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NSR database version of May 19, 2024.

Search: Author = B.Szpak

Found 40 matches.

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2021BO02      Phys.Rev. C 103, 014320 (2021)

S.Bottoni, N.Cieplicka-Orynczak, S.Leoni, B.Fornal, G.Colo, P.F.Bortignon, G.Bocchi, D.Bazzacco, G.Benzoni, A.Blanc, A.Bracco, S.Ceruti, F.C.L.Crespi, G.de France, E.R.Gamba, L.W.Iskra, M.Jentschel, U.Koster, C.Michelagnoli, B.Million, D.Mengoni, P.Mutti, Y.Niu, C.Porzio, G.Simpson, T.Soldner, B.Szpak, A.Turler, C.A.Ur, W.Urban

Low-spin particle-core and hole-core excitations in 41, 47, 49Ca isotopes studied by cold-neutron-capture reactions

NUCLEAR REACTIONS 40,46,48Ca(n, γ), E=cold neutrons from High Flux Reactor of ILL-Grenoble; measured Eγ, Iγ, γγ-coin, γγ(θ) using EXILL array of eight clover detectors from the EXOGAM setup, six coaxial detectors from the GASP array, and two ILL clover detectors. 41,47,49Ca; deduced levels, J, π, γ branching ratios, multipolarities, mixing ratios, S(n), configurations. Comparison with self-consistent beyond-mean-field calculations using hybrid configuration mixing model, based on a Skyrme SkX Hamiltonian.

NUCLEAR STRUCTURE 41,47,49Ca; calculated levels, J, π, wave functions and corresponding squared amplitudes, B(E3), spectroscopic factors for 49Ca levels populated in (d, p) reaction using self-consistent beyond-mean-field calculations in a hybrid configuration mixing model, based on a Skyrme SkX Hamiltonian. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.014320
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2019KA04      Phys.Rev. C 99, 014301 (2019)

L.Kaya, A.Vogt, P.Reiter, C.Muller-Gatermann, A.Gargano, L.Coraggio, N.Itaco, A.Blazhev, K.Arnswald, D.Bazzacco, B.Birkenbach, A.Bracco, B.Bruyneel, L.Corradi, F.C.L.Crespi, G.de Angelis, M.Droste, J.Eberth, E.Farnea, E.Fioretto, C.Fransen, A.Gadea, A.Giaz, A.Gorgen, A.Gottardo, K.Hadynska-Klek, H.Hess, R.Hetzenegger, R.Hirsch, P.R.John, J.Jolie, A.Jungclaus, W.Korten, S.Leoni, L.Lewandowski, S.Lunardi, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, D.Napoli, Zs.Podolyak, G.Pollarolo, F.Recchia, D.Rosiak, N.Saed-Samii, E.Sahin, M.Siciliano, F.Scarlassara, M.Seidlitz, P.-A.Soderstrom, A.M.Stefanini, O.Stezowski, S.Szilner, B.Szpak, C.Ur, J.J.Valiente-Dobon, M.Weinert, K.Wolf, K.O.Zell

Identification of high-spin proton configurations in 136Ba and 137Ba

NUCLEAR REACTIONS 238U(136Xe, 136Ba), E=6.84 MeV/nucleon; measured Eγ, Iγ, charged particles, and (charged particles)γ- and γγ-coin using the AGATA array for γ detection and the PRISMA spectrometer for charged particles at PIAVE+ALPI accelerator complex of INFN-LNL-Legnaro. 130Te(9Be, X)136Ba, E=40, 43 MeV; 130Te(11B, X)136Ba/137Ba, E not given; measured Eγ, Iγ, γγ-coin, γγ(θ) using 11 HPGe detectors and HORUS array of 14 HPGe detectors at the FN Tandem accelerator of University of Cologne. 136,137Ba; deduced high-spin levels, J, π, multipolarities, mixing ratios. Comparison with shell model predictions using GCN50:82, PQM130, realistic SM and SN100PN interactions. Systematics of high-spin levels in 134,135Xe, 136,137Ba, 138,139Ce, 140Nd.

NUCLEAR STRUCTURE 136,137Ba; calculated levels, J, π, wave functions, neutron occupation numbers using shell model with several interactions. Comparison with experimental data. 134Xe, 136Ba, 138Ce; calculated average neutron occupation numbers of the gdsh model space for observed high-spin states using the GCN50:82 and SN100PN interactions. 134Xe, 136Ba; calculated decomposition of the total angular momentum of selected states.

doi: 10.1103/PhysRevC.99.014301
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2019KA36      Phys.Rev. C 100, 024323 (2019)

L.Kaya, A.Vogt, P.Reiter, M.Siciliano, N.Shimizu, Y.Utsuno, H.-K.Wang, A.Gargano, L.Coraggio, N.Itaco, K.Arnswald, D.Bazzacco, B.Birkenbach, A.Blazhev, A.Bracco, B.Bruyneel, L.Corradi, F.C.L.Crespi, G.de Angelis, M.Droste, J.Eberth, A.Esmaylzadeh, E.Farnea, E.Fioretto, C.Fransen, A.Gadea, A.Giaz, A.Gorgen, A.Gottardo, K.Hadynska-Klek, H.Hess, R.Hirsch, P.R.John, J.Jolie, A.Jungclaus, V.Karayonchev, L.Kornwebel, W.Korten, S.Leoni, L.Lewandowski, S.Lunardi, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, C.Muller-Gatermann, D.Napoli, Zs.Podolyak, G.Pollarolo, F.Recchia, J.-M.Regis, N.Saed-Samii, E.Sahin, F.Scarlassara, K.Schomacker, M.Seidlitz, B.Siebeck, P.-A.Soderstrom, A.M.Stefanini, O.Stezowski, S.Szilner, B.Szpak, E.Teruya, C.Ur, J.J.Valiente-Dobon, K.Wolf, K.Yanase, N.Yoshinaga, K.O.Zell

Isomer spectroscopy in 133Ba and high-spin structure of 134Ba

NUCLEAR REACTIONS 124Sn(13C, X)133Ba/134Ba, E=55 MeV from FN tandem accelerator at Cologne; 208Pb(136Xe, X)134Ba, E=6.84 MeV/nucleon from PIAVE+ALPI accelerator complex at LNL-Legnaro; measured Eγ, Iγ, γγ-coin, γγ(θ), half-lives of isomers by γγ(t) using eight HPGe and 12 LaBr3(ce) detectors at Cologne, and magnetic spectrometer PRISMA with AGATA array at Legnaro. 133,134Ba; deduced high-spin levels, isomers, J, π, multipolarities, alignments, bands, backbending, configurations, B(E1), B(E2). Comparison with shell-model calculations for 134Ba, and with previous experimental results. Systematics of positive- and negative-parity yrast states in N=78 nuclei: 130Te, 132Xe, 134Ba, 136Ce, 138Nd, 140Sm, 142Gd, and Z=56 nuclei: 126,128,130,132,134,136,138Ba.

