), (p, d), (p, nα), (p, t), (p, nt), (p, α), (p, nα), (p, 3He), (p, 2nα), (p, dα), 28Si(p, p'), (p, d), (p, 2p), (p, 3He), (p, p3He), (p, 2pα), (p, pα), (p, dα), (p, 2α), (p, pα3He), 29Si(p, p'), (p, d), (p, t), (p, pd), (p, α), (p, pα), (p, α3He), (p, dα), (p, tα), (p, n2α), (p, p2α), 30Si(p, d), (p, t), (p, nt), (p, α), (p, nα), (p, npα), (p, 2α), (p, tα), (p, 2α), (p, ntα), (p, 2n2α), (p, d2α), 56Fe(p, p'), (p, t), (p, d), (p, 3He), (p, α), (p, pα), E=30, 42, 54, 66 MeV; measured Eγ, Iγ, γ(θ), integrated γ-ray cross sections using natural and enriched targets and AFRODITE array with eight Compton-suppressed HPGe clover detectors at the Separated Sector Cyclotron (SSC) of iThemba LABS; deduced angular distribution coefficients and multipolarities of γ-ray transitions, branching ratios and assignments to levels in product nuclei. Comparison to theoretical predictions using the code TALYS, with modified optical model potential (OMP) parameters deformation parameters, and level density parameters. 24Mg(p, p'), E=49.5 MeV; 28Si(p, p'), E=65 MeV; 56Fe(p, p'), E=30, 65 MeV; analyzed σ(θ) data in literature using OPTMAN code; deduced optical potential model parameters, deformation parameters β2, β4 and γ. Comparison with γ-ray cross section data in literature. Discussed astrophysical implications of results of present experiment through TALYS calculation of γ-ray line emission spectra over the photon energy range of 0.1-10 MeV, expected to be generated in interactions of the low-energy cosmic rays (LECRs) in the inner Galaxy.
doi: 10.1103/PhysRevC.102.025802
2017BE31 Phys.Rev. C 96, 054601 (2017) A.Belhout, S.Ouichaoui, H.Beaumevieille, A.Bouchemha, G.Bogaert, S.Fortier, J.Kiener, A.Lefebvre-Schuhl, J.M.Maison, L.Rosier, J.Rotbard, V.Tatischeff, J.P.Thibaud, J.Vernotte New determination of proton spectroscopic factors and reduced widths for 8Be states in the 16.5-18.0 MeV excitation energy region via the study of the 7Li(3He, d)8Be transfer reaction at Elab=20 MeV: Implication for the 7Li(p, α)4He hydrogen burning reaction NUCLEAR REACTIONS 7Li(3He, d)8Be, E=20 MeV; measured E(d), I(d), σ, σ(θ) using split-pole magnetic spectrometer and a ΔE-E position-sensitive drift chamber at the Orsay 14.8-MV tandem accelerator facility. Nonlocal, finite-range (FR)-distorted-wave Born approximation (DWBA) analysis of cross section data. 8Be; deduced levels, J, π, isospin, absolute and partial spectroscopic factors. Comparison with previous experimental results, and with shell-model calculations. Relevance to 7Li(p, α)4He hydrogen burning in astrophysical applications.
doi: 10.1103/PhysRevC.96.054601
2011BE04 Phys.Rev. C 83, 024603 (2011) H.Benhabiles-Mezhoud, J.Kiener, J.-P.Thibaud, V.Tatischeff, I.Deloncle, A.Coc, J.Duprat, C.Hamadache, A.Lefebvre-Schuhl, J.-C.Dalouzy, F.de Grancey, F.de Oliveira, F.Dayras, N.de Sereville, M.-G.Pellegriti, L.Lamia, S.Ouichaoui Measurements of nuclear γ-ray line emission in interactions of protons and α particles with N, O, Ne, and Si NUCLEAR REACTIONS N(p, X)14N, E=6.55-25.0 MeV; N(α, X)14N, E=7.0-39.2 MeV; Ne(p, X)16O/20Ne/22Ne/23Na, E=7.5-26.2 MeV; Ne(α, X)16O/20Ne/22Ne/23Na, E=10-39.2 MeV; O(p, X)16O, E=15.0-26.2 MeV; O(α, X)16O, E=15.0-39.2 MeV; Si(p, X)28Si/29Si/30Si, E=10.0-20.0 MeV; measured Eγ, Iγ, σ(E); deduced line shapes. 14N, 16O, 20,22Ne, 23Na, 28,29,30Si; deduced levels, J, π, γ transitions, deformation parameters. Comparison with results from TALYS code. Relevance to modeling of γ rays in astrophysical applications.
