NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = J.Easton Found 16 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
2020IN01 Eur.Phys.J. A 56, 68 (2020) V.W.Ingeberg, S.Siem, M.Wiedeking, K.Sieja, D.L.Bleuel, C.P.Brits, T.D.Bucher, T.S.Dinoko, J.L.Easton, A.Gorgen, M.Guttormsen, P.Jones, B.V.Kheswa, N.A.Khumalo, A.C.Larsen, E.A.Lawrie, J.J.Lawrie, S.N.T.Majola, K.L.Malatji, L.Makhathini, B.Maqabuka, D.Negi, S.P.Noncolela, P.Papka, E.Sahin, R.Schwengner, G.M.Tveten, F.Zeiser, B.R.Zikhali First application of the Oslo method in inverse kinematics
doi: 10.1140/epja/s10050-020-00070-7
2020VE03 Phys.Lett. B 806, 135488 (2020) M.Venhart, M.Balogh, A.Herzan, J.L.Wood, F.A.Ali, D.T.Joss, A.N.Andreyev, K.Auranen, R.J.Carroll, M.C.Drummond, J.L.Easton, P.T.Greenlees, T.Grahn, A.Gredley, J.Henderson, U.Jakobsson, R.Julin, S.Juutinen, J.Konki, E.A.Lawrie, M.Leino, V.Matousek, C.G.McPeake, D.O'Donnell, R.D.Page, J.Pakarinen, P.Papadakis, J.Partanen, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, B.Saygi, M.Sedlak, C.Scholey, J.Sorri, S.Stolze, A.Thornthwaite, R.Urban, J.Uusitalo, M.Veselsky, F.P.Wearing Population of a low-spin positive-parity band from high-spin intruder states in 177Au: The two-state mixing effect NUCLEAR REACTIONS 92Mo(88Sr, X)177Au, E=399 MeV; 100Ru(82Kr, X)179Au, E=352 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, proton-intruder configuration, partial level scheme, J, π.
doi: 10.1016/j.physletb.2020.135488
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
2019MA70 Phys.Rev. C 100, 044324 (2019) S.N.T.Majola, Z.Shi, B.Y.Song, Z.P.Li, S.Q.Zhang, R.A.Bark, J.F.Sharpey-Schafer, D.G.Aschman, S.P.Bvumbi, T.D.Bucher, D.M.Cullen, T.S.Dinoko, J.E.Easton, N.Erasmus, P.T.Greenlees, D.J.Hartley, J.Hirvonen, A.Korichi, U.Jakobsson, P.Jones, S.Jongile, R.Julin, S.Juutinen, S.Ketelhut, B.V.Kheswa, N.A.Khumalo, E.A.Lawrie, J.J.Lawrie, R.Lindsay, T.E.Madiba, L.Makhathini, S.M.Maliage, B.Maqabuka, K.L.Malatji, P.L.Masiteng, P.I.Mashita, L.Mdletshe, A.Minkova, L.Msebi, S.M.Mullins, J.Ndayishimye, D.Negi, A.Netshiya, R.Newman, S.S.Ntshangase, R.Ntshodu, B.M.Nyako, P.Papka, P.Peura, P.Rahkila, L.L.Riedinger, M.A.Riley, D.G.Roux, P.Ruotsalainen, J.J.Saren, C.Scholey, O.Shirinda, M.A.Sithole, J.Sorri, M.Stankiewicz, S.Stolze, J.Timar, J.Uusitalo, P.A.Vymers, M.Wiedeking, G.L.Zimba β and γ bands in N=88, 90, and 92 isotones investigated with a five-dimensional collective Hamiltonian based on covariant density functional theory: Vibrations, shape coexistence, and superdeformation NUCLEAR REACTIONS 136Xe(18O, 4n)150Sm, E=75 MeV; 148Nd(α, 2n)150Sm, E=25 MeV; 152Sm(α, 4n)152Gd, E=45 MeV; 152Sm(α, 2n)154Gd, E=25 MeV; 155Gd(3He, 4n)154Dy, E=37.5 MeV; 147Sm(12C, 3n)156Er, E=65 MeV; 155Gd(α, 3n)156Dy, E=25 MeV; 144Sm(18O, 4n)158Yb, E=78 MeV; 150Sm(12C, 4n)158Er, E=65 MeV; 156Gd(α, 2n)158Dy, E=27 MeV; 147Sm(16O, 3n)160Yb, E=73 MeV; 152Sm(12C, 4n)160Er, E=64 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization) using the AFRODITE array at the cyclotron facility of the iThemba Labs for 11 reactions, and JUROGAM II array at Jyvaskyla for 148Nd(α, 2n)150Sm and 155Gd(α, 3n)156Dy reactions. 150Sm, 152,154Gd, 154,156,158Dy, 156,160Er, 158,160Yb; deduced levels, J, π, multipolarities, β, γ and 0+ bands, B(E2) ratios. 150,152,154Sm, 152,154,156Gd, 154,156,158Dy, 156,158,160Er, 158,160,162Yb; calculated potential energy surfaces (PES) and probability density distribution contours in (β, γ) plane; deduced staggering parameters, in-band B(E2) values, absolute transition strengths of E0 transitions, X(E0/E2) values from present and previous experimental data. Comparison with 5DCH-CDFT calculations with PC-PK1 density functional.
