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NSR database version of May 24, 2024.

Search: Author = H.Naidja

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2024JU01      Phys.Lett. B 851, 138561 (2024)

A.Jungclaus, P.Doornenbal, J.Acosta, V.Vaquero, F.Browne, M.L.Cortes, A.Gargano, T.Koiwai, H.Naidja, R.Taniuchi, J.A.Tostevin, K.Wimmer, A.Algora, H.Baba, A.Fernandez, N.Lalovic, E.Nacher, B.Rubio, H.Sakurai

Position of the single-particle 3/2- state in 135Sn and the N=90 subshell closure

NUCLEAR REACTIONS 9Be(136Sn, n)135Sn, E=200 MeV/nucleon; 9Be(137Sb, np)135Sn, E=202 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, partial level scheme, level T1/2 limit, B(E2), the evolution of the neutron shell structure beyond N=82. Comparison with he predictions of shell-model calculations performed using microscopic interactions derived from the CD-Bonn and N3LO NN potentials. The Radioactive Isotope Beam Factory (RIBF) operated by the RIKEN Nishina Center for Accelerator-Based Science and the Center for Nuclear Study of the University of Tokyo.

doi: 10.1016/j.physletb.2024.138561
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2022KA52      Phys.Rev. C 106, 064305 (2022)

V.Karayonchev, G.Rainovski, J.Jolie, A.Blazhev, A.Dewald, A.Esmaylzadeh, C.Fransen, P.John, L.Knafla, D.Kocheva, K.Schomacker, V.Werner, H.Naidja

Lifetime measurements in the yrast band of 212Po with a shell-model investigation

NUCLEAR REACTIONS 208Pb(18O, 14C)212Po, E=85 MeV; measured reaction products, Eγ, Iγ, γγ-coin, (particle)γ-coin. 212Po; deduced levels, J, π, B(E2), T1/2 of first 4+ and 6+ states; calculated levels, J, π, B(E2). Lifetimes obtained with recoil-distance Doppler-shift (RDDS) method. Shell-model calculations performed using H208 and KHPE interaction. Cologne plunger device, array of 11 HPGe detectors and array of 6 photovoltaic pin-diodes at FN-TANDEM accelerator (University of Cologne).

doi: 10.1103/PhysRevC.106.064305
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2022MO11      Phys.Rev. C 105, 034334 (2022)

B.Moon, A.Gargano, H.Naidja, C.-B.Moon, A.Odahara, R.Lozeva, S.Nishimura, C.Yuan, F.Browne, P.Doornenbal, G.Lorusso, Z.Patel, S.Rice, M.Si, L.Sinclair, P.-A.Soderstrom, T.Sumikama, H.Watanabe, J.Wu, Z.Y.Xu, A.Yagi, D.S.Ahn, H.Baba, F.L.Bello Garrote, R.Daido, J.M.Daugas, F.Didierjean, Y.Fang, N.Fukuda, B.Hong, E.Ideguchi, N.Inabe, T.Ishigaki, T.Isobe, H.S.Jung, D.Kameda, I.Kojouharov, T.Komatsubara, T.Kubo, Y.K.Kwon, C.S.Lee, P.Lee, S.Morimoto, D.Murai, M.Niikura, H.Nishibata, I.Nishizuka, H.Sakurai, Y.Shimizu, H.Suzuki, H.Takeda, K.Tshoo, R.Yokoyama

First observation of the π0h11/2 (X) ν0h9/2 partner orbital configuration in the odd-odd 138I nucleus

RADIOACTIVITY 138Te(β-)[from 9Be(238U, X), E=345 MeV/nucleon];measured Eβ, Iβ, Eγ, Iγ, βγ-coin, γγ-coin; deduced β-branching ratios, logft, B(GT). 138I; deduced levels, J, π, configurations, T1/2 of 68 keV transition (not yet exact placement in the level scheme). Comparison to otherexperimental data and large-scale shell-model calculations with N3LOP and Napoli effective interactions. Wide-range Active Silicon Strip Stopper Array for β and ion detection (WAS3ABi) system combined with EUROBALL-RIKEN Cluster Array (EURICA) at RIBF.

doi: 10.1103/PhysRevC.105.034334
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2022SI16      Phys.Rev. C 106, 014302 (2022)

M.Si, R.Lozeva, H.Naidja, A.Blanc, J.-M.Daugas, F.Didierjean, G.Duchene, U.Koster, T.Kurtukian-Nieto, F.Le Blanc, P.Mutti, M.Ramdhane, W.Urban