doi: 10.1103/PhysRevC.83.024603
2007BE45 Nucl.Phys. A793, 178 (2007) A.Belhout, S.Ouichaoui, H.Beaumevieille, A.Boughrara, S.Fortier, J.Kiener, J.M.Maison, S.K.Mehdi, L.Rosier, J.P.Thibaud, A.Trabelsi, J.Vernotte Measurement and DWBA analysis of the 12C(6Li, d)16O α-transfer reaction cross sections at 48.2 MeV. R-matrix analysis of 12C(α, γ)16O direct capture reaction data NUCLEAR REACTIONS 12C(6Li, d), E=48.2 MeV; measured Ed, σ(θ) to first eleven states of 16O; deduced level energies, widths, spectroscopic factors. DWBA analysis. 12C(α, γ), E(cm)≈ 0-3 MeV; analyzed σ; deduced resonance parameters. R-Matrix calculations. Astrophysical implications discussed.
doi: 10.1016/j.nuclphysa.2007.06.008
2007CH25 Phys.Rev. C 75, 035810 (2007) A.Chafa, V.Tatischeff, P.Aguer, S.Barhoumi, A.Coc, F.Garrido, M.Hernanz, J.Jose, J.Kiener, A.Lefebvre-Schuhl, S.Ouichaoui, N.de Sereville, J.-P.Thibaud Experimental determination of the 17O(p, α)14N and 17O(p, γ)18F reaction rates NUCLEAR REACTIONS 14N(α, γ), E=1620-1775 keV; measured Eγ, Iγ; deduced resonance parameters. 17O(p, α), E=194-204 keV; measured Eα, σ(E, θ); deduced resonance energy, strength. Astrophysical implications discussed.
doi: 10.1103/PhysRevC.75.035810
2007DE47 Nucl.Phys. A791, 251 (2007) N.de Sereville, A.Coc, C.Angulo, M.Assuncao, D.Beaumel, E.Berthoumieux, B.Bouzid, S.Cherubini, M.Couder, P.Demaret, F.de Oliveira Santos, P.Figuera, S.Fortier, M.Gaelens, F.Hammache, J.Kiener, A.Lefebvre-Schuhl, D.Labar, P.Leleux, M.Loiselet, A.Ninane, S.Ouichaoui, G.Ryckewaert, N.Smirnova, V.Tatischeff Indirect study of 19Ne states near the 18F + p threshold NUCLEAR REACTIONS 2H(18F, p), (18F, pα), E(cm)=1.4 MeV; measured particle energies and yields, cross sections and angular distributions. 19F, Ne deduced level energies and decay widths. Discussed astrophysical implications.
doi: 10.1016/j.nuclphysa.2007.02.003
2005CH44 Phys.Rev.Lett. 95, 031101 (2005); Erratum Phys.Rev.Lett. 96, 019902 (2006) A.Chafa, V.Tatischeff, P.Aguer, S.Barhoumi, A.Coc, F.Garrido, M.Hernanz, J.Jose, J.Kiener, A.Lefebvre-Schuhl, S.Ouichaoui, N.de Sereville, J.-P.Thibaud Hydrogen Burning of 17O in Classical Novae NUCLEAR REACTIONS 14N(α, γ), E=1775 keV; measured Eγ, Iγ. 17,18O(p, α), E ≈ 190-205 keV; measured Eα, σ, σ(θ); deduced resonance parameters. Astrophysical implications discussed.
doi: 10.1103/PhysRevLett.95.031101
2004DA25 Nucl.Instrum.Methods Phys.Res. B225, 449 (2004) S.Damache, S.Ouichaoui, A.Belhout, A.Medouni, I.Toumert Stopping of 236 keV - 3.019 MeV protons in mylar and polypropylene films NUCLEAR REACTIONS H, C, O(p, p'), E ≈ 0.2-3 MeV; measured backscattered proton spectra; deduced stopping powers for polypropylene and mylar.
doi: 10.1016/j.nimb.2004.06.007
2003DE15 Phys.Rev. C 67, 052801 (2003) N.de Sereville, A.Coc, C.Angulo, M.Assuncao, D.Beaumel, B.Bouzid, S.Cherubini, M.Couder, P.Demaret, F.de Oliveira Santos, P.Figuera, S.Fortier, M.Gaelens, F.Hammache, J.Kiener, A.Lefebvre, D.Labar, P.Leleux, M.Loiselet, A.Ninane, S.Ouichaoui, G.Ryckewaert, N.Smirnova, V.Tatischeff, J.-P.Thibaud 2H(18F, pα)15N reaction applied to nova γ-ray emission NUCLEAR REACTIONS 2H(18F, pα), E=14 MeV; measured particle spectra, σ(θ), p(recoil)-, α(recoil)-coin; deduced excitation energy spectra. DWBA analysis, implications for astrophysical reaction rate discussed.
