NSR Query Results


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NSR database version of May 21, 2024.

Search: Author = I.Stefanescu

Found 91 matches.

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2024ST02      Nuovo Cim. C 47, 39 (2024)

L.Stuhl, M.Sasano, J.Gao, Y.Hirai, K.Yako, T.Wakasa, D.S.Ahn, H.Baba, A.I.Chilug, S.Franchoo, Y.Fujino, N.Fukuda, J.Gibelin, I.S.Hahn, Z.Halasz, T.Harada, M.N.Harakeh, D.Inomoto, T.Isobe, H.Kasahara, D.Kim, G.G.Kiss, T.Kobayashi, Y.Kondo, Z.Korkulu, S.Koyama, Y.Kubota, A.Kurihara, H.N.Liu, M.Matsumoto, S.Michimasa, H.Miki, M.Miwa, T.Motobayashi, T.Nakamura, M.Nishimura, H.Otsu, V.Panin, S.Park, A.T.Saito, H.Sakai, H.Sato, T.Shimada, Y.Shimizu, S.Shimoura, A.Spiridon, I.C.Stefanescu, X.Sun, Y.L.Sun, H.Suzuki, E.Takada, Y.Togano, T.Tomai, L.Trache, D.Tudor, T.Uesaka, H.Yamada, Z.Yang, M.Yasuda, K.Yoneda, K.Yoshida, J.Zenihiro, N.Zhang

Study of Gamow-Teller giant resonance in 11Li drip-line nucleus

NUCLEAR REACTIONS 1H(11Li, n), E=182 MeV/nucleon; measured reaction products, En, In. 11Li, 11Be; deduced level energies, decay channels, Gamow-Teller (GT) transitions. The neutron detector array PANDORA and the SAMURAI spectrometer, RI Beam Factory (RIBF) of RIKEN Nishina Center.

doi: 10.1393/ncc/i2024-24039-6
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2023EL04      Phys.Lett. B 844, 138072 (2023)

Z.Elekes, V.Panin, T.R.Rodriguez, K.Sieja, D.S.Ahn, A.Al-Adili, H.Baba, A.I.Stefanescu, K.J.Cook, Cs.Dosa, N.Fukuda, J.Gao, J.Gibelin, K.I.Hahn, Z.Halasz, S.W.Huang, T.Isobe, M.M.Juhasz, D.Kim, T.Kobayashi, Y.Kondo, Z.Korkulu, A.Kurihara, I.Kuti, H.Miki, K.Miki, T.Motobayashi, H.Otsu, A.Saastamoinen, M.Sasano, H.Sato, T.Shimada, Y.Shimizu, L.G.Sobotka, I.Stefanescu, L.Stuhl, H.Suzuki, H.Takeda, Y.Togano, T.Tomai, L.Trache, D.Tudor, T.Uesaka, Y.Utsuki, H.Wang, A.Yasuda, K.Yoneda, Y.Yoshitome

Shape coexistence in 66Se

NUCLEAR REACTIONS 12C(67Se, n)66Se, E=170-250 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies and relative intensities, γ-ray production σ, J, π, partial level scheme, shape coexistence. Comparison with theoretical calculations. The CATANA array, Radioactive Isotope Beam Factory operated by the RIKEN Nishina Center and by the Center for Nuclear Study of the University of Tokyo.

doi: 10.1016/j.physletb.2023.138072
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2022ST07      Eur.Phys.J. A 58, 223 (2022)

A.I.Stefanescu, V.Panin, L.Trache, T.Motobayashi, H.Otsu, A.Saastamoinen, T.Uesaka, L.Stuhl, J.Tanaka, D.Tudor, I.C.Stefanescu, A.E.Spiridon, K.Yoneda, H.Baba, M.Kurokawa, Y.Togano, Z.Halasz, M.Sasano, S.Ota, Y.Kubota, D.S.Ahn, T.Kobayashi, Z.Elekes, N.Fukuda, H.Takeda, D.Kim, E.Takada, H.Suzuki, K.Yoshida, Y.Shimizu, H.N.Liu, Y.L.Sun, T.Isobe, J.Gibelin, P.J.Li, J.Zenihiro, F.M.Marques, M.N.Harakeh, G.G.Kiss, A.Kurihara, M.Yasuda, T.Nakamura, S.Park, Z.Yang, T.Harada, M.Nishimura, H.Sato, I.S.Hahn, K.Y.Chae, J.M.Elson, L.G.Sobotka, C.A.Bertulani

Silicon tracker array for RIB experiments at SAMURAI

doi: 10.1140/epja/s10050-022-00873-w
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2020MA16      Phys.Rev. C 101, 044312 (2020)

S.N.T.Majola, M.A.Sithole, L.Mdletshe, D.Hartley, J.Timar, B.M.Nyako, J.M.Allmond, R.A.Bark, C.Beausang, L.Bianco, T.D.Bucher, S.P.Bvumbi, M.P.Carpenter, C.J.Chiara, N.Cooper, D.M.Cullen, D.Curien, T.S.Dinoko, B.J.P.Gall, P.E.Garrett, P.T.Greenlees, J.Hirvonen, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, B.V.Kheswa, F.G.Kondev, A.Korichi, W.D.Kulp, T.Lauritsen, E.A.Lawrie, L.Makhathini, P.L.Masiteng, B.Maqabuka, E.A.McCutchan, D.Miller, S.Miller, A.Minkova, L.Msebi, S.H.Mthembu, J.Ndayishimye, P.Nieminen, P.Z.Ngcobo, S.S.Ntshangase, J.N.Orce, P.Peura, P.Rahkila, N.Redon, L.L.Riedinger, M.A.Riley, D.G.Roux, P.Ruotsalainen, J.Piot, J.Saren, J.F.Sharpey-Schafer, C.Scholey, O.Shirinda, J.Simpson, J.Sorri, I.Stefanescu, S.Stolze, J.Uusitalo, X.Wang, V.Werner, J.L.Wood, C.-H.Yu, S.Zhu, G.Zimba

First candidates for γ vibrational bands built on the [505] 11/2- neutron orbital in odd-A Dy isotopes

NUCLEAR REACTIONS 155Gd(α, 2n)157Dy, E=25 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization) using the JUROGAM II array at the University of Jyvaskyla. 148Nd(12C, 5n)155Dy, E=65 MeV; 124Sn(36S, 5n)155Dy, E=165 MeV; measured Eγ, Iγ, γγ-coin using GAMMASPHERE array at Argonne National Laboratory. 155,157Dy; deduced high-spin levels, J, π, multipolarities, Kπ=0+ bands, Kπ=2+ γ-vibrational bands, configurations, alignments, B(M1)/B(E2) ratios. 157Dy; calculated neutron quasiparticle Routhians using cranked shell model (CSM). 154,156Dy; discussed first excited 0+ states in the core nuclei. Systematics of level energies versus spin for γ bands in 154,155,156,157,158Dy and 152,153,154,155,156Gd.

doi: 10.1103/PhysRevC.101.044312
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2020ZH02      Phys.Lett. B 801, 135170 (2020), Corrigendum Phys.Lett. B 803, 135278 (2020)

N.T.Zhang, X.Y.Wang, D.Tudor, B.Bucher, I.Burducea, H.Chen, Z.J.Chen, D.Chesneanu, A.I.Chilug, L.R.Gasques, D.G.Ghita, C.Gomoiu, K.Hagino, S.Kubono, Y.J.Li, C.J.Lin, W.P.Lin, R.Margineanu, A.Pantelica, I.C.Stefanescu, M.Straticiuc, X.D.Tang, L.Trache, A.S.Umar, W.Y.Xin, S.W.Xu, Y.Xu

Constraining the 12C+12C astrophysical S-factors with the 12C+13C measurements at very low energies

NUCLEAR REACTIONS 12C(13C, p)24Na, E=4.640-10.995 MeV; measured reaction products, Eγ, Iγ; deduced σ, branching ratio, S-factor.

doi: 10.1016/j.physletb.2019.135170
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0970.


2019WR01      Eur.Phys.J. A 55, 130 (2019)

K.Wrzosek-Lipska, K.Rezynkina, N.Bree, M.Zielinska, L.P.Gaffney, A.Petts, A.Andreyev, B.Bastin, M.Bender, A.Blazhev, B.Bruyneel, P.A.Butler, M.P.Carpenter, J.Cederkall, E.Clement, T.E.Cocolios, A.N.Deacon, J.Diriken, A.Ekstrom, C.Fitzpatrick, L.M.Fraile, Ch.Fransen, S.J.Freeman, J.E.Garcia-Ramos, K.Geibel, R.Gernhauser, T.Grahn, M.Guttormsen, B.Hadinia, K.Hadynska-Klek, M.Hass, P.-H.Heenen, R.-D.Herzberg, H.Hess, K.Heyde, M.Huyse, O.Ivanov, D.G.Jenkins, R.Julin, N.Kesteloot, Th.Kroll, R.Krucken, A.C.Larsen, R.Lutter, P.Marley, P.J.Napiorkowski, R.Orlandi, R.D.Page, J.Pakarinen, N.Patronis, P.J.Peura, E.Piselli, L.Prochniak, P.Rahkila, E.Rapisarda, P.Reiter, A.P.Robinson, M.Scheck, S.Siem, K.Singh Chakkal, J.F.Smith, J.Srebrny, I.Stefanescu, G.M.Tveten, P.Van Duppen, J.Van de Walle, D.Voulot, N.Warr, A.Wiens, J.L.Wood

Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg

NUCLEAR REACTIONS 112Cd(182Hg, 182Hg'), E=519 MeV; 120Sn, 107Ag, 112Cd(184Hg, 184Hg'), E=524 MeV; 120Sn, 107Ag, 114Cd(186Hg, 186Hg'), E=530 MeV; 120Sn, 107Ag, 114Cd(188Hg, 188Hg'), E=536 MeV; measured reaction products, Eγ, Iγ, X-rays. 182,184,186,188Hg; deduced γ-ray energies, J, π, transition E2 and M1 reduced matrix elements, branching ratios, B(E2). Comparison with theoretical calculations, GOSIA analysis. The Miniball set-up, REX postaccelerator.

doi: 10.1140/epja/i2019-12815-2
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2018FO11      Phys.Rev.Lett. 120, 212501 (2018)

A.M.Forney, W.B.Walters, C.J.Chiara, R.V.F.Janssens, A.D.Ayangeakaa, J.Sethi, J.Harker, M.Alcorta, M.P.Carpenter, G.Gurdal, C.R.Hoffman, B.P.Kay, F.G.Kondev, T.Lauritsen, C.J.Lister, E.A.McCutchan, A.M.Rogers, D.Seweryniak, I.Stefanescu, S.Zhu

Novel ΔJ = 1 Sequence in 78Ge: Possible Evidence for Triaxiality

NUCLEAR REACTIONS 238U(76Ge, X)78Ge, E=530 MeV; 198Pt, 208Pb(76Ge, X)78Ge, E=450 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, B(E2). Comparison with available data and calculations.

doi: 10.1103/PhysRevLett.120.212501
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Data from this article have been entered in the XUNDL database. For more information, click here.


2017HA03      Phys.Rev. C 95, 014321 (2017)

D.J.Hartley, L.L.Riedinger, R.V.F.Janssens, S.N.T.Majola, M.A.Riley, J.M.Allmond, C.W.Beausang, M.P.Carpenter, C.J.Chiara, N.Cooper, D.Curien, B.J.P.Gall, P.E.Garrett, F.G.Kondev, W.D.Kulp, T.Lauritsen, E.A.McCutchan, D.Miller, S.Miller, J.Piot, N.Redon, J.F.Sharpey-Schafer, J.Simpson, I.Stefanescu, X.Wang, V.Werner, J.L.Wood, C.-H.Yu, S.Zhu, J.Dudek

Investigation of negative-parity states in 156Dy: Search for evidence of tetrahedral symmetry

NUCLEAR REACTIONS 148Nd(12C, 4n), E=65 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) using GAMMASPHERE array at ATLAS-ANL facility. 156Dy; deduced high-spin levels, J, π, multipolarities, negative-parity bands, alignments, configurations, B(E2)/B(E1) ratios and octupole excitations, no evidence for tetrahedral symmetry. Systematics of Kπ=0-, 3- and Kπ=1-, 4- states in N=90 isotones 152Sm, 154Gd, 156Dy and 160Yb.

doi: 10.1103/PhysRevC.95.014321
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2016CL01      Phys.Rev.Lett. 116, 022701 (2016)

E.Clement, M.Zielinska, A.Gorgen, W.Korten, S.Peru, J.Libert, H.Goutte, S.Hilaire, B.Bastin, C.Bauer, A.Blazhev, N.Bree, B.Bruyneel, P.A.Butler, J.Butterworth, P.Delahaye, A.Dijon, D.T.Doherty, A.Ekstrom, C.Fitzpatrick, C.Fransen, G.Georgiev, R.Gernhauser, H.Hess, J.Iwanicki, D.G.Jenkins, A.C.Larsen, J.Ljungvall, R.Lutter, P.Marley, K.Moschner, P.J.Napiorkowski, J.Pakarinen, A.Petts, P.Reiter, T.Renstrom, M.Seidlitz, B.Siebeck, S.Siem, C.Sotty, J.Srebrny, I.Stefanescu, G.M.Tveten, J.Van de Walle, M.Vermeulen, D.Voulot, N.Warr, F.Wenander, A.Wiens, H.De Witte, K.Wrzosek-Lipska

Spectroscopic Quadrupole Moments in 96, 98Sr: Evidence for Shape Coexistence in Neutron-Rich Strontium Isotopes at N=60

NUCLEAR REACTIONS 109Ag, 120Sn(96Sr, 96Sr'), E=275 MeV;60Ni, 208Pb(98Sr, 98Sr'), E=276 MeV; measured reaction products, Eγ, Iγ. 96,98Sr; deduced B(E2) and B(M1)values, spectroscopic quadrupole moments. Comparison with beyond-mean-field calculations using the Gogny D1S interaction, least squares fitting code GOSIA.

