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NSR database version of May 21, 2024.

Search: Author = E.Stefanova

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2022IV01      Phys.Rev. C 105, 034337 (2022)

D.Ivanova, S.Lalkovski, C.Costache, S.Kisyov, C.Mihai, N.Marginean, P.Petkov, L.Atanasova, D.Bucurescu, R.B.Cakirli, M.P.Carpenter, R.F.Casten, Gh.Cata-Danil, I.Cata-Danil, D.Deleanu, D.Filipescu, N.Florea, I.Gheorghe, D.Ghita, T.Glodariu, F.G.Kondev, R.Lica, R.Marginean, A.Negret, S.Pascu, T.Sava, E.A.Stefanova, L.Stroe, G.Suliman, R.Suvaila, O.Yordanov, N.V.Zamfir

Structure of the low-lying states in 99, 101, 103, 105Pd

NUCLEAR REACTIONS 90,92,94Zr(12C, 3n), E=45 MeV; 96Zr(13C, 4n), E=55 MeV; measured Eγ, Iγ, γγ-coin. 94Zr(12C, 3n), E=56 MeV; measured Eγ, Iγ, γγ-coin with plunger device. 99,101,103,105Pd; deduced levels, J, π, B(M1), B(E2), T1/2 of excited states, multipolarity, δ, high-spin states, bands structure. Half-lives were determined by centroid shift method, deconvolution method and differential decay curve method (on case of 103Pd experiment with plunger). Comparison with rigid triaxial rotor plus particle model (RTRPM) calculations. RoSphere array comprised of 8 HPGe and 11 LaBr3:Ce detectors at IFIN-HH (Romania).

doi: 10.1103/PhysRevC.105.034337
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2020YE02      Phys.Atomic Nuclei 83, 503 (2020)

A.V.Yeremin, A.G.Popeko, O.N.Malyshev, A.V.Isaev, A.A.Kuznetsova, Yu.A.Popov, A.I.Svirikhin, E.A.Sokol, M.S.Tezekbayeva, M.L.Chelnokov, V.I.Chepigin, A.Lopez-Martens, K.Hauschild, O.Dorvaux, B.Gall, J.Piot, S.Antalic, P.Mosat, D.Tonev, E.Stefanova

Spectroscopy of the Isotopes of Transfermium Elements in Dubna: Current Status and Prospects

NUCLEAR REACTIONS 242Pu(22Ne, X)264Rf, 238U(22Ne, X)260No, 248Cm(22Ne, X)270Sg, E not given; analyzed available data; deduced opportunities.

RADIOACTIVITY 256Rf(α), (SF) [from 208Pb(50Ti, X)256Rf, E not given]; analyzed available data; deduced T1/2, branching ratios.

doi: 10.1134/S1063778820040109
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2019GA29      Phys.Rev. C 100, 044309 (2019)

E.R.Gamba, A.M.Bruce, S.Lalkovski, M.Rudigier, S.Bottoni, M.P.Carpenter, S.Zhu, J.T.Anderson, A.D.Ayangeakaa, T.A.Berry, I.Burrows, M.Carmona-Gallardo, R.J.Carroll, P.Copp, D.M.Cullen, T.Daniel, G.Fernandez-Martinez, J.P.Greene, L.A.Gurgi, D.J.Hartley, R.Ilieva, S.Ilieva, F.G.Kondev, T.Kroll, G.J.Lane, T.Lauritsen, I.Lazarus, G.Lotay, C.R.Nita, Zs.Podolyak, V.Pucknell, M.Reed, P.H.Regan, J.Rohrer, J.Sethi, D.Seweryniak, C.M.Shand, J.Simpson, M.Smolen, E.A.Stefanova, V.Vedia, O.Yordanov

Fast-timing measurements in the ground-state band of 114Pd

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, level half-lives by fast-timing γγ(t) technique using Gammasphere array with 51 HPGe detectors, and FATIMA array with 25 LaBr3(Ce) detectors at the Argonne National Laboratory. 114Pd; deduced levels, J, π, half-lives for the first 2+, 4+ and 6+ states, B(E2), transition quadrupole moments, β2. Comparison of experimental B(E2) values with those predicted by the vibrator, rigid axial rotor, Wilets-Jean and Davydov-Filippov models. Systematics of B(E2) values for the first 2+ state in Z=44-48, N=56-74 even-even nuclei.