New β-decay spectroscopy of the 137Te nucleus

RADIOACTIVITY 137Te(β-), (β-n)[from 235U(n, F), E=thermal at the high flux reactor of Institut Laue-Langevin (ILL), followed by separation of fragments using LOHENGRIN separator]; measured Eγ, Iγ, γγ-coin, βγ-coin using two clover Ge detectors surrounded by BGO anti-Compton shields, and a coaxial HPGe detector for γ radiation, and plastic scintillators for β radiation. 137I; deduced levels, J, π, β feedings, logft, shell-model configurations and wave function amplitudes. 136I; deduced one level at 87.3 keV through the observation of g.s. transition. 137Te; measured T1/2 of its decay by time distribution of β-decay events; estimated lower limit of %β-n or Pn decay mode. Comparison of level structure of 137I with theoretical shell-model (SM) calculations.

doi: 10.1103/PhysRevC.106.014302
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2021FE09      Phys.Rev. C 104, 054316 (2021)

A.Fernandez, A.Jungclaus, P.Golubev, D.Rudolph, L.G.Sarmiento, A.Gargano, H.Naidja, A.Astier, E.Dupont, A.Gadea, E.Nacher, A.Perea, K.Wimmer, E.Clement, G.Fremont, J.Goupil, C.Houarner, B.Jacquot, A.Korichi, A.Lemasson, H.J.Li, J.Ljungvall, L.Menager, R.M.Perez-Vidal, C.M.Petrache, D.Ralet, J.A.Ropert, F.Saillant, A.Saamark-Roth, G.S.Simpson, C.Spitaels, M.Zielinska, S.Ansari, J.Dudouet, A.Illana, M.Jurado, D.Kocheva, N.Lalovic, Ch.Lorenz, B.Quintana, G.Rainovski, N.Redon, G.Tocabens, D.Barrientos, G.Benzoni, B.Birkenbach, A.J.Boston, H.C.Boston, A.Bracco, M.Ciemala, J.Collado, D.M.Cullen, C.Domingo-Pardo, J.Eberth, V.Gonzalez, L.J.Harkness-Brennan, H.Hess, D.S.Judson, W.Korten, S.Leoni, A.Maj, R.Menegazzo, D.Mengoni, C.Michelagnoli, B.Million, D.R.Napoli, J.Nyberg, Zs.Podolyak, A.Pullia, P.Reiter, E.Sanchis, O.Stezowski, Ch.Theisen, J.J.Valiente-Dobon

Reinterpretation of excited states in 212Po: Shell-model multiplets rather than α-cluster states

NUCLEAR REACTIONS 12C(208Pb, 212Po)8Be, E=1187 MeV; measured Eγ, Iγ, (particle)γ-coin, (particle)γγ-coin, γγ(linear polarization) using 35 36-fold segmented AGATA crystals arranged in 12 triple clusters for γ detection and double-sided silicon strip detector (DSSSD) for particle detection. 212Po; deduced levels, J, π, multipolarities, configurations, exclusive reaction cross sections. Comparisons with shell-model calculations, with structure of 148Gd, and with earlier experimental results. Discussed previous interpretation as α-cluster states.

NUCLEAR STRUCTURE 212Po; calculated levels, J, π, configurations, γ-ray branching ratios, B(M1), B(E2), wave-function decomposition for the yrast and yrare states using shell model with KHPE and H208 interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.104.054316
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2021HA13      Phys.Rev. C 103, 034317 (2021)

G.Hafner, R.Lozeva, H.Naidja, M.Lebois, N.Jovancevic, D.Thisse, D.Etasse, R.L.Canavan, M.Rudigier, J.N.Wilson, E.Adamska, P.Adsley, M.Babo, K.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.M.Collins, M.L.Cortes, P.J.Davies, C.Delafosse, M.Fallot, B.Fornal, L.M.Fraile, R.-B.Gerst, D.Gjestvang, V.Guadilla, K.Hauschild, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, S.Jazwari, J.Jolie, A.Korgul, P.Koseoglou, Th.Kroll, T.Kurtukian-Nieto, L.Le-meur, J.Ljungvall, A.Lopez-Martens, I.Matea, L.Matthieu, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa, Y.Popovitch, C.Porzio, L.Qi, D.Ralet, P.H.Regan, D.Reygadas Tello, K.Rezynkina, V.Sanchez, C.Schmitt, P.-A.Soderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, N.Warr, B.Wasilewska, J.Wiederhold, M.S.Yavahchova, F.Zeiser, S.Ziliani

Spectroscopy and lifetime measurements in 134, 136, 138Te isotopes and implications for the nuclear structure beyond N = 82

NUCLEAR REACTIONS 238U(n, F)134Te/136Te/138Te, E AP 1.7 MeV; measured Eγ, Iγ, γγ-coin, half-lives of first 2+, 4+ and 6+ states in 134,136,138Te and (12+) isomer in 134Te by γγ(t) fast timing technique using HPGe and LaBr3(Ce) detectors at the ALTO facility of IJCLab with the LICORNE neutron source and the hybrid ν-ball spectrometer. 134,136,138Te; deduced levels, J, π, B(E2), mixed symmetry state, configurations. Comparison with previous measurements, and with state-of-the-art shell-model calculations.

