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NSR database version of April 26, 2024.

Search: Author = M.V.Chisapi

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2022IN01      Phys.Rev. C 106, 054315 (2022)

V.W.Ingeberg, P.Jones, L.Msebi, S.Siem, M.Wiedeking, A.A.Avaa, M.V.Chisapi, E.A.Lawrie, K.L.Malatji, L.Makhathini, S.P.Noncolela, O.Shirinda

Nuclear level density and γ-ray strength function of ⁶³Ni

NUCLEAR REACTIONS ⁶⁴Ni(p, d), E=27.4 MeV; measured deuteron spectrum, Eγ, Iγ, (deuteron)γ-coin, angular distributions. ⁶³Ni; deduced nuclear level density (NLD) and γ-strength function. Oslo method type of analysis. Comparison with experimental results of other Ni isotopes and large-scale shell model calculations for ⁶³Ni. S2 silicon ΔE-E telescopes for charged particles and AFRODITE γ-detector array (8 HPGe CLOVER+2 LaBr₃:Ce(3.5x8")+6 LaBr₃:Ce(2x2")) at Separated Sector Cyclotron (iThemba LABS).

doi: 10.1103/PhysRevC.106.054315
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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
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022MD01      Phys.Rev. C 106, 044325 (2022)

L.Mdletshe, X.Q.Yang, E.A.Lawrie, M.A.Sithole, S.N.T.Majola, S.S.Ntshangase, J.F.Sharpey-Schafer, J.J.Lawrie, S.H.Mthembu, T.D.Bucher, L.Msebi, R.A.Bark, A.A.Avaa, M.V.Chisapi, P.Jones, S.Jongile, Z.P.Li, L.Makhathini, K.L.Malatji, A.A.Netshiya, Z.Shi, B.Y.Song, L.Wang, J.Xiang, S.Q.Zhang

Collective rotational bands at low excitation energy in ¹⁸⁶Os: Vibrational and rotational degrees of freedom

NUCLEAR REACTIONS ¹⁸⁶W(α, 4n), E=48 MeV; measured Eγ, Iγ, γγ-coin. ¹⁸⁶Os; deduced levels, J, π, linear polarization asymmetries, angular distribution ratios, high-spin states, bands structure, staggering parameter; calculated levels, J, π, bands structure, potential energy surfaces, staggering parameter. Five-dimensional collective Hamiltonian based on the covariant density functional theory (5DCH-CDFT) and triaxial rotor model (TRM) calculations. Systematics of the bands alignments for ^{182,184,186,188,190,192}Os isotopes. AFRODITE γ-ray spectrometer consisting of 11 clover HPGe detectors at iThemba LABS Separated-Sector Cyclotron.

doi: 10.1103/PhysRevC.106.044325
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022MS01      Nucl.Instrum.Methods Phys.Res. A1026, 166195 (2022)

L.Msebi, V.W.Ingeberg, P.Jones, J.F.Sharpey-Schafer, A.A.Avaa, T.D.Bucher, C.P.Brits, M.V.Chisapi, D.J.C.Kenfack, E.A.Lawrie, K.L.Malatji, B.Maqabuka, L.Makhathini, S.P.Noncolela, J.Ndayishimye, A.Netshiya, O.Shrinda, M.Wiedeking, B.R.Zikhali

A fast-timing array of 2" x 2" LaBr₃:Ce detectors for lifetime measurements of excited nuclear

RADIOACTIVITY ⁶⁰Co(β^-), ¹⁵²Eu(EC), (β^-), ⁶⁷Ga, ¹³³Ba(EC); measured decay products, Eγ, Iγ; deduced γ-ray energies, level T_1/2.

NUCLEAR REACTIONS ⁴⁵Sc(p, α), (p, d), ⁶⁴Ni(p, p'), E=27 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, level, J, π, T_1/2.

doi: 10.1016/j.nima.2021.166195
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Data from this article have been entered in the XUNDL database. For more information, click here.