NUCLEAR STRUCTURE 134Ba; calculated levels, J, π using GCN50:82, SN100PN, SNV, PQM130, and realistic SM interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.100.024323
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2019MA78      Phys.Rev. C 100, 054330 (2019)

M.Matejska-Minda, P.Bednarczyk, B.Fornal, F.R.Xu, W.Y.Liang, G.de Angelis, S.Aydin, S.Brambilla, M.Ciemala, E.Farnea, T.Huyuk, G.Jaworski, M.Kmiecik, M.Krzysiek, S.Leoni, A.Maj, R.Menegazzo, W.Meczynski, C.Michelagnoli, M.Palacz, F.Recchia, E.Sahin, J.Styczen, B.Szpak, C.A.Ur, R.Wadsworth, M.Zieblinski

Lifetime measurements of short-lived excited states, and shape changes in 69As and 66Ge nuclei

NUCLEAR REACTIONS 40Ca(32S, 3p)69As, (32S, 2pα)66Ge, E=95 MeV; measured Eγ, Iγ, γγ-and (recoil)γγ-coin, level half-lives by DSAM and (recoil)γγ-coin method using the GASP array and recoil filter detector setup at the Tandem XTU accelerator of the INFN-LNL-Legnaro. 69As, 66Ge; deduced high-spin levels, J, π, B(E2), transition quadrupole moments, shape changes, configurations. Comparison with the cranked Woods-Saxon-Strutinsky calculations by means of the total Routhian surface (TRS) method.

doi: 10.1103/PhysRevC.100.054330
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2018KA27      Phys.Rev. C 98, 014309 (2018)

L.Kaya, A.Vogt, P.Reiter, M.Siciliano, B.Birkenbach, A.Blazhev, L.Coraggio, E.Teruya, N.Yoshinaga, K.Higashiyama, K.Arnswald, D.Bazzacco, A.Bracco, B.Bruyneel, L.Corradi, F.C.L.Crespi, G.de Angelis, J.Eberth, E.Farnea, E.Fioretto, C.Fransen, B.Fu, A.Gadea, A.Gargano, A.Giaz, A.Gorgen, A.Gottardo, K.Hadynska-Klek, H.Hess, R.Hetzenegger, R.Hirsch, N.Itaco, P.R.John, J.Jolie, A.Jungclaus, W.Korten, S.Leoni, L.Lewandowski, S.Lunardi, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, C.Muller-Gatermann, D.Napoli, Zs.Podolyak, G.Pollarolo, A.Pullia, M.Queiser, F.Recchia, D.Rosiak, N.Saed-Samii, E.Sahin, F.Scarlassara, D.Schneiders, M.Seidlitz, B.Siebeck, J.F.Smith, P.-A.Soderstrom, A.M.Stefanini, T.Steinbach, O.Stezowski, S.Szilner, B.Szpak, C.Ur, J.J.Valiente-Dobon, K.Wolf, K.O.Zell

High-spin structure in the transitional nucleus 131Xe: Competitive neutron and proton alignment in the vicinity of the N=82 shell closure

NUCLEAR REACTIONS 208Pb(136Xe, X), E=6.84 MeV/nucleon; 238U(136Xe, X), E=7.35 MeV/nucleon; measured projectile-like reaction fragments using PRISMA magnetic spectrometer, Eγ, Iγ, γγ- and (131Xe)γ-coin using AGATA demonstrator array for γ detection at LNL-Legnaro. 124Sn(11B, 3np), E=54 MeV; measured Eγ, Iγ, γγ and pγ-coin, γγ(θ) using HORUS array at Cologne for γ detection and annular double-sided silicon strip detector (DSSSD) for particles. 131Xe; deduced levels, J, π, high-spin states. Comparison with shell-model calculations using several different interactions; discussed systematics of high-spin states in Z=54 nuclei of 123,125,127,129,131Xe, and N=77 nuclei of 127Sn, 129Te131Xe, 133Ba, 135Ce, 137Nd, 139Sm, 141Gd; compiled experimental total aligned angular momentum versus rotational frequency plots for yrast bands in A=117-132 Xe isotopes.

NUCLEAR STRUCTURE 131Xe; calculated levels, J, π, contribution of proton and neutron configurations for selected states, proton and neutron occupation numbers in h11/2 orbital, total aligned angular momenta as function of rotational frequency, and B(E2) using shell-model calculations with PQM130, SN100PN, GCN50:82, realistic SM, and SN100-KTH interactions. 129Xe; calculated proton and neutron occupation numbers in h11/2 orbital, total aligned angular momenta as function rotational frequency using shell model. Comparison with experimental data.

doi: 10.1103/PhysRevC.98.014309
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2018KA47      Phys.Rev. C 98, 054312 (2018)

L.Kaya, A.Vogt, P.Reiter, C.Muller-Gatermann, M.Siciliano, L.Coraggio, N.Itaco, A.Gargano, K.Arnswald, D.Bazzacco, B.Birkenbach, A.Blazhev, A.Bracco, B.Bruyneel, L.Corradi, F.C.L.Crespi, G.de Angelis, M.Droste, J.Eberth, E.Farnea, E.Fioretto, C.Fransen, A.Gadea, A.Giaz, A.Gorgen, A.Gottardo, K.Hadynska-Klek, H.Hess, R.Hetzenegger, R.Hirsch, P.R.John, J.Jolie, A.Jungclaus, W.Korten, S.Leoni, L.Lewandowski, S.Lunardi, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, D.Napoli, Zs.Podolyak, G.Pollarolo, F.Recchia, D.Rosiak, N.Saed-Samii, E.Sahin, F.Scarlassara, M.Seidlitz, P.-A.Soderstrom, A.M.Stefanini, O.Stezowski, S.Szilner, B.Szpak, C.Ur, J.J.Valiente-Dobon, M.Weinert, K.Wolf, K.O.Zell