NUCLEAR STRUCTURE 134,136,138Te; calculated levels, J, π for 136,138Te, decomposition of the wave functions for several yrast states in all three nuclides. Large-scale shell-model calculations. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.034317
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2021HA28      Phys.Rev. C 104, 014316 (2021)

G.Hafner, R.Lozeva, H.Naidja, M.Lebois, N.Jovancevic, D.Thisse, D.Etasse, R.L.Canavan, M.Rudigier, J.N.Wilson, E.Adamska, P.Adsley, A.Algora, M.Babo, K.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.M.Collins, M.L.Cortes, P.J.Davies, C.Delafosse, M.Fallot, L.M.Fraile, R.-B.Gerst, D.Gjestvang, V.Guadilla, K.Hauschild, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, S.Jazwari, A.Korgul, P.Koseoglou, Th.Kroll, T.Kurtukian-Nieto, L.Le-meur, S.Leoni, J.Ljungvall, A.Lopez-Martens, L.Matthieu, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa-Silkowska, Y.Popovitch, C.Porzio, L.Qi, D.Ralet, P.H.Regan, D.Reygadas Tello, K.Rezynkina, V.Sanchez-Tembleque, C.Schmitt, P.-A.Soderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, N.Warr, B.Wasilewska, J.Wiederhold, M.S.Yavahchova, F.Zeiser, S.Ziliani

First lifetime investigations of N ≥ 82 iodine isotopes: The quest for collectivity

NUCLEAR REACTIONS 238U(n, F)135I/137I/139I, E ∼ 1.7 MeV from LICORNE neutron source at the ALTO facility of IJCLab; measured Eγ, Iγ, γγ-coin, level T1/2 by γγ(t) using ν-ball spectrometer of HPGe and LaBr3(Ce) detectors. 135,137,139I; deduced high-spin levels, J, π, B(E2), B(M1), B(E3), configurations; calculated occupations for the most prominent proton or neutron-proton configurations. Comparison with previous experimental data, and with large scale shell-model (LSSM) calculations using N3LOP (SM-I) and Kuo-Herling (SM-II) effective interactions. Systematics of B(E2) for yrast states of 134,136,138Te and 135,137,139I.

doi: 10.1103/PhysRevC.104.014316
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2021KA36      Phys.Rev. C 104, 024311 (2021)

D.Kalaydjieva, D.Kocheva, G.Rainovski, V.Karayonchev, J.Jolie, N.Pietralla, M.Beckers, A.Blazhev, A.Dewald, M.Djongolov, A.Esmaylzadeh, C.Fransen, K.A.Gladnishki, A.Goldkuhle, C.Henrich, I.Homm, K.E.Ide, P.R.John, R.Kern, J.Kleemann, Th.Kroll, C.Muller-Gatermann, M.Scheck, P.Spagnoletti, M.Stoyanova, K.Stoychev, V.Werner, A.Yaneva, S.S.Dimitrova, G.De Gregorio, H.Naidja, A.Gargano

Microscopic structure of the one-phonon 2+ states of 208Po

NUCLEAR REACTIONS 204Pb(12C, 8Be)208Po, E=62 MeV; measured Eγ, Iγ, (particle)γ-coin, half-lives of the first 2+ and 4+ levels by recoil-distance Doppler-shift (RDDS) method using the Cologne plunger device at the FN Tandem facility of the University of Cologne. 208Po; deduced levels, J, π, B(E2). Comparison with large-scale shell-model calculations.

NUCLEAR STRUCTURE 208Po; calculated levels, J, π, B(E2), B(M1), magnetic dipole and electric quadrupole moments using large-scale shell-model calculations with an effective interaction derived from the realistic CD-Bonn nucleon-nucleon potential. Comparison with experimental data.

doi: 10.1103/PhysRevC.104.024311
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2021MO10      Phys.Rev. C 103, 034320 (2021)

B.Moon, A.Jungclaus, H.Naidja, A.Gargano, R.Lozeva, C.-B.Moon, A.Odahara, G.S.Simpson, S.Nishimura, F.Browne, P.Doornenbal, G.Gey, J.Keatings, G.Lorusso, Z.Patel, S.Rice, M.Si, L.Sinclair, P.-A.Soderstrom, T.Sumikama, J.Taprogge, H.Watanabe, J.Wu, Z.Y.Xu, A.Yagi, D.S.Ahn, H.Baba, F.L.Bello Garrote, S.Bonig, R.Daido, J.M.Daugas, F.Didierjean, F.Drouet, Y.Fang, N.Fukuda, R.Gernhauser, B.Hong, E.Ideguchi, S.Ilieva, N.Inabe, T.Ishigaki, T.Isobe, H.S.Jung, D.Kameda, I.Kojouharov, T.Komatsubara, T.Kroll, T.Kubo, N.Kurz, Y.K.Kwon, C.S.Lee, P.Lee, Z.Li, A.Montaner-Piza, S.Morimoto, K.Moschner, D.Mucher, D.Murai, M.Niikura, H.Nishibata, I.Nishizuka, R.Orlandi, H.Sakurai, H.Schaffner, Y.Shimizu, K.Steiger, H.Suzuki, H.Takeda, K.Tshoo, Zs.Vajta, A.Wendt, R.Yokoyama, K.Yoshinaga

