NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = P.Papka Found 92 matches. 2024BA02 Phys.Rev. C 109, 014325 (2024) A.Bahini, P.von Neumann-Cosel, J.Carter, I.T.Usman, N.N.Arsenyev, A.P.Severyukhin, E.Litvinova, R.W.Fearick, R.Neveling, P.Adsley, N.Botha, J.W.Brummer, L.M.Donaldson, S.Jongile, T.C.Khumalo, M.B.Latif, K.C.W.Li, P.Z.Mabika, P.T.Molema, C.S.Moodley, S.D.Olorunfunmi, P.Papka, L.Pellegri, B.Rebeiro, E.Sideras-Haddad, F.D.Smit, S.Triambak, M.Wiedeking, J.J.van Zyl Fine structure of the isoscalar giant monopole resonance in 58Ni, 90Zr, 120Sn, and 208Pb
doi: 10.1103/PhysRevC.109.014325
2024LI06 Phys.Rev. C 109, 015806 (2024) K.C.W.Li, R.Neveling, P.Adsley, H.Fujita, P.Papka, F.D.Smit, J.W.Brummer, L.M.Donaldson, M.N.Harakeh, Tz.Kokalova, E.Nikolskii, W.Paulsen, L.Pellegri, S.Siem, M.Wiedeking Understanding the total width of the 3-1 state in 12C
doi: 10.1103/PhysRevC.109.015806
2023BA03 Phys.Rev. C 107, 034312 (2023) A.Bahini, R.Neveling, P.von Neumann-Cosel, J.Carter, I.T.Usman, P.Adsley, N.Botha, J.W.Brummer, L.M.Donaldson, S.Jongile, T.C.Khumalo, M.B.Latif, K.C.W.Li, P.Z.Mabika, P.T.Molema, C.S.Moodley, S.D.Olorunfunmi, P.Papka, L.Pellegri, B.Rebeiro, E.Sideras-Haddad, F.D.Smit, S.Triambak, M.Wiedeking, J.J.van Zyl Isoscalar giant monopole strength in 58Ni, 90Zr, 120Sn and 208Pb NUCLEAR REACTIONS 58Ni, 90Zr, 120Sn, 208Pb(α, α'), E=196 MeV; measured Eα, Iα, angular distributions; deduced σ(θ, E) at zero and four degrees, isoscalar monopole strength functions. 58Ni, 90Zr, 120Sn, 208Pb; deduced isoscalar giant monopole resonance parameters - centroid energies, widths, EWSR. Difference-of-spectra (DoS) analysis technique. Comparison to other experimental data. K600 magnetic spectrometer at iThemba LABS.
doi: 10.1103/PhysRevC.107.034312
2023BR04 Phys.Rev. C 107, 055802 (2023) J.W.Brummer, P.Adsley, T.Rauscher, F.D.Smit, C.P.Brits, M.Kohne, N.A.Khumalo, K.C.W.Li, D.J.Marin-Lambarri, N.J.Mukwevho, F.Nemulodi, R.Neveling, P.Papka, L.Pellegri, V.Pesudo, B.M.Rebeiro, G.F.Steyn, W.Yahia-Cherif Proton decays from α-unbound states in 22Mg and the 18Ne(α, p0)21Na cross section NUCLEAR REACTIONS 24Mg(p, t)22Mg, E=100 MeV; measured reaction products, triton spectra, Ep, Ip. 22Mg; deduced levels, branching ratios for proton decay of the excited states. 18Ne(α, p)21Na, E(cm)=1-3 MeV; calculated exclusive σ(E) to the ground state with SMARAGD code using deduced p0 width. Comparison to TALYS, NON-SMOKER and SMARAGD calculations and other experimental results. K600 magnetic spectrometer and CAKE (Coincidence Array for K600 Experiments) array 5 double-sided silicon strip detectors at Separated-Sector Cyclotron (iThemba LABS).
doi: 10.1103/PhysRevC.107.055802
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
2022AD10 Phys.Rev.Lett. 129, 102701 (2022) P.Adsley, M.Heine, D.G.Jenkins, S.Courtin, R.Neveling, J.W.Brummer, L.M.Donaldson, N.Y.Kheswa, K.C.W.Li, D.J.Marin-Lambarri, P.Z.Mabika, P.Papka, L.Pellegri, V.Pesudo, B.Rebeiro, F.D.Smit, W.Yahia-Cherif Extending the Hoyle-State Paradigm to 12C+12C Fusion NUCLEAR REACTIONS 24Mg(α, α'), E=200 MeV; measured reaction products; deduced excitation-energy spectra, J, π, properties of 0+ states, estimates of 12C+12C fusion reaction rates. The Separated-Sector Cyclotron at iThemba LABS, Cape Town.
doi: 10.1103/PhysRevLett.129.102701
2022BA04 Phys.Rev. C 105, 024311 (2022) A.Bahini, V.O.Nesterenko, I.T.Usman, P.von Neumann-Cosel, R.Neveling, J.Carter, J.Kvasil, A.Repko, P.Adsley, N.Botha, J.W.Brummer, L.M.Donaldson, S.Jongile, T.C.Khumalo, M.B.Latif, K.C.W.Li, P.Z.Mabika, P.T.Molema, C.S.Moodley, S.D.Olorunfunmi, P.Papka, L.Pellegri, B.Rebeiro, E.Sideras-Haddad, F.D.Smit, S.Triambak, J.J.van Zyl Isoscalar giant monopole resonance in 24Mg and 28Si: Effect of coupling between the isoscalar monopole and quadrupole strength NUCLEAR REACTIONS 24Mg, 28Si(α, α'), E=196 MeV; measured Eα, Iα, angular distributions; deduced σ(θ). 24Mg, 28Si; deduced isoscalar monopole (IS0) strength distribution, coupling between IS0 and isoscalar quadrupole (IS2) strength. Multipole decomposition and DWBA analysis. Comparison with QRPA calculations and with previous experimental data. K600 magnetic spectrometer at iThemba LABS.
doi: 10.1103/PhysRevC.105.024311
2022CA19 Phys.Lett. B 833, 137374 (2022) J.Carter, L.M.Donaldson, H.Fujita, Y.Fujita, M.Jingo, C.O.Kureba, M.B.Latif, E.Litvinova, F.Nemulodi, P.von Neumann-Cosel, R.Neveling, P.Papakonstantinou, P.Papka, L.Pellegri, V.Yu.Ponomarev, A.Richter, R.Roth, E.Sideras-Haddad, F.D.Smit, J.A.Swartz, A.Tamii, R.Trippel, I.T.Usman, H.Wibowo Damping of the isovector giant dipole resonance in 40, 48Ca NUCLEAR REACTIONS 40,48Ca(p, p'), E=200 MeV; measured reaction products; deduced σ(θ, E), Coulomb σ, contributions from the IsoScalar Giant Monopole Resonance (ISGMR) and the ISGQR lying under the IsoVector Giant Dipole Resonance (IVGDR). Comparison with calculations in the framework of RPA and beyond-RPA in a relativistic approach based on an effective meson-exchange interaction, with the UCOM effective interaction. The Separated Sector Cyclotron (SSC) at the iThemba Laboratory for Accelerator Based Sciences (iThemba LABS), Cape Town, South Africa.
doi: 10.1016/j.physletb.2022.137374
2022LI08 Phys.Rev. C 105, 024308 (2022) K.C.W.Li, P.Adsley, R.Neveling, P.Papka, F.D.Smit, E.Nikolskii, J.W.Brummer, L.M.Donaldson, M.Freer, M.N.Harakeh, F.Nemulodi, L.Pellegri, V.Pesudo, M.Wiedeking, E.Z.Buthelezi, V.Chudoba, S.V.Fortsch, P.Jones, M.Kamil, J.P.Mira, G.G.O'Neill, E.Sideras-Haddad, B.Singh, S.Siem, G.F.Steyn, J.A.Swartz, I.T.Usman, J.J.van Zyl Multiprobe study of excited states in 12C: Disentangling the sources of monopole strength between the energy of the Hoyle state and ex = 13 MeV NUCLEAR REACTIONS 12C(α, α'), E=118, 160, 196, 200; 14C(p, t), E=67.5, 100 MeV; measured reaction products, Eα, Iα, (particle)α-coin; deduced excitation energy spectra. 12C; deduced levels, J, π, resonances, resonance widths, monopole strength distribution. Discussed the nature of monopole strength excess at around 9 MeV as possible breathing-mode excitation of the Hoyle state. CAKE-array of double-sided silicon strip detectors coupled with K600 magnetic spectrometer at iThemba LABS.
doi: 10.1103/PhysRevC.105.024308
2022LI13 Phys.Lett. B 827, 136928 (2022) K.C.W.Li, F.D.Smit, P.Adsley, R.Neveling, P.Papka, E.Nikolskii, J.W.Brummer, L.M.Donaldson, M.Freer, M.N.Harakeh, F.Nemulodi, L.Pellegri, V.Pesudo, M.Wiedeking, E.Z.Buthelezi, V.Chudoba, S.V.Fortsch, P.Jones, M.Kamil, J.P.Mira, G.G.O'Neill, E.Sideras-Haddad, B.Singh, S.Siem, G.F.Steyn, J.A.Swartz, I.T.Usman, J.J.van Zyl Investigating the predicted breathing-mode excitation of the Hoyle state NUCLEAR REACTIONS 12C(α, α'), E=200 MeV; 14C(p, t)12C, E not given; measured reaction products. 12C; deduced experimentally observed inclusive yields, monopole resonance as the breathing-mode excitation of the Hoyle state. The K600 spectrometer at the iThemba Laboratory for Accelerator-Based Sciences (iThemba LABS) in South Africa.