Millisecond 23/2+ isomers in the N=79 isotones 133Xe and 135Ba

NUCLEAR REACTIONS 208Pb(136Xe, X)135Ba/133Xe/132Xe/136Ba, E=6.84 MeV/nucleon; measured Eγ, Iγ, γγ-coin, (particle)γ-coin using the Advanced GAmma Tracking Array (AGATA) for γ detection and the PRISMA magnetic spectrometer for particle identification at the PIAVE+ALPI accelerator complex of LNL-Legnaro. 130Te(9Be, X)132Xe/133Xe/135Ba/136Ba, E=40 MeV; measured Eγ, Iγ, γγ-coin, off-beam γγ(θ), half-lives of isomers using the HORUS array for γ detection at the FN tandem accelerator of the University of Cologne. 132,133Xe, 135,136Ba; deduced high-spin levels, isomers, J, π, total conversion coefficients, multipolarities, mixing ratios, configurations, B(M2), B(E3). 214Po; deduced mixing ratio for a transition from γγ(θ) measurement. Comparison with previous experimental data, and with large-scale shell model calculations using the SM, GCN50:82, SN100PN and SN100-KTH interactions. Systematics of levels, J, π, transition probabilities and isomers in N=79 isotones of 129Sn, 131Te, 133Xe, 135Ba, 137Ce, 139Nd, 141Sm, 143Gd.

NUCLEAR STRUCTURE 133Xe, 135Ba; calculated levels, J, π, configurations using large-scale shell model with SM, GCN50:82, SN100PN and SN100-KTH interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.98.054312
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2018ST06      Phys.Lett. B 779, 456 (2018)

I.Stefan, B.Fornal, S.Leoni, F.Azaiez, C.Portail, J.C.Thomas, A.V.Karpov, D.Ackermann, P.Bednarczyk, Y.Blumenfeld, S.Calinescu, A.Chbihi, M.Ciemala, N.Cieplicka-Orynczak, F.C.L.Crespi, S.Franchoo, F.Hammache, L.W.Iskra, B.Jacquot, R.V.F.Janssens, O.Kamalou, T.Lauritsen, M.Lewitowicz, L.Olivier, S.M.Lukyanov, M.Maccormick, A.Maj, P.Marini, I.Matea, M.A.Naumenko, F.de Oliveira Santos, C.Petrone, Yu.E.Penionzhkevich, F.Rotaru, H.Savajols, O.Sorlin, M.Stanoiu, B.Szpak, O.B.Tarasov, D.Verney

Neutron-rich nuclei produced at zero degrees in damped collisions induced by a beam of 18O on a 238U target

NUCLEAR REACTIONS 238U(18O, X)12B/13B/14B/15B/13C/14C/15C/16C/17C/18C/19C, 14N/15N/16N/17N/18N/19N/20N, 16O/17O/18O/19O/20O/21O/22O, 17F/18F/19F/20F/21F/22F/23F/24F/22Ne/23Ne/24Ne/25Ne, E=8.5 MeV/nucleon; measured reaction products; deduced σ(θ), momentum distributions. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2018.02.037
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2017BO09      Acta Phys.Pol. B48, 595 (2017)

G.Bocchi, S.Leoni, B.Fornal, G.Colo, P.F.Bortignon, D.Bazzacco, A.Blanc, S.Bottoni, N.Cieplicka-Orynczak, F.C.L.Crespi, G.De France, M.Jentschel, U.Koster, C.Michelagnoli, P.Mutti, J.-M.Regis, G.Simpson, T.Soldner, B.Szpak, C.A.Ur, W.Urban

Interplay Between Particle and Core Excitations in 133Sb

NUCLEAR REACTIONS 235U, 241Pu(n, f), E=cold; measured fission fragments both prompt and delayed Eγ, Iγ(t), (fragment)γ-coin, γγ-coin. 133Sb; deduced high-spin γ transitions 13/2+ and 15/2+ isomers T1/2, levels, J, π above 16.6 ms (21/2)+, state (4526 keV), B(M1) for (15/2)+ to (13/2)+ to (11/2)+, depopulation of the (21/2)+ isomer; calculated levels configuration, B(M1) for (15/2)+ to (13/2)+ to (11/2)+ using new "hybrid" microscopic model including couplings to different types of core excitation. Compared with "pure" shell model calculation.

doi: 10.5506/APhysPolB.48.595
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2017BR08      Phys.Rev. C 95, 064308 (2017)

R.Broda, R.V.F.Janssens, L.W.Iskra, J.Wrzesinski, B.Fornal, M.P.Carpenter, C.J.Chiara, N.Cieplicka-Orynczak, C.R.Hoffman, F.G.Kondev, W.Krolas, T.Lauritsen, Zs.Podolyak, D.Seweryniak, C.M.Shand, B.Szpak, W.B.Walters, S.Zhu, B.A.Brown

Doubly magic 208Pb: High-spin states, isomers, and E3 collectivity in the yrast decay

NUCLEAR REACTIONS 208Pb(48Ca, X), E=430 MeV; 208Pb(208Pb, X), E=1440 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ), half-lives of isomers by γγ(t), in-beam and off-beam Iγ using Gammasphere array at ATLAS-ANL facility. 208Pb; deduced high-spin levels, new isomers, J, π, total electron-conversion coefficients from intensity balances, multipolarities, mixing ratios, B(E1), B(E2), B(E3), B(M1), B(M2), 1p-1h yrast and near-yrast states and their rotational interpretation, 2p-2h states. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.95.064308
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2017IS03      Europhys.Lett. 117, 12001 (2017)

L.W.Iskra, B.Fornal, S.Leoni, G.Bocchi, A.Petrovici, C.Porzio, A.Blanc, G.De France, M.Jentschel, U.Koster, P.Mutti, J.-M.Regis, G.Simpson, T.Soldner, C.A.Ur, W.Urban, D.Bazzacco, G.Benzoni, S.Bottoni, A.Bruce, N.Cieplicka-Orynczak, F.C.L.Crespi, L.M.Fraile, W.Korten, T.Kroll, S.Lalkovski, N.Marginean, C.Michelagnoli, B.Melon, D.Mengoni, B.Million, A.Nannini, D.Napoli, Zs.Podolyak, P.H.Regan, B.Szpak