Nuclear structure of Te isotopes beyond neutron magic number N = 82

RADIOACTIVITY 137,138Sb(β-), (β-n), (β-2n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation of fragments using BigRIPS and Zero-Degree spectrometer at RIBF-RIKEN facility]; measured yields of 137Sb 138Sb, Eγ, Iγ, γγ-coin, half-lives of decays of ground states of 137Sb and 138Sb using WAS3ABi detection system and EURICA array for γ rays. 135,136,137,138Te; deduced levels, J, π, β-, β-n and β-2n feedings, logft values. Systematics of energies of excited states in the Z=52-64(even) and N=85 isotones. Comparison with large-scale shell-model calculations.

NUCLEAR STRUCTURE 137,138Te; calculated levels, J, π, one-neutron spectroscopic factors for 137Te, B(E2), spectroscopic quadrupole moments and g factors for levels in 138Te using large-scale shell-model, with Napoli and N3LOP interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.034320
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2021RO04      Phys.Rev. C 103, 014311 (2021)

M.Rocchini, K.Hadynska-Klek, A.Nannini, A.Goasduff, M.Zielinska, D.Testov, T.R.Rodriguez, A.Gargano, F.Nowacki, G.De Gregorio, H.Naidja, P.Sona, J.J.Valiente-Dobon, D.Mengoni, P.R.John, D.Bazzacco, G.Benzoni, A.Boso, P.Cocconi, M.Chiari, D.T.Doherty, F.Galtarossa, G.Jaworski, M.Komorowska, N.Marchini, M.Matejska-Minda, B.Melon, R.Menegazzo, P.J.Napiorkowski, D.Napoli, M.Ottanelli, A.Perego, L.Ramina, M.Rampazzo, F.Recchia, S.Riccetto, D.Rosso, M.Siciliano

Onset of triaxial deformation in 66Zn and properties of its first excited 0+ state studied by means of Coulomb excitation

NUCLEAR REACTIONS 208Pb(66Zn, 66Zn'), E=240 MeV from the XTU-Tandem accelerator of INFN-Legnaro; measured Eγ, Iγ, scattered 66Zn particles, (66Zn)γ-coin, γ-ray yields, γ(θ), (66Zn)γ(θ) in safe Coulomb excitation using GALILEO spectrometer for γ radiation, and SPIDER array for 66Zn particles. 66Zn; deduced levels, J, π, Coulomb excitation yields, reduced E2, E3, and M1 matrix elements using GOSIA least-squares fitting analysis, B(E2), B(E3), B(M1), spectroscopic quadrupole moments for the first and second 2+ and the first 4+ states, quadrupole shape invariants and deformation parameters; calculated collective wave function contours for selected states in 66Zn, and potential energy surfaces for 64,66,68,70Zn in (β2, γ) plane. Comparison with extensive beyond-mean-field (BMF) and large-scale shell-model calculations with a variety of model spaces and interactions, and with results of previous experimental results. Systematics of low-lying states in 62,64,66,68,70Zn.

doi: 10.1103/PhysRevC.103.014311
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2020JU02      Phys.Rev. C 102, 034324 (2020)

A.Jungclaus, J.M.Keatings, G.S.Simpson, H.Naidja, A.Gargano, S.Nishimura, P.Doornenbal, G.Gey, G.Lorusso, P.-A.Soderstrom, T.Sumikama, J.Taprogge, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, H.Suzuki, H.Takeda, Z.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, S.Bonig, J.-M.Daugas, R.Gernhauser, S.Ilieva, T.Kroll, A.Montaner-Piza, K.Moschner, D.Mucher, H.Nishibata, A.Odahara, R.Orlandi, M.Scheck, K.Steiger, A.Wendt

Evolution of proton single-particle states in neutron-rich Sb isotopes beyond N=82

RADIOACTIVITY 136,137,138Sn(β-)(β-n)[from 9Be(238U, F), E=345 MeV/nucleon, followed by separation and identification of fragments of interest using BigRIPS separator and ZeroDegree spectrometer, and implants deposited at WAS3ABi detector at RIBF-RIKEN facility]; measured Eγ, Iγ, Eβ, βγ- and γγ-coin using the EURICA array of Ge detectors, half-lives of decays of 136Sn, 137Sn and 138Sn. 136,137,138Sb; deduced levels, J, π, %β-n or Pn, β feedings, logft, configurations. Comparison with shell model calculations using the Napoli and N3LOP interactions. Systematics of first 5/2+ and 7/2+ states in 133,135,137,139,141Sb. 134,136,138Sb; calculated energies of levels in 0- to 7- spin range using shell model calculations using the Napoli and N3LOP interactions, and compared with experimental data. Systematics of experimental energies of the first 5/2+ and 7/2+ states in A=107-135, odd-A Sb isotopes.