doi: 10.1103/PhysRevC.100.044324
2019ND01 Phys.Rev. C 100, 014313 (2019) J.Ndayishimye, E.A.Lawrie, O.Shirinda, J.L.Easton, J.J.Lawrie, S.M.Wyngaardt, R.A.Bark, T.D.Bucher, S.P.Bvumbi, T.R.S.Dinoko, P.Jones, N.Y.Kheswa, S.N.T.Majola, P.L.Masiteng, D.Negi, J.N.Orce, J.F.Sharpey-Schafer, M.Wiedeking Competition of rotation around the intermediate and long axes in 193Tl NUCLEAR REACTIONS 160Gd(37Cl, 4n), E=167 MeV; 181Ta(18O, 6n), E=105 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO), γγ(lin pol) using AFRODITE array at iThemba LABS. 193Tl; deduced high-spin levels, J, π, alignments, rotational bands, configurations; calculated potential energy surfaces, and positive-parity quasineutron Routhians using cranked shell model calculations. Comparison with previous experimental data, and with band structures in 194Tl.
doi: 10.1103/PhysRevC.100.014313
2019SH46 Acta Phys.Pol. B50, 597 (2019) O.Shirinda, E.A.Lawrie, T.D.Bucher, S.H.Mthembu, T.R.S.Dinoko, J.L.Easton, W.X.Mtshali, S.P.Noncolela, D.Duprez, J.J.Lawrie Angular Correlation Measurement with the iThemba LABS Segmented Clover Detector NUCLEAR REACTIONS Cd(n, γ), E=0-66 MeV; measured Eγ, Iγ, γ(θ), γγ-coin;111Cd; deduced levels, J, π, δ, transition strengths.
doi: 10.5506/aphyspolb.50.597
2018ZI02 Eur.Phys.J. A 54, 59 (2018) G.L.Zimba, S.P.Bvumbi, L.P.Masiteng, P.Jones, J.F.Sharpey-Schafer, S.N.T.Majola, T.S.Dinoko, O.Shirinda, J.J.Lawrie, J.E.Easton, N.A.Khumalo, L.Msebi, P.I.Mashita, P.Papka, D.G.Roux, D.Negi Yrare low-spin positive-parity states in N = 88 66154Dy NUCLEAR REACTIONS 155Gd(3He, 4n), E=37.5 MeV; measured Eγ, Iγ(θ_), γγ-coin, DCO ratios, polarization asymmetries using AFRODITE spectrometer array (9 HPGe clover detectors in BGO shields). 154Dy; deduced levels, J, π, γ-transitions, γ band, Kπ=2+ band, staggering parameter, γ-transitions multipolarity, kinematical moment of inertia vs rotational frequency for yrast band and for non-yrast positive-parity bands, rotational bands states energy relative to liquid-drop reference of the low spin bands. 150Sm, 152Gd, 154Dy, 156Er, 158Yb; deduced staggering parameters vs spin.
doi: 10.1140/epja/i2018-12496-3
2017ND01 Acta Phys.Pol. B48, 343 (2017) J.Ndayishimye, E.A.Lawrie, O.Shirinda, J.L.Easton, S.M.Wyngaardt, R.A.Bark, S.P.Bvumbi, T.R.S.Dinoko, P.Jones, N.Y.Kheswa, J.J.Lawrie, S.N.T.Majola, P.L.Masiteng, D.Negi, J.N.Orce, P.Papka, J.F.Sharpey-Schafer, M.Stankiewicz, M.Wiedeking Chiral Bands in 193Tl NUCLEAR REACTIONS 160Gd(37Cl, 4n), E=167 MeV;181Ta(18O, 6n), E=105 MeV; measured Eγ, Iγ, γγ-coin using 9 clovers at different angles. 193Tl; deduced level, J, π, high-spin, γ transitions, B(M1), B(E2), formed one or two chiral systems.