doi: 10.1016/j.physletb.2022.136928
2022LU01 Phys.Rev. C 105, 024305 (2022) D.W.Luo, C.Xu, Y.K.Wang, Z.H.Li, R.A.Bark, S.Q.Zhang, H.Hua, S.Y.Wang, J.Peng, X.Q.Li, H.Y.Wu, X.Wang, C.G.Wu, Q.T.Li, J.Lin, Y.Jin, W.Z.Xu, L.Mu, J.Meng, F.R.Xu, Y.L.Ye, D.X.Jiang, P.Jones, E.A.Lawrie, P.Papka, M.F.Nkalanga, T.D.Bucher, M.V.Chisapi, L.Msebi, S.Jongile, S.Ntshangase, B.R.Zikhali, S.H.Mthembu, T.Seakamela, M.A.Sithole, O.Shirihda, A.A.Aava, L.Mdletshe, K.L.Malatji, S.Mhlongo, L.Makhathini Collective structures in 62Cu NUCLEAR REACTIONS 54Cr(12C, 3np), E=67 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. 62Cu; deduced levels, J, π, high-spin levels, B(M1)/B(E2), configurations, γγ(linear polarization). Comparison with calculations using the self-consistent tilted axis cranking covariant density functional theory (TAC-C DFT). Comparison with level structures in 60,64Ca. AFRODITE array at the iThemba LABS accelerator facility.
doi: 10.1103/PhysRevC.105.024305
2022NG01 Nucl.Instrum.Methods Phys.Res. B513, 21 (2022) P.Z.Ngcobo, R.A.Bark, A.Buffler, P.Papka, D.R.Geduld, P.Jones, L.Makhathini, P.Maleka, N.Mantengu, S.S.Ntshangase, F.D.Smit Measurement of neutron production from an 18O target NUCLEAR REACTIONS 18O(p, n), E30, 42, 54, 66 MeV; measured reaction products, En, In; deduced neutron yields and σ. Comparison with FLUKA simulations.
doi: 10.1016/j.nimb.2021.12.007
2022OL03 Phys.Rev. C 105, 054319 (2022) S.D.Olorunfunmi, R.Neveling, J.Carter, P.von Neumann-Cosel, I.T.Usman, P.Adsley, A.Bahini, L.P.L.Baloyi, J.W.Brummer, L.M.Donaldson, H.Jivan, N.Y.Kheswa, K.C.W.Li, D.J.Marin-Lambarri, P.T.Molema, C.S.Moodley, G.G.O'Neill, P.Papka, L.Pellegri, V.Pesudo, E.Sideras-Haddad, F.D.Smit, G.F.Steyn, A.A.Avaa, F.Diel, F.Dunkel, P.Jones, V.Karayonchev Evolution of the isoscalar giant monopole resonance in the Ca isotope chain NUCLEAR REACTIONS Ca, 42,44,48Ca(α, α'), E=196 MeV; measured Eα, Iα; deduced σ(θ), isoscalar giant monopole resonance strength distribution in the 9.5-25.5 MeV range, nucleus incompressibility KA. Analysis with difference-of-spectra (DoS) technique using measurements at 2 different angular covege settings of the spectrometer. Comparison to previous experimental results. K600 magnetic spectrometer at iThemba LABS.
doi: 10.1103/PhysRevC.105.054319
2021AD09 Phys.Rev. C 103, 044315 (2021) P.Adsley, V.O.Nesterenko, M.Kimura, L.M.Donaldson, R.Neveling, J.W.Brummer, D.G.Jenkins, N.Y.Kheswa, J.Kvasil, K.C.W.Li, D.J.Marin-Lambarri, Z.Mabika, P.Papka, L.Pellegri, V.Pesudo, B.Rebeiro, P.-G.Reinhard, F.D.Smit, W.Yahia-Cherif Isoscalar monopole and dipole transitions in 24Mg, 26Mg, and 28Si NUCLEAR REACTIONS 24,26Mg, 28Si(α, α'), E=200 MeV; measured E(α), I(α), differential σ(θ) using K600 magnetic spectrometer for momentum analysis of α particles, and two multiwire drift chambers and two plastic scintillators at the iThemba LABS accelerator facility. 24,26Mg, 28Si; deduced levels, J, π, deformation parameters, percentage of the energy weighted sum rule (EWSR) for a level, B(E1), strength distributions for isoscalar dipole (IS1) and isoscalar monopole transitions (IS0), configurations. Comparison with Skyrme quasiparticle random-phase approximation (QRPA) and antisymmetrized molecular dynamics+generator coordinate method (AMD+GCM) calculations, and with experimental data in the ENSDF database.
doi: 10.1103/PhysRevC.103.044315
2021KA45 Phys.Rev. C 104, L061303 (2021) M.Kamil, S.Triambak, A.Magilligan, A.Garcia, B.A.Brown, P.Adsley, V.Bildstein, C.Burbadge, A.Diaz Varela, T.Faestermann, P.E.Garrett, R.Hertenberger, N.Y.Kheswa, K.G.Leach, R.Lindsay, D.J.Marin-Lambarri, F.Ghazi Moradi, N.J.Mukwevho, R.Neveling, J.C.Nzobadila Ondze, P.Papka, L.Pellegri, V.Pesudo, B.M.Rebeiro, M.Scheck, F.D.Smit, H.-F.Wirth Isospin mixing and the cubic isobaric multiplet mass equation in the lowest T=2, A=32 quintet ATOMIC MASSES 32Ar, 32Cl, 32S, 32P, 32Si; analyzed experimental masses by a cubic fit to the isobaric multiplet mass equation (IMME) for the lowest isospin T=2 quintet in A=32 nuclei; investigated isospin mixing by combining high-resolution experimental data for proton spectrum from 32Ar β-delayed proton decay, and from triton spectrum in 32S(3He, t) reaction with the state-of-the-art shell-model calculations; evaluated isospin mixing matrix elements; extracted cubic and quartic coefficients of the IMME; deduced that isospin mixing with nonanalog T=1 states contributes to the IMME breakdown. 32Ar; analyzed experimental β-delayed proton spectrum by R-matrix fit; calculated proton emission amplitudes from states in 32Cl.
doi: 10.1103/PhysRevC.104.L061303
2021OR05 Phys.Rev. C 104, L061305 (2021) J.N.Orce, E.J.Martin Montes, K.J.Abrahams, C.Ngwetsheni, B.A.Brown, M.Kumar Raju, C.V.Mehl, M.J.Mokgolobotho, E.H.Akakpo, D.L.Mavela, P.Adsley, R.A.Bark, N.Bernier, T.D.Bucher, N.R.Erasmus, T.S.Dinoko, P.M.Jones, N.Y.Kheswa, N.A.Khumalo, E.A.Lawrie, J.J.Lawrie, B.L.Lesch, S.N.T.Majola, S.S.Ntshangase, P.Papka, V.Pesudo, B.Rebeiro, O.Shirinda, M.Wiedeking, W.Yahia-Cherif Reorientation-effect measurement of the < 2+1 Ε2 2+1 > matrix element in 36Ar NUCLEAR REACTIONS 194Pt(36Ar, 36Ar), E=134.2 MeV; measured Eγ, Iγ, γ(θ), (particle)γ-coin using AFRODITE array of eight HPGe clover detectors coupled to an annular, double-sided silicon detector at iThemba LABS; analyzed Coulomb excitation yields using semiclassical coupled-channel Coulomb-excitation least-squares code GOSIA. 36Ar; deduced E2 matrix element and B(E2) for the first 2+ state, diagonal E2 matrix element and spectroscopic quadrupole moment for the first 2+ state.Systematics of Q(for first 2+)/B(E2) for first 2+ in 20Ne, 24Mg, 28Si, 32S, 36Ar. NUCLEAR MOMENTS 36Ar; measured spectroscopic quadrupole moment of the first excited 2+ state by reorientation-effect in Coulomb excitation using 194Pt(36Ar, 36Ar), E=134.2 MeV, and analyzing Coulomb excitation yields using GOSIA code. Comparison with beyond mean-field and large-scale shell-model calculations, and with experimental spectroscopic quadrupole moments for the first 2+ states in 20Ne, 24Mg, 28Si, 32S, 36Ar.
doi: 10.1103/PhysRevC.104.L061305
2020DO11 Phys.Rev. C 102, 064327 (2020) L.M.Donaldson, J.Carter, P.von Neumann-Cosel, V.O.Nesterenko, R.Neveling, P.-G.Reinhard, I.T.Usman, P.Adsley, C.A.Bertulani, J.W.Brummer, E.Z.Buthelezi, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Fujita, M.Jingo, N.Y.Kheswa, W.Kleinig, C.O.Kureba, J.Kvasil, M.Latif, K.C.W.Li, J.P.Mira, F.Nemulodi, P.Papka, L.Pellegri, N.Pietralla, V.Yu.Ponomarev, B.Rebeiro, A.Richter, N.Yu.Shirikova, E.Sideras-Haddad, A.V.Sushkov, F.D.Smit, G.F.Steyn, J.A.Swartz, A.Tamii Fine structure of the isovector giant dipole resonance in 142-150Nd and 152Sm NUCLEAR REACTIONS 142,144,146,148,150Nd, 152Sm(p, p'), E=200 MeV from the Separated Sector Cyclotron (SSC) at iThemba LABS; measured reaction products, E(p), I(p), time-of-flight using the K600 magnetic spectrometer, two multiwire drift chambers (MWDCs) and two plastic scintillators; deduced double-differential σ(E*=10-22 MeV), equivalent photoabsorption spectra, excitation-energy spectra, wavelet power spectra, fine structure of the isovector giant-dipole resonance (IVGDR), fragmentation of the one-particle-one-hole (1p1h) strength into several dominant transitions serving as doorway states in the spherical and intermediate spherical/deformed nuclei. Comparison with predictions of quasiparticle phonon model (QPM), and Skyrme separable random phase approximation (SSRPA).