doi: 10.1103/PhysRevC.102.034324
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2019NA01      Phys.Scr. 94, 014005 (2019)

H.Naidja

New shell-model investigation of the 208Pb mass region

NUCLEAR STRUCTURE 210,212,214,216Pb, 210Po, 212Rn, 214Ra, 216Th; calculated energy levels, J, π, B(E2), magnetic moments, binding energies. Comparison with available data.

doi: 10.1088/1402-4896/aaeca4
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2018LO18      Phys.Rev. C 98, 024323 (2018)

R.Lozeva, E.A.Stefanova, H.Naidja, F.Nowacki, T.Rzaca-Urban, J.Wisniewski, W.Urban, I.Ahmad, A.Blanc, G.De France, F.Didierjean, G.Duchene, H.Faust, J.P.Greene, U.Koster, P.Mutti, G.Simpson, A.G.Smith, T.Soldner, C.A.Ur

New yrast and non-yrast states in 136I and medium-spin structure of 136I and 136Xe : Roles of the proton d5/2 and the neutron h9/2 orbitals beyond 132Sn

NUCLEAR REACTIONS 235U, 241Pu(n, F)136I, E=thermal; measured Eγ, Iγ, γγ-coin, γγ(θ), γγ(linear pol) using the EXILL-FATIMA system, EXOGAM and EUROGAM clover HPGe detectors at ILL, Grenoble. 136I; deduced yrast and non-yrast levels, J, π, conversion coefficients, multipolarities, mixing ratios, configurations. Comparison with large scale shell-model calculations.

RADIOACTIVITY 248Cm, 252Cf(SF); 136Te, 136I(β-)[136Te from 235U(n, F), E=thermal followed by separation of 136Te using Lohengrin fission-fragment separator at Grenoble, and 136I from 136Te decay]; measured Eγ, Iγ, γγ-coin, γγ(θ), γγ(lin pol). 136I, 136Xe; deduced levels, J, π, conversion coefficients, multipolarities, mixing ratios, configurations, Gamow-Teller strengths. Comparison with large scale shell-model calculations.

doi: 10.1103/PhysRevC.98.024323
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2017NA10      Acta Phys.Pol. B48, 587 (2017)

H.Naidja, F.Nowacki

Spectroscopic Properties and Collectivity Beyond 132Sn

NUCLEAR STRUCTURE 134,136,138Te, 136,138,140Xe, 138,140,142Ba, 140,142,144Ce, 142,144,146Nd; calculated levels, J, π, B(E2, 2+ to 0+), μ(2+). 138Te, 140Xe, 142Ba, 144Ce, 146Nd; calculated quadrupole moment for 2+1 and 2+2 states, B(E2, 3+ to 2+2), deformation. Shell model with effective interaction based on N3LO potential. Compared with available data.

doi: 10.5506/APhysPolB.48.587
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2017NA15      Phys.Rev. C 95, 064303 (2017)

H.Naidja, F.Nowacki, B.Bounthong, M.Czerwinski, T.Rzaca-Urban, T.Roginski, W.Urban, J.Wisniewski, K.Sieja, A.G.Smith, J.F.Smith, G.S.Simpson, I.Ahmad, J.P.Greene

New excitations in 142Ba and 144Ce: Evolution of γ bands in the N=86 isotones

RADIOACTIVITY 252Cf(SF); 144La(β-)[from 252Cf SF]; measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array at Argonne National Laboratory. 142Ba, 144Ce; deduced high-spin levels, J, π, multipolarity, mixing ratios. 140Xe; deduced multipolarity and mixing ratios from γγ(θ) data. Comparison with large-scale shell-model calculations.

NUCLEAR STRUCTURE 142Ba, 144Ce; calculated levels, J, π, quadrupole moments, B(E2), potential energy surfaces in (β, γ) plane using large-scale shell-model. Comparison with experimental data.

doi: 10.1103/PhysRevC.95.064303
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2017NA25      Phys.Rev. C 96, 034312 (2017)

H.Naidja, F.Nowacki, B.Bounthong

Shell-model investigation of spectroscopic properties and collectivity in the nuclei beyond 132Sn