New isomer in 96Y marking the onset of deformation at N = 57

NUCLEAR REACTIONS 235U, 241Pu(n, X)96Y, E thermal; measured reaction products, Eγ, Iγ; deduced γ-ray energies, intensities, J, π, isomer T1/2, negative parity states B(E2). Comparison with theoretical calculations.

doi: 10.1209/0295-5075/117/12001
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2017VA07      Acta Phys.Pol. B48, 635 (2017)

S.Valdre, S.Piantelli, G.Casini, S.Barlini, M.Ciemala, M.Kmiecik, A.Maj, K.Mazurek, M.Cinausero, F.Gramegna, V.L.Kravchuk, L.Morelli, T.Marchi, S.Appannababu, G.Baiocco, P.Bednarczyk, G.Benzoni, M.Bini, N.Blasi, A.Bracco, S.Brambilla, M.Bruno, F.Camera, M.Cicerchia, M.Colonna, F.C.L.Crespi, M.D'Agostino, M.Degerlier, D.Fabris, B.Fornal, O.V.Fotina, A.Giaz, M.Krzysiek, S.Leoni, J.Mabiala, M.Matejska-Minda, W.Meczynski, B.Million, D.Montanari, S.Myalski, R.Nicolini, A.Olmi, G.Pasquali, G.Prete, J.Styczen, B.Szpak, E.Vardaci, B.Wasilewska, O.Wieland, M.Zieblinski

Constraining Hot Sources in Central Heavy-ion Collisions Below 20 MeV/u

doi: 10.5506/APhysPolB.48.635
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2017VO01      Phys.Rev. C 95, 024316 (2017)

A.Vogt, B.Birkenbach, P.Reiter, A.Blazhev, M.Siciliano, K.Hadynska-Klek, J.J.Valiente-Dobon, C.Wheldon, E.Teruya, N.Yoshinaga, K.Arnswald, D.Bazzacco, M.Bowry, A.Bracco, B.Bruyneel, R.S.Chakrawarthy, R.Chapman, D.Cline, L.Corradi, F.C.L.Crespi, M.Cromaz, G.de Angelis, J.Eberth, P.Fallon, E.Farnea, E.Fioretto, S.J.Freeman, B.Fu, A.Gadea, K.Geibel, W.Gelletly, A.Gengelbach, A.Giaz, A.Gorgen, A.Gottardo, A.B.Hayes, H.Hess, R.Hirsch, H.Hua, P.R.John, J.Jolie, A.Jungclaus, L.Kaya, W.Korten, I.Y.Lee, S.Leoni, L.Lewandowski, X.Liang, S.Lunardi, A.O.Macchiavelli, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, C.Muller-Gatermann, D.Napoli, C.J.Pearson, L.Pellegri, Zs.Podolyak, G.Pollarolo, A.Pullia, M.Queiser, F.Radeck, F.Recchia, P.H.Regan, D.Rosiak, N.Saed-Samii, E.Sahin, F.Scarlassara, D.Schneiders, M.Seidlitz, B.Siebeck, G.Sletten, J.F.Smith, P.-A.Soderstrom, A.M.Stefanini, T.Steinbach, O.Stezowski, S.Szilner, B.Szpak, R.Teng, C.Ur, V.Vandone, D.D.Warner, A.Wiens, C.Y.Wu, K.O.Zell

Isomers and high-spin structures in the N=81 isotones 135Xe and 137Ba

NUCLEAR REACTIONS 238U(136Xe, X), E=1 GeV; 208Pb(136Xe, X), E=930 MeV; 198Pt(136Xe, X), E=850 MeV; 130Te(11B, 3np)137Ba, E=54 MeV; measured reaction products, Eγ, Iγ, (particle)γ-coin, γγ-coin, (TKEL)γ-coin, half-lives of isomers by γγ(t). Four experiments carried out using 136Xe beam with 208Pb and 238U targets using PRISMA magnetic mass spectrometer and AGATA demonstrator array at Legnaro PIAVE+ALPI accelerator, 136Xe beam with 198Pt target using GAMMASPHERE and CHICO particle detector arrays at LBNL-cyclotron facility, and 11B beam with 130Te target using HORUS array at Cologne FN Tandem accelerator. 135Xe, 137Ba; deduced levels, J, π, isomers, configurations, B(E2). Comparison with shell-model calculations. Systematics of levels and isomers in N=81 nuclides 131Sn, 133Te, 135Xe, 137Ba, 139Ce, 141Nd, 143Sm and 145Gd.

NUCLEAR STRUCTURE 135Xe, 137Ba; calculated levels, J, π, B(E2) using large-scale shell-model with PQM130 and SN100PN interactions, average proton occupation numbers in each single particle orbit of the gdsh model space. Comparison with experimental data.

doi: 10.1103/PhysRevC.95.024316
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2017VO06      Phys.Rev. C 96, 024321 (2017)

A.Vogt, M.Siciliano, B.Birkenbach, P.Reiter, K.Hadynska-Klek, C.Wheldon, J.J.Valiente-Dobon, E.Teruya, N.Yoshinaga, K.Arnswald, D.Bazzacco, A.Blazhev, A.Bracco, B.Bruyneel, R.S.Chakrawarthy, R.Chapman, D.Cline, L.Corradi, F.C.L.Crespi, M.Cromaz, G.de Angelis, J.Eberth, P.Fallon, E.Farnea, E.Fioretto, C.Fransen, S.J.Freeman, B.Fu, A.Gadea, W.Gelletly, A.Giaz, A.Gorgen, A.Gottardo, A.B.Hayes, H.Hess, R.Hetzenegger, R.Hirsch, H.Hua, P.R.John, J.Jolie, A.Jungclaus, V.Karayonchev, L.Kaya, W.Korten, I.Y.Lee, S.Leoni, X.Liang, S.Lunardi, A.O.Macchiavelli, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, C.Muller-Gatermann, D.Napoli, C.J.Pearson, Zs.Podolyak, G.Pollarolo, A.Pullia, M.Queiser, F.Recchia, P.H.Regan, J.-M.Regis, N.Saed-Samii, E.Sahin, F.Scarlassara, M.Seidlitz, B.Siebeck, G.Sletten, J.F.Smith, P.-A.Soderstrom, A.M.Stefanini, O.Stezowski, S.Szilner, B.Szpak, R.Teng, C.Ur, D.D.Warner, K.Wolf, C.Y.Wu, K.O.Zell