NUCLEAR STRUCTURE 96,98Sr; calculated B(E2) values with the Gogny D1S interaction in a five-dimensional collective Hamiltonian (5DCH) formalism.

doi: 10.1103/PhysRevLett.116.022701
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2016CL03      Phys.Rev. C 94, 054326 (2016)

E.Clement, M.Zielinska, S.Peru, H.Goutte, S.Hilaire, A.Gorgen, W.Korten, D.T.Doherty, B.Bastin, C.Bauer, A.Blazhev, N.Bree, B.Bruyneel, P.A.Butler, J.Butterworth, J.Cederkall, P.Delahaye, A.Dijon, A.Ekstrom, C.Fitzpatrick, C.Fransen, G.Georgiev, R.Gernhauser, H.Hess, J.Iwanicki, D.G.Jenkins, A.C.Larsen, J.Ljungvall, R.Lutter, P.Marley, K.Moschner, P.J.Napiorkowski, J.Pakarinen, A.Petts, P.Reiter, T.Renstrom, M.Seidlitz, B.Siebeck, S.Siem, C.Sotty, J.Srebrny, I.Stefanescu, G.M.Tveten, J.Van de Walle, M.Vermeulen, D.Voulot, N.Warr, F.Wenander, A.Wiens, H.De Witte, K.Wrzosek-Lipska

Low-energy Coulomb excitation of 96, 98Sr beams

NUCLEAR REACTIONS 60Ni, 208Pb(98Sr, 98Sr'), E=276.3 MeV; 109Ag, 120Sn(96Sr, 96Sr'), E=275.5 MeV; measured Eγ, Iγ, scattered Sr ions and target recoils, (particle)γ-coin, γ(θ), differential Coulomb excitation cross sections using Miniball array for γ detection and Si strip detectors for ions at REX-ISOLDE-CERN facility. 96,98Sr; deduced levels, E2 and M1 matrix elements, B(E2) and level half-lives, quadrupole moments and deformation parameters, E0 monopole transition strengths using GOSIA2 analysis. Comparison with previous experimental data and five-dimensional collective Hamiltonian and Gogny D1S force, and using complex excited VAMPIR approach. Systematics of level energies, transitional and spectroscopic quadrupole moments in 94,96Kr, 96,98Sr, 98,100Zr, 100,102Mo. Systematics of energy and B(E2) for first 2+ state, and energies of second 0+ states in 90,92,94,96,98,100,102Sr. 60Ni, 208Pb(98Rb, 98Rb'), E=276 MeV; measured Eγ, Iγ, scattered Rb ions and target recoils, (particle)γ-coin, γ(θ), level half-lives by recoil-distance Doppler shift method. 98Rb; deduced levels.

doi: 10.1103/PhysRevC.94.054326
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2016HO13      Phys.Rev. C 94, 021303 (2016)

S.S.Hota, S.K.Tandel, P.Chowdhury, I.Ahmad, M.P.Carpenter, C.J.Chiara, J.P.Greene, C.R.Hoffman, E.G.Jackson, R.V.F.Janssens, B.P.Kay, T.L.Khoo, F.G.Kondev, S.Lakshmi, S.Lalkovski, T.Lauritsen, C.J.Lister, E.A.McCutchan, K.Moran, D.Peterson, U.Shirwadkar, D.Seweryniak, I.Stefanescu, Y.Toh, S.Zhu

Population and decay of a Kπ = 8- two-quasineutron isomer in 244Pu

NUCLEAR REACTIONS 244Pu(208Pb, 208Pb'), E=1430 MeV; 244Pu(47Ti, 47TI'), E=305 MeV; measured Eγ, Iγ, γγ-coin, M1/E2 branching ratios, prompt and off-beam γ rays, half-life of a 2-qp 8- isomer using Gammasphere array at ATLAS-ANL. 244Pu; deduced high-spin levels, J, π, rotational bands, multipolarity, configurations, kinematic and dynamic moments of inertia, (gk-gR)/Q0, reduced hindrance factors for transitions from the isomer. Comparison with multi-qp calculations using Woods-Saxon potential and Lipkin-Nogami pairing. Systematics of moment of inertia plots and 8- isomers for 244Pu, 250Fm and 252No.

doi: 10.1103/PhysRevC.94.021303
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016IS03      Phys.Rev. C 93, 014303 (2016)

L.W.Iskra, R.Broda, R.V.F.Janssens, C.J.Chiara, M.P.Carpenter, B.Fornal, N.Hoteling, F.G.Kondev, W.Krolas, T.Lauritsen, T.Pawlat, D.Seweryniak, I.Stefanescu, W.B.Walters, J.Wrzesinski, S.Zhu

Shell-model states with seniority ν = 3, 5, and 7 in odd-A neutron-rich Sn isotopes

NUCLEAR REACTIONS 208Pb, 238U(48Ca, X), E=330 MeV; 238U(64Ni, F), E=430 MeV; measured Eγ, Iγ, γγ-coin, delayed γγ-coin, isomer half-lives using Gammasphere array at ATLAS-ANL facility. 115,117,119,121,123,125,127,129Sn; measured yields of reaction products. 119,121,123,125Sn; deduced high-spin levels, J, π, multipolarity, high-seniority states, isomers, B(E1), B(E2), B(M2), B(E3). Comparison with shell model calculations with jj55pn interactions. Systematics of yrast levels and B(Eλ) values for 117,119,121,123,125,127,129Sn. Systematics of B(E2) values for 10+ to 8+ and 19/2+ to 15/2+ isomeric transitions in A=116-130 Sn isotopes.

NUCLEAR STRUCTURE 119,121,123,125,127,129Sn; calculated levels, J, π using shell model with jj55pn interaction. Comparison with experimental spectra.

doi: 10.1103/PhysRevC.93.014303
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2015IS02      Acta Phys.Pol. B46, 651 (2015)

L.W.Iskra, R.Broda, R.V.F.Janssens, J.Wrzesinski, C.J.Chiara, M.P.Carpenter, B.Fornal, N.Hoteling, F.G.Kondev, W.Krolas, T.Lauritsen, T.Pawlat, D.Seweryniak, I.Stefanescu, W.B.Walters, S.Zhu

E2 Transition Probabilities for Decays of Isomers Observed in Neutron-rich Odd Sn Isotopes

NUCLEAR REACTIONS 208Pb, 238U(48Ca, X), 238U(64Ni, X)116Sn/118Sn/120Sn/122Sn/124Sn/126Sn/128Sn/130Sn, E=6.7-6.9 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced high-spin states energy levels, T1/2, B(E2).

doi: 10.5506/APhysPolB.46.651
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2015MA15      Phys.Rev. C 91, 034330 (2015)

S.N.T.Majola, D.J.Hartley, L.L.Riedinger, J.F.Sharpey-Schafer, J.M.Allmond, C.Beausang, M.P.Carpenter, C.J.Chiara, N.Cooper, D.Curien, B.J.P.Gall, P.E.Garrett, R.V.F.Janssens, F.G.Kondev, W.D.Kulp, T.Lauritsen, E.A.McCutchan, D.Miller, J.Piot, N.Redon, M.A.Riley, J.Simpson, I.Stefanescu, V.Werner, X.Wang, J.L.Wood, C.-H.Yu, S.Zhu

Observation of γ vibrations and alignments built on non-ground-state configurations in 156Dy

NUCLEAR REACTIONS 148Nd(12C, 4n), E=65 MeV; measured Eγ, Iγ, multi-fold γγ-coin, γγ(θ)(DCO) using Gammasphere array at ATLAS-ANL facility. 156Dy; deduced high-spin levels, J, π, multipolarities, ground-state, γ- and S-bands, 0+ pairing isomer state, alignments, B(E2) ratios, candidate for an aligned S band built on the second 0+, second vacuum configuration. Systematics of γ band members above 15+ in 104Mo, 154,156,160,162,164Dy, 156,160,164,170Er, 180Hf, 238U.

doi: 10.1103/PhysRevC.91.034330
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2014BR05      Phys.Rev.Lett. 112, 162701 (2014)

N.Bree, K.Wrzosek-Lipska, A.Petts, A.Andreyev, B.Bastin, M.Bender, A.Blazhev, B.Bruyneel, P.A.Butler, J.Butterworth, M.P.Carpenter, J.Cederkall, E.Clement, T.E.Cocolios, A.Deacon, J.Diriken, A.Ekstrom, C.Fitzpatrick, L.M.Fraile, Ch.Fransen, S.J.Freeman, L.P.Gaffney, J.E.Garcia-Ramos, K.Geibel, R.Gernhauser, T.Grahn, M.Guttormsen, B.Hadinia, K.Hadynska-Klek, M.Hass, P.-H.Heenen, R.-D.Herzberg, H.Hess, K.Heyde, M.Huyse, O.Ivanov, D.G.Jenkins, R.Julin, N.Kesteloot, Th.Kroll, R.Krucken, A.C.Larsen, R.Lutter, P.Marley, P.J.Napiorkowski, R.Orlandi, R.D.Page, J.Pakarinen, N.Patronis, P.J.Peura, E.Piselli, P.Rahkila, E.Rapisarda, P.Reiter, A.P.Robinson, M.Scheck, S.Siem, K.Singh Chakkal, J.F.Smith, J.Srebrny, I.Stefanescu, G.M.Tveten, P.Van Duppen, J.Van de Walle, D.Voulot, N.Warr, F.Wenander, A.Wiens, J.L.Wood, M.Zielinska

Shape Coexistence in the Neutron-Deficient Even-Even 182-188Hg Isotopes Studied via Coulomb Excitation

NUCLEAR REACTIONS 120Sn, 107Ag, 112,114Cd(182Hg, 182Hg'), (184Hg, 184Hg'), (186Hg, 186Hg'), (188Hg, 188Hg'), E=2.85 MeV/nucleon; measured reaction products, Eγ, Iγ. 182,184,186,188Hg; deduced energy levels, J, π, nuclear matrix elements, B(E2). Comparison with IBM calculations, experimental data.

doi: 10.1103/PhysRevLett.112.162701
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2014HO16      Phys.Lett. B 739, 13 (2014)

S.S.Hota, P.Chowdhury, T.L.Khoo, M.P.Carpenter, R.V.F.Janssens, Y.Qiu, I.Ahmad, J.P.Greene, S.K.Tandel, D.Seweryniak, S.Zhu, P.F.Bertone, C.J.Chiara, A.Y.Deo, N.D'Olympia, S.Gros, C.J.Guess, T.Harrington, D.J.Hartley, G.Henning, C.R.Hoffman, E.G.Jacksona, F.G.Kondev, S.Lakshmi, T.Lauritsen, C.J.Lister, E.A.McCutchan, K.Moran, C.Nair, D.Peterson, U.Shirwadkar, I.Stefanescu

N=151 Pu, Cm and Cf nuclei under rotational stress: Role of higher-order deformations

NUCLEAR REACTIONS 244Pu, 249Cf(208Pb, X)242Pu/243Pu/244Pu/245Pu/246Pu/248Cf/249Cf/250Cf, 248Cm(209Bi, X)246Cm/247Cm/248Cm/249Cm/250Cm, E not given; measured reaction products, Eγ, Iγ. 245Pu, 247Cm, 249Cf; deduced energy levels, J, π, rotational bands, high-spins, deformations. Comparison with available data, Cranked WS model.

doi: 10.1016/j.physletb.2014.10.021
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2014IL01      Phys.Rev. C 89, 014313 (2014)

