NSR Query Results


Output year order : Descending
Format : Normal

NSR database version of May 24, 2024.

Search: Author = J.J.van Zyl

Found 21 matches.

Back to query form



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
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


2024BA09      Nuovo Cim. C 47, 17 (2024)

A.Bahini, R.Neveling, P.von Neumann-Cosel, I.T.Usman, J.Carter, 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

Study of the isoscalar giant monopole resonance: Discrepancies between available experimental results

NUCLEAR REACTIONS 24Mg, 208Pb(α, α'), E=196, 240, 386 MeV; measured reaction products, Eα, Iα; deduced isoscalar giant monopole (IS0) strength distributions. Comparison with available data. The Separated Sector Cyclotron (SSC) facility, iThemba LABS.

doi: 10.1393/ncc/i2024-24017-0
Citations: PlumX Metrics


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
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


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
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD1019. Data from this article have been entered in the XUNDL database. For more information, click here.


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


2021CO09      Phys.Rev. C 104, 014608 (2021)

A.A.Cowley, J.J.Van Zyl

Contribution to inclusive (p, α) reactions from (p, pα) knockout at incident energies near 100 MeV

NUCLEAR REACTIONS 58Ni(p, pα)54Fe, 58Ni, 59Co(p, α), E=100 MeV; 40Ca(p, pα)36Ar, E=101.3 MeV; analyzed experimental σ(θ) distributions in knockout reactions using distorted-wave impulse approximation (DWIA). Comparison with intranuclear cascade (INC) theory calculations.

doi: 10.1103/PhysRevC.104.014608
Citations: PlumX Metrics


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
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0836. Data from this article have been entered in the XUNDL database. For more information, click here.


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
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0903. Data from this article have been entered in the XUNDL database. For more information, click here.


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
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


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
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


2016CO04      Phys.Rev. C 93, 034624 (2016)

A.A.Cowley, S.S.Dimitrova, E.V.Zemlyanaya, K.V.Lukyanov, J.J.van Zyl

Inclusive (p(pol), α) reaction on 59Co at an incident energy of 100 MeV and comparison with the reaction mechanism for 93Nb between 65 and 160 MeV

NUCLEAR REACTIONS 59Co(polarized p, α), E=100 MeV; measured Eα, Iα, σ(θ), analyzing powers Ay(θ) at iThemba LABS in Faure. 93Nb(polarized p, α), E=100 MeV; analyzed double-differential cross section and Ay(θ) data. Pickup and knockout processes. DWBA calculations. Comparison with calculations based on statistical multistep pre-equilibrium theory.

doi: 10.1103/PhysRevC.93.034624
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0807.


2015VA04      Phys.Rev. C 91, 024614 (2015)

J.J.van Zyl, A.A.Cowley, R.Neveling, E.Z.Buthelezi, S.V.Fortsch, J.Mabiala, J.P.Mira, F.Nemulodi, F.D.Smit, G.F.Steyn, J.A.Swartz, I.T.Usman

Incident-energy dependence of angular distributions of cross section and analyzing power for the 58Ni (p(pol) 3He) reaction between 80 and 120 MeV

NUCLEAR REACTIONS 58Ni(polarized p, 3He)56Co, E=80, 100, 118 MeV; measured 3He spectra, σ(θ), analyzing powers at cyclotron facility of iThemba LABS. 56Co; deduced levels, l-transfers, J, π, spectroscopic factors. Optical model, and macroscopic zero-range distorted-wave Born approximation (DWBA) analyses. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.91.024614
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0766. Data from this article have been entered in the XUNDL database. For more information, click here.


2014DI02      Phys.Rev. C 89, 034616 (2014)

S.S.Dimitrova, A.A.Cowley, J.J.van Zyl, E.V.Zemlyanaya, K.V.Lukyanov

Inclusive reaction 93Nb(p(pol), α) at an incident energy of 160 MeV

NUCLEAR REACTIONS 93Nb(polarized p, α), E=160 MeV; measured Eα, Iα, double-differential σ(θ), analyzing power Ay(θ), at iThemba Laboratory. Comparison of angular distribution and analyzing power data with DWBA predictions, and with statistical multistep method calculations.

doi: 10.1103/PhysRevC.89.034616
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0735.