doi: 10.1103/PhysRevC.102.064327
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
2020JO06 Phys.Rev. C 102, 024321 (2020) S.Jongile, A.Lemasson, O.Sorlin, M.Wiedeking, P.Papka, D.Bazin, C.Borcea, R.Borcea, A.Gade, H.Iwasaki, E.Khan, A.Lepailleur, A.Mutschler, F.Nowacki, F.Recchia, T.Roger, F.Rotaru, M.Stanoiu, S.R.Stroberg, J.A.Tostevin, M.Vandebrouck, D.Weisshaar, K.Wimmer Structure of 33Si and the magicity of the N=20 gap at Z=14 NUCLEAR REACTIONS 9Be(34Si, 33Si), E=98.5 MeV/nucleon, [34Si secondary beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction, followed by separation of fragments using the A1900 fragment separator at the NSCL-MSU facility]; measured reaction residues using the S800 spectrograph, Eγ, Iγ, (33Si)γ-coin using the GRETINA array for γ detection, momentum distributions. 33Si; deduced levels, J, π, L-transfers in one-nucleon knockout reactions, population fractions, partial cross sections of final states, spectroscopic factors. Comparison with shell-model calculations with SDPF-U-MIX interaction, and with previous experimental results.
doi: 10.1103/PhysRevC.102.024321
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
2019BR10 Phys.Rev. C 99, 054330 (2019) C.P.Brits, K.L.Malatji, M.Wiedeking, B.V.Kheswa, S.Goriely, F.L.Bello Garrote, D.L.Bleuel, F.Giacoppo, A.Gorgen, M.Guttormsen, K.Hadynska-Klek, T.W.Hagen, S.Hilaire, V.W.Ingeberg, H.Jia, M.Klintefjord, A.C.Larsen, S.N.T.Majola, P.Papka, S.Peru, B.Qi, T.Renstrom, S.J.Rose, E.Sahin, S.Siem, G.M.Tveten, F.Zeiser Nuclear level densities and γ-ray strength functions of 180, 181, 182Ta NUCLEAR REACTIONS 181Ta(d, p), E=12.5 MeV; 181Ta(d, d'), (d, t), E=12.5, 15 MeV; 181Ta(3He, 3He'), (3He, α), E=34 MeV; measured Ep, Ip, Ed, Id, E(t), I(t), E(3He), I(3He), Eα, Iα, Eγ, Iγ, and (particle)γ-coin using the SiRi particle telescope for charged particles and CACTUS scintillator for γ detection at the Oslo Cyclotron Laboratory. 180,181,182Ta; deduced γ strength functions (γSF), nuclear level densities (NLDs) by OSLO method, energy and γ deformation of scissors resonance (SR). Back-shifted Fermi-gas, constant temperature plus Fermi gas, and Hartree-Fock-Bogoliubov plus combinatorial models used for absolute normalization of experimental NLDs at the neutron separation energies. 181Ta(n, γ), E=0.004-1 MeV; deduced σ(E). Comparison with theoretical model calculations, and with previous experimental results. 181,182Ta; calculated potential energy surfaces in (ϵ2, γ) plane for the ground states using the cranking Nilsson model plus shell correction method.
doi: 10.1103/PhysRevC.99.054330
2019LA24 Acta Phys.Pol. B50, 461 (2019) M.B.Latif, I.T.Usman, J.Carter, E.Sideras-Haddad, L.M.Donaldson, M.Jingo, C.O.Kureba, L.Pellegri, R.Neveling, F.D.Smit, F.Nemulodi, P.von Neumann-Cosel, Y.Yu.Ponomarev, P.Papka, J.A.Swartz, G.R.J.Cooper, H.Fujita, P.Papakonstantinou, E.Litvinova Evolution of the IVGDR and Its Fine Structure from Doubly-magic 40Ca to Neutron-rich 48Ca Probed Using (p, p') Scattering NUCLEAR REACTIONS 40,42,44,48Ca(p, p'), E=200 MeV; measured reaction products, Ep, Ip; deduced σ(θ), photoabsorption σ, structure of Isovector Giant Dipole Resonance; calculated photoabsorpion σ using RQTBA, RQRPA and QRPA approaches. Wavelet analysis of the data.
doi: 10.5506/aphyspolb.50.461
2019MA20 Phys.Lett. B 791, 403 (2019) K.L.Malatji, M.Wiedeking, S.Goriely, C.P.Brits, B.V.Kheswa, F.L.Bello Garrote, D.L.Bleuel, F.Giacoppo, A.Gorgen, M.Guttormsen, K.Hadynska-Klek, T.W.Hagen, V.W.Ingeberg, M.Klintefjord, A.C.Larsen, P.Papka, T.Renstrom, E.Sahin, S.Siem, L.Siess, G.M.Tveten, F.Zeiser Re-estimation of 180Ta nucleosynthesis in light of newly constrained reaction rates NUCLEAR REACTIONS 180,181,182Ta(n, γ), E ∼ 30 keV; analyzed available data on the nuclear level densities and γ-ray strength functions below the neutron thresholds; calculated σ, reaction rates; deduced s- and p-process nucleosynthesis results.
doi: 10.1016/j.physletb.2019.03.013
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
2018DO01 Phys.Lett. B 776, 133 (2018) L.M.Donaldson, C.A.Bertulani, J.Carter, V.O.Nesterenko, P.von Neumann-Cosel, R.Neveling, V.Yu.Ponomarev, P.-G.Reinhard, I.T.Usman, P.Adsley, J.W.Brummer, E.Z.Buthelezi, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Fujita, M.Jingo, W.Kleinig, C.O.Kureba, J.Kvasil, M.Latif, K.C.W.Li, J.P.Mira, F.Nemulodi, P.Papka, L.Pellegri, N.Pietralla, A.Richter, E.Sideras-Haddad, F.D.Smit, G.F.Steyn, J.A.Swartz, A.Tamii Deformation dependence of the isovector giant dipole resonance: The neodymium isotopic chain revisited NUCLEAR REACTIONS 144,146,148,150Nd, 152Sm(p, p'), E=200 MeV; measured reaction products, Eγ, Iγ; deduced σ, σ(θ, E), σ(θ). Comparison with DWBA calculations.
doi: 10.1016/j.physletb.2017.11.025
2018JI10 Eur.Phys.J. A 54, 234 (2018) M.Jingo, E.Z.Buthelezi, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, C.O.Kureba, A.M.Krumbholz, P.von Neumann-Cosel, R.Neveling, P.Papka, I.Poltoratska, V.Yu.Ponomarev, A.Richter, E.Sideras-Haddad, F.D.Smit, J.A.Swartz, A.Tamii, I.T.Usman Studies of the Giant Dipole Resonance in 27Al , 40Ca , 56Fe , 58Ni and 208Pb with high energy-resolution inelastic proton scattering under 0 degree NUCLEAR REACTIONS 27Al, 40Ca, 56Fe, 58Ni, 208Pb(p, p'), E=200 MeV; measured Ep, Ip(θ) using two Vertical Drift Chambers and two plastic scintillators behind them; deduced σ(E, θ), IsoVector Giant Dipole Resonance (IVGDR) energy, Coulomb excitation σ vs E*, equivalent photoabsorption σ, IVGDR fine structure using Continuous Wavelet Transform (CWT) and Discrete Wavelet Transform (DWT); calculated equivalent photoabsorption σ using Quasiparticle-Phonon Model (QPM) with (1+2)-phonon and 1-phonon model spaces, power spectra from CWT analysis.
doi: 10.1140/epja/i2018-12664-5
2018MU16 Phys.Rev. C 98, 051302 (2018) N.J.Mukwevho, B.M.Rebeiro, D.J.Marin-Lambarri, S.Triambak, P.Adsley, N.Y.Kheswa, R.Neveling, L.Pellegri, V.Pesudo, F.D.Smit, E.H.Akakpo, J.W.Brummer, S.Jongile, M.Kamil, P.Z.Mabika, F.Nemulodi, J.N.Orce, P.Papka, G.F.Steyn, W.Yahia-Cherif Second T=3/2 state in 9B and the isobaric multiplet mass equation NUCLEAR REACTIONS 9Be(3He, t), (3He, d), E=50.61 MeV pulsed beam; measured E(t), I(t), E(d), I(d), and time-of-flight using the K600 magnetic spectrometer with multiwire drift chamber and plastic scintillator for particle identification at the cyclotron facility of iThemba LABS. 9B; deduced levels, J, π, isospin, energy of the second T=3/2 state. Comparison with previous experimental data. Discussed implications for the cubic isobaric multiplet mass equation (IMME) for the A=9 system.
doi: 10.1103/PhysRevC.98.051302
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
2017AD07 Phys.Rev. C 95, 024319 (2017) P.Adsley, D.G.Jenkins, J.Cseh, S.S.Dimitrova, J.W.Brummer, K.C.W.Li, D.J.Marin-Lambarri, K.Lukyanov, N.Y.Kheswa, R.Neveling, P.Papka, L.Pellegri, V.Pesudo, L.C.Pool, G.Riczu, F.D.Smit, J.J.van Zyl, E.Zemlyanaya α clustering in 28Si probed through the identification of high-lying 0+ states NUCLEAR REACTIONS 28Si(α, α'), E=200 MeV; measured scattered particles, σ(θ) using K600 magnetic spectrometer at iThemba LABS, natural Si target. 28Si; deduced levels, L-transfers, J, π, high-lying 0+ states. Comparison with multichannel dynamical symmetry (MUSY) calculations.
doi: 10.1103/PhysRevC.95.024319
2017AD34 Phys.Rev. C 96, 055802 (2017) P.Adsley, J.W.Brummer, K.C.W.Li, D.J.Marin-Lambarri, N.Y.Kheswa, L.M.Donaldson, R.Neveling, P.Papka, L.Pellegri, V.Pesudo, L.C.Pool, F.D.Smit, J.J.van Zyl Re-examining the 26Mg(α, α')26Mg reaction: Probing astrophysically important states in 26Mg NUCLEAR REACTIONS 26Mg(α, α'), E=200 MeV; measured Eα, Iα, differential σ(θ) using K600 magnetic spectrometer at iThemba LABS. 26Mg; deduced levels, α-resonances, L-transfer, J, π, new 0+ at 10.824 MeV. DWBA analysis of σ(θ) data. Comparison with previous experimental data. Implications for astrophysical reaction rate for 22Ne(α, γ)26Mg reaction.