doi: 10.1103/PhysRevC.100.044309
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2019SV01      Phys.Part. and Nucl.Lett. 16, 768 (2019)

A.I.Svirikhin, A.V.Andreev, A.V.Yeremin, N.I.Zamyatin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, M.S.Tezekbayeva, M.L.Chelnokov, V.I.Chepigin, T.M.Schneidman, B.Andel, S.Antalic, A.Bronis, P.Mosat, B.Gall, O.Dorvaux, B.M.Retailleau, K.Hauschild, A.Lopez-Martenz, P.Chauveau, E.Stefanova, D.Tonev

Prompt Neutrons from Spontaneous 254Rf Fission

doi: 10.1134/S1547477119060311
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2018DA20      Bulg.J.Phys. 45, 13 (2018)

T.Daniel, S.Lalkovski, S.Kisyov, N.Marginean, C.Mihai, T.Alharbi, L.Atanasova, A.M.Bruce, D.Bucurescu, C.Costashe, N.M.Florea, E.R.Gamba, D.G.Ghita, T.Glodariu, L.A.Gurgi, J.Kownacki, R.Marginean, C.R.Nita, R.Mihai, A.Mitu, I.O.Mitu, A.Negret, S.Pascu, O.J.Roberts, O.Yordanov, J.Srebrny, E.Stefanova, L.Stroe, R.Suvaila, S.Toma, A.Turturica, Zs.Podolyak

Gamma Ray Spectroscopy of 105Ru from a (d, pγ) Reaction

NUCLEAR REACTIONS 104Ru(d, pγ)105Ru, E=6.7 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, prominent triaxiality. Comparison with the Rigid Triaxial Rotor Model.


2018GA23      Acta Phys.Pol. B49, 555 (2018)

E.R.Gamba, A.M.Bruce, M.Rudigier, S.Lalkovski, S.Bottoni, M.P.Carpenter, S.Zhu, A.D.Ayangeakaa, J.T.Anderson, T.A.Berry, I.Burrows, R.J.Carrol, P.Copp, M.Carmona-Gallardo, D.M.Cullen, T.Daniel, G.Fernandez-Martinez, J.P.Greene, L.A.Gurgi, D.J.Hartley, R.Ilieva, S.Ilieva, R.V.F.Janssens, F.G.Kondev, T.Kroll, G.J.Lane, T.Lauritsen, I.Lazarus, G.Lotay, C.R.Nita, Zs.Podolyak, V.Pucknell, M.Reed, P.H.Regan, J.Rohrer, J.Sethi, D.Seweryniak, C.M.Shand, J.Simpson, M.Smolen, V.Vedia, E.A.Stefanova, O.Yordanov

Fast-timing Measurements in 100Zr Using LaBr3(Ce) Detectors Coupled with Gammasphere

RADIOACTIVITY 252Cf(SF); measured 100Zr fission fragment 4+ state Eγ, Iγ, T1/2, fission partners fragments using Digital Gammasphere (DGS) acquisition with hybrid detector made of 51 HPGe from Gammasphere and 25 LaBr3(Ce) scintillators (part of UK NuSTAR Collaboration); deduced first excited state T1/2, deformation, quadrupole moment, B(E2), LaBr3(Ce) γ-γ matrix, DGS γ-γ matrix, centroid difference between delayed and anti-delayed time distributions. Results preliminary, the main aim was the feasibility study.

doi: 10.5506/aphyspolb.49.555
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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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2018SV02      Bull.Rus.Acad.Sci.Phys. 82, 632 (2018)

A.I.Svirikhin, A.V.Yeremin, A.V.Andreev, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, T.M.Schneidman, B.Gall, O.Dorvaux, P.Brione, K.Hauschild, A.Lopez-Martenz, K.Rezynkina, S.Mullins, P.Jones, P.Mosat, B.Andel, Z.Kalaninova, M.Z.Asfari, N.Yoshihiro, J.Piot, E.Stefanova, D.Tonev

Short-Lived Isotopes of Transfermium Elements: Studying Characteristics of Spontaneous Fissioning

RADIOACTIVITY 256Rf, 250,252No(SF)[reaction created]; calculated formation of isotopes vs energy; compared with data (short- and long-lived isomers separately).