doi: 10.5506/APhysPolB.48.343
2017NO02 Acta Phys.Pol. B48, 347 (2017) S.P.Noncolela, T.D.Bucher, E.A.Lawrie, T.R.S.Dinoko, J.L.Easton, N.Erasmus, J.J.Lawrie, S.H.Mthembu, W.X.Mtshali, O.Shirinda, J.N.Orce Proportional Crosstalk for the iThemba LABS Clover Detector
doi: 10.5506/APhysPolB.48.347
2017VE03 Phys.Rev. C 95, 061302 (2017) M.Venhart, F.A.Ali, W.Ryssens, J.L.Wood, D.T.Joss, A.N.Andreyev, K.Auranen, B.Bally, M.Balogh, M.Bender, R.J.Carroll, J.L.Easton, P.T.Greenlees, T.Grahn, P.-H.Heenen, A.Herzan, U.Jakobsson, R.Julin, S.Juutinen, D.Klc, J.Konki, E.Lawrie, M.Leino, V.Matousek, C.G.McPeake, D.O'Donnell, R.D.Page, J.Pakarinen, J.Partanen, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, B.Saygi, M.Sedlak, C.Scholey, J.Sorri, S.Stolze, A.Thornthwaite, J.Uusitalo, M.Veselsky De-excitation of the strongly coupled band in 177Au and implications for core intruder configurations in the light Hg isotopes NUCLEAR REACTIONS 92Mo(88Sr, 2np), E=399 MeV; measured reaction products, Eγ, Iγ, (ion implants)γ-coin, γγ-coin, γγ(θ)(DCO), α-decay tagging method using Jurogam-II array, GREAT spectrometer, and RITU gas-filled separator at the K=130 MeV cyclotron facility of the University of Jyvaskyla. 177Au; deduced high-spin levels, conversion coefficients, multipolarity, J, π, bands, configuration. Comparisons with cranked Hartree-Fock-Bogoliubov (HFB) calculations based on Skyrme energy functionals, and with the structures of 187Au and 178Hg nuclei.
doi: 10.1103/PhysRevC.95.061302
2016LI12 Phys.Rev.Lett. 116, 112501 (2016) C.Liu, S.Y.Wang, R.A.Bark, S.Q.Zhang, J.Meng, B.Qi, P.Jones, S.M.Wyngaardt, J.Zhao, C.Xu, S.-G.Zhou, S.Wang, D.P.Sun, L.Liu, Z.Q.Li, N.B.Zhang, H.Jia, X.Q.Li, H.Hua, Q.B.Chen, Z.G.Xiao, H.J.Li, L.H.Zhu, T.D.Bucher, T.Dinoko, J.Easton, K.Juhasz, A.Kamblawe, E.Khaleel, N.Khumalo, E.A.Lawrie, J.J.Lawrie, S.N.T.Majola, S.M.Mullins, S.Murray, J.Ndayishimye, D.Negi, S.P.Noncolela, S.S.Ntshangase, B.M.Nyako, J.N.Orce, P.Papka, J.F.Sharpey-Schafer, O.Shirinda, P.Sithole, M.A.Stankiewicz, M.Wiedeking Evidence for Octupole Correlations in Multiple Chiral Doublet Bands NUCLEAR REACTIONS 70Zn(12C, 3np), E=60, 65 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced energy levels, J, π, medium- amd high-spin states, yrast positive- and negative-parity bands. Comparison with microscopic multidimensionally-constrained covariant density functional theory and triaxial particle rotor model calculations.
doi: 10.1103/PhysRevLett.116.112501
2016NE08 Phys.Rev. C 94, 024332 (2016) D.Negi, M.Wiedeking, E.G.Lanza, E.Litvinova, A.Vitturi, R.A.Bark, L.A.Bernstein, D.L.Bleuel, S.Bvumbi, T.D.Bucher, B.H.Daub, T.S.Dinoko, J.L.Easton, A.Gorgen, M.Guttormsen, P.Jones, B.V.Kheswa, N.A.Khumalo, A.C.Larsen, E.A.Lawrie, J.J.Lawrie, S.N.T.Majola, L.P.Masiteng, M.R.Nchodu, J.Ndayishimye, R.T.Newman, S.P.Noncolela, J.N.Orce, P.Papka, L.Pellegri, T.Renstrom, D.G.Roux, R.Schwengner, O.Shirinda, S.Siem Nature of low-lying electric dipole resonance excitations in 74Ge NUCLEAR REACTIONS 74Ge(α, α'), E=48 MeV; measured Eγ, Iγ, Eα, αγ-coin, γ(θ), σ(θ) for scattered α particles, relative cross sections of E1 transitions using AFRODITE array for γ detection and silicon detectors for α particles at iThemba Labs cyclotron facility. 74Ge; deduced levels, J, π, B(E1), suppression in relative cross section for the excitation of pygmy-dipole resonances (PDR) as compared to those in (γ, γ') data for excitations above 6 MeV. Comparison of B(E1) with relativistic quasiparticle time blocking approximation (RQTBA) calculations.