doi: 10.1103/PhysRevC.96.055802
2017KH08 Phys.Rev. C 95, 045805 (2017) B.V.Kheswa, M.Wiedeking, J.A.Brown, A.C.Larsen, S.Goriely, M.Guttormsen, F.L.Bello Garrote, L.A.Bernstein, D.L.Bleuel, T.K.Eriksen, F.Giacoppo, A.Gorgen, B.L.Goldblum, T.W.Hagen, P.E.Koehler, M.Klintefjord, K.L.Malatji, J.E.Midtbo, H.T.Nyhus, P.Papka, T.Renstrom, S.J.Rose, E.Sahin, S.Siem, T.G.Tornyi 137, 138, 139La (n, γ) cross sections constrained with statistical decay properties of 138, 139, 140La nuclei NUCLEAR REACTIONS 139La(3He, α), (3He, 3He'), E=38 MeV; 139La(d, p), E=13.5 MeV; measured α, 3He and proton spectra, Eγ, Iγ, αγ-, (3He)γ-, and pγ-coin using SiRi array for particles and CACTUS array for γ rays. 138,139,140La; deduced nuclear level densities (NLDs)and γ-ray strength functions (γSF). Comparison with previous experimental data, and with microscopic calculations using HFB+Comb, Fermi gas (BSFG1+CT) and BSFG2+CT models. 137,138,139La(n, γ), E=0.001-1 MeV; calculated σ(E) with the TALYS reaction code using the measured NLDs and γSFs as inputs, and compared to available experimental data.
doi: 10.1103/PhysRevC.95.045805
2017LI08 Phys.Rev. C 95, 031302 (2017) K.C.W.Li, R.Neveling, P.Adsley, P.Papka, F.D.Smit, J.W.Brummer, C.Aa.Diget, M.Freer, M.N.Harakeh, Tz.Kokalova, F.Nemulodi, L.Pellegri, B.Rebeiro, J.A.Swartz, S.Triambak, J.J.van Zyl, C.Wheldon Characterization of the proposed 4-α cluster state candidate in 16O NUCLEAR REACTIONS 16O(α, α'), E=200 MeV; measured Eα, Iα, E(p), I(p), (particle)(particle)-coin, angular correlations of charged-particle decays from 16O via α and proton decays using K600 magnetic spectrometer at iThemba LABS. 16O; deduced levels, resonances, L-transfers, J, π, total widths and branching ratios for particle decays of resonances extracted from R-matrix fits, a resonance at 15.090 MeV, 0+ suggested as a candidate for the 4α cluster state, consistent with several theoretical cluster calculations.
doi: 10.1103/PhysRevC.95.031302
2017LO05 Phys.Rev. C 95, 055803 (2017) A.M.Long, T.Adachi, M.Beard, G.P.A.Berg, Z.Buthelezi, J.Carter, M.Couder, R.J.deBoer, R.W.Fearick, S.V.Fortsch, J.Gorres, J.P.Mira, S.H.T.Murray, R.Neveling, P.Papka, F.D.Smit, E.Sideras-Haddad, J.A.Swartz, R.Talwar, I.T.Usman, M.Wiescher, J.J.Van Zyl, A.Volya Indirect study of the stellar 34Ar(α, p)37K reaction rate through 40Ca(p, t)38Ca reaction measurements NUCLEAR REACTIONS 40Ca(p, t)38Ca, E=100 MeV; measured spectra using the K=600 magnetic spectrograph, triton spectra at K=200 Separated Sector Cyclotron facility of iThemba LABS. 38Ca; deduced levels, α-unbound states, resonances, α-spectroscopic factors. Comparison with previous experimental results. 34Ar(α, p)37K, T9=0.2-3.0; deduced reaction rates as a function of stellar temperature, and compared with theoretical model calculations using NON-SMOKER-v5.0w and TALYS 1.8 codes. Relevance to type I x-ray bursts (XRBs).
doi: 10.1103/PhysRevC.95.055803
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
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
2016MA13 Eur.Phys.J. A 52, 28 (2016) P.L.Masiteng, A.A.Pasternak, E.A.Lawrie, O.Shirinda, J.J.Lawrie, R.A.Bark, S.P.Bvumbi, N.Y.Kheswa, R.Lindsay, E.O.Lieder, R.M.Lieder, T.E.Madiba, S.M.Mullins, S.H.T.Murray, J.Ndayishimye, S.S.Ntshangase, P.Papka, J.F.Sharpey-Schafer DSAM lifetime measurements for the chiral pair in 194Tl NUCLEAR REACTIONS 181Ta(18O, 5n), E=91 MeV; calculated high-spin states, J, π, B(M1), B(E2) vs spin, energy vs spin for different rotational bands using recent data measured by the same group with Doppler Shift Attenuation Method (DSAM); deduced T1/2 of de-excitation of high-spin states belonging to different rotational bands. B(E2), B(M1) compared to data.
doi: 10.1140/epja/i2016-16028-y
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
2015KH02 Phys.Lett. B 744, 268 (2015) B.V.Kheswa, M.Wiedeking, F.Giacoppo, S.Goriely, M.Guttormsen, A.C.Larsen, F.L.Bello Garrote, T.K.Eriksen, A.Gorgen, T.W.Hagen, P.E.Koehler, M.Klintefjord, H.T.Nyhus, P.Papka, T.Renstrom, S.Rose, E.Sahin, S.Siem, T.Tornyi Galactic production of 138La: Impact of 138, 139La statistical properties NUCLEAR REACTIONS 139La(3He, X)138La/139La, E=38 MeV; measured reaction products, Eγ, Iγ; deduced σ, γ-ray strength functions, nuclear level densities, Maxwellian-averaged σ. Comparison with available data.
doi: 10.1016/j.physletb.2015.03.065
2015RO15 Phys.Rev. C 92, 024323 (2015) D.Rodrigues, D.Hojman, S.M.Lenzi, M.A.Cardona, E.Farnea, M.Axiotis, C.Beck, P.Bednarczyk, P.G.Bizzetti, A.M.Bizzetti-Sona, F.Della Vedova, J.Grebosz, F.Haas, M.Kmiecik, A.Maj, W.Meczynski, D.R.Napoli, M.Nespolo, P.Papka, A.Sanchezi Zafra, J.Styczen, S.Thummerer, M.Zieblinski High-spin states and band terminations in 49V NUCLEAR REACTIONS 28Si(28Si, 3pα), E=117 MeV; measured Eγ, Iγ, (particle)γ-coin, γγ(θ)(DCO) using the EUROBALL γ-ray detector array and recoil-filter detector (RFD) at IReS Strasbourg Vivitron facility. 49V; deduced high-spin levels, J, π, multipolarity, mixing ratio, bands, configuration, band termination. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.92.024323
2015SW01 Phys.Rev. C 91, 034317 (2015) J.A.Swartz, B.A.Brown, P.Papka, F.D.Smit, R.Neveling, E.Z.Buthelezi, S.V.Fortsch, M.Freer, Tz.Kokalova, J.P.Mira, F.Nemulodi, J.N.Orce, W.A.Richter, G.F.Steyn Spectroscopy of narrow, high-lying, low-spin states in 20Ne NUCLEAR REACTIONS 22Ne(p, t), E=60 MeV; measured triton spectra, σ(θ) using QDD magnetic spectrometer at iThemba Labs. 20Ne; deduced levels, J, π, possible 5α cluster state, isospin T=2 states in 20Ne, 20O and 20F. Comparison of angular distributions with calculations using FRESCO code, and structure data with shell-model calculations using OXBASH code.
doi: 10.1103/PhysRevC.91.034317
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
2014BA29 Int.J.Mod.Phys. E23, 1461001 (2014) R.A.Bark, E.O.Lieder, R.M.Lieder, E.A.Lawrie, J.J.Lawrie, S.P.Bvumbi, N.Y.Kheswa, S.S.Ntshangase, T.E.Madiba, P.L.Masiteng, S.M.Mullins, S.Murray, P.Papka, O.Shirinda, Q.B.Chen, S.Q.Zhang, Z.H.Zhang, P.W.Zhao, C.Xu, J.Meng, D.G.Roux, Z.P.Li, J.Peng, B.Qi, S.Y.Wang, Z.G.Xiao Studies of chirality in the mass 80, 100 and 190 regions NUCLEAR REACTIONS 96Zr(14N, 4n)106Ag, E not given; measured reaction products, Eγ, Iγ; deduced levels, J, π, T1/2, chiral bands, B(M1), B(E2). Comparison with particle-rotor calculations.
doi: 10.1142/S0218301314610011
2014LI19 Phys.Rev.Lett. 112, 202502 (2014) E.O.Lieder, R.M.Lieder, R.A.Bark, Q.B.Chen, S.Q.Zhang, J.Meng, E.A.Lawrie, J.J.Lawrie, S.P.Bvumbi, N.Y.Kheswa, S.S.Ntshangase, T.E.Madiba, P.L.Masiteng, S.M.Mullins, S.Murray, P.Papka, D.G.Roux, O.Shirinda, Z.H.Zhang, P.W.Zhao, Z.P.Li, J.Peng, B.Qi, S.Y.Wang, Z.G.Xiao, C.Xu Resolution of Chiral Conundrum in 106Ag: Doppler-Shift Lifetime Investigation NUCLEAR REACTIONS 96Zr(14N, 4n), E=71 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced level scheme, J, π, high spin negative parity bands, B(M1), B(E2). Particle-rotor model calculations.