2021DI09      Phys.Rev. C 104, 064304 (2021)

B.Ding, C.M.Petrache, S.Guo, E.A.Lawrie, I.Wakudyanaye, Z.H.Zhang, H.L.Wang, H.Y.Meng, D.Mengoni, Y.H.Qiang, J.G.Wang, C.Andreoiu, A.Astier, A.Avaa, T.Back, R.A.Bark, D.Bazzacco, A.Boso, T.D.Bucher, B.Cederwall, M.V.Chisapi, H.L.Fan, F.Galtarossa, F.H.Garcia, A.Goasduff, G.Jaworski, P.Jones, I.Kuti, J.J.Lawrie, G.S.Li, R.Li, M.L.Liu, Z.Liu, B.Lomberg, B.F.Lv, T.Marchlewski, L.Mdletshe, L.Msebi, S.H.Mthembu, D.R.Napoli, A.Netshiya, M.F.Nkalanga, J.N.Orce, K.Ortner, F.Recchia, S.Riccetto, A.Rohilla, T.W.Seakamela, M.Siciliano, M.A.Sithole, D.Sohler, J.Srebrny, D.Testov, A.Tucholski, J.J.Valiente-Dobon, F.Wentzel, K.Whitmore, Y.H.Zhang, K.K.Zheng, X.H.Zhou, B.R.Zikhali

Signature splitting of the g_7/2 [404] 7/2⁺ bands in ¹³¹Ba and ¹³³Ce

NUCLEAR REACTIONS ¹²²Sn(¹³C, 4nγ)¹³¹Ba, E=65 MeV from XTU Tandem accelerator at LNL-Legnaro; ¹²⁵Te(¹²C, 4nγ)¹³³Ce, E=57 MeV from separated sector cyclotron of iThemba LABS; measured Eγ, Iγ, γγ-coin, γγ(θ) using GALILEO array of 25 Compton-suppressed HPGe detectors, EUCLIDES silicon ball for charged particles and the Neutron Wall array for neutrons for ¹³¹Ba at Legnaro, and AFRODITE array of eight Compton-suppressed clover detectors for ¹³³Ce at iThemba LABS. ¹³¹Ba, ¹³³Ce; deduced high-spin levels, multipolarities, J, π, bands, quasiparticle alignments, dynamical moments of inertia, signature splittings and configurations. Comparison with cranked shell model and quasiparticle-plus-triaxial-rotor model calculations.

doi: 10.1103/PhysRevC.104.064304
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Data from this article have been entered in the XUNDL database. For more information, click here.

2021SI05      Phys.Rev. C 103, 024325 (2021)

M.A.Sithole, J.F.Sharpey-Schafer, E.A.Lawrie, S.N.T.Majola, A.Kardan, T.D.Bucher, J.J.Lawrie, L.Mdletshe, S.S.Ntshangase, A.A.Netshiya, P.Jones, L.Makhathini, K.L.Malatji, P.L.Masiteng, I.Ragnarsson, B.Maqabuka, J.Ndayishimye, O.Shirinda, B.R.Zikhali, S.Jongile, G.O'Neill, L.Msebi, P.M.Someketa, D.Kenfack, S.H.Mthembu, T.C.Khumalo, M.V.Chisapi

Low- and medium-spin negative-parity bands in the ¹⁸⁷Os nucleus

NUCLEAR REACTIONS ¹⁸⁶W(α, 3n)¹⁸⁷Os, E=37 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO), γγ(linear polarization) using AFRODITE array of 11 Compton-suppressed HPGe clover detectors at the K=200 cyclotron facility of iThemba Labs. ¹⁸⁷Os; deduced high-spin levels, J, π, multipolarities, bands, alignment plots, experimental Routhians, Nilsson configurations; calculated total energy surfaces contours in (ϵ₂cos(γ+30°), ϵ₂sin(γ+30°)) plane using the cranked Nilsson-Strutinsky-Bogoliubov (CNSB) models. Bands interpreted within the cranked shell model (CSM) and CNSB formalism.

doi: 10.1103/PhysRevC.103.024325
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Data from this article have been entered in the XUNDL database. For more information, click here.