COMPILATION 236,238,240,242,244Pu, 242,244,246,248,250Cm, 249Bk, 246,250,252,254Cf, 244,246,256,258Fm, 250,252No, 256Rf, 258,260Md, 268Db(SF); 250,250m,252No; compiled average number of emitted neutrons accompanying spontaneous fission vs TKE; calculated spontaneous fission fragments TKE; compared with data.

doi: 10.3103/S1062873818060308
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2017AY04      Phys.Rev. C 96, 024315 (2017)

S.Aydin, M.Ionescu-Bujor, G.Tz.Gavrilov, B.I.Dimitrov, S.M.Lenzi, F.Recchia, D.Tonev, M.Bouhelal, F.Kavillioglu, P.Pavlov, D.Bazzacco, P.G.Bizzeti, A.M.Bizzeti-Sona, G.de Angelis, I.Deloncle, E.Farnea, A.Gadea, A.Gottardo, N.Goutev, F.Haas, T.Huyuk, H.Laftchiev, S.Lunardi, Tz.K.Marinov, D.Mengoni, R.Menegazzo, C.Michelagnoli, D.R.Napoli, P.Petkov, E.Sahin, P.P.Singh, E.A.Stefanova, C.A.Ur, J.J.Valiente-Dobon, M.S.Yavahchova

High-spin states and lifetimes in 33S and shell-model interpretation in the sd-fp space

NUCLEAR REACTIONS 24Mg(14N, pα), E=40 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO), and level half-lives by DSAM using the 4π GASP array composed of 40 Compton-suppressed HPGe detectors at the LNL-Legnaro XTU-tandem accelerator facility. 33S; deduced high-spin levels, J, π, multipolarities, mixing ratios, B(E2), B(M1), B(E1), B(M2), B(E3), configurations. Comparison with large scale shell-model calculations using the ANTOINE code with the USD, PSDPF, and sdfp effective interactions.

doi: 10.1103/PhysRevC.96.024315
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Data from this article have been entered in the XUNDL database. For more information, click here.


2017LA17      Phys.Rev. C 96, 044328 (2017)

S.Lalkovski, E.A.Stefanova, S.Kisyov, A.Korichi, D.Bazzacco, M.Bergstrom, A.Gorgen, B.Herskind, H.Hubel, A.Jansen, T.L.Khoo, T.Kutsarova, A.Lopez-Martens, A.Minkova, Zs.Podolyak, G.Schonwasser, O.Yordanov

Structure of the neutron mid-shell nuclei 111, 113Ag64, 66

NUCLEAR REACTIONS 168Er(30Si, X), E=145 MeV; measured Eγ, Iγ, γγ-coin using EUROBALL III array at LNL-Legnaro XTU Tandem accelerator. 111,113Ag; deduced high-spin levels, J, π, γ-branching ratios, band structures, B(M1), B(E2). Comparison with Interacting Boson-Fermion model (IBFM-1) calculations.

NUCLEAR STRUCTURE 111,113Ag, 112,114Cd; calculated levels, J, π, B(E2), B(M1) using Interacting Boson-Fermion model (IBFM-1 for Ag nuclei and IBM-1 for Cd nuclei). Comparison with experimental values.

doi: 10.1103/PhysRevC.96.044328
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Data from this article have been entered in the XUNDL database. For more information, click here.