doi: 10.1103/PhysRevLett.112.202502
2014PA50 Eur.Phys.J. A 50, 158 (2014) P.Papka, J.F.Sharpey-Schafer, B.A.Brown, T.S.Dinoko, E.A.M.A.Khaleel, E.A.Lawrie, J.J.Lawrie, K.C.W.Li, S.N.T.Majola, W.A.Richter, O.Shirinda, M.A.Stankiewicz, P.Vymers, M.Wiedeking High-resolution two-proton stripping to 2p-1h 7/2- states via the 59Co(3He, n γ)61Cu reaction NUCLEAR REACTIONS 59Co(3He, nγ), E=22.5 MeV; measured Eγ, Iγ, nγ-coin using AFRODITE escape-suppressed spectrometer, HPGe Clover detectors in BGO shields, neutrons using NE102A plastic scintillators; deduced γ-ray spectra, coincidence n-γ spectra, gated γ spectra, population strengths, branching ratio, levels, J, π, γ transitions, single-proton states outside 60Ni.
doi: 10.1140/epja/i2014-14158-x
2013KO14 Phys.Rev. C 87, 057307 (2013) Tz.Kokalova, M.Freer, Z.Buthelezi, J.Carter, R.W.Fearick, S.V.Fortsch, H.Fujita, R.Neveling, P.Papka, F.D.Smit, J.A.Swartz, I.Usman Precision measurement of the 9.641 MeV, 3- state in 12C NUCLEAR REACTIONS 12C(p, p'), E=66 MeV; measured E(p), I(p), σ(θ) using K600 magnetic spectrometer at iThemba LABS. 12C; deduced width of 9.641 MeV, 3- state. R-matrix analysis. Wigner limit and α-particle content.
doi: 10.1103/PhysRevC.87.057307
2012FR05 Phys.Rev. C 86, 034320 (2012) M.Freer, M.Itoh, T.Kawabata, H.Fujita, H.Akimune, Z.Buthelezi, J.Carter, R.W.Fearick, S.V.Fortsch, M.Fujiwara, U.Garg, N.Hashimoto, K.Kawase, S.Kishi, T.Murakami, K.Nakanishi, Y.Nakatsugawa, B.K.Nayak, R.Neveling, S.Okumura, S.M.Perez, P.Papka, H.Sakaguchi, Y.Sasamoto, F.D.Smit, J.A.Swartz, H.Takeda, S.Terashima, M.Uchida, I.Usman, Y.Yasuda, M.Yosoi, J.Zenihiro Consistent analysis of the 2+ excitation of the 12C Hoyle state populated in proton and α-particle inelastic scattering NUCLEAR REACTIONS 12C(p, p'), E=66 MeV; 12C(α, α'), E=386 MeV; measured 12C excitation spectra. 12C; deduced levels, 2+ excitation of the 0+ Hoyle state. R-matrix analysis. Discussed potential geometric arrangements of the cluster structures.
doi: 10.1103/PhysRevC.86.034320
2012SM06 Phys.Rev. C 86, 037301 (2012) F.D.Smit, F.Nemulodi, Z.Buthelezi, J.Carter, R.W.Fearick, S.V.Fortsch, M.Freer, H.Fujita, M.Jingo, C.O.Kureba, J.Mabiala, J.Mira, R.Neveling, P.Papka, G.F.Steyn, J.A.Swartz, I.T.Usman, J.J.van Zyl No evidence of an 11.16 MeV 2+ state in 12C NUCLEAR REACTIONS 11B(3He, d)12C, E=44 MeV; measured Ed, Id, energy loss, time of flight using magnetic spectrometer, σ(θ). R-matrix analysis; deduced level; no evidence for a previously reported 2+ state at 11.16 MeV.
doi: 10.1103/PhysRevC.86.037301
2011BE06 Acta Phys.Pol. B42, 747 (2011) C.Beck, P.Papka, A.Sanchez i Zafra, S.Thummerer, F.Azaiez, P.Bednarczyk, S.Courtin, D.Curien, O.Dorvaux, A.Goasduff, D.Lebhertz, A.Nourreddine, M.Rousseau, M.-D.Salsac, W.von Oertzen, B.Gebauer, C.Wheldon, Tz.Kokalova, G.Efimov, V.Zherebchevsky, Ch.Schulz, H.G.Bohlen, D.Kamanin, G.de Angelis, A.Gadea, S.Lenzi, D.R.Napoli, S.Szilner, M.Milin, W.N.Catford, D.G.Jenkins, G.Royer Clusters in Light Nuclei
doi: 10.5506/APhysPolB.42.747
2011BE19 Int.J.Mod.Phys. E20, 943 (2011) C.Beck, N.Rowley, P.Papka, S.Courtin, M.Rousseau, F.A.Souza, N.Carlin, F.Liguori Neto, M.M.De Moura, M.G.Del Santo, A.A.I.Suade, M.G.Munhoz, E.M.Szanto, A.Szanto de Toledo, N.Keeley, A.Diaz-Torres, K.Hagino Cluster model for reactions induced by weakly bound and/or exotic halo nuclei with medium-mass targets
doi: 10.1142/S0218301311019027
2011MO06 Phys.Rev. C 83, 037302 (2011) B.Mouginot, E.Khan, R.Neveling, F.Azaiez, E.Z.Buthelezi, S.V.Fortsch, S.Franchoo, H.Fujita, J.Mabiala, J.P.Mira, P.Papka, A.Ramus, J.A.Scarpaci, F.D.Smit, I.Stefan, J.A.Swartz, I.Usman Search for the giant pairing vibration through ( p, t) reactions around 50 and 60 MeV NUCLEAR REACTIONS 120Sn, 205Pb(p, t), E=50, 60 MeV; measured E(t), I(t), TOF; deduced σ; investigated existence of giant pairing vibration (GPV) in 120Sn and 205Pb. No clear signal found for GPV.
doi: 10.1103/PhysRevC.83.037302
2011NE16 Nucl.Instrum.Methods Phys.Res. A 654, 29 (2011) R.Neveling, H.Fujita, F.D.Smit, T.Adachi, G.P.A.Berg, E.Z.Buthelezi, J.Carter, J.L.Conradie, M.Couder, R.W.Fearick, S.V.Fortsch, D.T.Fourie, Y.Fujita, J.Gorres, K.Hatanaka, M.Jingo, A.M.Krumbholz, C.O.Kureba, J.P.Mira, S.H.T.Murray, P.Von Neumann-Cosel, S.O'Brien, P.Papka, I.Poltoratska, A.Richter, E.Sideras-Haddad, J.A.Swartz, A.Tamii, I.T.Usman, J.J.Van Zyl High energy-resolution zero-degree facility for light-ion scattering and reactions at iThemba LABS NUCLEAR REACTIONS 40Ca(p, p'), E=200 MeV; measured products, 40Ca; deduced σ(θ). Data were imported from EXFOR entry D0706.
doi: 10.1016/j.nima.2011.06.077
2011PA15 Int.J.Mod.Phys. E20, 1034 (2011) P.Papka, F.Nemulodi, R.A.Bark, N.Y.Kheswa, E.A.Lawrie, J.J.Lawrie, E.O.Lieder, R.M.Lieder, T.E.Madiba, S.M.Mullins, R.T.Newman, T.T.Ibrahim, O.Shirinda, T.D.Singo, R.Alvarez-Rodriguez, J.Gal, G.Kalinka, J.Molnar, B.M.Nyako, J.Timar, S.P.Fox Experimental investigation of 6Be cluster decay RADIOACTIVITY 6Be(α) [from 6Li(3He, t)6Be, E=50 MeV]; measured proton spectrum, Eα, Iα; deduced two-body decay from resonant state.
doi: 10.1142/S0218301311019210
2011SH08 Eur.Phys.J. A 47, 6 (2011) J.F.Sharpey-Schafer, T.E.Madiba, S.P.Bvumbi, E.A.Lawrie, J.J.Lawrie, A.Minkova, S.M.Mullins, P.Papka, D.G.Roux, J.Timar Blocking of coupling to the 0+2 excitation in 154Gd by the (505)11/2- neutron in 155Gd NUCLEAR REACTIONS 154Sm(α, 3n), E=35 MeV; measured Eγ, Iγ, γγ-coin using AFRODITE spectrometer. 154,155Gd deduced bands, γ vibration, quadrupole pairing forces, oblate orbitals, blocking of collective modes.
doi: 10.1140/epja/i2011-11006-7
2011WA21 Phys.Lett. B 703, 40 (2011) S.Y.Wang, B.Qi, L.Liu, S.Q.Zhang, H.Hua, X.Q.Li, Y.Y.Chen, L.H.Zhu, J.Meng, S.M.Wyngaardt, P.Papka, T.T.Ibrahim, R.A.Bark, P.Datta, E.A.Lawrie, J.J.Lawrie, S.N.T.Majola, P.L.Masiteng, S.M.Mullins, J.Gal, G.Kalinka, J.Molnar, B.M.Nyako, J.Timar, K.Juhasz, R.Schwengner The first candidate for chiral nuclei in the A ∼ 80 mass region: 80Br NUCLEAR REACTIONS 76Ge(11B, 3nα), (7Li, 3n), E=54 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced new band on the top of yrast, B(M1)/B(E2), quadrupole deformation parameters, angular momentum.
doi: 10.1016/j.physletb.2011.07.055
2010BE22 Nucl.Phys. A834, 440c (2010) C.Beck, N.Rowley, P.Papka, S.Courtin, M.Rousseau, F.A.Souza, N.Carlin, R.Liguori Neto, M.M.de Moura, M.G.Del Santo, A.A.P.Suaide, M.G.Munhoz, E.M.Szanto, A.Szanto de Toledo, N.Keeley, A.Diaz-Torres, K.Hagino Reaction mechanisms for weakly-bound, stable nuclei and unstable, halo nuclei on medium-mass targets NUCLEAR REACTIONS 59Co(6Li, X), E=10-40 MeV; calculated evaporation residue σ, σ(θ). 58Ni(7Be, 7Be), E=15.09, 17.13, 18.53, 19.93, 21.43 MeV; calculated σ(θ). Discussed interplay of different processes and systematics of reaction mechanism. Comparison with data.