NUCLEAR STRUCTURE 134,136,138Te, 136,138,140Xe, 138,140,142Ba, 140,142,144Ce, 142,144,146Nd; calculated positive-parity yrast levels up to 6+, B(E2) for first 2+ states, E(4+)/E(2+), magnetic dipole moments of first 2+, 4+ and 6+ states, quadrupole moments of first two 2+ and first 3+ states, B(E2) for first 3+ to second 2+ states, B(E2)(first 4+ to first 2+)/B(E2)(first 2+ to 0+), β deformation parameter and γ angle of N=86 isotones. 138Te, 140Xe, 142Ba, 144Ce, 146Nd; calculated potential energy surfaces (PES) in (β, γ) plane using constrained Hartree-Fock shell-model (CHSM). Shell model calculations using the same effective interaction based on the realistic effective field theory potential N3LO. Comparison with experimental data.

doi: 10.1103/PhysRevC.96.034312
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2016HA23      Phys.Rev.Lett. 117, 062501 (2016)

K.Hadynska-Klek, P.J.Napiorkowski, M.Zielinska, J.Srebrny, A.Maj, F.Azaiez, J.J.Valiente Dobon, M.Kicinska-Habior, F.Nowacki, H.Naidja, B.Bounthong, T.R.Rodriguez, G.de Angelis, T.Abraham, G.Anil Kumar, D.Bazzacco, M.Bellato, D.Bortolato, P.Bednarczyk, G.Benzoni, L.Berti, B.Birkenbach, B.Bruyneel, S.Brambilla, F.Camera, J.Chavas, B.Cederwall, L.Charles, M.Ciemala, P.Cocconi, P.Coleman-Smith, A.Colombo, A.Corsi, F.C.L.Crespi, D.M.Cullen, A.Czermak, P.Desesquelles, D.T.Doherty, B.Dulny, J.Eberth, E.Farnea, B.Fornal, S.Franchoo, A.Gadea, A.Giaz, A.Gottardo, X.Grave, J.Grebosz, A.Gorgen, M.Gulmini, T.Habermann, H.Hess, R.Isocrate, J.Iwanicki, G.Jaworski, D.S.Judson, A.Jungclaus, N.Karkour, M.Kmiecik, D.Karpinski, M.Kisielinski, N.Kondratyev, A.Korichi, M.Komorowska, M.Kowalczyk, W.Korten, M.Krzysiek, G.Lehaut, S.Leoni, J.Ljungvall, A.Lopez-Martens, S.Lunardi, G.Maron, K.Mazurek, R.Menegazzo, D.Mengoni, E.Merchan, W.Meczynski, C.Michelagnoli, J.Mierzejewski, B.Million, S.Myalski, D.R.Napoli, R.Nicolini, M.Niikura, A.Obertelli, S.F.Ozmen, M.Palacz, L.Prochniak, A.Pullia, B.Quintana, G.Rampazzo, F.Recchia, N.Redon, P.Reiter, D.Rosso, K.Rusek, E.Sahin, M.-D.Salsac, P.-A.Soderstrom, I.Stefan, O.Stezowski, J.Styczen, Ch.Theisen, N.Toniolo, C.A.Ur, V.Vandone, R.Wadsworth, B.Wasilewska, A.Wiens, J.L.Wood, K.Wrzosek-Lipska, M.Zieblinski

Superdeformed and Triaxial States in 42Ca

NUCLEAR REACTIONS 208Pb, 197Au(42Ca, 42Ca'), E=170 MeV; measured reaction products, Eγ, Iγ. 42Ca; deduced γ-ray energies, B(E2), superdeformed bands. Comparison with available data.

doi: 10.1103/PhysRevLett.117.062501
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2016KL05      Phys.Rev. C 93, 054303 (2016)

M.Klintefjord, K.Hadynska-Klek, A.Gorgen, C.Bauer, F.L.Bello Garrote, S.Bonig, B.Bounthong, A.Damyanova, J.-P.Delaroche, V.Fedosseev, D.A.Fink, F.Giacoppo, M.Girod, P.Hoff, N.Imai, W.Korten, A.-C.Larsen, J.Libert, R.Lutter, B.A.Marsh, P.L.Molkanov, H.Naidja, P.Napiorkowski, F.Nowacki, J.Pakarinen, E.Rapisarda, P.Reiter, T.Renstrom, S.Rothe, M.D.Seliverstov, B.Siebeck, S.Siem, J.Srebrny, T.Stora, P.Thole, T.G.Tornyi, G.M.Tveten, P.Van Duppen, M.J.Vermeulen, D.Voulot, N.Warr, F.Wenander, H.De Witte, M.Zielinska