2017RU02      Acta Phys.Pol. B48, 351 (2017)

M.Rudigier, S.Lalkovski, E.R.Gamba, A.M.Bruce, Zs.Podolyak, P.H.Regan, M.Carpenter, S.Zhu, A.D.Ayangeakaa, J.T.Anderson, T.Berry, S.Bottoni, I.Burrows, R.Carroll, P.Copp, D.Cullen, T.Daniel, L.Fraile, M.Carmona-Gallardo, A.Grant, J.P.Greene, L.A.Guegi, D.Hartley, R.Ilieva, S.Ilieva, R.V.F.Janssens, F.G.Kondev, T.Kroll, G.J.Lane, T.Lauritsen, I.Lazarus, G.Lotay, G.Fernandez-Martinez, V.Pucknell, M.Reed, J.Rohrer, J.Sethi, D.Seweryniak, C.M.Shand, J.Simpson, M.Smolen, E.Stefanova, V.Vedia, O.Yordanov

Fast Timing Measurement Using an LaBr3(Ce) Scintillator Detector Array Coupled with Gammasphere

doi: 10.5506/APhysPolB.48.351
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2016KI20      Bulg.J.Phys. 43, 195 (2016)

S.Kisyov, S.Lalkovski, D.Ivanova, N.Marginean, D.Bucurescu, Gh.Cata-Danil, I.Cata-Danil, D.Deleanu, N.Florea, D.Ghita, T.Glodariu, R.Lica, R.Marginean, C.Mihai, A.Negret, C.Nita, A.Olacel, S.Pascu, P.Petkov, T.Sava, E.A.Stefanova, R.Suvaila, S.Toma, O.Yordanov, N.V.Zamfir

Triaxial Isomer in 103Ru

NUCLEAR REACTIONS 100Mo(α, n), E=15-18 MeV; measured Eγ, Iγ, γγ-coin, isomer half-life by γγ(t) using ROSPHERE array of 11 LaBr3(Ce) and 14 HPGe detectors at Tandem accelerator facility of IFIN-HH, Bucharest. 103Ru; deduced levels, J, π, B(E1). Comparison with triaxial rotor plus particle model calculations.

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


2016NA29      Phys.Rev. C 94, 034307 (2016)

S.Nag, A.K.Singh, G.B.Hagemann, G.Sletten, B.Herskind, T.Dossing, I.Ragnarsson, H.Hubel, A.Burger, S.Chmel, A.N.Wilson, J.Rogers, M.P.Carpenter, R.V.F.Janssens, T.L.Khoo, F.G.Kondev, T.Lauritsen, S.Zhu, A.Korichi, E.A.Stefanova, P.Fallon, B.M.Nyako, J.Timar, K.Juhasz

Observation of high-spin bands with large moments of inertia in 124Xe

NUCLEAR REACTIONS 80Se(48Ca, 4n)124Xe, E=207 MeV; measured Eγ, Iγ, γγ-coin using GAMMASPHERE array at ATLAS-ANL facility. 124Xe; deduced high-spin levels, J, π, bands, moment of inertia plots, configurations; calculated total-energy surface contours Comparison with cranked Nilsson-Strutinsky calculations. Systematics of alignment plots in 120Te, 125I, 124,125,126Xe, 124Ba, 132Ce.

doi: 10.1103/PhysRevC.94.034307
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016SV02      Phys.Part. and Nucl.Lett. 13, 480 (2016)

A.I.Svirikhin, A.V.Yeremin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, B.Andel, M.Z.Asfari, B.Gall, N.Yoshihiro, Z.Kalaninova, S.Mullins, J.Piot, E.Stefanova, D.Tonev

Spontaneous fission of 256Rf, new data

RADIOACTIVITY 256Rf(SF)[from 208Pb(50Ti, 2n), E=237 MeV]; measured nuclei, Eα, Iα, fission fragments, En, In; deduced fission neutron multiplicity, spontaneous fission T1/2.

COMPILATION A=236-268; compiled spontaneous fission neutron multiplicity vs mass number.

doi: 10.1134/S1547477116040129
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41613.


2015KI14      Bulg.J.Phys. 42, 583 (2015)

S.Kisyov, S.Lalkovski, D.Ivanova, N.Marginean, D.Bucurescu, Gh.Cata-Danil, I.Cata-Danil, D.Deleanu, D.G.Gihta, T.Glodariu, R.Lica, R.Marginean, C.Mihai, A.Negret, C.R.Nita, S.Pascu, P.Petkov, T.Sava, E.Stefanova, R.Suvaila, S.Toma, O.Yordanov, N.V.Zamfir

Structure of Low-Lying PositiveParity States in 99, 101, 103Ru from In-Beam Fast-Timing Measurements

NUCLEAR REACTIONS 96,98,100Mo(α, n), E=15-18 MeV; measured Eγ, Iγ, γγ-coin, half-lives of isomers by γγ(t) using ROSPHERE array of 11 LaBr3(Ce) and 14 HPGe detectors at Tandem accelerator facility of IFIN-HH, Bucharest. 99,101,103Ru; deduced levels, J, π, B(M1), B(E2). Comparison with triaxial rotor. plus particle model calculations.