S.Ilieva, M.Thurauf, Th.Kroll, R.Krucken, T.Behrens, V.Bildstein, A.Blazhev, S.Bonig, P.A.Butler, J.Cederkall, T.Davinson, P.Delahaye, J.Diriken, A.Ekstrom, F.Finke, L.M.Fraile, S.Franchoo, Ch.Fransen, G.Georgiev, R.Gernhauser, D.Habs, H.Hess, A.M.Hurst, M.Huyse, O.Ivanov, J.Iwanicki, P.Kent, O.Kester, U.Koster, R.Lutter, M.Mahgoub, D.Martin, P.Mayet, P.Maierbeck, T.Morgan, O.Niedermeier, M.Pantea, P.Reiter, T.R.Rodriguez, Th.Rolke, H.Scheit, A.Scherillo, D.Schwalm, M.Seidlitz, T.Sieber, G.S.Simpson, I.Stefanescu, S.Thiel, P.G.Thirolf, J.Van de Walle, P.Van Duppen, D.Voulot, N.Warr, W.Weinzierl, D.Weisshaar, F.Wenander, A.Wiens, S.Winkler

Coulomb excitation of neutron-rich Cd isotopes

NUCLEAR REACTIONS 108Pd(122Cd, 122Cd'), 64Zn, 104Pd(124Cd, 124Cd'), 64Zn(126Cd, 126Cd'), E=2.85 MeV/nucleon, [secondary 122,124,126Cd beams from 238U(p, X), E=1.2 GeV primary reaction]; measured Eγ, Iγ, particle spectra, γγ-, (particle)γ-coin, γ-ray yields, γ(θ), σ(θ), half-life of first 2+ state of 126Cd by DSAM using REXTRAP and EBIS setup, Miniball array for γ rays and DSSDs for particle detection at REX-ISOLDE-CERN facility. 122,124,126Cd; deduced levels, Coulomb-excitation σ, transition and diagonal matrix elements, static quadrupole moments, and B(E2) for first 2+ states. Comparison with shell model and beyond mean field calculations. Discussed onset of collectivity in the vicinity of Z=50 and N=82 shell closures. Systematics of experimental and theoretical values of B(E2) for first 2+ states in A=116-130 even Cd isotopes.

doi: 10.1103/PhysRevC.89.014313
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2014IS04      Phys.Rev. C 89, 044324 (2014)

L.W.Iskra, R.Broda, R.V.F.Janssens, J.Wrzesinski, B.Szpak, C.J.Chiara, M.P.Carpenter, B.Fornal, N.Hoteling, F.G.Kondev, W.Krolas, T.Lauritsen, T.Pawlat, D.Seweryniak, I.Stefanescu, W.B.Walters, S.Zhu

Higher-seniority excitations in even neutron-rich Sn isotopes

NUCLEAR REACTIONS 208Pb, 238U(48Ca, X), E=330 MeV; 238U(64Ni, X), E=430 MeV; measured yields of fusion fission Te and complementary Sm reaction products, distribution of number of evaporated neutrons, Eγ, Iγ, γγ-coin, delayed γγ-coin, isomer half-lives using Gammasphere array at ATLAS-ANL facility. Identification of isotopes by prompt and delayed cross coincidences with γ rays from complementary A=146-156 Sm isotopes. 118,120,122,124,126,128Sn; deduced high-spin levels, J, π, multipolarity, high-seniority states, isomers, B(E1), B(E2), B(E3). Comparison with shell model calculations with jj55pn interactions for 122,124,126,128,130Sn nuclides. Systematics of yrast levels and B(Eλ) for A=116-132 even-even Sn isotopes.

doi: 10.1103/PhysRevC.89.044324
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2013IS04      Acta Phys.Pol. B44, 395 (2013)

L.W.Iskra, R.Broda, J.Wrzesinski, M.P.Carpenter, C.J.Chiara, B.Fornal, N.Hoteling, R.V.F.Janssens, F.G.Kondev, W.Krolas, T.Lauritsen, T.Pawlat, D.Seweryniak, I.Stefanescu, W.B.Walters, S.Zhu

High-seniority Excitations in Even Neutron-rich Sn Isotopes Populated in Fusion-Fission Reactions

NUCLEAR REACTIONS 208Pb, 238U(48Ca, X), E=330 MeV; 238U(64Ni, X), E=430 MeV; measured fusion fission reaction products, Eγ, Iγ, γ-γ-coin. 118,119,120,121,122,123,124,125,126,128Sn; deduced level energies, J, π, high-spin states, long-lived isomers.

doi: 10.5506/APhysPolB.44.395
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2013KO37      Phys.Rev. C 88, 064306 (2013)

T.Kotthaus, P.Reiter, B.Bruyneel, M.Chatzistamatiou, J.Eberth, G.Gersch, H.Hess, I.Stefanescu, N.Warr, D.Weisshaar, A.Wiens, T.Morgan, R.Lutter, W.Schwerdtfeger, P.G.Thirolf, P.Bringel, H.Hubel, A.Neusser-Neffgen

Spectroscopy of excited states in 234U and search for a two-phonon state in 234U

NUCLEAR REACTIONS 235U(d, t), E=11 MeV; measured Eγ, Iγ, triton spectra, γγ-, tγ-coin, using MINIBALL array for γ rays and ΔE-E telescope for tritons at Cologne tandem accelerator facility. 234U; deduced levels, J, π, γ band and octupole band, B(E2) ratios. Discussed 2-phonon states in 234U and 232Th.

doi: 10.1103/PhysRevC.88.064306
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2013SA43      Eur.Phys.J. A 49, 109 (2013)

J.Sauvage, B.Roussiere, J.Genevey, S.Franchoo, A.N.Andreyev, N.Barre, A.Ben Braham, C.Bourgeois, J.-F.Clavelin, H.De Witte, D.V.Fedorov, V.N.Fedoseyev, L.M.Fraile, X.Grave, G.Huber, M.Huyse, P.Kilcher, U.Koster, P.Kunz, S.R.Lesher, B.A.Marsh, I.Mukha, J.Oms, M.G.Porquet, M.Seliverstov, I.Stefanescu, K.Van de Vel, P.Van Duppen, YU.M.Volkov, A.Wojtasiewicz

Decay of 185Tl, 185m+gHg, 189m+gPb and energy location of the 13/2+ isomeric states in 185Hg, 189Pb, 193Po and 197Rn

RADIOACTIVITY 185Hg(β+), (EC), (IT);185Tl, 189Pb(β+), (EC)[from bombarding thick UCx target by 1.4 GeV protons]; measured Eγ, Iγ(t), X-rays, γγ-coin, (time)γ-coin, Xγ-coin using Ge(HP) detectors with COMET-NARVAL system, α-decay of the decay products, Eα, Iα, αγ-coin. 183,185,187,189Hg, 187,189Pb, 191,193,195Po, 195,197,199Rn deduced partial level scheme, J, π, γ transitions, μ. 185Hg, 189Pb, 193Po, 197Rn deduced 13/2+ isomeric states.

doi: 10.1140/epja/i2013-13109-5
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2013TO05      Phys.Rev. C 87, 041304 (2013)

Y.Toh, C.J.Chiara, E.A.McCutchan, W.B.Walters, R.V.F.Janssens, M.P.Carpenter, S.Zhu, R.Broda, B.Fornal, B.P.Kay, F.G.Kondev, W.Krolas, T.Lauritsen, C.J.Lister, T.Pawlat, D.Seweryniak, I.Stefanescu, N.J.Stone, J.Wrzesinski, K.Higashiyama, N.Yoshinaga

Evidence for rigid triaxial deformation at low energy in 76Ge

NUCLEAR REACTIONS 238U(76Ge, 76Ge'), E=530 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array at ATLAS facility in ANL. 76Ge; deduced high-spin levels, bands, multipolarity, mixing ratios, J, π, B(E2), staggering. Comparison with collective- and shell-model calculations. Evidence of rigid triaxial deformation in the low-lying states of 76Ge. Systematics of staggering parameter for γ bands in 74,76,78Se, 76Ge, 76,78,80Kr nuclei.

doi: 10.1103/PhysRevC.87.041304
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2012BA31      Phys.Rev. C 86, 011305 (2012), Erratum Phys.Rev. C 86, 049902 (2012)

T.Baugher, A.Gade, R.V.F.Janssens, S.M.Lenzi, D.Bazin, B.A.Brown, M.P.Carpenter, A.N.Deacon, S.J.Freeman, T.Glasmacher, G.F.Grinyer, F.G.Kondev, S.McDaniel, A.Poves, A.Ratkiewicz, E.A.McCutchan, D.K.Sharp, I.Stefanescu, K.A.Walsh, D.Weisshaar, S.Zhu

Intermediate-energy Coulomb excitation of 58, 60, 62Cr: The onset of collectivity toward N=40

NUCLEAR REACTIONS 197Au(58Cr, 58Cr'), E=81.1 MeV/nucleon; 197Au(60Cr, 60Cr'), E=81.7 MeV/nucleon; 209Bi(62Cr, 62Cr'), E=79.0 MeV/nucleon; measured scattered projectile spectra, energy loss, time-of-flight, Eγ, Iγ, (particle)γ-coin using SeGA array at NSCL facility, integrated cross section, GEANT-4 simulations. Intermediate Coulomb excitation using secondary Cr beams from 9Be(76Ge, X), E=130 MeV/nucleon primary reaction. 58,60,62Cr, 197Au; deduced levels, B(E2) of first 2+ state in Cr nuclei and a level in 197Au, ratio of neutron and proton transition matrix elements Mn/Mp. 62Cr; measured half-life of first 2+ state by Doppler shift and line-shape method. Systematics of energies and B(E2) values of first 2+ states in even-even N=22-40 Ni, Fe and Cr isotopes. Comparison with shell model calculations in the fpgd space using the state-of-the-art LNPS effective interaction.

doi: 10.1103/PhysRevC.86.011305
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2012BA40      Phys.Rev. C 86, 034310 (2012)

C.Bauer, T.Behrens, V.Bildstein, A.Blazhev, B.Bruyneel, J.Butterworth, E.Clement, L.Coquard, J.L.Egido, A.Ekstrom, C.R.Fitzpatrick, C.Fransen, R.Gernhauser, D.Habs, H.Hess, J.Leske, T.Kroll, R.Krucken, R.Lutter, P.Marley, T.Moller, T.Otsuka, N.Patronis, A.Petts, N.Pietralla, T.R.Rodriguez, N.Shimizu, C.Stahl, I.Stefanescu, T.Stora, P.G.Thirolf, D.Voulot, J.van de Walle, N.Warr, F.Wenander, A.Wiens

Prolate shape of 140Ba from a first combined Doppler-shift and Coulomb-excitation measurement at the REX-ISOLDE facility

NUCLEAR REACTIONS 96Mo(140Ba, 140Ba'), [140Ba secondary beam from U(p, X), E=1.4 GeV primary beam], E=392 MeV; measured Eγ, Iγ, (particle)γ-coin, yields in different angular ranges, differential σ(θ), half-life of first 2+ state by DSAM using REX-ISOLDE and MINIBALL setup at ISOLDE-CERN. 140Ba; deduced level, E2 matrix element, B(E2), and static quadrupole moment of first 2+ state. Z=56, A=130=146; systematics of energies and B(E2) of first 2+ states. Comparison with Monte Carlo shell-model approach and beyond-mean-field calculations. Gogny energy density functionals and distribution of probability contours in the triaxial (β, γ) plane for 0+, 2+ and 4+ states first two bands.

NUCLEAR MOMENTS 140Ba; measured static quadrupole moment of first 2+ state by reorientation analysis of Coulomb-excitation yields.

doi: 10.1103/PhysRevC.86.034310
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2012BR15      Phys.Rev. C 86, 064312 (2012)

R.Broda, T.Pawlat, W.Krolas, R.V.F.Janssens, S.Zhu, W.B.Walters, B.Fornal, C.J.Chiara, M.P.Carpenter, N.Hoteling, L.W.Iskra, F.G.Kondev, T.Lauritsen, D.Seweryniak, I.Stefanescu, X.Wang, J.Wrzesinski

Spectroscopic study of the 64, 66, 68Ni isotopes populated in 64Ni+238U collisions

NUCLEAR REACTIONS 238U(64Ni, X), E=430 MeV; measured Eγ, Iγ, γγ(θ), γγ-coin, delayed γγ-coin using Gammasphere array at ANL facility. 64,66,68Ni; deduced levels, J, π. Comparison with shell-model calculations. Quasielastic and deep-inelastic reactions.