High-spin structures in 132Xe and 133Xe and evidence for isomers along the N=79 isotones

NUCLEAR REACTIONS 208Pb(136Xe, X)132Xe/133Xe, E=6.84 MeV/nucleon from the PIAVE+ALPI accelerator complex at LNL-Legnaro; 198Pt(136Xe, X)132Xe/133Xe, E=6.25 MeV/nucleon from the LBNL cyclotron facility; 130Te(α, nγ), (α, 2nγ), E=19 MeV from Cologne FN Tandem accelerator; measured Eγ, Iγ, γγ-, (particle)γ-coin using Advanced GAmma Tracking Array (AGATA) in a demonstrator configuration, and magnetic spectrometer PRISMA for particle identification, (particle)γ-coin using Gammasphere array and CHICO gas-detector array, γγ(θ) using HORUS array at Cologne. 132,133Xe; deduced high-spin levels, J, π, half-life of a micro-sec isomer in 133Xe with Jπ=(23/2+), multipolarities, mixing ratios. Comparison with shell-model calculations using PQM130 and SN100PN interactions. Systematics of level energies in N=78 and 79 isotones from Z=50 to 64, and even-A A=120-136 Xe isotopes.

doi: 10.1103/PhysRevC.96.024321
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2016BO19      Phys.Lett. B 760, 273 (2016)

G.Bocchi, S.Leoni, B.Fornal, G.Colo, P.F.Bortignon, S.Bottoni, A.Bracco, C.Michelagnoli, D.Bazzacco, A.Blanc, G.de France, M.Jentschel, U.Koster, P.Mutti, J.-M.Regis, G.Simpson, T.Soldner, C.A.Ur, W.Urban, L.M.Fraile, R.Lozeva, B.Belvito, G.Benzoni, A.Bruce, R.Carroll, N.Cieplicka-Orynczak, F.C.L.Crespi, F.Didierjean, J.Jolie, W.Korten, T.Kroll, S.Lalkovski, H.Mach, N.Marginean, B.Melon, D.Mengoni, B.Million, A.Nannini, D.Napoli, B.Olaizola, V.Paziy, Zs.Podolyak, P.H.Regan, N.Saed-Samii, B.Szpak, V.Vedia

The mutable nature of particle-core excitations with spin in the one-valence-proton nucleus 133Sb

NUCLEAR REACTIONS 235U, 241Pu(n, F)133Sb, E low; measured fission products, Eγ, Iγ; deduced energy levels, J, π, level T1/2, B(Eλ). Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2016.06.065
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2016CI02      Phys.Rev. C 93, 054302 (2016)

N.Cieplicka-Orynczak, B.Fornal, S.Leoni, D.Bazzacco, A.Blanc, G.Bocchi, S.Bottoni, G.de France, M.Jentschel, U.Koster, P.Mutti, G.Simpson, T.Soldner, B.Szpak, C.Ur, W.Urban

Approaching complete low-spin spectroscopy of 210Bi with a cold-neutron capture reaction

NUCLEAR REACTIONS 209Bi(n, γ), E=cold neutrons from PF1B facility; measured Eγ, Iγ, γγ-coin, γγ(θ) using EXILL array at ILL-Grenoble. 210Bi; deduced levels, J, π, configurations, branching ratios, multipolarities, mixing ratios, energy-spin distribution of states, single particle-phonon excitations. Comparison with shell-model calculations using OXBASH code.

NUCLEAR STRUCTURE 210Bi; calculated levels, J, π, configurations, amplitudes using shell-model OXBASH code with residual interaction of Kuo and Herling as modified by Warburton and Brown. Comparison with the present experimental data, and with evaluated data in NuDat2 database.

doi: 10.1103/PhysRevC.93.054302
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2016CI04      Phys.Rev. C 94, 014311 (2016)

N.Cieplicka-Orynczak, B.Szpak, S.Leoni, B.Fornal, D.Bazzacco, A.Blanc, G.Bocchi, S.Bottoni, G.de France, M.Jentschel, U.Koster, P.Mutti, G.Simpson, T.Soldner, C.Ur, W.Urban

Multipolarity of the 2- → 1-, ground-state transition in 210Bi via multivariable angular correlation analysis

NUCLEAR REACTIONS 209Bi(n, γ), E=cold-neutron from PF1B facility of ILL-Greboble; measured primary and secondary Eγ, Iγ, γγ-coin, γγ(θ). 210Pb; deduced levels, J, π, E2/M1 mixing ratios, multipolarity and mixing ratio of 2- to 1-, 320-keV transition by minimization of a multivariable χ2 cost function procedure applied to γγ(θ) data, capture σ; estimated production of 210Po daughter, and short-term radiotoxicity of nuclear reactors or accelerator driven systems with Pb-Bi coolant.

doi: 10.1103/PhysRevC.94.014311
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2016VA03      Phys.Rev. C 93, 034617 (2016)

S.Valdre, S.Piantelli, G.Casini, S.Barlini, S.Carboni, M.Ciemala, M.Kmiecik, A.Maj, K.Mazurek, M.Cinausero, F.Gramegna, V.L.Kravchuk, L.Morelli, T.Marchi, G.Baiocco, L.Bardelli, P.Bednarczyk, G.Benzoni, M.Bini, N.Blasi, A.Bracco, S.Brambilla, M.Bruno, F.Camera, A.Chbihi, A.Corsi, F.C.L.Crespi, M.D'Agostino, M.Degerlier, D.Fabris, B.Fornal, A.Giaz, M.Krzysiek, S.Leoni, M.Matejska-Minda, I.Mazumdar, W.Meczynski, B.Million, D.Montanari, S.Myalski, R.Nicolini, A.Olmi, G.Pasquali, G.Prete, O.J.Roberts, J.Styczen, B.Szpak, B.Wasilewska, O.Wieland, J.P.Wieleczko, M.Zieblinski

Charged particle decay of hot and rotating 88Mo nuclei in fusion-evaporation reactions