doi: 10.1016/j.nuclphysa.2010.01.059
2010FR03 Nucl.Phys. A834, 621c (2010) M.Freer, H.Fujita, Z.Buthelezi, J.Carter, R.W.Fearick, S.V.Fortsch, R.Neveling, S.M.Perez, P.Papka, F.D.Smit, J.A.Swartz, I.Usman, P.J.Haigh, N.I.Ashwood, T.Bloxham, N.Curtis, P.McEwan, H.G.Bohlen, T.Dorsch, Tz.Kokalova, Ch.Schulz, C.Wheldon Cluster Structure of 12C and 11Be NUCLEAR REACTIONS 12C(p, p'), E=66 MeV; measured Ep, Ip(θ=10null, 16null, 28null). 9Be(16O, 14O), E=234 MeV; measured E(particle), I(particle). 11Be; deduced levels, J, π. 11Be, 12C calculated levels, J, π, rotational and vibrational bands assuming 2α+3n for 11Be and 3α for 12C.
doi: 10.1016/j.nuclphysa.2010.01.107
2010MU05 J.Phys.(London) G37, 105104 (2010) T.Munoz-Britton, M.Freer, N.I.Ashwood, T.A.D.Brown, W.N.Catford, N.Curtis, S.P.Fox, B.R.Fulton, C.W.Harlin, A.M.Laird, P.Mumby-Croft, A.St.J.Murphy, P.Papka, D.L.Price, K.Vaughan, D.L.Watson, D.C.Weisser Search for the 2+ excitation of the Hoyle state in 12C using the 12C(12C, 3α)12C reaction NUCLEAR REACTIONS 12C(12C, 3α)12C, E=101.5 MeV; measured reaction products, Eα, Iα; deduced excitation energy spectrum, J, π, no evidence of 2+ state.
doi: 10.1088/0954-3899/37/10/105104
2010NT01 Phys.Rev. C 82, 041305 (2010); Publisher's Note Phys.Rev. C 82, 059904 (2010) S.S.Ntshangase, R.A.Bark, D.G.Aschman, S.Bvumbi, P.Datta, P.M.Davidson, T.S.Dinoko, M.E.A.Elbasher, K.Juhasz, E.M.A.Khaleel, A.Krasznahorkay, E.A.Lawrie, J.J.Lawrie, R.M.Lieder, S.N.T.Majola, P.L.Masiteng, H.Mohammed, S.M.Mullins, P.Nieminen, B.M.Nyako, P.Papka, D.G.Roux, J.F.Sharpey-Shafer, O.Shirinda, M.A.Stankiewicz, J.Timar, A.N.Wilson Electric dipole moments in 230, 232U and implications for tetrahedral shapes NUCLEAR REACTIONS 232Th(α, 4n), E=42 MeV; 232Th(α, 6n), E=61 MeV; measured Eγ, Iγ, γγ-, γγ(recoil)-coin. 230,232U; deduced levels, J, π, rotational bands, octupole bands, B(E1)/B(E2) ratios, electric dipole moments. Systematics of ground state and octupole bands in 226,228Ra, 228,230Th, 230,232U. Systematics of electric dipole moment in Ra, Th and U isotopes with N=130, 134, 138, 142 and 146; and comparison with Skyrme Hartree-Fock calculations in the literature.
doi: 10.1103/PhysRevC.82.041305
2010PA11 Phys.Rev. C 81, 054308 (2010) P.Papka, R.Alvarez-Rodriguez, F.Nemulodi, R.A.Bark, S.P.Fox, J.Gal, T.T.Ibrahim, G.Kalinka, N.Y.Kheswa, E.A.Lawrie, J.J.Lawrie, E.O.Lieder, R.M.Lieder, T.E.Madiba, J.Molnar, S.M.Mullins, R.T.Newman, B.M.Nyako, O.Shirinda, T.D.Singo, J.Timar Decay of 6Be populated in the 6Li(3He, 3H) charge-exchange reaction NUCLEAR REACTIONS 6Li(3He, t)6Be, E=50 MeV; measured particle spectra, (particle)(particle)-coin, angular distributions; deduced particle-particle correlations and Dalitz plots for the α-p-p breakup particles from 6Be. Comparison with sequential and 3-body resonance calculations.
doi: 10.1103/PhysRevC.81.054308
2010SH16 Nucl.Phys. A834, 45c (2010) J.F.Sharpey-Schafer, R.A.Bark, S.P.Bvumbi, E.A.Lawrie, J.J.Lawrie, T.E.Madiba, S.N.T.Majola, A.Minkova, S.M.Mullins, P.Papka, D.G.Roux, J.Timar A double vacuum, configuration dependent pairing and lack of β-vibrations in transitional nuclei: Band structure of N = 88 to N = 91 Nuclei NUCLEAR REACTIONS 152,154Sm(α, 4n), E=45 MeV; 152Sm(α, 2n), E=25 MeV; 154Sm(α, 3n), E=35 MeV; measured Eγ, Iγ, γγ-coin, polarization. 152,154,155Gd; deduced levels, J, π, rotational bands, bands.
doi: 10.1016/j.nuclphysa.2009.12.014
2009BE34 Phys.Rev. C 80, 034604 (2009) C.Beck, P.Papka, A.Sanchez i Zafra, S.Thummerer, F.Azaiez, P.Bednarczyk, S.Courtin, D.Curien, O.Dorvaux, D.Lebhertz, A.Nourreddine, M.Rousseau, W.von Oertzen, B.Gebauer, C.Wheldon, Tz.Kokalova, G.de Angelis, A.Gadea, S.Lenzi, S.Szilner, D.R.Napoli, W.N.Catford, D.G.Jenkins, G.Royer Binary reaction decays from 24Mg+12C NUCLEAR REACTIONS 12C(24Mg, X), E=130 MeV; measured Eγ, Iγ, γγ-, (fragment)γ-coin using Binary Reaction Spectrometer (BRS) in coincidence with Euroball IV array. 24Mg, 20Ne, 16O; deduced levels, J, π, deformations. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.80.034604
2009FR07 Phys.Rev. C 80, 041303 (2009) M.Freer, H.Fujita, Z.Buthelezi, J.Carter, R.W.Fearick, S.V.Fortsch, R.Neveling, S.M.Perez, P.Papka, F.D.Smit, J.A.Swartz, I.Usman 2+ excitation of the 12C Hoyle state NUCLEAR REACTIONS 12C(p, p'), E=66 MeV; 13C(p, p'), E=200 MeV; measured Ep and σ(θ). 12C; deduced levels, J, π, 2+ excitation of the Hoyle state in 12C. Coupled-channel (CCRC) analysis. Implications for the 8Be+4He reaction rate in stellar environments discussed.
doi: 10.1103/PhysRevC.80.041303
2008BE38 Int.J.Mod.Phys. E17, 2049 (2008) C.Beck, A.Sanchez i zafra, P.Papka, S.Thummerer, F.Azaiez, P.Bednarczyk, S.Courtin, D.Curien, O.Dorvaux, D.Lebhertz, A.Nourreddine, J.Robin, M.Rousseau, W.Von Oertzen, B.Gebauer, Tz.Kokalova, C.Wheldon, G.De Angelis, A.Gadea, S.Lenzi, S.Szilner, D.R.Napoli, W.N.Catford, D.G.Jenkins, G.Royer Alpha-cluster states populated in 24Mg + 12C NUCLEAR REACTIONS 12C(24Mg, X)16O/20Ne, E=130 MeV; measured Eγ, Iγ, particle-γ-coin.; deduced energy levels, J, π, level scheme.
doi: 10.1142/S0218301308011070
2008SA04 Nucl.Phys. A801, 1 (2008) M.-D.Salsac, F.Haas, S.Courtin, A.Algora, C.Beck, S.Beghini, B.R.Behera, R.Chapman, L.Corradi, Z.Dombradi, E.Farnea, E.Fioretto, A.Gadea, D.G.Jenkins, A.Latina, D.Lebhertz, S.Lenzi, X.Liang, N.Marginean, G.Montagnoli, D.Napoli, P.Papka, I.Pokrovski, G.Pollarolo, M.Rousseau, E.Sahin, A.Sanchez i Zafra, F.Scarlassara, D.Sohler, A.M.Stefanini, S.Szilner, M.Trotta, C.Ur, F.Della Vedova, Z.M.Wang, K.T.Wiedemann Decay of a narrow and high spin 24Mg + 24Mg resonance NUCLEAR REACTIONS 24Mg(24Mg, 24Mg'), 24Mg(24Mg, X)45Ti/44Sc/42Ca/41Ca/41K/39K/38Ar/37Ar, E=91.72, 92.62 MeV; measured (fragment)γ-, (charged particle)γ- and γγ-coin; deduced ON/OFF resonance yield ratios for the inelastic and fusion evaporation channels. ON resonance formation of 48Cr discussed. 45Ti deduced levels, J, π.
doi: 10.1016/j.nuclphysa.2007.12.007
2008VO07 Eur.Phys.J. A 36, 279 (2008) W.von Oertzen, B.Gebauer, G.Efimov, V.Zherebchevsky, Tz.Kokalova, S.Thummerer, Ch.Schulz, H.G.Bohlen, D.Kamanin, C.Beck, D.Curien, P.Papka, M.Rousseau, G.Royer, G.de Angelis Fission and ternary cluster decay of hyper-deformed 56Ni NUCLEAR REACTIONS 24Mg(32S, F), E=165.4 MeV; measured fission fragment energy, yields, (fragment)(fragment)-coin using Euroball-IV array; deduced reaction mechanism and ternary fission contribution using an extended Hauser-Feshbach method.
doi: 10.1140/epja/i2008-10592-7
2008WH02 Nucl.Phys. A811, 276 (2008) C.Wheldon, Tz.Kokalova, W.von Oertzen, B.Gebauer, H.G.Bohlen, Ch.Schulz, S.Thummerer, G.Efimov, C.Beck, D.Curien, P.Papka Particle-γ coincidences and coplanarity in the 32S + 24Mg binary reaction NUCLEAR REACTIONS 24Mg(32S, X), E=165.4 MeV; measured Eγ, Iγ, γγ-, (residue)γ-coin, reaction product yields; deduced reaction mechanism features and deformation. Doppler shift correction. Berlin binary reaction spectrometer and the Euroball IV array.