NUCLEAR STRUCTURE 64,66,68Ni; calculated levels, J, π, configuration mixtures using large-scale shell-model with jj44b and jun45 interactions.

doi: 10.1103/PhysRevC.86.064312
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2012CH09      Phys.Rev. C 85, 024309 (2012)

C.J.Chiara, I.Stefanescu, W.B.Walters, S.Zhu, R.V.F.Janssens, M.P.Carpenter, R.Broda, B.Fornal, A.A.Hecht, N.Hoteling, E.G.Jackson, B.P.Kay, W.Krolas, T.Lauritsen, E.A.McCutchan, T.Pawlat, D.Seweryniak, X.Wang, A.Wohr, J.Wrzesinski

Core-coupled protons, F7/2 intruder states, and competing G9/2 proton and neutron structures in 65, 67Cu

NUCLEAR REACTIONS 238U(64Ni, X)65Cu/67Cu, E=430 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ) using Gammasphere array and ATLAS facility at ANL. 65,67Cu; deduced levels, J, π, multipolarity, mixing ratios, configurations. Systematics of 7/2- and positive-parity states in A=57-71 Cu isotopes, and 2+ and 5- states in A=56-70 Ni isotopes. Systematics of ground-state bands in 60,66,68,70Zn and compared with those of f7/2- proton bands in 59,65,67,69Cu. Comparison with shell model calculations using JUN45 and jj44b interactions.

doi: 10.1103/PhysRevC.85.024309
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2012ZH08      Phys.Rev. C 85, 034336 (2012)

S.Zhu, R.V.F.Janssens, M.P.Carpenter, C.J.Chiara, R.Broda, B.Fornal, N.Hoteling, W.Krolas, T.Lauritsen, T.Pawlat, D.Seweryniak, I.Stefanescu, J.R.Stone, W.B.Walters, X.Wang, J.Wrzesinski

Nature of yrast excitations near N=40: Level structure of 67Ni

NUCLEAR REACTIONS 238U(64Ni, X), E=430 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ), γγ(t) using Gammasphere array at ATLAS facility. 67Ni; deduced high-spin levels, J, π, half-life, multipolarity, mixing ratio, configurations. Comparison with shell-model calculations. 64Ni; measured Eγ; deduced levels.

doi: 10.1103/PhysRevC.85.034336
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2011CH42      Phys.Rev. C 84, 037304 (2011)

C.J.Chiara, W.B.Walters, I.Stefanescu, M.Alcorta, M.P.Carpenter, B.Fornal, G.Gurdal, C.R.Hoffman, R.V.F.Janssens, B.P.Kay, F.G.Kondev, W.Krolas, T.Lauritsen, C.J.Lister, E.A.McCutchan, T.Pawlat, A.M.Rogers, D.Seweryniak, N.Sharp, J.Wrzesinski, S.Zhu

Seniority, collectivity, and B(E2) enhancement in 72Ni

NUCLEAR REACTIONS 238U(76Ge, X), E=530 MeV; 198Pt, 208Pb(76Ge, X), E=450 MeV; measured Eγ, Iγ, γγ-coin, isomer half-life using Gammasphere array. 72Ni; deduced levels, J, π, B(E2). Comparison with shell-model calculations, and level systematics of 70,76Ni.

doi: 10.1103/PhysRevC.84.037304
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2011CL03      Int.J.Mod.Phys. E20, 415 (2011)

E.Clement, G.De France, J.M.Casandjian, A.Gorgen, W.Korten, E.Bouchez, A.Chatillon, A.Hurstel, Y.Le Coz, A.Obertelli, C.Theisen, J.N.Wilson, J.-P.Delaroche, M.Girod, H.Goutte, S.Peru, T.Czosnyka, J.Iwanicki, P.J.Napiorkowski, J.Srebrny, K.Wrzosek-Lipska, M.Zielinska, N.Bree, I.Stefanescu, J.Van De Walle, C.Andreoiu, P.A.Butler, R.-D.Herzberg, D.G.Jenkins, G.D.Jones, A.Petts, F.Becker, J.Gerl, W.N.Catford, C.N.Timis, G.Sletten, G.Georgiev, J.Ljungvall

Experimental measurement of the deformation through the electromagnetic probe: shape coexistence in exotic Kr and Sr isotopes

NUCLEAR REACTIONS 208Pb(72Kr, 72Kr'), (74Kr, 74Kr'), (76Kr, 76Kr'), (78Kr, 78Kr'), E=4.5 MeV/nucleon; 109Ag, 120Sn(96Sr, 96Sr'), E not given; measured reaction products, Eγ, Iγ. 72,74,76,78Kr, 96Sr; deduced static quadrupole moments, B(E2). Comparison with systematics and HFB calculations.

doi: 10.1142/S0218301311017806
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2011HA25      Phys.Rev. C 83, 064307 (2011)

D.J.Hartley, R.V.F.Janssens, L.L.Riedinger, M.A.Riley, X.Wang, A.Aguilar, M.P.Carpenter, C.J.Chiara, P.Chowdhury, I.G.Darby, U.Garg, Q.A.Ijaz, F.G.Kondev, S.Lakshmi, T.Lauritsen, A.Ludington, W.C.Ma, E.A.McCutchan, S.Mukhopadhyay, R.Pifer, E.P.Seyfried, U.Shirwadkar, I.Stefanescu, S.K.Tandel, J.R.Vanhoy, S.Zhu, S.Frauendorf

Rotational structures and the wobbling mode in 167Ta

NUCLEAR REACTIONS 120Sn(51V, 4n), E=235 MeV; measured Eγ, Iγ, γγ-coin γγ(θ) using Gammasphere array. 167Ta; deduced levels, J, π, multipolarity, B(M1)/B(E2), rotational bands, alignments, band crossing frequencies, band configurations. Comparison with particle-rotor model calculations, and trends in the wobbling phonon energies in 161,163,165,167Lu, and 167Ta.

doi: 10.1103/PhysRevC.83.064307
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2011RA42      Phys.Rev. C 84, 064323 (2011)

E.Rapisarda, I.Stefanescu, D.L.Balabanski, B.Bastin, A.Blazhev, N.Bree, M.Danchev, B.Bruyneel, T.Davinson, P.Delahaye, J.Diriken, J.Eberth, G.Georgiev, D.Fedorov, V.N.Fedosseev, E.Fiori, S.Franchoo, Ch.Fransen, K.Geibel, K.Gladnishki, K.Hadynska, H.Hess, K.Heyde, M.Huyse, O.Ivanov, J.Iwanicki, J.Jolie, M.Kalkuehler, Th.Kroll, R.Krucken, U.Koster, G.Lo Bianco, R.Lozeva, B.A.Marsh, S.Nardelli, F.Nowacki, N.Patronis, P.Reiter, M.Seidlitz, K.Sieja, N.Smirnova, J.Srebrny, J.Van de Walle, P.Van Duppen, N.Warr, F.Wenander, K.Wimmer, K.Wrzosek, S.Zemlyanoi, M.Zielinska

Coulomb excitation of the 3- isomer in 70Cu

NUCLEAR REACTIONS 120Sn(70Cu, 70Cu'), [3- and 6- 70Cu beams from U(p, X), E=1.4 GeV], E=2.8 MeV/nucleon; measured Eγ, Iγ, γγ-coin, particle spectra of scattered projectile and recoiling target nuclei, particle-γ coin. 70Cu; deduced levels, J, π, transition matrix elements, B(E2), configurations. On-Line Isotope Mass Separator (CERN-ISOLDE) facility. Comparison with shell model calculations and with B(E2) values in 68,72Cu.

doi: 10.1103/PhysRevC.84.064323
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2011RO20      Phys.Rev. C 83, 064311 (2011)

A.P.Robinson, T.L.Khoo, D.Seweryniak, I.Ahmad, M.Asai, B.B.Back, M.P.Carpenter, P.Chowdhury, C.N.Davids, J.Greene, P.T.Greenlees, K.Hauschild, A.Heinz, R.-D.Herzberg, R.V.F.Janssens, D.G.Jenkins, G.D.Jones, S.Ketelhut, F.G.Kondev, T.Lauritsen, C.J.Lister, A.Lopez-Martens, P.Marley, E.McCutchan, P.Papadakis, D.Peterson, J.Qian, D.Rostron, U.Shirwadkar, I.Stefanescu, S.K.Tandel, X.Wang, S.Zhu

Search for a 2-quasiparticle high-K isomer in 256Rf

NUCLEAR STRUCTURE 256Rf; calculated ground state and rotational band energies, configurations using Woods-Saxon Potential.

NUCLEAR REACTIONS 208Pb(50Ti, 2n), E=240 MeV; measured Eγ, Iγ, ce, γγ-, γ(ce)-coin, γ(t), half-life. 256Rf; deduced levels, J, π, isomers, configurations; calculated energies of two-quasiparticle high-K isomers with the universal Woods-Saxon energies. 170Er(50Ti, 4n)216Th, E=222 MeV; measured Eγ, ce, γ(ce)-coin from isomer, half-life, isomer ratio; used as a test case.

doi: 10.1103/PhysRevC.83.064311
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2011SE05      Phys.Lett. B 700, 181 (2011)

M.Seidlitz, D.Mucher, P.Reiter, V.Bildstein, A.Blazhev, N.Bree, B.Bruyneel, J.Cederkall, E.Clement, T.Davinson, P.Van Duppen, A.Ekstrom, F.Finke, L.M.Fraile, K.Geibel, R.Gernhauser, H.Hess, A.Holler, M.Huyse, O.Ivanov, J.Jolie, M.Kalkuhler, T.Kotthaus, R.Krucken, R.Lutter, E.Piselli, H.Scheit, I.Stefanescu, J.Van de Walle, D.Voulot, N.Warr, F.Wenander, A.Wiens

Coulomb excitation of 31Mg

NUCLEAR REACTIONS 109Ag(31Mg, 31Mg'), E=3 MeV/nucleon; measured reaction products, Eγ, Iγ. 31Mg; deduced energy levels, J, π, B(E2), B(M1). Comparison with theoretical predictions.

doi: 10.1016/j.physletb.2011.05.009
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2010CH51      Phys.Rev. C 82, 054313 (2010)

C.J.Chiara, I.Stefanescu, N.Hoteling, W.B.Walters, R.V.F.Janssens, R.Broda, M.P.Carpenter, B.Fornal, A.A.Hecht, W.Krolas, T.Lauritsen, T.Pawlat, D.Seweryniak, X.Wang, A.Wohr, J.Wrzesinski, S.Zhu

Influence of the νg9/2 orbital on level structures of neutron-rich 61, 62Mn36, 37

NUCLEAR REACTIONS 238U(64Ni, X)61Mn/62Mn, E=430 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array. 61,62Mn; deduced levels, J, π. Comparison with level structures of 53,55,57,59,58,60,64Mn.

doi: 10.1103/PhysRevC.82.054313
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2010CR02      Phys.Rev. C 82, 014311 (2010)

H.L.Crawford, R.V.F.Janssens, P.F.Mantica, J.S.Berryman, R.Broda, M.P.Carpenter, N.Cieplicka, B.Fornal, G.F.Grinyer, N.Hoteling, B.P.Kay, T.Lauritsen, K.Minamisono, I.Stefanescu, J.B.Stoker, W.B.Walters, S.Zhu

β decay and isomeric properties of neutron-rich Ca and Sc isotopes

RADIOACTIVITY 53,54,55,56,57Sc, 53,54Ca(β-); 54,56Sc(IT)[from Be(76Ge, X), E=130 MeV/nucleon]; measured Eγ, Iγ, (fragment)β-, γγ-, βγ-, (fragment)βγ-coin, half-lives. 53,54,55,56,57Ti, 53,54,56Sc; deduced levels, J, π, logft, configurations. Comparison with GXPF1 shell-model calculations. 54Ti(β-); measured half-life. 54,55,56Sc(β-n); deduced %β--n.

NUCLEAR STRUCTURE 52,54,56Sc; calculated levels, J, π using GXPF1 shell-model.