Structure of low-lying states in 140Sm studied by Coulomb excitation

NUCLEAR REACTIONS 94Mo(140Sm, 140Sm'), (140Sm, 94Mo'), E=2.85 MeV/nucleon, [secondary 140Sm beam from Ta(p, X), E=1.4 GeV reaction at ISOLDE-CERN using RILIS, REXTRAP and EBIS]; measured scattered 140Sm and 94Mo particles, Eγ, Iγ, (particle)γ-coin, γ-yields using MINIBALL array for γ rays and DSSSD detectors for particle detection, γ spectra with laser on and off, γ-ray angular distributions. 140Sm; deduced E2 matrix elements, B(E2), spectroscopic quadrupole moment for the first two 2+ and the first 4+ states using coupled channel code GOSIA and normalized to γ-ray yield for first 2+ state in 94Mo target, and to known half-life for the first 2+ in 140Sm. Comparison with theoretical calculations using beyond-mean-field model with Gogny D1S interaction, shell model, interacting boson approximation (IBA), and E(5) symmetry. Calculated potential energy surface in (β, γ) plane for 140Sm. 95Mo; measured Iγ yield for 3/2+ to 5/2+ ground-state transition.

doi: 10.1103/PhysRevC.93.054303
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2016LO01      Phys.Rev. C 93, 014316 (2016)

R.Lozeva, H.Naidja, F.Nowacki, J.Dudek, A.Odahara, C.-B.Moon, S.Nishimura, P.Doornenbal, J.-M.Daugas, P.-A.Soderstrom, T.Sumikama, G.Lorusso, J.Wu, Z.Y.Xu, H.Baba, F.Browne, R.Daido, Y.Fang, T.Isobe, I.Kojouharov, N.Kurz, Z.Patel, S.Rice, H.Sakurai, H.Schaffner, L.Sinclair, H.Watanabe, A.Yagi, R.Yokoyama, T.Kubo, N.Inabe, H.Suzuki, N.Fukuda, D.Kameda, H.Takeda, D.S.Ahn, D.Murai, F.L.Bello Garrote, F.Didierjean, E.Ideguchi, T.Ishigaki, H.S.Jung, T.Komatsubara, Y.K.Kwon, P.Lee, C.S.Lee, S.Morimoto, M.Niikura, H.Nishibata, I.Nishizuka

New isomer found in 14051Sb89: sphericity and shell evolution between N=82 and N=90

NUCLEAR REACTIONS 9Be(238U, F)140Sb, E=345 MeV/nucleon]; measured Enullg, Inullg, delayed γγ-coin, isomer half-life using EURICA 4π array, BigRIPS and ZeroDegree spectrometers at RIBF-RIKEN. 140Sb; deduced levels, J, π, multipolarity, configuration, B(M1), B(E2). 136,140Sb; compared isomeric populations. Comparison with shell model and mean Field calculations with Woods-Saxon potential. Systematics of (6-) and (7-) states; deduced evidence for evolution of πg7/2 and πd5/2 orbitals in 134,136,140Sb, and for νf7/2 orbital evolution up to N=89. Possible spin traps.

doi: 10.1103/PhysRevC.93.014316
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2016UR01      Phys.Rev. C 93, 034326 (2016)

W.Urban, K.Sieja, T.Rzaca-Urban, M.Czerwinski, H.Naidja, F.Nowacki, A.G.Smith, I.Ahmad

First evidence of γ collectivity close to the doubly magic core 132Sn

RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using EUROGAM2 array. 138Te, 140Xe; deduced high-spin levels, J, π, bands, multipolarities, mixing ratios, configurations. Comparison with shell-model calculations. Systematics of negative- and positive-parity levels in N=86 isotones 136Sn, 138Te, 140Xe, 142Ba, 144Ce, 146Nd, 148Sm, 150Gd. 106,108Ru; observed γ rays.

NUCLEAR STRUCTURE 138Te, 140Xe; calculated levels, J, π, B(E2), quadrupole moments, deformation parameter β using shell model.

doi: 10.1103/PhysRevC.93.034326
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2015LO08      Phys.Rev. C 92, 024304 (2015); Pub.Note Phys.Rev. C 92, 029901 (2015)

R.Lozeva, A.Odahara, C.-B.Moon, S.Nishimura, P.Doornenbal, H.Naidja, F.Nowacki, P.-A.Soderstrom, T.Sumikama, G.Lorusso, J.Wu, Z.Y.Xu, H.Baba, F.Browne, R.Daido, J.-M.Daugas, F.Didierjean, Y.Fang, T.Isobe, I.Kojouharov, N.Kurz, Z.Patel, S.Rice, H.Sakurai, H.Schaffner, L.Sinclair, H.Watanabe, A.Yagi, R.Yokoyama, T.Kubo, N.Inabe, H.Suzuki, N.Fukuda, D.Kameda, H.Takeda, D.S.Ahn, D.Murai, F.L.Bello Garrote, E.Ideguchi, T.Ishigaki, H.S.Jung, T.Komatsubara, Y.K.Kwon, S.Morimoto, M.Niikura, H.Nishibata, I.Nishizuka, T.Shimoda, K.Tshoo

New decay scheme of the 13651Sb85 6- isomer

NUCLEAR REACTIONS 9Be(238U, F), E=345 MeV/nucleon; measured Eγ, Iγ, delayed γ, γγ-coin, isomer half-life by γ(t) at RIBF-RIKEN facility. 136Sb; deduced levels, 6- isomer, isomeric ratio, J, π, multipolarity, B(E2), configuration. Comparison with previous results, and with shell-model predictions.