NUCLEAR REACTIONS 40Ca(48Ti, X)88Mo*, E=300, 450, 600 MeV; measured Fusion-evaporation (FE) and fusion-fission (FF) events, evaporation residue (ER) velocity and angular distributions, center-of-mass energy spectra for protons, α, and light-charged particles (LCP) using Garfield setup coupled to a wall of phoswich telescopes of Fiasco device at LLNL-Legnaro facility; deduced yrast line parameterization for 88Mo nuclei as a function of their angular momentum, differential cross section as function of polar angle, particle multiplicities, absolute fusion-evaporation and fusion-fission cross sections. Comparison with statistical model simulations using GEMINI++ code.

doi: 10.1103/PhysRevC.93.034617
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2016VO04      Phys.Rev. C 93, 054325 (2016)

A.Vogt, B.Birkenbach, P.Reiter, A.Blazhev, M.Siciliano, J.J.Valiente-Dobon, C.Wheldon, D.Bazzacco, M.Bowry, A.Bracco, B.Bruyneel, R.S.Chakrawarthy, R.Chapman, D.Cline, L.Corradi, F.C.L.Crespi, M.Cromaz, G.de Angelis, J.Eberth, P.Fallon, E.Farnea, E.Fioretto, S.J.Freeman, A.Gadea, K.Geibel, W.Gelletly, A.Gengelbach, A.Giaz, A.Gorgen, A.Gottardo, A.B.Hayes, H.Hess, H.Hua, P.R.John, J.Jolie, A.Jungclaus, W.Korten, I.Y.Lee, S.Leoni, X.Liang, S.Lunardi, A.O.Macchiavelli, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, D.Napoli, C.J.Pearson, L.Pellegri, Zs.Podolyak, G.Pollarolo, A.Pullia, F.Radeck, F.Recchia, P.H.Regan, E.Sahin, F.Scarlassara, G.Sletten, J.F.Smith, P.-A.Soderstrom, A.M.Stefanini, T.Steinbach, O.Stezowski, S.Szilner, B.Szpak, R.Teng, C.Ur, V.Vandone, D.Ward, D.D.Warner, A.Wiens, C.Y.Wu

High-spin structure of 134Xe

NUCLEAR REACTIONS 198Pt(136Xe, 134Xe), E=850 MeV; 208Pb(136Xe, 134Xe), E=930 MeV; 238U(136Xe, 134Xe), E=1 GeV; measured Eγ, Iγ, γγ-coin, γ(θ), time-of-flight total kinetic energy loss (TKEL) using Gammasphere and Chico arrays at LBNL cyclotron facility for the 198Pt+136Xe reaction, and PRISMA spectrometer, Dante and AGATA arrays at PIAVE+ALPI accelerator complex for the 208Pb+136Xe and 238U+136Xe reactions. 134Xe; deduced high-spin levels, J, π, multipolarity, configurations. Comparison with shell-model calculations using the jj55 effective interaction.

doi: 10.1103/PhysRevC.93.054325
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2015BI08      Phys.Rev. C 92, 044319 (2015)

B.Birkenbach, A.Vogt, K.Geibel, F.Recchia, P.Reiter, J.J.Valiente-Dobon, D.Bazzacco, M.Bowry, A.Bracco, B.Bruyneel, L.Corradi, F.C.L.Crespi, G.de Angelis, P.Desesquelles, J.Eberth, E.Farnea, E.Fioretto, A.Gadea, A.Gengelbach, A.Giaz, A.Gorgen, A.Gottardo, J.Grebosz, H.Hess, P.R.John, J.Jolie, D.S.Judson, A.Jungclaus, W.Korten, S.Lenzi, S.Leoni, S.Lunardi, R.Menegazzo, D.Mengoni, C.Michelagnoli, T.Mijatovic, G.Montagnoli, D.Montanari, D.Napoli, L.Pellegri, G.Pollarolo, A.Pullia, B.Quintana, F.Radeck, D.Rosso, E.Sahin, M.D.Salsac, F.Scarlassara, P.-A.Soderstrom, A.M.Stefanini, T.Steinbach, O.Stezowski, S.Szilner, B.Szpak, Ch.Theisen, C.Ur, V.Vandone, A.Wiens

Spectroscopy of the neutron-rich actinide nucleus 240U following multinucleon-transfer reactions

NUCLEAR REACTIONS 238U(70Zn, X), E=460 MeV; 238U(136Xe, X), E=1 GeV; measured Eγ, Iγ, (reaction products)γ-, γγ-coin, TKEL spectrum using PRISMA magnetic spectrometer, DANTE particle-detector array, and CLARA, AGATA γ arrays at INFN-LNL Legnaro facility. 240U; deduced levels, J, π, bands, kinetic moment of inertia, staggering in bands for 236,238,240U. Comparison of level structure with predictions of cluster model, macroscopic-microscopic approach, and dynamical coupling model. Comparison of moment of inertia with theoretical predictions using CRHB+LN(NL1) and CRHB+LN(NL3*) calculations.

doi: 10.1103/PhysRevC.92.044319
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2015BO11      Phys.Rev. C 92, 024322 (2015)

S.Bottoni, S.Leoni, B.Fornal, R.Raabe, K.Rusek, G.Benzoni, A.Bracco, F.C.L.Crespi, A.I.Morales, P.Bednarczyk, N.Cieplicka-Orynczak, W.Krolas, A.Maj, B.Szpak, M.Callens, J.Bouma, J.Elseviers, H.De Witte, F.Flavigny, R.Orlandi, P.Reiter, M.Seidlitz, N.Warr, B.Siebeck, S.Hellgartner, D.Mucher, J.Pakarinen, M.Vermeulen, C.Bauer, G.Georgiev, R.V.F.Janssens, D.Balabanski, M.Sferrazza, M.Kowalska, E.Rapisarda, D.Voulot, M.Lozano Benito, F.Wenander

Cluster-transfer reactions with radioactive beams: A spectroscopic tool for neutron-rich nuclei

NUCLEAR REACTIONS 7Li(98Rb, xnα), (98Rb, xnt), E=279 MeV; measured Eγ, (7Li)γ-, αγ-, tγ-coin, differential σ(θ), absolute cross sections for triton and α transfers using MINIBALL Ge array and Si detector system T-REX at REX-ISOLDE-CERN facility. Cluster-transfer reactions. DWBA calculations using FRESCO code. 98Rb, 98,99Sr, 99,100Y, 100Zr; observed γ rays in particle-γ-coin spectra and γγ-coin spectra.