2012CO12      Phys.Rev. C 85, 054622 (2012)

A.A.Cowley, J.J.van Zyl, S.S.Dimitrova, E.V.Zemlyanaya, K.V.Lukyanov

Mechanism of the 93Nb(p, 3He) inclusive reaction at an incident energy of 160 MeV

NUCLEAR REACTIONS 93Nb(polarized p, 3He), E=160 MeV; measured 3He spectra, double differential σ(θ), vector analyzing power (VAP) as function of scattering angle, emission energy distribution of VAP. Comparison with a multistep direct theory in which a reaction mechanism based on two-nucleon pickup combined with Distorted Wave Born approximation (DWBA).

doi: 10.1103/PhysRevC.85.054622
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0688.


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
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


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
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0706.


2009CO01      Europhys.Lett. 85, 22001 (2009)

A.A.Cowley, J.Mabiala, E.Z.Buthelezi, S.V.Fortsch, R.Neveling, F.D.Smit, G.F.Steyn, J.J.van Zyl

Analyzing power distribution in the 12C(p, pα)8Be(g.s.) reaction at an incident energy of 100 MeV

NUCLEAR REACTIONS 12C(p, pα), E=101 MeV; measured cross section and analyzing power.

doi: 10.1209/0295-5075/85/22001
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1724.


2009MA21      Phys.Rev. C 79, 054612 (2009)

J.Mabiala, A.A.Cowley, S.V.Fortsch, E.Z.Buthelezi, R.Neveling, F.D.Smit, G.F.Steyn, J.J.Van Zyl

Analyzing power and cross section distributions of the 12C(p, pα)8Be cluster knockout reaction at an incident energy of 100 MeV

NUCLEAR REACTIONS 12C(polarized p, pα)8Be, E=100 MeV; measured particle spectra, (particle)(particle)-coin, σ, σ(θ), vector analyzing powers; deduced energy sharing cross sections with different optical potential model parameters and spectroscopic factors. Distorted-wave impulse approximation (DWIA) analysis.

doi: 10.1103/PhysRevC.79.054612
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1704.


2007CO14      Phys.Rev. C 75, 054617 (2007)

A.A.Cowley, J.Bezuidenhout, S.S.Dimitrova, P.E.Hodgson, S.V.Fortsch, G.C.Hillhouse, N.M.Jacobs, R.Neveling, F.D.Smit, J.A.Stander, G.F.Steyn, J.J.van Zyl

Multistep direct mechanism in the (p(pol), 3He) inclusive reaction on 59Co and 93Nb at incident energies between 100 and 160 MeV

NUCLEAR REACTIONS 59Co, 93Nb(polarized p, 3He), E=40-160 MeV; measured σ, angular distributions and analyzing powers. Compared results to model calculations.

doi: 10.1103/PhysRevC.75.054617
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0443.


2005AU05      Phys.Rev. C 71, 064606 (2005)

A.Auce, A.Ingemarsson, R.Johansson, M.Lantz, G.Tibell, R.F.Carlson, M.J.Shachno, A.A.Cowley, G.C.Hillhouse, N.M.Jacobs, J.A.Stander, J.J.van Zyl, S.V.Fortsch, J.J.Lawrie, F.D.Smit, G.F.Steyn

Reaction cross sections for protons on 12C, 40Ca, 90Zr, and 208Pb at energies between 80 and 180 MeV

NUCLEAR REACTIONS 12C, 40Ca, 90Zr, 208Pb(p, X), E=80-180 MeV; 58Ni(p, X), E=81 MeV; measured reaction σ. Comparison with model predictions.

doi: 10.1103/PhysRevC.71.064606
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0356.


Back to query form