2021SI30      Phys.Rev. C 104, 044326 (2021)

M.A.Sithole, E.A.Lawrie, L.Mdletshe, S.N.T.Majola, A.Kardan, T.D.Bucher, J.F.Sharpey-Schafer, J.J.Lawrie, S.S.Ntshangase, A.A.Avaa, R.A.Bark, M.V.Chisapi, P.Jones, S.Jongile, D.Kenfack, T.C.Khumalo, L.Makhathini, K.L.Malatji, B.Maqabuka, S.H.Mthembu, L.Msebi, A.A.Netshiya, G.O'Neill, O.Shirinda, P.M.Someketa, B.R.Zikhali

Structure of collective states built on the 11/2⁺ isomer in ¹⁸⁷Os: Quasiparticle-plus-triaxial-rotor model and interpretation as tilted-precession bands

NUCLEAR REACTIONS ¹⁸⁶W(α, 3n)¹⁸⁷Os, E=37.0 MeV; measured Eγ, Iγ, γγ-coin, γγ(angular anisotropy), γγ(linear polarization) using AFRODITE array for γ detection at k=200 Separated Sector Cyclotron of iThemba LABS. ¹⁸⁷Os; deduced high-spin levels, J, π, multipolarities, rotational bands, tilted precession (TiP) bands, Nilsson configurations, alignment and Routhian plots, three-dimensional triaxially-deformed nucleus. Comparison with quasiparticle-plus-triaxial-rotor model calculations. Systematics of band structures of ^183,185,187Os and those of positive-parity bands in ^{182,184,186,188,190,192}Os.

doi: 10.1103/PhysRevC.104.044326
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2020AV02      Nucl.Instrum.Methods Phys.Res. A964, 163809 (2020)

A.A.Avaa, P.Jones, I.T.Usman, M.V.Chisapi, T.Kibedi, B.R.Zikhali, L.Msebi

Electron spectrometer for electric monopole (E0) transition studies in nuclei

NUCLEAR REACTIONS ⁷⁰Ge(α, X)⁷²As/⁷²Se/⁷²Ge, E=30 MeV; measured reaction products, Eγ, Iγ, E(ce), I(ce); deduced internal conversion coefficients, partial level schemes, J, π, multipolarities, E0/E2 branching ratios, monopole strengths of the electromagnetic transitions. Comparison with availabledata.

doi: 10.1016/j.nima.2020.163809
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Data from this article have been entered in the XUNDL database. For more information, click here.

2020DO10      Phys.Lett. B 811, 135855 (2020)

J.T.H.Dowie, T.Kibedi, D.G.Jenkins, A.E.Stuchbery, A.Akber, H.A.Alshammari, N.Aoi, A.Avaa, L.J.Bignell, M.V.Chisapi, B.J.Coombes, T.K.Eriksen, M.S.M.Gerathy, T.J.Gray, T.H.Hoang, E.Ideguchi, P.Jones, M.Kumar Raju, G.J.Lane, B.P.McCormick, L.J.McKie, A.J.Mitchell, N.J.Spinks, B.P.E.Tee

Evidence for shape coexistence and superdeformation in ²⁴Mg

NUCLEAR REACTIONS ²⁴Mg(p, p'), E=8 MeV; measured reaction products, Eγ, Iγ, Eβ, Iβ; deduced level energies, J, π, level lifetimes, E0 strength. Comparison with shell model calculations using NuShellX and the USDA interaction in the sd model space.

doi: 10.1016/j.physletb.2020.135855
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Data from this article have been entered in the XUNDL database. For more information, click here.