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


2014LA15      Phys.Rev. C 89, 064312 (2014)

S.Lalkovski, D.Ivanova, E.A.Stefanova, A.Korichi, P.Petkov, J.Kownacki, T.Kutsarova, A.Minkova, D.Bazzacco, M.Bergstrom, A.Gorgen, B.Herskind, H.Hubel, A.Jansen, S.Kisyov, T.L.Khoo, F.G.Kondev, A.Lopez-Martens, Zs.Podolyak, G.Schonwasser, O.Yordanov

Coexisting structures in 105Ru

NUCLEAR REACTIONS 168Er(30Si, F), E=142 MeV; measured Eγ, Iγ, γγ-coin using EUROBALL III spectrometer. 105Ru; deduced high-spin levels, J, π, bands, conversion coefficient, multipolarity, B(M1), B(E2). Comparison with rigid-triaxial-rotor-plus-particle model and shell-model calculations, and previous experimental results and evaluated data.

doi: 10.1103/PhysRevC.89.064312
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Data from this article have been entered in the XUNDL database. For more information, click here.


2013GU23      Phys.Rev. C 88, 014301 (2013)

G.Gurdal, E.A.Stefanova, P.Boutachkov, D.A.Torres, G.J.Kumbartzki, N.Benczer-Koller, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, T.Ahn, V.Anagnostatou, C.Bernards, M.Elvers, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, E.Williams

Measurements of g(41+, 22+)in 70, 72, 74, 76Ge: Systematics of low-lying structures in 30 ≤ Z ≤ 40 and 30 ≤ N ≤ 50 nuclei

NUCLEAR REACTIONS C, Mg(70Ge, 70Ge'), (72Ge, 72Ge'), (74Ge, 74Ge'), (76Ge, 76Ge'), E=165-225 MeV; measured Eγ, precession angles, angular correlations; deduced g factors. Natural C or Mg targets with mid layer of Gd or Fe and backing of Ta and Cu.

NUCLEAR MOMENTS 70,72,74,76Ge; measured g factors of first and second 2+ and first 4+ states using transient field (TF) technique following Coulomb excitation in inverse kinematics at WNSL-Yale facility. Systematics of g factors for neighboring nuclides of even-even N=32-50, Z=30-38. Comparison with large-scale shell-model, collective models, and IBA-II, and with previous experimental studies. No evidence for shell closure for neutrons at N=38 or N=40.

doi: 10.1103/PhysRevC.88.014301
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Data from this article have been entered in the XUNDL database. For more information, click here.


2012ST13      Phys.Rev. C 86, 044302 (2012)

E.A.Stefanova, S.Lalkovski, A.Korichi, T.Kutsarova, A.Lopez-Martens, F.R.Xu, H.L.Liu, S.Kisyov, A.Minkova, D.Bazzacco, M.Bergstrom, A.Gorgen, F.Hannachi, B.Herskind, H.Hubel, A.Jansen, T.L.Khoo, Zs.Podolyak, G.Schonwasser

Observation of positive-parity bands in 109Pd and 111Pd: Enhanced γ softness

NUCLEAR REACTIONS 168Er(30Si, F), E=142 MeV; measured Eγ, Iγ, γγ-coin following heavy-ion induced fission. Euroball III array for γ detection at Legnaro facility. 109,111Pd; deduced high-spin levels, J, π, bands, alignments. Total Routhian surface (TRS) calculations. Enhanced γ softness.

doi: 10.1103/PhysRevC.86.044302
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Data from this article have been entered in the XUNDL database. For more information, click here.