doi: 10.1016/j.nuclphysa.2008.08.006
2007BR25 Nucl.Phys. A788, 224c (2007) M.Brekiesz, A.Maj, M.Kmiecik, K.Mazurek, W.Meczynski, J.Styczen, K.Zuber, P.Papka, C.Beck, F.Haas, V.Rauch, M.Rousseau, A.Sanchez i Zafra, J.Dudek, N.Schunck Deformation Effects in Hot Rotating 46Ti Probed by the Charged Particle Emission and GDR γ-Decay NUCLEAR REACTIONS 19F(27Al, X), E=144 MeV; measured Eγ, Iγ, Eα, Iα, (residue)α-coin. 46Ti deduced giant dipole resonance strength distributions.
doi: 10.1016/j.nuclphysa.2007.01.061
2007BR30 Phys.Rev. C 76, 054605 (2007) T.A.D.Brown, P.Papka, B.R.Fulton, D.L.Watson, S.P.Fox, D.Groombridge, M.Freer, N.M.Clarke, N.I.Ashwood, N.Curtis, V.Ziman, P.McEwan, S.Ahmed, W.N.Catford, D.Mahboub, C.N.Timis, T.D.Baldwin, D.C.Weisser Decay studies for states in 9Be up to 11 MeV: Insights into the n+8Be and α+5He cluster structure NUCLEAR REACTIONS 9Be(6Li, 6Li), E=60 MeV; measured charged particle spectra, branching ratios, αα-correlations. 7Li, 9Be; deduced excitation energies.
doi: 10.1103/PhysRevC.76.054605
2007JE08 Phys.Rev. C 76, 044310 (2007) D.G.Jenkins, B.R.Fulton, P.Marley, S.P.Fox, R.Glover, R.Wadsworth, D.L.Watson, S.Courtin, F.Haas, D.Lebhertz, C.Beck, P.Papka, M.Rousseau, A.Sanchez i Zafra, D.A.Hutcheon, C.Davis, D.Ottewell, M.M.Pavan, J.Pearson, C.Ruiz, G.Ruprecht, J.Slater, M.Trinczek, J.D'Auria, C.J.Lister, P.Chowdhury, C.Andreoiu, J.J.Valiente-Dobon, S.Moon Decay strength distributions in 12C(12C, γ) radiative capture NUCLEAR REACTIONS 12C(12C, γ), E(cm)=6.0, 6.8, 7.5, 8.0 MeV; measured Eγ, Iγ, γγ, (recoil)γ-coin; deduced multipolarities, on and off resonances. TRIUMF-ISAC DRAGON recoil spectrometer, GEANT3 array.
doi: 10.1103/PhysRevC.76.044310
2007KM01 Acta Phys.Pol. B38, 1437 (2007) M.Kmiecik, A.Maj, M.Brekiesz, K.Mazurek, P.Bednarczyk, J.Grebosz, W.Meczynski, J.Styczen, M.Zieblinski, K.Zuber, P.Papka, C.Beck, D.Curien, F.Haas, V.Rauch, M.Rousseau, J.Dudek, N.Schunck, A.Bracco, F.Camera, G.Benzoni, O.Wieland, B.Herskind, E.Farnea, G.De Angelis Strong Deformation Effects in Hot Rotating 46Ti NUCLEAR REACTIONS 28Si(18O, F), E=105 MeV; measured Eγ, Ep, Eα, yields, angular distributions, and (particle)γ-coinc. 46Ti deduced deformation effects.
2007PA21 Phys.Rev. C 75, 045803 (2007) P.Papka, T.A.D.Brown, B.R.Fulton, D.L.Watson, S.P.Fox, D.Groombridge, M.Freer, N.M.Clarke, N.I.Ashwood, N.Curtis, V.Ziman, P.McEwan, S.Ahmed, W.N.Catford, D.Mahboub, C.N.Timis, T.D.Baldwin, D.C.Weisser Decay path measurements for the 2.429 MeV state in 9Be: Implications for the astrophysical α + α + n reaction NUCLEAR REACTIONS 9Be(6Li, 6Li'), E=60 MeV; measured Eα, Iα, αα-coin, angular correlations following break-up. 9Be deduced excited state partial decay widths, branching ratios. Astrophysical implications discussed.
doi: 10.1103/PhysRevC.75.045803
2005AU04 Int.J.Mod.Phys. E14, 239 (2005) L.Auditore, R.Barna, D.De Pasquale, A.Italiano, A.Trifiro, M.Trimarchi, V.Rauch, C.Beck, T.Bellot, C.Bhattacharya, D.Disdier, R.M.Freeman, F.Haas, R.Nouicer, P.Papka, M.Rousseau, A.Sanchez i Zafra, O.Stezowski, A.Strazzeri A semi-classical analysis of the proton sequential emission in 16O + 58Ni deep inelastic collisions NUCLEAR REACTIONS 58Ni(16O, pX), E=132 MeV; measured Ep, multiplicity, (fragment)p-coin; deduced non-equilibrium proton emission, related reaction mechanism features.
doi: 10.1142/S021830130500293X
2005BR17 Acta Phys.Pol. B36, 1175 (2005) M.Brekiesz, P.Papka, A.Maj, M.Kmiecik, C.Beck, P.Bednarczyk, J.Grebosz, F.Haas, W.Meczynski, V.Rauch, M.Rousseau, A.Sanchez i Zafra, J.Styczen, S.Thummerer, M.Zieblinski, K.Zuber Study of deformation effects in the charged particle emission from 46Ti NUCLEAR REACTIONS 19F(27Al, X), E=144 MeV; measured Eγ, Eα, (light charged particle)(evaporation residue)-coin; deduced compound nucleus deformation.
2005HA16 Nucl.Phys. A752, 514c (2005) J.W.Hammer, M.Fey, R.Kunz, J.Kiener, V.Tatischeff, F.Haas, J.L.Weil, M.Assuncao, C.Beck, C.Boukari-Pelissie, A.Coc, J.J.Correia, S.Courtin, F.Fleurot, E.Galanopoulos, C.Grama, F.Hammache, S.Harissopulos, A.Korichi, E.Krmpotic, D.Le Du, A.Lopez-Martens, D.Malcherek, R.Meunier, P.Papka, T.Paradellis, M.Rousseau, N.Rowley, G.Staudt, S.Szilner New determination of the 12C(α, γ)16O reaction rate from γ-ray angular distribution measurements NUCLEAR REACTIONS 12C(α, γ), E(cm)=0.89-2.8 MeV; measured σ(θ), S-factors; deduced astrophysical reaction rate.
doi: 10.1016/j.nuclphysa.2005.02.056
2005HA48 Nucl.Phys. A758, 363c (2005) J.W.Hammer, M.Fey, R.Kunz, J.Kiener, V.Tatischeff, F.Haas, J.L.Weil, M.Assuncao, C.Beck, C.Boukari-Pelissie, A.Coc, J.J.Correia, S.Courtin, F.Fleurot, E.Galanopoulos, C.Grama, F.Hammache, S.Harissopulos, A.Korichi, E.Krmpotic, D.Le Du, A.Lopez-Martens, D.Malcherek, R.Meunier, P.Papka, T.Paradellis, M.Rousseau, N.Rowley, G.Staudt, S.Szilner E1 and E2 capture cross section and astrophysical reaction rate of the key reaction 12C(α, γ)16O NUCLEAR REACTIONS 12C(α, γ), E(cm)=0.89-2.8 MeV; measured Eγ, Iγ, angular distributions; deduced S-factors for E1 and E2 capture. Eurogam and Gandi arrays, astrophysical implications discussed.
doi: 10.1016/j.nuclphysa.2005.05.066
2005KE08 J.Phys.(London) G31, S1903 (2005) K.L.Keyes, A.Papenberg, R.Chapman, J.Ollier, X.Liang, M.J.Burns, M.Labiche, K.M.Spohr, N.Amzal, C.Beck, P.Bednarczyk, F.Haas, G.Duchene, P.Papka, B.Gebauer, T.Kokalova, S.Thummerer, W.von Oertzen, C.Wheldon Spectroscopy of Ne, Na and Mg isotopes approaching the Island of Inversion NUCLEAR REACTIONS 150Nd(26Ne, X)22Ne/23Na/28Mg, E=160 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin. 22Ne, 23Na, 28Mg deduced levels, J, π. Euroball IV array, fragment separator.
doi: 10.1088/0954-3899/31/10/098
2005KE11 Eur.Phys.J. A 25, Supplement 1, 431 (2005) K.L.Keyes, A.Papenberg, R.Chapman, J.Ollier, X.Liang, M.J.Burns, M.Labiche, K.-M.Spohr, N.Amzal, C.Beck, P.Bednarczyk, F.Haas, G.Duchene, P.Papka, B.Gebauer, T.Kokalova, S.Thummerer, W.von Oertzen, C.Wheldon Spectroscopy of Ne and Na isotopes: Preliminary results from a EUROBALL + Binary Reaction Spectrometer experiment NUCLEAR REACTIONS 150Nd(26Mg, X), E=160 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin. 22Ne, 23Na deduced levels, J, π. Euroball IV array, binary reaction spectrometer.
doi: 10.1140/epjad/i2005-06-155-4
2005KO01 Eur.Phys.J. A 23, 19 (2005) Tz.Kokalova, W.von Oertzen, S.Torilov, S.Thummerer, M.Milin, A.Tumino, G.de Angelis, E.Farnea, A.Gadea, D.R.Napoli, Th.Kroll, N.Marginean, T.Martinez, M.Axiotis, S.M.Lenzi, C.Ur, P.Papka, M.Rousseau Emission of unbound 8Be and 12C* (0+2) clusters in compound nucleus reactions NUCLEAR REACTIONS 13C(18O, 8Be), (18O, 2α), E=100 MeV; 24Mg(28Si, 12C), (28Si, 3α), E=130 MeV; measured particle spectra, Eγ, Iγ, (particle)γ-coin; deduced cluster emission features. GASP, ISIS arrays.