doi: 10.1103/PhysRevC.94.024332
2016OR06 Eur.Phys.J. A 52, 166 (2016) J.N.Orce, M.Kumar Raju, N.A.Khumalo, T.S.Dinoko, P.Jones, R.A.Bark, E.A.Lawrie, S.N.T.Majola, L.M.Robledo, B.Rubio, M.Wiedeking, J.Easton, E.A.Khaleel, B.V.Kheswa, N.Kheswa, M.S.Herbert, J.J.Lawrie, P.L.Masiteng, M.R.Nchodu, J.Ndayishimye, D.Negi, S.P.Noncolela, S.S.Ntshangase, P.Papka, D.G.Roux, O.Shirinda, P.S.Sithole, S.W.Yates Search for two-phonon octupole excitations in 146Gd NUCLEAR REACTIONS 144Sm(α, 2n), E=26.1-26.8 MeV; measured Eγ, Iγ(θ), γγ-coin. 148Gd deduced γ-ray energy spectra gated by specified γ transitions, relative γ intensities in depopulating the 6+ (3484.5 keV) state, linear polarization, B(E3) for one-photon and two-photon excitations; calculated B(E3) using GCM with Gogny D1S force.
doi: 10.1140/epja/i2016-16166-2
2016ZI04 Phys.Rev. C 94, 054303 (2016) G.L.Zimba, J.F.Sharpey-Schafer, P.Jones, S.P.Bvumbi, L.P.Masiteng, S.N.T.Majola, T.S.Dinoko, E.A.Lawrie, J.J.Lawrie, D.Negi, P.Papka, D.Roux, O.Shirinda, J.E.Easton, N.A.Khumalo Octupole correlations in N = 88 154Dy: Octupole vibration versus stable deformation NUCLEAR REACTIONS 155Gd(3He, 4n), E=37.5 MeV; measured Eγ, Iγ, γγ-coin using AFRODITE array at the Cyclotron facility of the iThemba Laboratory. 154Dy; deduced levels, J, π, bands, B(E1)/B(E2) ratios, E1 transitions, level energy differences between the positive- and negative-parity bands, octupole deformation. Comparison with level-energy differences and B(E1)/B(E2) ratios in 150Sm, 152Gd, 224Ra.
doi: 10.1103/PhysRevC.94.054303
2015XU09 Phys.Rev. C 91, 061303 (2015) C.Xu, X.Q.Li, J.Meng, S.Q.Zhang, H.Hua, S.Y.Wang, B.Qi, C.Liu, Z.G.Xiao, H.J.Li, L.H.Zhu, Z.Shi, Z.H.Li, Y.L.Ye, D.X.Jiang, J.J.Sun, Z.H.Zhang, Y.Shi, P.W.Zhao, Q.B.Chen, W.Y.Liang, R.Han, C.Y.Niu, C.G.Li, C.G.Wang, Z.H.Li, S.M.Wyngaardt, R.A.Bark, P.Papka, T.D.Bucher, A.Kamblawe, E.Khaleel, N.Khumalo, E.A.Lawrie, J.J.Lawrie, P.Jones, S.M.Mullins, S.Murray, M.Wiedeking, J.F.Sharpey-Schafer, S.N.T.Majola, J.Ndayishimye, D.Negi, S.P.Noncolela, S.S.Ntshangase, O.Shirinda, P.Sithole, M.A.Stankiewicz, J.N.Orce, T.Dinoko, J.Easton, B.M.Nyako, K.Juhasz Spectroscopy of 76Se: Prolate-to-oblate shape transition NUCLEAR REACTIONS 70Zn(12C, 2nα), E=60, 65 MeV; measured Eγ, Iγ, γγ-, (particle)γγ-coin using AFRODITE array for γ rays and DIAMANT array for charged particles at iThemba LABS. 76Se; deduced high-spin levels, J, π, bands, configuration, kinematic and dynamic moments of inertia, band crossing frequency, shape transition. Comparison with cranked shell-model calculations. systematics of band crossings in 70,72,74,76,78,80Se, 72,74,76,78,80,82Kr.
doi: 10.1103/PhysRevC.91.061303
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