2009KU03      Phys.Rev. C 79, 014315 (2009)

T.Kutsarova, E.A.Stefanova, A.Minkova, S.Lalkovski, A.Korichi, A.Lopez-Martens, F.Hannachi, H.Hubel, A.Gorgen, A.Jansen, G.Schonwasser, T.L.Khoo, B.Herskind, M.Bergstrom, D.Bazzacco, Z.Podolyak

High-spin level scheme of 194Pb

NUCLEAR REACTIONS 168Er(30Si, 4n)194Pb, E=142 MeV; measured Eγ, Iγ, γγ-coin, angular distributions. 194Pb; deduced levels, J, π, multipolarity, rotational bands.

doi: 10.1103/PhysRevC.79.014315
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Data from this article have been entered in the XUNDL database. For more information, click here.


2008WE07      Phys.Rev. C 78, 031301 (2008)

V.Werner, N.Benczer-Koller, G.Kumbartzki, J.D.Holt, P.Boutachkov, E.Stefanova, M.Perry, N.Pietralla, H.Ai, K.Aleksandrova, G.Anderson, R.B.Cakirli, R.J.Casperson, R.F.Casten, M.Chamberlain, C.Copos, B.Darakchieva, S.Eckel, M.Evtimova, C.R.Fitzpatrick, A.B.Garnsworthy, G.Gurdal, A.Heinz, D.Kovacheva, C.Lambie-Hanson, X.Liang, P.Manchev, E.A.McCutchan, D.A.Meyer, J.Qian, A.Schmidt, N.J.Thompson, E.Williams, R.Winkler

Evidence for the microscopic formation of mixed-symmetry states from magnetic moment measurements

NUCLEAR REACTIONS C(92Zr, 92Zr'), (94Zr, 94Zr'), E=275 MeV; measured Eγ, Iγ, (particle)γ-coin. Comparison with shell model and quasiparticle phonon model calculations.

NUCLEAR MOMENTS C(92Zr, 92Zr'), (94Zr, 94Zr'), E=275 MeV; 92,94Zr; measured g factors. Transient field technique.

doi: 10.1103/PhysRevC.78.031301
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Data from this article have been entered in the XUNDL database. For more information, click here.


2007BE42      Phys.Atomic Nuclei 70, 1330 (2007)

N.Benczer-Koller, G.J.Kumbartzki, P.Boutachkov, A.Escuderos, Y.Y.Sharon, L.Zamick, E.A.Stefanova, S.J.Q.Robinson, V.Werner

Magnetic moments: Study of the interplay between single-particle and collective excitations

NUCLEAR STRUCTURE 38,40S, 36,38,40Ar, 70Ge, 92,94Zr; analyzed coulomb excitation data for g-factor measurements for mixed symmetry states. Compared results to model calculations.

doi: 10.1134/S1063778807080029
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2007BO41      Phys.Rev. C 76, 054311 (2007)

P.Boutachkov, S.J.Q.Robinson, A.Escuderos, G.Kumbartzki, N.Benczer-Koller, E.Stefanova, Y.Y.Sharon, L.Zamick, E.A.McCutchan, V.Werner, H.Ai, A.B.Garnsworthy, G.Gurdal, A.Heinz, J.Qian, N.J.Thompson, E.Williams, R.Winkler

Measurement of the g factor of the 4+1 state in 70Ge

NUCLEAR REACTIONS C(70Ge, X)70Ge, E=190, 225 MeV; measured Eγ, Iγ; deduced levels, J, π, g-factors for 2+, 3+ and 4+ states, B(E2), half-lives. Comparison with calculated and measured g-factors of 64,66,68Zn, 74,76,78,80,82Se.

doi: 10.1103/PhysRevC.76.054311
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2005GL09      J.Phys.(London) G31, S1559 (2005)

K.A.Gladnishki, D.L.Balabanski, P.Petkov, A.Dewald, D.Tonev, M.Axiotis, A.Fitzler, M.Danchev, S.Harissopulos, S.Lalkovski, N.Marginean, T.Martinez, O.Moeller, G.Neyens, A.Spyrou, E.A.Stefanova, C.Ur

Lifetime measurements in the Yrast magnetic band in 193Pb

NUCLEAR REACTIONS 170Er(28Si, 5n), E=149 MeV; measured Eγ, Iγ, γγ-coin, DSA. 193Pb deduced magnetic rotational band levels T1/2. GASP array, recoil-distance and Doppler-shift attenuation methods used.