NUCLEAR REACTIONS Be(76Ge, X)52Ca/53Ca/54Ca/53Sc/54Sc/55Sc/56Sc/55Ti/56Ti/57Ti/58Ti/57V/58V/59V/60V/, E=130 MeV/nucleon; measured yields.

doi: 10.1103/PhysRevC.82.014311
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2010DI14      Phys.Rev. C 82, 064309 (2010)

J.Diriken, I.Stefanescu, D.Balabanski, N.Blasi, A.Blazhev, N.Bree, J.Cederkall, T.E.Cocolios, T.Davinson, J.Eberth, A.Ekstrom, D.V.Fedorov, V.N.Fedosseev, L.M.Fraile, S.Franchoo, G.Georgiev, K.Gladnishki, M.Huyse, O.V.Ivanov, V.S.Ivanov, J.Iwanicki, J.Jolie, T.Konstantinopoulos, Th.Kroll, R.Krucken, U.Koster, A.Lagoyannis, G.Lo Bianco, P.Maierbeck, B.A.Marsh, P.Napiorkowski, N.Patronis, D.Pauwels, P.Reiter, M.Seliverstov, G.Sletten, J.Van de Walle, P.Van Duppen, D.Voulot, W.B.Walters, N.Warr, F.Wenander, K.Wrzosek

Coulomb excitation of 73Ga

NUCLEAR REACTIONS 104Pd(71Ga, 71Ga'), 120Sn(73Ga, 73Ga'), E=2.95 MeV/nucleon, [secondary 71,73Ga beams from U(p, X), E=1 GeV]; measured Eγ, Iγ, (particle)γ-, γγ-coin at REX-ISOLDE. 71Ga, 73Ga; deduced levels, J, π, B(E2). Comparison with level systematics of 63,65,67,69,71,73,75,77Ga. Collectivity due to g9/2 neutron orbital.

RADIOACTIVITY 73Zn(β-)[from U(p, X), E=1 GeV]; measured Eγ.

doi: 10.1103/PhysRevC.82.064309
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2010DR02      Phys.Rev. C 81, 054313 (2010)

G.D.Dracoulis, G.J.Lane, F.G.Kondev, H.Watanabe, D.Seweryniak, S.Zhu, M.P.Carpenter, C.J.Chiara, R.V.F.Janssens, T.Lauritsen, C.J.Lister, E.A.McCutchan, I.Stefanescu

Two-quasiparticle structures and isomers in 168Er, 170Er, and 172Er

NUCLEAR REACTIONS 170Er(136Xe, X)168Er/170Er/172Er, E=830 MeV; measured Eγ, Iγ, γγ, γγ(t), and isomer half-lives using Gammasphere array. 168,170,172Er; deduced levels, J, π, rotational bands, multipolarities, B(E1), B(M1), B(E2), K-hindrance factors, configurations, quasiparticle structures, and gK-gR.

doi: 10.1103/PhysRevC.81.054313
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2010DR05      Phys.Rev. C 82, 034317 (2010)

G.D.Dracoulis, G.J.Lane, R.O.Hughes, F.G.Kondev, H.Watanabe, D.Seweryniak, S.Zhu, M.P.Carpenter, C.J.Chiara, R.V.F.Janssens, T.Lauritsen, C.J.Lister, E.A.McCutchan, I.Stefanescu, P.Chowdhury

Structure of three-quasiparticle isomers in 169Ho and 171Tm

NUCLEAR REACTIONS 170Er(136Xe, X), E=830 MeV; measured Eγ, Iγ, γγ-coin, delayed spectra, half-lives and branching ratios using Gammasphere array. 169Ho, 171Tm; deduced levels, J, π, isomer, transition strengths and hindrances, gK-gR values, bands and quasiparticle configurations.

doi: 10.1103/PhysRevC.82.034317
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2010EK01      Eur.Phys.J. A 44, 355 (2010)

A.Ekstrom, J.Cederkall, C.Fahlander, M.Hjorth-Jensen, T.Engeland, A.Blazhev, P.A.Butler, T.Davinson, J.Eberth, F.Finke, A.Gorgen, M.Gorska, A.M.Hurst, O.Ivanov, J.Iwanicki, U.Koster, B.A.Marsh, J.Mierzejewski, P.Reiter, S.Siem, G.Sletten, I.Stefanescu, G.M.Tveten, J.Van de Walle, D.Voulot, N.Warr, D.Weisshaar, F.Wenander, M.Zielinska

Coulomb excitation of the odd-odd isotopes 106, 108In

NUCLEAR REACTIONS 58Ni(106In, 106In'), (108In, 108In'), E=2.8 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin following Coulomb excitation at the REX-ISOLDE facility. 106,108In; deduced levels, J, π, B(E2); calculated low-lying level properties, E2, M1 matrix elements using shell model plus coupled channels.

doi: 10.1140/epja/i2010-10945-7
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2010HA26      Phys.Rev. C 82, 057302 (2010)

D.J.Hartley, R.V.F.Janssens, L.L.Riedinger, M.A.Riley, X.Wang, A.Aguilar, M.P.Carpenter, C.J.Chiara, P.Chowdhury, I.G.Darby, U.Garg, Q.A.Ijaz, F.G.Kondev, S.Lakshmi, T.Lauritsen, W.C.Ma, E.A.McCutchan, S.Mukhopadhyay, E.P.Seyfried, U.Shirwadkar, I.Stefanescu, S.K.Tandel, J.R.Vanhoy, S.Zhu

Band crossings in 166Ta

NUCLEAR REACTIONS 120Sn(51V, 5n), E=235 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array. 166Ta; deduced levels, J, π, rotational bands, alignments and B(M1)/B(E2) ratios. Comparison of alignments with those in 165Hf bands. Comparison with theoretical B(M1)/B(E2) ratios.

doi: 10.1103/PhysRevC.82.057302
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2010HU02      Phys.Rev. C 81, 014312 (2010)

A.M.Hurst, C.Y.Wu, M.A.Stoyer, D.Cline, A.B.Hayes, S.Zhu, M.P.Carpenter, K.Abu Saleem, I.Ahmad, J.A.Becker, C.J.Chiara, J.P.Greene, R.V.F.Janssens, T.L.Khoo, F.G.Kondev, T.Lauritsen, C.J.Lister, G.Mukherjee, S.V.Rigby, D.Seweryniak, I.Stefanescu

Rotational alignments in 235Np and the possible role of j15/2 neutrons

NUCLEAR REACTIONS 237Np(116Sn, 118Sn)235Np, E=801 MeV; measured Eγ, Iγ, γγ-, (particle)γ-, (fragment)( fragment)γ-coin, and angular distribution of γ-ray yields for 116Sn, 117Sn and 118Sn using the Gammasphere and CHICO arrays. 235Np; deduced levels, J, π, bands, angular momentum, moment of inertia as functions of rotational frequency, configurations. 116,117,118Sn; measured Eγ, γγ-coin. Comparison with cranked shell-model calculations and with alignment plots for 237Np and 241Am.

doi: 10.1103/PhysRevC.81.014312
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2010LA16      Phys.Rev. C 82, 051304 (2010)

G.J.Lane, G.D.Dracoulis, F.G.Kondev, R.O.Hughes, H.Watanabe, A.P.Byrne, M.P.Carpenter, C.J.Chiara, P.Chowdhury, R.V.F.Janssens, T.Lauritsen, C.J.Lister, E.A.McCutchan, D.Seweryniak, I.Stefanescu, S.Zhu

Structure of neutron-rich tungsten nuclei and evidence for a 10- isomer in 190W

NUCLEAR REACTIONS 186W, 192Os(136Xe, X), E=840 MeV pulsed beam; measured Eγ, Iγ, prompt and delayed γ spectra, γγ-coin, γγ(t), half-lives. 188W, 190W; deduced levels, J, π, isomers, internal conversion coefficients, multipolarity, configurations, transition strengths, K-hindrances. 186,188,190W; systematics of calculated two-particle states.

doi: 10.1103/PhysRevC.82.051304
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2010SE10      Nucl.Phys. A834, 357c (2010)

D.Seweryniak, T.L.Khoo, I.Ahmad, F.G.Kondev, A.Robinson, S.K.Tandel, M.Asai, B.B.Back, M.P.Carpenter, P.Chowdhury, C.N.Davids, S.Eeckhaudt, J.P.Greene, P.T.Greenlees, S.Gros, K.Hauschild, A.Heinz, R.-D.Herzberg, R.V.F.Janssens, D.G.Jenkins, G.D.Jones, S.Ketelhut, T.Lauritsen, C.J.Lister, A.Lopez-Martens, P.Marley, E.A.McCutchan, T.Nakatsukasa, P.Papadakis, D.Peterson, J.Qian, D.Rostron, I.Stefanescu, U.S.Tandel, X.F.Wang, S.F.Zhu

Bridging the nuclear structure gap between stable and super heavy nuclei

NUCLEAR STRUCTURE 249Bk; calculated single-proton energies using different interactions; 252,254No, 256,257Rf; deduced configurations. Comparison with data.

doi: 10.1016/j.nuclphysa.2010.01.039
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2010WA36      Phys.Rev. C 82, 034315 (2010)

X.Wang, D.J.Hartley, M.A.Riley, L.L.Riedinger, A.Aguilar, M.P.Carpenter, C.J.Chiara, P.Chowdhury, I.Darby, U.Garg, Q.Ijaz, R.V.F.Janssens, F.G.Kondev, S.Lakshmi, T.Lauritsen, W.C.Ma, E.A.McCutchan, S.Mukhopadhyay, E.P.Seyfried, I.Stefanescu, S.K.Tandel, U.S.Tandel, C.Teal, J.R.Vanhoy, S.Zhu

Multi-quasiparticle structures up to spin ∼ 44h in the odd-odd nucleus 168Ta

NUCLEAR REACTIONS 120Sn(51V, 3n), E=235 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array. 168Ta, deduced levels, J, π, B(M1)/B(E2) values, energy staggerings of signature partners, alignments, two-quasiparticle bands, configurations. Comparisons with cranked shell model calculations, and with band structures of 162,164,166Tm, 164,166,169Lu, 167Hf and 166,167,170Ta.

doi: 10.1103/PhysRevC.82.034315
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2009AR04      Acta Phys.Pol. B40, 437 (2009)

O.Arndt, S.Hennrich, N.Hoteling, C.J.Jost, B.E.Tomlin, J.Shergur, K.-L.Kratz, P.F.Mantica, B.A.Brown, R.V.F.Janssens, W.B.Walters, B.Pfeiffer, A.Wohr, S.Zhu, R.Broda, M.P.Carpenter, B.Fornal, A.A.Hecht, W.Krolas, T.Lauritsen, T.Pawlat, J.Pereira, D.Seweryniak, I.Stefanescu, J.R.Stone, J.Wrzesinski

Structure of Neutron-Rich Odd-Mass 127, 129, 131In Populated in the Decay of 127, 129, 131Cd

RADIOACTIVITY 127,129,131Cd(β-); measured Iγ, Eγ; deduced Jπ, level scheme. Comparison with calculations.


2009CR03      Acta Phys.Pol. B40, 481 (2009)

H.L.Crawford, R.V.F.Janssens, P.F.Mantica, J.S.Berryman, R.Broda, M.P.Carpenter, B.Fornal, G.F.Grinyer, N.Hoteling, B.Kay, T.Lauritsen, K.Minamisono, I.Stefanescu, J.B.Stoker, W.B.Walters, S.Zhu

β Decay Studies of Neutron-Rich Nuclei Near 52Ca

RADIOACTIVITY 54Sc, 50K, 53Ca(β-);measured Eγ, Iγ;deduced level scheme, Jπ, isomeric transitions.

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2009DR06      Phys.Rev. C 79, 061303 (2009)

G.D.Dracoulis, G.J.Lane, F.G.Kondev, H.Watanabe, D.Seweryniak, S.Zhu, M.P.Carpenter, C.J.Chiara, R.V.F.Janssens, T.Lauritsen, C.J.Lister, E.A.McCutchan, I.Stefanescu

Lifetime of the Kπ = 8- isomer in the neutron-rich nucleus 174Er, and N = 106 E1 systematics

NUCLEAR REACTIONS 176Yb(136Xe, X), E=840 MeV; measured Eγ, Iγ, γγ-coin, isomer half-life. 174Er; deduced levels, J, π, E1 hindrance factors, configurations. Discussed systematics of E1 hindrance factors and E(4+)/E(2+) for even-even Er, Yb, Hf, W, Os, Pt, Hg and Pb nuclides. K-mixing calculations in the framework of particle-rotor model.

doi: 10.1103/PhysRevC.79.061303
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2009EK01      Phys.Rev. C 80, 054302 (2009)

A.Ekstrom, J.Cederkall, D.D.DiJulio, C.Fahlander, M.Hjorth-Jensen, A.Blazhev, B.Bruyneel, P.A.Butler, T.Davinson, J.Eberth, C.Fransen, K.Geibel, H.Hess, O.Ivanov, J.Iwanicki, O.Kester, J.Kownacki, U.Koster, B.A.Marsh, P.Reiter, M.Scheck, B.Siebeck, S.Siem, I.Stefanescu, H.K.Toft, G.M.Tveten, J.Van de Walle, D.Voulot, N.Warr, D.Weisshaar, F.Wenander, K.Wrzosek, M.Zielinska

Electric quadrupole moments of the 2+1 states in 100, 102, 104Cd

NUCLEAR REACTIONS 109Ag(100Cd, 100Cd'), E=287.0 MeV; 64Zn, 109Ag(102Cd, 102Cd'), E=292.7 MeV; 64Zn, 109Ag(104Cd, 104Cd'), E=298.7 MeV; measured Eγ, Iγ, γ(particle)-coin, and γ-ray yields using REX-ISOLDE facility. 64Zn, 100,102,104Cd, 109Ag; deduced levels, J, π, E2 matrix elements, electric quadrupole moments. Comparison with shell model calculations.