doi: 10.1103/PhysRevC.92.024322
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2015CI04      Phys.Rev. C 91, 054313 (2015)

M.Ciemala, M.Kmiecik, A.Maj, K.Mazurek, A.Bracco, V.L.Kravchuk, G.Casini, S.Barlini, G.Baiocco, L.Bardelli, P.Bednarczyk, G.Benzoni, M.Bini, N.Blasi, S.Brambilla, M.Bruno, F.Camera, S.Carboni, M.Cinausero, A.Chbihi, M.Chiari, A.Corsi, F.C.L.Crespi, M.D'Agostino, M.Degerlier, B.Fornal, A.Giaz, F.Gramegna, M.Krzysiek, S.Leoni, T.Marchi, M.Matejska-Minda, I.Mazumdar, W.Meczynski, B.Million, D.Montanari, L.Morelli, S.Myalski, A.Nannini, R.Nicolini, G.Pasquali, S.Piantelli, G.Prete, O.J.Roberts, Ch.Schmitt, J.Styczen, B.Szpak, S.Valdre, B.Wasilewska, O.Wieland, J.P.Wieleczko, M.Zieblinski, J.Dudek, N.Dinh Dang

Giant dipole resonance built on hot rotating nuclei produced during evaporation of light particles from the 88Mo compound nucleus

NUCLEAR REACTIONS 40Ca(48Ti, X)88Mo*, E=300, 600 MeV; measured Eγ, Iγ, Eα, Iα, Ep, Ip, nuclear products, light charged particles (LCP) and light reaction fragment spectra using GARFIELD array for particles and HECTOR array for γ rays, angular distributions of the evaporation residues, time-of-flight at TANDEM+ALPI accelerator of Legnaro; deduced GDR parameters, centroid energies, widths and strengths, yields, distribution of nuclei as function of nuclear temperature, temperature distributions of the number of nuclei after the GDR emission. Comparison with statistical code GEMINI++ model calculations.

doi: 10.1103/PhysRevC.91.054313
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2015LE03      Acta Phys.Pol. B46, 637 (2015)

S.Leoni, G.Bocchi, S.Bottoni, D.Bazzacco, N.Cieplicka, B.Fornal, B.Szpak, C.Michelagnoli, A.Blanc, G.De France, M.Jentschel, U.Koster, R.Lozeva, P.Mutti, T.Soldner, G.Simpson, C.Ur, W.Urban

Particle-core Couplings Close to Neutron-rich Doubly-magic Nuclei

NUCLEAR REACTIONS 235U, 241Pu(n, F)132Te/133Sb/130Sn/210Bi, E low; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, partial level scheme.

doi: 10.5506/APhysPolB.46.637
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2015SH13      Acta Phys.Pol. B46, 619 (2015)

C.M.Shand, E.Wilson, Zs.Podolyak, H.Grawe, B.A.Brown, B.Fornal, R.V.F.Janssens, M.Bowry, M.Bunce, M.P.Carpenter, R.J.Carroll, C.J.Chiara, N.Cieplicka-Orynczak, A.Y.Deo, G.D.Dracoulis, C.R.Hoffman, R.S.Kempley, F.G.Kondev, G.J.Lane, T.Lauritsen, G.Lotay, M.W.Reed, P.H.Regan, C.Rodriguez Triguero, D.Seweryniak, B.Szpak, P.M.Walker, S.Zhu

Structure of 207Pb Populated in 208Pb + 208Pb Deep-inelastic Collisions

NUCLEAR REACTIONS 208Pb(208Pb, X)207Pb, E=1446 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, angular distributions of transitions, multipolarities, J, π. Comparison with shell model calculations.

doi: 10.5506/APhysPolB.46.619
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2015VO11      Phys.Rev. C 92, 024619 (2015)

A.Vogt, B.Birkenbach, P.Reiter, L.Corradi, T.Mijatovic, D.Montanari, S.Szilner, D.Bazzacco, M.Bowry, A.Bracco, B.Bruyneel, F.C.L.Crespi, G.de Angelis, P.Desesquelles, J.Eberth, E.Farnea, E.Fioretto, A.Gadea, K.Geibel, A.Gengelbach, A.Giaz, A.Gorgen, A.Gottardo, J.Grebosz, H.Hess, P.R.John, J.Jolie, D.S.Judson, A.Jungclaus, W.Korten, S.Leoni, S.Lunardi, R.Menegazzo, D.Mengoni, C.Michelagnoli, G.Montagnoli, D.Napoli, L.Pellegri, G.Pollarolo, A.Pullia, B.Quintana, F.Radeck, F.Recchia, D.Rosso, E.Sahin, M.D.Salsac, F.Scarlassara, P.-A.Soderstrom, A.M.Stefanini, T.Steinbach, O.Stezowski, B.Szpak, Ch.Theisen, C.Ur, J.J.Valiente-Dobon, V.Vandone, A.Wiens

Light and heavy transfer products in 136Xe + 238U multinucleon transfer reactions

NUCLEAR REACTIONS 238U(136Xe, F)130Ba/131Ba/132Ba/133Ba/134Ba/135Ba/136Ba/137Ba/138Ba/139Ba/140Ba/141Ba/142Ba/143Ba/144Ba, 123Cs/124Cs/125Cs/126Cs/127Cs/128Cs/129Cs/130Cs/131Cs/132Cs/133Cs/134Cs/135Cs/136Cs/137Cs/138Cs/139Cs/140Cs/141Cs/142Cs/143Cs/126Xe/127Xe/128Xe/129Xe/130Xe/131Xe/132Xe/133Xe/134Xe/135Xe/136Xe/137Xe/138Xe/139Xe/140Xe/141Xe/142Xe/122I/123I/124I/125I/126I/127I/128I/129I/130I/131I/132I/133I/134I/135I/136I/137I/138I/139I/140I/141I/121Te/122Te/123Te/124Te/125Te/126Te/127Te/128Te/129Te/130Te/131Te/132Te/133Te/134Te/135Te/136Te/236U/237U/238U/239U/240U/Th/Ac/Np/Pu, E=1 GeV; measured projectile-like reaction products, Doppler-corrected Eγ, Iγ, (particle)γ-coin, E(x ray), I(x ray) for Z=89-94 products, yield distribution of Z=31-57 products, mass spectra for Te to Ba region, σ, time-of-flight difference spectrum using PRISMA magnetic spectrometer, multichannel-plate detector DANTE, and Advanced Gamma Tracking Array (AGATA) at PIAVE-ALPI accelerator complex of INFN-LNL-Lenargo; deduced Matrix of time difference between PRISMA and DANTE as function of the total kinetic energy loss (TKEL) for particle transfer, fission, and elastically scattered 136Xe events, mass-integrated yields of actinide nuclei. 74Ge(n, n'γ), E=transfer neutrons; measured Iγ of neutron-induced background radiation with gates on the transfer- and fission-like Δ(TOF) peak. 236,238U; deduced levels J, π, rotational bands. 239U; observed γ-rays. Comparison with coupled-channel semiclassical calculations using GRAZING code.