doi: 10.1088/0954-3899/31/10/032
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2005ST08      Eur.Phys.J. A 24, 1 (2005)

E.A.Stefanova, K.P.Lieb, I.Stefanescu, G.De Angelis, D.Curien, J.Eberth, E.Farnea, A.Gadea, G.Gersch, A.Jungclaus, T.Martinez, R.Schwengner, T.Steinhardt, N.Warr, D.Weisshaar, R.Wyss

Observation of negative-parity high-spin states of 68As

NUCLEAR REACTIONS 40Ca(32S, n3p), E=95, 105 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 68As deduced high-spin levels, J, π, configurations. Euroball and Euclides arrays, total Routhian surface calculations.

doi: 10.1140/epja/i2004-10126-5
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2005ST22      Phys.Rev. C 72, 014309 (2005)

E.A.Stefanova, N.Benczer-Koller, G.J.Kumbartzki, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, L.Bernstein, J.R.Cooper, D.Judson, M.J.Taylor, M.A.McMahan, L.Phair

Near spherical shell-model structure of the 2+1 state in 40Ar from g-factor measurements

NUCLEAR REACTIONS C(40Ar, 40Ar'), E=80 MeV; C(46Ti, 46Ti'), E=100 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin following projectile Coulomb excitation. 40Ar level deduced g factor, configuration. Transient field technique, comparison with shell model calculations.

doi: 10.1103/PhysRevC.72.014309
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2004ST09      Phys.Rev. C 69, 034333 (2004)

I.Stefanescu, J.Eberth, G.de Angelis, N.Warr, G.Gersch, T.Steinhardt, O.Thelen, D.Weisshaar, T.Martinez, A.Jungclaus, R.Schwengner, K.P.Lieb, E.A.Stefanova, D.Curien, A.Gelberg

Level structure of 69Se

NUCLEAR REACTIONS 40Ca(32S, n2p), E=95, 105 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 69Se deduced high-spin levels, J, π, δ, configurations. Euroball, Euclides arrays, rigid triaxial rotor plus particle model analysis.

doi: 10.1103/PhysRevC.69.034333
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2004ST23      Phys.Rev. C 70, 044304 (2004)

I.Stefanescu, J.Eberth, G.Gersch, T.Steinhardt, O.Thelen, N.Warr, D.Weisshaar, B.G.Carlsson, I.Ragnarsson, G.de Angelis, T.Martinez, A.Jungclaus, R.Schwengner, K.P.Lieb, E.A.Stefanova, D.Curien

High-spin states and band terminations in 69As

NUCLEAR REACTIONS 40Ca(32S, 3p), E=95, 105 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 69As deduced high-spin levels, J, π, configurations, band termination features. Euroball, Euclides, NWall arrays, cranked Nilsson-Strutinsky model calculations.

doi: 10.1103/PhysRevC.70.044304
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2003ST05      Phys.Rev. C 67, 054319 (2003)

E.A.Stefanova, I.Stefanescu, G.de Angelis, D.Curien, J.Eberth, E.Farnea, A.Gadea, G.Gersch, A.Jungclaus, K.P.Lieb, T.Martinez, R.Schwengner, T.Steinhardt, O.Thelen, D.Weisshaar, R.Wyss

Four-quasiparticle alignments in 66Ge

NUCLEAR REACTIONS 40Ca(32S, 2pα), E=95, 105 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 66Ge deduced high-spin levels, J, π, configurations, deformation. Euroball, Euclides arrays. Total Routhian surface calculations.

doi: 10.1103/PhysRevC.67.054319
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2003ST26      Acta Phys.Pol. B34, 2237 (2003)

E.A.Stefanova, I.Stefanescu, G.De Angelis, D.Curien, J.Eberth, E.Farnea, A.Gadea, G.Gersch, A.Jungclaus, K.P.Lieb, T.Martinez, R.Schwengner, T.Steinhardt, O.Thelen, N.Warr, D.Weisshaar, R.Wyss

Four-quasiparticle alignments in 66Ge

NUCLEAR REACTIONS 40Ca(32S, 2pα), E=95, 105 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin. 66Ge deduced high-spin levels, J, π, configurations. Euroball, Euclides arrays. Total Routhian surface calculations.