NUCLEAR MOMENTS 100,102,104Cd; measured electric quadrupole moments of first 2+ states using reorientation method in Coulomb excitation. Comparison with shell model calculations.

doi: 10.1103/PhysRevC.80.054302
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2009HA15      Acta Phys.Pol. B40, 523 (2009)

J.H.Hamilton, Y.X.Luo, S.J.Zhu, J.O.Rasmussen, A.V.Ramayya, C.Goodin, K.Li, J.K.Hwang, S.Liu, D.Almehed, S.Frauendorf, V.Dimitrov, Jing-ye Zhang, X.L.Che, Z.Jang, I.Stefanescu, A.Gelberg, G.M.Ter-Akopian, A.V.Daniel, I.Y.Lee, H.-B.Ding, R.Q.Xu, J.-G.Wang, Q.Xu, M.A.Stoyer, R.Donangelo, N.J.Stone

New Band Structures in Neutron-Rich Mo and Ru Isotopes


2009HA33      Phys.Rev. C 80, 041304 (2009); Publishers Note, Phys.Rev. C 80, 059901 (2009)

D.J.Hartley, R.V.F.Janssens, L.L.Riedinger, M.A.Riley, A.Aguilar, M.P.Carpenter, C.J.Chiara, P.Chowdhury, I.G.Darby, U.Garg, Q.A.Ijaz, F.G.Kondev, S.Lakshmi, T.Lauritsen, A.Ludington, W.C.Ma, E.A.McCutchan, S.Mukhopadhyay, R.Pifer, E.P.Seyfried, I.Stefanescu, S.K.Tandel, U.Tandel, J.R.Vanhoy, X.Wang, S.Zhu, I.Hamamoto, S.Frauendorf

Wobbling mode in 167Ta

NUCLEAR REACTIONS 120Sn(51V, 4n), E=235 MeV; measured Eγ, Iγ, γγ-coin and γγ(θ) using Gammasphere array. 167Ta; deduced levels, J, π, triaxial superdeformed bands, normal deformed bands, dynamic moments of inertia, alignments and rotational frequency. Comparison with ultimate cranked (UC) calculations.

doi: 10.1103/PhysRevC.80.041304
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2009KA22      Phys.Rev. C 80, 017301 (2009)

B.P.Kay, C.J.Chiara, J.P.Schiffer, F.G.Kondev, S.Zhu, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, E.A.McCutchan, D.Seweryniak, I.Stefanescu

Properties of excited states in 77Ge

NUCLEAR REACTIONS 76Ge(13C, 12C), E=27-36 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), relative σ. 77Ge; deduced levels, J, π, multipolarity. Comparison of measured σ with DWBA calculations.

doi: 10.1103/PhysRevC.80.017301
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2009LA17      Phys.Rev. C 80, 024321 (2009)

G.J.Lane, G.D.Dracoulis, A.P.Byrne, R.O.Hughes, H.Watanabe, F.G.Kondev, C.J.Chiara, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, E.A.McCutchan, D.Seweryniak, S.Zhu, P.Chowdhury, I.Stefanescu

Decay of a Kπ = 21/2-, 17-ms isomer in 185Ta

NUCLEAR REACTIONS 186W(136Xe, X)185Ta, E=840 MeV; measured Eγ, Iγ, γγ-coin and half-lives. 185Ta; deduced levels, J, π, isomer, mixing ratios, bands and configurations, transition rates and other rotational-model characteristics, K-allowed E1 and K-forbidden transitions.

doi: 10.1103/PhysRevC.80.024321
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2009LU01      Phys.Lett. B 670, 307 (2009); Erratum Phys.Lett. B 691, 285 (2010)

Y.X.Luo, S.J.Zhu, J.H.Hamilton, J.O.Rasmussen, A.V.Ramayya, C.Goodin, K.Li, J.K.Hwang, D.Almehed, S.Frauendorf, V.Dimitrov, Jing-ye Zhang, X.L.Che, Z.Jang, I.Stefanescu, A.Gelberg, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, J.D.Cole, N.J.Stone

Evolution of chirality from γ soft 108Ru to triaxial 110, 112Ru

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 108,110,112Ru; deduced levels, J, π, rotational bands, B(E2)/B(M1). Tilted axis cranking and RPA calculations.

doi: 10.1016/j.physletb.2008.10.067
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2009LU04      Nucl.Phys. A818, 121 (2009)

Y.X.Luo, J.H.Hamilton, J.O.Rasmussen, A.V.Ramayya, C.Goodin, S.J.Zhu, J.K.Hwang, K.Li, D.Fong, I.Stefanescu, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole

New level schemes and octupole correlations of light neutron-rich lanthanum isotopes 143, 144La

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin and fission yield ratios of 103,104,105Nb, 143,144La using Gammasphere. 143,144La deduced levels, J, π, band configurations, branching ratios, B(E1)/B(E2) ratios. Cranked-shell model calculations.

doi: 10.1016/j.nuclphysa.2008.12.004
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2009LU11      Nucl.Phys. A825, 1 (2009)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, C.Goodin, S.J.Zhu, J.K.Hwang, K.Li, D.Fong, I.Stefanescu, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole

The first observation of a deformed Kπ = 1+ ground-state band in 100Nb and the high-spin level scheme of its 4n fission partner 148La

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 100Nb, 148La; deduced ICCs, high-spin levels, J, π, rotational bands, multipolarities, shape coexistence and configurations.

doi: 10.1016/j.nuclphysa.2009.04.006
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2009MC02      Phys.Rev.Lett. 103, 192501 (2009)

E.A.McCutchan, C.J.Lister, R.B.Wiringa, Steven C.Pieper, D.Seweryniak, J.P.Greene, M.P.Carpenter, C.J.Chiara, R.V.F.Janssens, T.L.Khoo, T.Lauritsen, I.Stefanescu, S.Zhu

Precise Electromagnetic Tests of Ab Initio Calculations of Light Nuclei: States in 10Be

NUCLEAR REACTIONS 7Li(7Li, α)10Be, E=8, 10 MeV; measured Eγ, Iγ; deduced lifetime, B(E2) values for 10Be. DSAM technique, comparison with ab initio calculations.

doi: 10.1103/PhysRevLett.103.192501
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2009PA16      Phys.Rev. C 79, 044309 (2009)

D.Pauwels, O.Ivanov, N.Bree, J.Buscher, T.E.Cocolios, M.Huyse, Yu.Kudryavtsev, R.Raabe, M.Sawicka, J.Van de Walle, P.Van Duppen, A.Korgul, I.Stefanescu, A.A.Hecht, N.Hoteling, A.Wohr, W.B.Walters, R.Broda, B.Fornal, W.Krolas, T.Pawlat, J.Wrzesinski, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, D.Seweryniak, S.Zhu, J.R.Stone, X.Wang

Structure of 65, 67Co studied through the β decay of 65, 67Fe and a deep-inelastic reaction

RADIOACTIVITY 65,65mFe, 65Co, 67Fe(β-)[from 238U(p, F), E=30 MeV]; measured Eγ, Iγ, γγ-, βγ-coin, half-lives. 65Co, 65Ni, 67Co; deduced levels, J, π, configurations. 61,63,65Co; level systematics. Interpretation in terms of core coupled states with proton intruder orbitals.

NUCLEAR REACTIONS 238U(64Ni, X), E=430 MeV; measured Eγ, Iγ, γγ-coin. 65Co; deduced levels, J, π, configurations.

doi: 10.1103/PhysRevC.79.044309
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2009RA33      Phys.Rev. C 80, 054307 (2009)

R.Raabe, J.Buscher, J.Ponsaers, F.Aksouh, M.Huyse, O.Ivanov, S.R.Lesher, I.Mukha, D.Pauwels, M.Sawicka, D.Smirnov, I.Stefanescu, J.Van de Walle, P.Van Duppen, C.Angulo, J.Cabrera, N.de Sereville, I.Martel, A.M.Sanchez-Benitez, C.Aa.Diget

Measurement of the branching ratio of the 6He β-decay channel into the α+d continuum

RADIOACTIVITY 6He(β-) [from 7Li(p, 2p), E=30 MeV]; measured β- and, α+d spectra, half-life, and transition probability as function of the center-of-mass energy for the α+d branch of the decay of 6He; deduced α+d branching ratio. 6He ions of 7.9 MeV implanted in highly segmented silicon detector.

doi: 10.1103/PhysRevC.80.054307
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2009SA09      Eur.Phys.J. A 39, 33 (2009)

J.Sauvage, J.Genevey, B.Roussiere, S.Franchoo, A.N.Andreyev, N.Barre, J.-F.Clavelin, H.De Witte, D.V.Fedorov, V.N.Fedoseyev, L.M.Fraile, X.Grave, G.Huber, M.Huyse, H.B.Jeppesen, U.Koster, P.Kunz, S.R.Lesher, B.A.Marsh, I.Mukha, J.Oms, M.Seliverstov, I.Stefanescu, K.Van de Vel, J.Van de Walle, P.Van Duppen, Yu.M.Volkov

Nuclear structure of 189Tl states studied via β+ /EC decay and laser spectroscopy of 189m+gPb

RADIOACTIVITY 189Pb(β+), (EC) [from 238U(p, X), E=1.4 GeV]; measured prompt and delayed Eγ, Iγ, γγ-coin; deduced T1/2, log ft; calculated nuclear deformation. 189Tl deduced levels, J, π. In-source laser spectroscopy.

doi: 10.1140/epja/i2008-10693-3
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2009SE13      Eur.Phys.J. A 41, 315 (2009)

M.D.Seliverstov, A.N.Andreyev, N.Barre, A.E.Barzakh, S.Dean, H.De Witte, D.V.Fedorov, V.N.Fedoseyev, L.M.Fraile, S.Franchoo, J.Genevey, G.Huber, M.Huyse, U.Koster, P.Kunz, S.R.Lesher, B.A.Marsh, I.Mukha, B.Roussiere, J.Sauvage, I.Stefanescu, K.Van de Vel, P.Van Duppen, Yu.M.Volkov

Charge radii and magnetic moments of odd- A 183-189Pb isotopes

NUCLEAR MOMENTS 182,183,184,185,186,187,188,189,190Pb [from 238U(p, X), E=1, 4 GeV online mass separator using the in-source resonance ionization spectroscopy technique]; measured hfs spectra; deduced μ, hyperfine coupling constants, charge radii. Comparison with other data.

doi: 10.1140/epja/i2009-10817-3
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2009ST05      Phys.Rev. C 79, 034319 (2009)

I.Stefanescu, W.B.Walters, R.V.F.Janssens, N.Hoteling, R.Broda, M.P.Carpenter, B.Fornal, A.A.Hecht, W.Krolas, T.Lauritsen, T.Pawlat, D.Seweryniak, J.R.Stone, X.Wang, A.Wohr, J.Wrzesinski, S.Zhu

Levels above the 19/2- isomer in 71Cu: Persistence of the N=40 neutron shell gap

NUCLEAR REACTIONS 238U(64Ni, X), E=430 MeV; measured Eγ, Iγ, γγ-coin. 71Cu; deduced levels, J, π, configurations. 70Ni, 71Cu, 92Mo; level systematics. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.79.034319
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2009ST07      Phys.Rev. C 79, 044325 (2009)

I.Stefanescu, D.Pauwels, N.Bree, T.E.Cocolios, J.Diriken, S.Franchoo, M.Huyse, O.Ivanov, Y.Kudryavtsev, N.Patronis, J.Van De Walle, P.Van Duppen, W.B.Walters

Evidence for a β-decaying 1/2- isomer in 71Ni

RADIOACTIVITY 71Co, 71Ni(β-) [from 238U(p, X), E=30 MeV]; measured Eγ, Iγ, β, γγ-, βγ-coin with laser on Co resonance, half-lives. 71Ni, 71Cu; deduced levels, J, π, configurations. 69Ni, 69Cu; systematics.

doi: 10.1103/PhysRevC.79.044325
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2009ST12      Phys.Rev. C 79, 064302 (2009)

I.Stefanescu, W.B.Walters, R.V.F.Janssens, S.Zhu, R.Broda, M.P.Carpenter, C.J.Chiara, B.Fornal, B.P.Kay, F.G.Kondev, W.Krolas, T.Lauritsen, C.J.Lister, E.A.McCutchan, T.Pawlat, D.Seweryniak, J.R.Stone, N.J.Stone, J.Wrzesinski

Identification of the g9/2-proton bands in the neutron-rich 71, 73, 75, 77Ga nuclei

NUCLEAR REACTIONS 238U(76Ge, X), E=530 MeV; measured Eγ, Iγ, γγ-coin. 71,73,75,77Ga; deduced levels, J, π. Discussed level systematics of A=65-77, odd-A Ga and Cu nuclides.

doi: 10.1103/PhysRevC.79.064302
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2009ST28      Eur.Phys.J. A 42, 407 (2009)

I.Stefanescu, W.B.Walters, P.F.Mantica, B.A.Brown, A.D.Davies, A.Estrade, P.T.Hosmer, N.Hoteling, S.N.Liddick, W.D.M.Rae, T.J.Mertzimekis, F.Montes, A.C.Morton, W.F.Mueller, M.Ouellette, E.Pellegrini, P.Santi, D.Seweryniak, H.Schatz, J.Shergur, A.Stolz, J.R.Stone, B.E.Tomlin

Spectroscopy of exotic 121, 123, 125Ag produced in fragmentation reactions

NUCLEAR REACTIONS 9Be(136Xe, X)121Pd/123Ag/125Ag, E=120 MeV/nucleon; measured Eγ, Iγ, γγ-, (fragment)γ-coin. 121,123,125Ag; deduced levels, J, π, T1/2. Comparison with shell model and systematics.