doi: 10.1103/PhysRevC.67.052801
2003DE26 Nucl.Phys. A718, 259c (2003) N.de Sereville, A.Coc, C.Angulo, M.Assuncao, D.Beaumel, B.Bouzid, S.Cherubini, M.Couder, P.Demaret, F.de Oliveira Santos, P.Figuera, S.Fortier, M.Gaelens, F.Hammache, J.Kiener, D.Labar, A.Lefebvre, P.Leleux, M.Loiselet, A.Ninane, S.Ouichaoui, G.Ryckewaert, N.Smirnova, V.Tatischeff, J.P.Thibaud Study of the 18F(p, α)15O reaction for application to nova γ-ray emission NUCLEAR REACTIONS 2H(18F, p), E=14 MeV; measured excitation energy spectrum, σ(θ); deduced spectroscopic factor. Astrophysical implications discussed.
doi: 10.1016/S0375-9474(03)00725-5
2002NE23 C.R.Physique 3, 733 (2002) F.Nebia, H.Beaumevieille, S.Ouichaoui Violation apparente de la symetrie de charge dans les reactions de fusion D(d, p)T et D(d, n)3He aux energies stellaires NUCLEAR REACTIONS 2H(d, p), (d, n), E(cm) ≈ 0-100 keV; compiled, analyzed astrophysical S-factors, partial wave decomposition, anisotropies.
doi: 10.1016/S1631-0705(02)01362-2
2001HA26 Phys.Rev.Lett. 86, 3985 (2001) F.Hammache, G.Bogaert, P.Aguer, C.Angulo, S.Barhoumi, L.Brillard, J.F.Chemin, G.Claverie, A.Coc, M.Hussonnois, M.Jacotin, J.Kiener, A.Lefebvre, C.Le Naour, S.Ouichaoui, J.N.Scheurer, V.Tatischeff, J.P.Thibaud, E.Virassamynaiken Low-Energy Measurement of the 7Be(p, γ)8B Cross Section NUCLEAR REACTIONS 7Be(p, γ), E(cm)=111.7, 134.7, 185.8 keV; measured α spectra, σ; deduced astrophysical S-factor. Comparison with previous results.
doi: 10.1103/PhysRevLett.86.3985
2001HA36 Nucl.Phys. A688, 273c (2001) F.Hammache, G.Bogaert, P.Aguer, C.Angulo, S.Barhoumi, L.Brillard, J.F.Chemin, G.Claverie, A.Coc, M.Hussonnois, M.Jacotin, J.Kiener, A.Lefebvre, C.Le Naour, S.Ouichaoui, J.N.Scheurer, V.Tatischeff, J.P.Thibaud, E.Virassamynaiken The Solar Neutrino Problem: Low energy measurements of the 7Be(p, γ)8B Cross Section NUCLEAR REACTIONS 7Be(p, γ), E=111.7-185.8 keV; measured Eα, αβ-coin, σ, S-factor. Comparison with earlier data and with calculations.
doi: 10.1016/S0375-9474(01)00713-8
1999BO55 Europhys.Lett. 48, 264 (1999) A.Boughrara, H.Beaumevieille, S.Ouichaoui Branching Ratios and Screening Effect in the d + d Nuclear Interaction NUCLEAR REACTIONS 2H(d, p), (d, n), E(cm)=0-100 keV; analyzed σ; deduced branching ratios, screening effects. Partial wave analysis.
doi: 10.1209/epl/i1999-00475-5
1988OU01 Acta Phys.Acad.Sci.Hung. 64, 209 (1988) S.Ouichaoui, S.Juhasz, M.Varnagy, J.Csikai Angular Distribution of Fission Fragments from 235U, 238U and 237Np Near the (n, 2nf) Threshold NUCLEAR REACTIONS 235,238U, 237Np(n, F), E ≈ 14 MeV; measured fission fragment σ(θ); deduced anisotropy parameter. Polycarbonate nuclear track detector. Data from this article have been entered in the EXFOR database. For more information, access X4 dataset30819. 1986OU01 Nuovo Cim. 94A, 133 (1986) S.Ouichaoui, H.Beaumevielle, N.Bendjaballah, A.Genoux-Lubain T=1 States in 20Ne as Compound Resonances Induced by the p + 19F Reactions NUCLEAR REACTIONS 19F(p, p), (p, p'), (p, α), E=2-3.4 MeV; measured σ(E, θ), σ(θ); deduced resonance parameters. 20Ne deduced levels, J, π, IAR spectroscopic factors, T. Si detectors. R-matrix analyses.
doi: 10.1007/BF02894868
1985OU01 Nuovo Cim. 86A, 170 (1985) S.Ouichaoui, H.Beaumevieille, N.Bendjaballah, A.C.Chami, A.Dauchy, B.Chambon, D.Drain, C.Pastor States in 20Ne from 19F(p, p) and 19F(p, α) Reactions at E(p) = (1.5 - 2.1) MeV NUCLEAR REACTIONS 19F(p, p), (p, α), E=1.5-2.5 MeV; measured absolute σ(θ) vs Ep. 20Ne deduced resonances, J, π, T, Γ, Γp, p-, α-reduced widths. R-matrix theory.
doi: 10.1007/BF02833314
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