2002ST06      Phys.Rev. C65, 034323 (2002)

E.A.Stefanova, M.Danchev, R.Schwengner, D.L.Balabanski, M.P.Carpenter, M.Djongolov, S.M.Fischer, D.J.Hartley, R.V.F.Janssens, W.F.Mueller, D.Nisius, W.Reviol, L.L.Riedinger, O.Zeidan

Structure of High-Spin States in 91Sr and 92Sr

NUCLEAR REACTIONS 159Tb(36S, X)91Sr/92Sr, E=165 MeV; measured Eγ, Iγ, γγ-coin. 91,92Sr deduced high-spin levels, J, π, configurations. Gammasphere array, comparison with shell-model results.

doi: 10.1103/PhysRevC.65.034323
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2001ST14      Phys.Rev. C63, 064315 (2001)

E.A.Stefanova, R.Schwengner, G.Rainovski, K.D.Schilling, A.Wagner, F.Donau, E.Galindo, A.Jungclaus, K.P.Lieb, O.Thelen, J.Eberth, D.R.Napoli, C.A.Ur, G.de Angelis, M.Axiotis, A.Gadea, N.Marginean, T.Martinez, Th.Kroll, T.Kutsarova

Structure of High-Spin States in 89Sr and 90Sr

NUCLEAR REACTIONS 82Se(11B, 3np), (11B, 2np), E=37 MeV; measured Eγ, Iγ, γγ-coin. 89,90Sr deduced high-spin levels, J, π. GASP array. Comparison with shell model calculations.

doi: 10.1103/PhysRevC.63.064315
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2000ST05      Nucl.Phys. A669, 14 (2000)

E.A.Stefanova, T.Kutsarova, I.Deloncle, M.-G.Porquet, M.Grinberg, E.Gueorguieva, Ts.Venkova, A.Minkova, F.Azaiez, S.Bouneau, C.Bourgeois, J.Duprat, B.J.P.Gall, C.Gautherin, F.Hoellinger, R.Lucas, H.Sergolle, N.Schulz, A.Wilson, Ch.Stoyanov

High-Spin States of 3888Sr50: Breaking of the neutron core

NUCLEAR REACTIONS 176Yb(28Si, F)88Sr, E=145 MeV; measured Eγ, Iγ, γγ-coin following compound nucleus fission. 88Sr deduced high-spin levels, possible J, π, configurations. Eurogam2 array. Comparison with neighboring isotones, quasiparticle-phonon model calculations.

doi: 10.1016/S0375-9474(99)00566-7
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2000ST29      Phys.Rev. C62, 054314 (2000)

E.A.Stefanova, R.Schwengner, J.Reif, H.Schnare, F.Donau, M.Wilhelm, A.Fitzler, S.Kasemann, P.von Brentano, W.Andrejtscheff

Influence of Neutron-Core Excitations on High-Spin States in 88Sr

NUCLEAR REACTIONS 80Se(11B, 2np), E=45 MeV; measured Eγ, Iγ, γγ-coin, DSA. 88Sr deduced high-spin levels, J, π, configurations, B(M1). Comparison with shell model calculations.

doi: 10.1103/PhysRevC.62.054314
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1999VE12      Eur.Phys.J. A 6, 405 (1999)

Ts.Venkova, M.-G.Porquet, I.Deloncle, B.J.P.Gall, H.De Witte, P.Petkov, A.Bauchet, T.Kutsarova, E.Gueorguieva, J.Duprat, C.Gautherin, F.Hoellinger, R.Lucas, A.Minkova, N.Schulz, H.Sergolle, E.A.Stefanova, A.Wilson

High-Spin Structure of the Neutron-Rich 107, 10945Rh Isotopes: The role of triaxiality

NUCLEAR REACTIONS 176Yb(28Si, F), E=145 MeV; measured Eγ, Iγ, γγ-coin. 107,109Rh deduced high-spin levels, J, π, configurations, triaxial deformation. Comparison with asymmetric rotor model.

doi: 10.1007/s100500050363
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