RADIOACTIVITY 121Pd(β-) [from 9Be(136Xe, X), E=120 MeV/nucleon]; measured Eγ, Iγ, γγ-, (fragment)γ-coin. 121Ag; deduced levels, J, π. Comparison with shell model and systematics.

doi: 10.1140/epja/i2008-10754-7
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2009VA01      Phys.Rev. C 79, 014309 (2009)

J.Van de Walle, F.Aksouh, T.Behrens, V.Bildstein, A.Blazhev, J.Cederkall, E.Clement, T.E.Cocolios, T.Davinson, P.Delahaye, J.Eberth, A.Ekstrom, D.V.Fedorov, V.N.Fedosseev, L.M.Fraile, S.Franchoo, R.Gernhauser, G.Georgiev, D.Habs, K.Heyde, G.Huber, M.Huyse, F.Ibrahim, O.Ivanov, J.Iwanicki, J.Jolie, O.Kester, U.Koster, T.Kroll, R.Krucken, M.Lauer, A.F.Lisetskiy, R.Lutter, B.A.Marsh, P.Mayet, O.Niedermaier, M.Pantea, R.Raabe, P.Reiter, M.Sawicka, H.Scheit, G.Schrieder, D.Schwalm, M.D.Seliverstov, T.Sieber, G.Sletten, N.Smirnova, M.Stanoiu, I.Stefanescu, J.-C.Thomas, J.J.Valiente-Dobon, P.Van Duppen, D.Verney, D.Voulot, N.Warr, D.Weisshaar, F.Wenander, B.H.Wolf, M.Zielinska

Low-energy Coulomb excitation of neutron-rich zinc isotopes

NUCLEAR REACTIONS 120Sn(74Zn, 74Zn'), E=2.87 MeV/nucleon; 120Sn(76Zn, 76Zn'), E=2.83 MeV/nucleon; 108Pd(78ZN, 78Zn'), E=2.87 MeV/nucleon; 108Pd(80Zn, 80Zn'), E=2.79 MeV/nucleon; measured Eγ, Iγ, charged particle spectra, (particle)-γ coin, measured half-lives of first 2+ state, B(E2). 74,76,78,80Zn, 80Ga, 80Rb, 108Pd, 120Sn; deduced levels. Fe, Ni, Zn, Ge, Se; systematics of B(E2) values. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.79.014309
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2008BR18      Phys.Rev. C 78, 047301 (2008)

N.Bree, I.Stefanescu, P.A.Butler, J.Cederkall, T.Davinson, P.Delahaye, J.Eberth, D.Fedorov, V.N.Fedosseev, L.M.Fraile, S.Franchoo, G.Georgiev, K.Gladnishki, M.Huyse, O.Ivanov, J.Iwanicki, J.Jolie, U.Koster, Th.Kroll, R.Krucken, B.A.Marsh, O.Niedermaier, P.Reiter, H.Scheit, D.Schwalm, T.Sieber, J.Van de Walle, P.Van Duppen, N.Warr, D.Weisshaar, F.Wenander, S.Zemlyanoy

Coulomb excitation of 6828Ni40 at "safe" energies

NUCLEAR REACTIONS 108Pd(68Ni, 68Ni'), E=2.9 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin, σ(θ), scattering angle. 68Ni; deduced levels, J, π, B(E2).

doi: 10.1103/PhysRevC.78.047301
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2008EK01      Phys.Rev.Lett. 101, 012502 (2008)

A.Ekstrom, J.Cederkall, C.Fahlander, M.Hjorth-Jensen, F.Ames, P.A.Butler, T.Davinson, J.Eberth, F.Fincke, A.Gorgen, M.Gorska, D.Habs, A.M.Hurst, M.Huyse, O.Ivanov, J.Iwanicki, O.Kester, U.Koster, B.A.Marsh, J.Mierzejewski, P.Reiter, H.Scheit, D.Schwalm, S.Siem, G.Sletten, I.Stefanescu, G.M.Tveten, J.Van de Walle, P.Van Duppen, D.Voulot, N.Warr, D.Weisshaar, F.Wenander, M.Zielinska

0+gs → 2+1 Transition Strengths in 106Sn and 108Sn

NUCLEAR REACTIONS 58Ni(106Sn, X), E=2.83 MeV/nucleon; 58Ni(108Sn, X), E=2.82 MeV/nucleon; measured Eγ, Iγ following coulomb excitations.106,108Sn; deduced B(E2).

doi: 10.1103/PhysRevLett.101.012502
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2008PA33      Phys.Rev. C 78, 041307 (2008)

D.Pauwels, O.Ivanov, N.Bree, J.Buscher, T.E.Cocolios, J.Gentens, M.Huyse, A.Korgul, Yu.Kudryavtsev, R.Raabe, M.Sawicka, I.Stefanescu, J.Van de Walle, P.Van den Bergh, P.Van Duppen, W.B.Walters

Shape isomerism at N = 40: Discovery of a proton intruder state in 67Co

RADIOACTIVITY 67Fe(β-) [from 238U(p, F), E=30 MeV]; measured Eγ, Iγ, Eβ, Iβ, γγ-, γβ-coin, half-lives, multipolarities, logft. 67Co; deduced levels, isomers, configurations by correlation techniques. Comparisons with 57,59,61,63,65,67Co, 68Ni and theoretical data.

doi: 10.1103/PhysRevC.78.041307
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2008ST04      Phys.Rev.Lett. 100, 112502 (2008)

I.Stefanescu, G.Georgiev, D.L.Balabanski, N.Blasi, A.Blazhev, N.Bree, J.Cederkall, T.E.Cocolios, T.Davinson, J.Diriken, J.Eberth, A.Ekstrom, D.Fedorov, V.N.Fedosseev, L.M.Fraile, S.Franchoo, K.Gladnishki, M.Huyse, O.Ivanov, V.Ivanov, J.Iwanicki, J.Jolie, T.Konstantinopoulos, Th.Kroll, R.Krucken, U.Koster, A.Lagoyannis, G.Lo Bianco, P.Maierbeck, B.A.Marsh, P.Napiorkowski, N.Patronis, D.Pauwels, G.Rainovski, P.Reiter, K.Riisager, M.Seliverstov, G.Sletten, J.Van de Walle, P.Van Duppen, D.Voulot, N.Warr, F.Wenander, K.Wrzosek

Interplay between Single-Particle and Collective Effects in the Odd-A Cu Isotopes beyond N = 40

NUCLEAR REACTIONS 104Pd(67Cu, 67Cu'), (69Cu, 69Cu'), (71Cu, 71Cu'), E=2.99 MeV/nucleon; 120Sn(71Cu, 71Cu'), (73Cu, 73Cu'), E=2.99 MeV/nucleon; measured Eγ, Iγ following coulomb excitation. 67,69,71,73Cu; deduced level energies, B(E2).

doi: 10.1103/PhysRevLett.100.112502
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2007CE02      Phys.Rev.Lett. 98, 172501 (2007)

J.Cederkall, A.Ekstrom, C.Fahlander, A.M.Hurst, M.Hjorth-Jensen, F.Ames, A.Banu, P.A.Butler, T.Davinson, U.Datta Pramanik, J.Eberth, S.Franchoo, G.Georgiev, M.Gorska, D.Habs, M.Huyse, O.Ivanov, J.Iwanicki, O.Kester, U.Koster, B.A.Marsh, O.Niedermaier, T.Nilsson, P.Reiter, H.Scheit, D.Schwalm, T.Sieber, G.Sletten, I.Stefanescu, J.Van de Walle, P.Van Duppen, N.Warr, D.Weisshaar, F.Wenander

Sub-Barrier Coulomb Excitation of 110Sn and Its Implications for the 100Sn Shell Closure

NUCLEAR REACTIONS 58Ni(110Sn, 110Sn'), E=2.82 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin following Coulomb excitation. 110Sn deduced B(E2) of the first excited 2+ state. MINIBALL array at REX-ISOLDE.

doi: 10.1103/PhysRevLett.98.172501
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2007DE09      Phys.Rev.Lett. 98, 112502 (2007)

H.De Witte, A.N.Andreyev, N.Barre, M.Bender, T.E.Cocolios, S.Dean, D.Fedorov, V.N.Fedoseyev, L.M.Fraile, S.Franchoo, V.Hellemans, P.H.Heenen, K.Heyde, G.Huber, M.Huyse, H.Jeppesen, U.Koster, P.Kunze, S.R.Lesher, B.A.Marsh, I.Mukha, B.Roussiere, J.Sauvage, M.Seliverstov, I.Stefanescu, E.Tengborn, K.Van de Vel, J.Van de Walle, P.Van Duppen, Yu.Volkov

Nuclear Charge Radii of Neutron-Deficient Lead Isotopes Beyond N = 104 Midshell Investigated by In-Source Laser Spectroscopy

ATOMIC PHYSICS 182,183,183m,184,185,185m,186,187,187m,188,189,189m,190Pb; measured isotope shifts; deduced charge radii.

doi: 10.1103/PhysRevLett.98.112502
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2007HU03      Phys.Rev.Lett. 98, 072501 (2007)

A.M.Hurst, P.A.Butler, D.G.Jenkins, P.Delahaye, F.Wenander, F.Ames, C.J.Barton, T.Behrens, A.Burger, J.Cederkall, E.Clement, T.Czosnyka, T.Davinson, G.de Angelis, J.Eberth, A.Ekstrom, S.Franchoo, G.Georgiev, A.Gorgen, R.-D.Herzberg, M.Huyse, O.Ivanov, J.Iwanicki, G.D.Jones, P.Kent, U.Koster, T.Kroll, R.Krucken, A.C.Larsen, M.Nespolo, M.Pantea, E.S.Paul, M.Petri, H.Scheit, T.Sieber, S.Siem, J.F.Smith, A.Steer, I.Stefanescu, N.U.H.Syed, J.Van de Walle, P.Van Duppen, R.Wadsworth, N.Warr, D.Weisshaar, M.Zielinska

Measurement of the Sign of the Spectroscopic Quadrupole Moment for the 2+1 State in 70Se: No Evidence for Oblate Shape

NUCLEAR REACTIONS 104Pd(70Se, 70Se'), E=206 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 70Se deduced prolate deformation.

doi: 10.1103/PhysRevLett.98.072501
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2007KR19      Eur.Phys.J. Special Topics 150, 127 (2007)

Th.Kroll, T.Behrens, R.Krucken, V.Bildstein, R.Gernhauser, P.Maierbeck, I.Stefanescu, O.Ivanov, J.Van de Walle, N.Warr, P.A.Butler, J.Cederkall, P.Delahaye, L.M.Fraile, G.Georgiev, U.Koster, T.Sieber, D.Voulot, F.Wenander, P.E.Kent, A.Ekstrom, K.-H.Speidel, J.Leske, S.Schielke, D.Habs, R.Lutter, P.Thirolf, H.Scheit, T.Davinson, and the REX-ISOLDE and MINIBALL Collaboration

Coulomb excitation of neutron-rich 138, 140, 142Xe at REX-ISOLDE

NUCLEAR REACTIONS 96Mo(138Xe, 138Xe'), (140Xe, 140Xe'), (142Xe, 142Xe'), E=2.84 MeV/nucleon; measured Eγ, Iγ. 138,140,142Xe; deduced B(E2).