doi: 10.1103/PhysRevC.92.024304
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2015NA10      Acta Phys.Pol. B46, 669 (2015)

H.Naidja, F.Nowacki, K.Sieja

Recent Advances in the Shell Model Calculations of the Spectroscopic Properties of 134, 136, 138Sn

NUCLEAR STRUCTURE 134,136,138Sn; calculated binding energies, B(E2), energy levels, J, π. Nuclear shell model, comparison with available data.

doi: 10.5506/APhysPolB.46.669
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2015PE10      Phys.Rev. C 92, 034314 (2015)

C.M.Petrache, I.Ragnarsson, H.Naidja, F.Nowacki, R.Leguillon, T.Zerrouki, P.T.Greenlees, U.Jakobsson, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, M.Nyman, P.Peura, P.Rahkila, P.Ruotsalainen, J.Saren, C.Scholey, J.Sorri, J.Uusitalo

Search for the terminating 27- state in 140Nd

NUCLEAR REACTIONS 96Zr(48Ca, 4n), E=180 MeV; measured Eγ, Iγ, γγ-coin, γ(θ) using JUROGAM array and GREAT spectrometer at K-130 cyclotron facility of University of Jyvaskyla. 140Nd; deduced high-spin levels, J, π, multipolarity, configurations, fully aligned terminating state, shape coexistence. Comparison with cranked Nilsson-Strutinsky (CNS) calculations, and shell-model calculations for close-to-spherical and the triaxial states.

doi: 10.1103/PhysRevC.92.034314
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2014BI10      Phys.Rev.Lett. 113, 052502 (2014)

M.L.Bissell, J.Papuga, H.Naidja, K.Kreim, K.Blaum, M.De Rydt, R.F.Garcia Ruiz, H.Heylen, M.Kowalska, R.Neugart, G.Neyens, W.Nortershauser, F.Nowacki, M.M.Rajabali, R.Sanchez, K.Sieja, D.T.Yordanov

Proton-Neutron Pairing Correlations in the Self-Conjugate Nucleus 38K Probed via a Direct Measurement of the Isomer Shift

ATOMIC PHYSICS 38K; measured frequency of hyperfine spectra; deduced isomer shift, rms charge radii. Comparison with large-scale shell model calculations.

doi: 10.1103/PhysRevLett.113.052502
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2014SI18      Phys.Rev.Lett. 113, 132502 (2014)

G.S.Simpson, G.Gey, A.Jungclaus, J.Taprogge, S.Nishimura, K.Sieja, P.Doornenbal, G.Lorusso, P.-A.Soderstrom, T.Sumikama, Z.Y.Xu, H.Baba, F.Browne, N.Fukuda, N.Inabe, T.Isobe, H.S.Jung, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, Z.Li, H.Sakurai, H.Schaffner, Y.Shimizu, H.Suzuki, H.Takeda, Z.Vajta, H.Watanabe, J.Wu, A.Yagi, K.Yoshinaga, S.Bonig, J.-M.Daugas, F.Drouet, R.Gernhauser, S.Ilieva, T.Kroll, A.Montaner-Piza, K.Moschner, D.Mucher, H.Naidja, H.Nishibata, F.Nowacki, A.Odahara, R.Orlandi, K.Steiger, A.Wendt

Yrast 6+ Seniority Isomers of 136, 138Sn

NUCLEAR REACTIONS Be(238U, X)136Sn/138Sn, E=345 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced energy levels, intensities, isomeric states T1/2, seniority-2 coupling scheme, B(E2) for 6+ state. Comparison with shell model calculations, available data.

doi: 10.1103/PhysRevLett.113.132502
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2010NA05      Phys.Rev. C 81, 044320 (2010)

H.Naidja, P.Quentin, T.L.Ha, D.Samsoen

Pairing and vibrational correlations in the higher Tamm-Dancoff approximation (HTDA) approach

NUCLEAR STRUCTURE 40Ca; calculated excitation energies, EWSR, probabilities of different components of the correlated ground state and isoscalar giant quadrupole resonance (ISGQR) HTDA wave functions using higher Tamm-Dancoff Approximation for vibrational correlations with or without pairing.

doi: 10.1103/PhysRevC.81.044320
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2008QU02      Int.J.Mod.Phys. E17, 228 (2008)

P.Quentin, H.Naidja, L.Bonneau, J.Bartel, T.L.Ha

The higher TAMM-DANCOFF approximation theoretical context and phenomenological aspects

NUCLEAR STRUCTURE 40Ca; calculated quadrupole-quadrupole residual interaction parameters, odd-even mass differences and energy shifts using Higher Tamm-Dancoff approximation.

doi: 10.1142/S0218301308009732
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