doi: 10.1140/epja/i2004-10071-3
2004BE18 Nucl.Phys. A734, 453 (2004) C.Beck, A.Sanchez i Zafra, F.Haas, P.Papka, V.Rauch, M.Rousseau, F.Azaiez, P.Bednarczyk, D.Curien, O.Dorvaux, A.Nourreddine, J.Robin, W.von Oertzen, B.Gebauer, Ts.Kokalova, S.Thummerer, G.De Angelis, A.Gadea, S.Lenzi, D.R.Napoli, S.Szilner, W.N.Catford, D.Jenkins Search for 12C + 12C molecule in 24Mg* populated by 24Mg + 12C NUCLEAR REACTIONS 12C(24Mg, 12C), E=130 MeV; measured Eγ, Iγ, (particle)γ-coin. 24Mg deduced transitions. Euroball IV array, binary reaction spectrometer.
doi: 10.1016/j.nuclphysa.2004.01.084
2004MA26 Phys.Rev. C 69, 034616 (2004) D.Mahboub, C.Beck, B.Djerroud, R.M.Freeman, F.Haas, R.Nouicer, M.Rousseau, P.Papka, A.Sanchez i Zafra, Sl.Cavallaro, E.De Filippo, G.Lanzano, A.Pagano, M.Sperduto, E.Berthoumieux, R.Dayras, R.Legrain, E.Pollacco, A.Hachem Light particle emission in 35Cl + 24Mg fusion reactions at high excitation energy and angular momentum NUCLEAR REACTIONS 24Mg(35Cl, xnypzα), E=260 MeV; measured En, Ep, Eα, in-plane and out-of-plane angular correlations, (residue)(particle)-coin. 59Cu deduced deformation and angular momentum effects in compound nucleus decay.
doi: 10.1103/PhysRevC.69.034616
2004RO09 Int.J.Mod.Phys. E13, 47 (2004) B.Rosse, O.Stezowski, M.Meyer, A.Prevost, N.Redon, J.Styczen, M.Brekiesz, J.Grebosz, A.Maj, W.Meczynski, T.Pawlat, M.Zieblinski, K.Zuber, P.Bednarczyk, D.Curien, O.Dorvaux, B.Gall, P.Papka, J.Robin, J.P.Vivien, A.Astier, I.Deloncle, M.-G.Porquet, K.Keyes, A.Papenberg, K.M.Spohr, H.Hubel, A.Bracco, F.Camera, J.Bastin, M.Gorska Structure of polonium isotopes at high spin with RFD + Euroball IV NUCLEAR REACTIONS 176Yb(30Si, 5n), (30Si, 6n), E=160 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. Euroball IV array, recoil filter detector.
doi: 10.1142/S0218301304001710
2004TO07 Eur.Phys.J. A 19, 307 (2004) S.Torilov, S.Thummerer, W.von Oertzen, Tz.Kokalova, G.de Angelis, H.G.Bohlen, A.Tumino, M.Axiotis, E.Farnea, N.Marginean, T.Martinez, D.R.Napoli, M.De Poli, S.M.Lenzi, C.Ur, M.Rousseau, P.Papka Spectroscopy of 40Ca and negative-parity bands NUCLEAR REACTIONS 24Mg(28Si, 3α), E=139 MeV; measured Eγ, Iγ, γγ-, αγ-coin. 40Ca deduced levels, J, π, rotational bands, configurations. GASP, ISIS arrays. Level systematics in neighboring nuclides discussed.
doi: 10.1140/epja/i2003-10126-y
2003BE34 Phys.Rev. C 67, 054602 (2003) C.Beck, F.A.Souza, N.Rowley, S.J.Sanders, N.Aissaoui, E.E.Alonso, P.Bednarczyk, N.Carlin, S.Courtin, A.Diaz-Torres, A.Dummer, F.Haas, A.Hachem, K.Hagino, F.Hoellinger, R.V.F.Janssens, N.Kintz, R.Liguori Neto, E.Martin, M.M.Moura, M.G.Munhoz, P.Papka, M.Rousseau, A.Sanchez i Zafra, O.Stezowski, A.A.Suaide, E.M.Szanto, A.Szanto de Toledo, S.Szilner, J.Takahashi Near-barrier fusion of weakly bound 6Li and 7Li nuclei with 59Co NUCLEAR REACTIONS 59Co(6Li, xnypzα), (7Li, xnypzα), E(cm) ≈ 10-25 MeV; measured fusion, evaporation residue σ; deduced reaction mechanism features.
doi: 10.1103/PhysRevC.67.054602
2003BE75 Acta Phys.Hung.N.S. 18, 297 (2003) C.Beck, M.Rousseau, P.Papka, A.Sanchez i Zafra, C.Bhattacharya, V.Rauch, P.Bednarczyk, S.Courtin, O.Dorvaux, F.Haas, A.Nourreddine, I.Piqueras, J.Robin, L.El Bakali, C.Enaux, E.Galmar, S.Szilner, O.Stezowski, A.Prevost, S.Thummerer, W.von Oertzen, A.Hachem, E.Martin, A.Fahli, A.Morsad, A.Szanto de Toledo, S.J.Sanders Search for Cluster Emission and Extremely Deformed Shapes Using Charged-Particle Spectroscopy NUCLEAR REACTIONS 12C, 28Si(28Si, X), E=180 MeV; 12C(27Al, X), E=150 MeV; 12C(31P, X), E=112 MeV; 12C(32S, X), E=140 MeV; measured Eα, Ep, angular correlations between light charged particles and evaporation residues; deduced highly deformed configurations, cluster emission features. Other reactions discussed.
doi: 10.1556/APH.18.2003.2-4.30
2003FE04 Nucl.Phys. A718, 131c (2003) M.Fey, R.Kunz, J.W.Hammer, M.Jaeger, A.Mayer, E.Krmpotic, C.Bauer, C.Meyer, S.Harissopulos, T.Paradellis, G.Staudt, F.Haas, P.Papka, K.-L.Kratz, B.Pfeiffer The Key Reactions in Stellar Helium Burning: 12C(α, γ)16O and 22Ne(α, n)25Mg NUCLEAR REACTIONS 12C(α, γ), E ≈ 1-2.8 MeV; measured Eγ, Iγ(θ); deduced S-factor components. 22Ne(α, n), E=0.57-1.47 MeV; measured excitation function.
doi: 10.1016/S0375-9474(03)00690-0
2003PA56 Acta Phys.Pol. B34, 2343 (2003) P.Papka, C.Beck, F.Haas, V.Rauch, M.Rousseau, P.Bednarczyk, S.Courtin, O.Dorvaux, K.Eddahbi, J.Robin, A.Sanchez I Zafra Cluster emission and extremely deformed shapes in the N = Z nucleus 44Ti NUCLEAR REACTIONS 28Si(16O, pX), (16O, αX), E=76, 96, 112 MeV; measured Ep, Eα, σ(θ). Comparison with statistical model predictions.
2002BA97 Phys.Rev. C 66, 054607 (2002) R.Barna, D.De Pasquale, A.Italiano, A.Trifiro, M.Trimarchi, V.Rauch, C.Beck, T.Bellot, C.Bhattacharya, D.Disdier, R.M.Freeman, F.Haas, R.Nouicer, P.Papka, M.Rousseau, O.Stezowski, A.Strazzeri Comparison between α and proton sequential emission in 16O(132 MeV)+58Ni deep inelastic collisions NUCLEAR REACTIONS 58Ni(16O, X), E=132 MeV; measured Eα, Ep, projectile-like fragments spectra, angular correlations; deduced reaction mechanism features.
doi: 10.1103/PhysRevC.66.054607
2002BH01 Phys.Rev. C65, 014611 (2002) C.Bhattacharya, M.Rousseau, C.Beck, V.Rauch, R.M.Freeman, D.Mahboub, R.Nouicer, P.Papka, O.Stezowski, A.Hachem, E.Martin, A.K.Dummer, S.J.Sanders, A.Szanto De Toledo Deformation Effects in 56Ni Nuclei Produced in 28Si + 28Si at 112 MeV NUCLEAR REACTIONS 28Si(28Si, X), E=112 MeV; measured Eα, Ep, light charged particles σ(θ), angular correlations; deduced deformation effects. 30Si(30Si, X), E=120 MeV; analyzed Eα, related data. Statistical model analysis.
doi: 10.1103/PhysRevC.65.014611
2002RO35 Phys.Rev. C66, 034612 (2002) M.Rousseau, C.Beck, C.Bhattacharya, V.Rauch, O.Dorvaux, K.Eddahbi, C.Enaux, R.M.Freeman, F.Haas, D.Mahboub, R.Nouicer, P.Papka, O.Stezowski, S.Szilner, A.Hachem, E.Martin, S.J.Sanders, A.K.Dummer, A.Szanto de Toledo Highly Deformed 40Ca Configurations in 28Si + 12C NUCLEAR REACTIONS 12C(28Si, X), E=112, 180 MeV; measured Ep, Eα, σ(θ), energy and angular correlations between light and heavy fragments. 40Ca deduced highly deformed configurations. Statistical model analysis.
doi: 10.1103/PhysRevC.66.034612
2001BH07 Pramana 57, 203 (2001) C.Bhattacharya, M.Rousseau, C.Beck, V.Rauch, R.M.Freeman, R.Nouicer, F.Haas, O.Dorvaux, K.Eddahbi, P.Papka, O.Stezowski, S.Szilner, D.Mahboub, A.Szanto de Toledo, A.Hachem, E.Martin, S.J.Sanders Deformation Effects in the 28Si + 12C and 28Si + 28Si Reactions NUCLEAR REACTIONS 12C, 28Si(28Si, X), E=112, 180 MeV; measured Eα, light charged particle and heavy fragment spectra; deduced di-nuclear system features, deformation effects. Statistical model calculations. Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6120. Back to query form |