doi: 10.1140/epjst/e2007-00284-6
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2007MU07      Prog.Part.Nucl.Phys. 59, 361 (2007)

D.Mucher, J.Iwanicki, A.Blazhev, P.Van Duppen, C.Fransen, J.Jolie, A.Linnemann, J.Mierzejewski, I.Stefanescu, J.Van de Walle, N.Warr, K.Wrzosek, for the MINIBALL Collaboration

Coulomb excitation of 88Kr and 92Kr in inverse kinematics

NUCLEAR REACTIONS 109Ag(88Kr, γ), 109Ag(92Kr, γ);E= 2.2 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coinc using MINIBALL. Deduced B(E2).

doi: 10.1016/j.ppnp.2007.01.017
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2007ST03      Phys.Rev.Lett. 98, 122701 (2007)

I.Stefanescu, G.Georgiev, F.Ames, J.Aysto, D.L.Balabanski, G.Bollen, P.A.Butler, J.Cederkall, N.Champault, T.Davinson, A.De Maesschalck, P.Delahaye, J.Eberth, D.Fedorov, V.N.Fedosseev, L.M.Fraile, S.Franchoo, K.Gladnishki, D.Habs, K.Heyde, M.Huyse, O.Ivanov, J.Iwanicki, J.Jolie, B.Jonson, Th.Kroll, R.Krucken, O.Kester, U.Koster, A.Lagoyannis, L.Liljeby, G.Lo Bianco, B.A.Marsh, O.Niedermaier, T.Nilsson, M.Oinonen, G.Pascovici, P.Reiter, A.Saltarelli, H.Scheit, D.Schwalm, T.Sieber, N.Smirnova, J.Van De Walle, P.Van Duppen, S.Zemlyanoi, N.Warr, D.Weisshaar, F.Wenander

Coulomb Excitation of 68, 70Cu: First Use of Postaccelerated Isomeric Beams

NUCLEAR REACTIONS 120Sn(68Cu, 68Cu'), (70Cu, 70Cu'), E=2.83 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 68,70Cu deduced transitions B(E2). Isomeric beams, comparison with large-scale shell model calculations.

doi: 10.1103/PhysRevLett.98.122701
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2007ST26      Nucl.Phys. A789, 125 (2007)

I.Stefanescu, A.Gelberg, J.Jolie, P.Van Isacker, P.von Brentano, Y.X.Luo, S.J.Zhu, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, X.L.Che

IBM-1 description of the fission products 108, 110, 112Ru

NUCLEAR STRUCTURE 108,110,112Ru; calculated level energies, J, π, branching ratios and B(E2)using the IBM-1.

doi: 10.1016/j.nuclphysa.2007.03.007
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2007VA20      Phys.Rev.Lett. 99, 142501 (2007)

J.Van de Walle, F.Aksouh, F.Ames, T.Behrens, V.Bildstein, A.Blazhev, J.Cederkall, E.Clement, T.E.Cocolios, T.Davinson, P.Delahaye, J.Eberth, A.Ekstrom, D.V.Fedorov, V.N.Fedosseev, L.M.Fraile, S.Franchoo, R.Gernhauser, G.Georgiev, D.Habs, K.Heyde, G.Huber, M.Huyse, F.Ibrahim, O.Ivanov, J.Iwanicki, J.Jolie, O.Kester, U.Koster, T.Kroll, R.Krucken, M.Lauer, A.F.Lisetskiy, R.Lutter, B.A.Marsh, P.Mayet, O.Niedermaier, T.Nilsson, M.Pantea, O.Perru, R.Raabe, P.Reiter, M.Sawicka, H.Scheit, G.Schrieder, D.Schwalm, M.D.Seliverstov, T.Sieber, G.Sletten, N.Smirnova, M.Stanoiu, I.Stefanescu, J.-C.Thomas, J.J.Valiente-Dobon, P.Van Duppen, D.Verney, D.Voulot, N.Warr, D.Weisshaar, F.Wenander, B.H.Wolf, M.Zielinska

Coulomb Excitation of Neutron-Rich Zn Isotopes: First Observation of the 2+1 State in 80Zn

NUCLEAR REACTIONS 108Pd, 120Sn(74Zn, 74Zn'), (76Zn, 76Zn'), (78Zn, 78Zn'), (80Zn, 80Zn'), E=2.79-2.87 MeV/nucleon; measured Eγ, Iγ. 74,76,78,80Zn deduced B(E2).

doi: 10.1103/PhysRevLett.99.142501
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2007ZH24      Prog.Part.Nucl.Phys. 59, 329 (2007)

S.J.Zhu, Y.X.Luo, J.H.Hamilton, J.O.Rasmussen, A.V.Ramayya, J.K.Hwang, H.B.Ding, X.L.Che, Z.Jiang, P.M.Gore, E.F.Jones, K.Li, I.Y.Lee, W.C.Ma, G.M.Ter-Akopian, A.V.Daniel, S.Frauendorf, V.Dimitrov, J.Y.Zhang, A.Gelberg, I.Stefanescu, J.D.Cole

Triaxiality, chiral bands and gamma vibrations in A = 99-114 nuclei

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγγ-coinc with Gammasphere. A=99-114; deduced new band structures and significant extensions of previously known bands.

doi: 10.1016/j.ppnp.2006.12.022
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2006GE18      Int.J.Mod.Phys. E15, 1505 (2006)

G.Georgiev, I.Stefanescu, D.L.Balabanski, P.Butler, J.Cederkall, T.Davinson, P.Delahaye, V.N.Fedosseev, L.M.Fraile, S.Franchoo, K.Gladnishki, K.Heyde, M.Huyse, O.Ivanov, J.Iwanicki, Th.Kroll, U.Koster, A.Lagoyannis, G.Lo Bianco, A.De Maesschalck, A.Saltarelli, T.Sieber, N.Smirnov, P.Van Duppen, N.Warr, F.Wenander, J.van de Walle, and the REX-ISOLDE and MINIBALL Collaborations

First use of post-accelerated isomeric beams for Coulomb excitations studies of odd-odd nuclei around N=40

NUCLEAR REACTIONS 120Sn(68Cu, 68Cu'), (70Cu, 70Cu'), E=2.86 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 68,70Cu deduced transitions B(E2). Isomeric beams.

doi: 10.1142/S0218301306005095
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2006LU12      Phys.Rev. C 74, 024308 (2006)

Y.X.Luo, J.H.Hamilton, J.O.Rasmussen, A.V.Ramayya, I.Stefanescu, J.K.Hwang, X.L.Che, S.J.Zhu, P.M.Gore, E.F.Jones, D.Fong, S.C.Wu, I.Y.Lee, T.N.Ginter, W.C.Ma, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo, A.Gelberg

Nuclear shape and structure in neutron-rich 110, 111Tc

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 110,111Tc deduced high-spin levels, J, π, configurations. Gammasphere array, cranking model calculations. Level systematics in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.74.024308
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2005LU21      J.Phys.(London) G31, 1303 (2005)

Y.X.Luo, J.O.Rasmussen, I.Stefanescu, A.Gelberg, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.J.Zhu, P.M.Gore, D.Fong, E.F.Jones, S.C.Wu, I.Y.Lee, T.N.Ginter, W.C.Ma, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo

Shape trends and triaxiality in neutron-rich odd-mass Y and Nb isotopes

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 99,101Y, 101,105Nb deduced levels, J, π, configurations, rotational bands, shape transition features. Gammasphere array, triaxial-rotor-plus-quasiparticle calculations.

doi: 10.1088/0954-3899/31/11/013
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2005LU24      Eur.Phys.J. A 25, Supplement 1, 469 (2005)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, A.Gelberg, I.Stefanescu, J.K.Hwang, S.J.Zhu, P.M.Gore, D.Fong, E.F.Jones, S.C.Wu, I.Y.Lee, T.N.Ginter, W.C.Ma, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, R.Donangelo

Shape transitions and triaxiality in neutron-rich odd-mass Y and Nb isotopes

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 99,101Y, 101,105Nb deduced levels, J, π, configurations, deformation. Gammasphere array, triaxial-rotor-plus-particle calculations.

doi: 10.1140/epjad/i2005-06-044-x
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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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2005VA30      Phys.Rev.Lett. 95, 232501 (2005)

J.J.Valiente-Dobon, T.Steinhardt, C.E.Svensson, A.V.Afanasjev, I.Ragnarsson, C.Andreoiu, R.A.E.Austin, M.P.Carpenter, D.Dashdorj, G.de Angelis, F.Donau, J.Eberth, E.Farnea, S.J.Freeman, A.Gadea, P.E.Garrett, A.Gorgen, G.F.Grinyer, B.Hyland, D.Jenkins, F.Johnston-Theasby, P.Joshi, A.Jungclaus, K.P.Lieb, A.O.Macchiavelli, E.F.Moore, G.Mukherjee, D.R.Napoli, A.A.Phillips, C.Plettner, W.Reviol, D.Sarantites, H.Schnare, M.A.Schumaker, R.Schwengner, D.Seweryniak, M.B.Smith, I.Stefanescu, O.Thelen, R.Wadsworth

Evidence for Nontermination of Rotational Bands in 74Kr

NUCLEAR REACTIONS 40Ca(40Ca, 2pα), E=165, 185 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, (neutron)γ-coin, DSA. 74Kr deduced high-spin levels, J, π, T1/2, transition quadrupole moments, configurations, nontermination of rotational bands. Euroball III, ISIS, Gammasphere, and Microball arrays.

doi: 10.1103/PhysRevLett.95.232501
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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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2003GA46      Acta Phys.Pol. B34, 2429 (2003)

A.Gadea, G.De Angelis, E.Farnea, N.Marginean, M.Axiotis, T.Martinez, D.R.Napoli, Th.Kroell, M.De Poli, P.Spolaore, E.Fioretto, S.M.Lenzi, E.Maglione, C.Ur, S.Lunardi, R.Menegazzo, P.Pavan, R.Venturelli, F.Brandolini, C.Rossi Alvarez, G.Nardelli, M.Bellato, A.Bracco, F.Camera, G.Colo, D.Bucurescu, M.Ionescu-Bujor, A.Iordachescu, D.Curien, O.Dorvaux, N.Kintz, C.Ring, H.Grawe, J.Nyberg, M.Weiszflog, A.Dewald, J.Eberth, T.Steinhardt, I.Stefanescu, O.Thelen, A.Fitzler, S.Kasemann, T.Klug, P.Petkov, W.Gelletly, A.M.Bizzeti-Sona, P.G.Bizzeti, B.Quintana, B.Rubio, J.L.Tain, A.Algora, V.F.E.Pucknell, R.Wyss

Spectroscopy of heavy N = Z nuclei with GASP and EUROBALL


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.


2002LA19      Eur.Phys.J. A 14, 393 (2002)

K.Lagergren, B.Cederwall, A.Johnson, J.Blomqvist, D.Sohler, G.de Angelis, P.Bednarczyk, T.Back, T.Claesson, O.Dorvaux, E.Farnea, A.Gadea, M.Gorska, L.Milechina, L.O.Norlin, A.Odahara, M.Palacz, I.Stefanescu, O.Thelen, J.P.Vivien

Evidence for excited states in 95Ag

NUCLEAR REACTIONS 40Ca(58Ni, 2np), E=208 MeV; measured Eγ, Iγ, (neutron)γ-, (charged particle)γ-, γγ-coin. 95Ag deduced transitions, excited states. Euroball array.

doi: 10.1140/epja/i2002-10049-1
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2001DE46      Eur.Phys.J. A 12, 51 (2001)

G.de Angelis, T.Martinez, A.Gadea, N.Marginean, E.Farnea, E.Maglione, S.Lenzi, W.Gelletly, C.A.Ur, D.R.Napoli, Th.Kroell, S.Lunardi, B.Rubio, M.Axiotis, D.Bazzacco, A.M.Bizzeti Sona, P.G.Bizzeti, P.Bednarczyk, A.Bracco, F.Brandolini, F.Camera, D.Curien, M.De Poli, O.Dorvaux, J.Eberth, H.Grawe, R.Menegazzo, G.Nardelli, J.Nyberg, P.Pavan, B.Quintana, C.Rossi Alvarez, P.Spolaore, T.Steinhardt, I.Stefanescu, O.Thelen, R.Venturelli

Coulomb Energy Differences between Isobaric Analogue States in 70Br and 70Se Identification of Excited States of the Tz = 0 Nucleus 70Br

NUCLEAR REACTIONS 40Ca(32S, np), E=90, 95 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-, γγ-coin. 70Br deduced levels, possible J, π, configurations. 70Br, 70Se; deduced Coulomb energy differences between isobaric analogue states. GASP, ISIS, Euroball arrays.

doi: 10.1007/s100500170038
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