doi: 10.1103/PhysRevC.92.024619
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2015WI05      Phys.Lett. B 747, 88 (2015)

E.Wilson, Zs.Podolyak, H.Grawe, B.A.Brown, C.J.Chiara, S.Zhu, B.Fornal, R.V.F.Janssens, C.M.Shand, M.Bowry, M.Bunce, M.P.Carpenter, N.Cieplicka-Orynczak, A.Y.Deo, G.D.Dracoulis, C.R.Hoffman, R.S.Kempley, F.G.Kondev, G.J.Lane, T.Lauritsen, G.Lotay, M.W.Reed, P.H.Regan, C.Rodriguez Triguero, D.Seweryniak, B.Szpak, P.M.Walker

Core excitations across the neutron shell gap in 207Tl

NUCLEAR REACTIONS 208Pb(208Pb, X)207Tl, E=1446 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, J, π. Comparison with shell-model calculations.

doi: 10.1016/j.physletb.2015.04.055
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2015WR02      Phys.Rev. C 92, 044327 (2015)

J.Wrzesinski, G.J.Lane, K.H.Maier, R.V.F.Janssens, G.D.Dracoulis, R.Broda, A.P.Byrne, M.P.Carpenter, R.M.Clark, M.Cromaz, B.Fornal, T.Lauritsen, A.O.Macchiavelli, M.Rejmund, B.Szpak, K.Vetter, S.Zhu

High-spin yrast structure of 204Hg from the decay of a four-hole, 22+ isomer

NUCLEAR REACTIONS 238U(208Pb, X), E=1360 MeV; 238U(48Ca, X), E=330 MeV; 238U(208Pb, X), E=1450 MeV; measured Eγ, in-beam and off-beam Iγ, γγ-coin, γγ(θ), half-lives of isomers by γγ(t) using Gammasphere array at ATLAS-ANL. 204Hg; deduced high-spin levels, J, π, isomers, internal conversion coefficients from intensity balances, multipolarities, configurations, B(M1), B(E1), B(E2), B(E3). Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.92.044327
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2014BO09      Acta Phys.Pol. B45, 343 (2014)

S.Bottoni, S.Leoni, B.Fornal, R.Raabe, G.Benzoni, A.Bracco, F.C.L.Crespi, A.Morales, B.Bednarczyk, N.Cieplicka, W.Krolas, A.Maj, B.Szpak, M.Callens, J.Bouma, J.Elseviers, F.Falvigny, R.Orlandi, K.Rusek, P.Reiter, M.Seidlitz, S.Klupp, D.Mucher, G.Georgiev, D.Balabanski, M.Sferrazza, M.Kowalska, E.Rapisarda

γ Spectroscopy of Neutron-rich Nuclei with A ≈ 100 Produced by Cluster Transfer Reactions at REX-ISOLDE

NUCLEAR REACTIONS 7Li(98Rb, X)98Sr/99Sr/99Y/100Y, (98Sr, X)99Y/100Zr, E=2.85 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced cluster-transfer mechanisms.

doi: 10.5506/APhysPolB.45.343
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2014CI03      Acta Phys.Pol. B45, 205 (2014)

N.Cieplicka, B.Fornal, K.H.Maier, B.Szpak, R.Broda, W.Krolas, T.Pawlat, J.Wrzesinski, R.V.F.Janssens, M.P.Carpenter, C.J.Chiara, C.R.Hoffman, F.G.Kondev, T.Lauritsen, S.Zhu, Zs.Podolyak, M.Bowry, M.Bunce, W.Gelletly, R.Kempley, M.Reed, P.Regan, P.Walker, E.Wilson, A.Y.Deo, G.Dracoulis, G.Lane, C.Rodriguez Triguero

Angular Distributions of γ-Rays from 210Bi Produced in 208Pb+208Pb Deep-inelastic Reactions

NUCLEAR REACTIONS 208Pb(208Pb, X)210Bi, E=1446 MeV; measured reaction products, Eγ, Iγ; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, γ-rays σ(θ).

doi: 10.5506/APhysPolB.45.205
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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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2013DU07      Phys.Scr. T154, 014002 (2013)

J.Dudek, B.Szpak, B.Fornal, A.Dromard

Predictive power and theoretical uncertainties of mathematical modelling for nuclear physics

NUCLEAR STRUCTURE 16O, 40,48Ca, 56Ni, 90Zr, 100,132Sn, 208Pb; calculated level energies, J, π, proton radius and their uncertainties. Comparison with available data.

doi: 10.1088/0031-8949/2013/T154/014002
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2013WI01      Acta Phys.Pol. B44, 381 (2013)

E.Wilson, Zs.Podolyak, B.Fornal, R.V.F.Janssens, M.Bowry, M.Bunce, M.P.Carpenter, C.J.Chiara, N.Cieplicka, A.Y.Deo, G.D.Dracoulis, H.Grawe, C.R.Hoffman, R.S.Kempley, F.G.Kondev, G.J.Lane, T.Lauritsen, M.W.Reed, P.H.Regan, C.Rodriguez Triguero, B.Szpak, P.M.Walker, S.Zhu

Core Excitations Across the Neutron Shell Gap in 207Tl

NUCLEAR REACTIONS 208Pb(208Pb, X)207Tl/209Bi, E=1446 MeV; measured reaction products, Eγ, Iγ, γ-γ-γ-coin.; deduced transition energies and intensities. Comparison with available data.

doi: 10.5506/APhysPolB.44.381
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2012CI05      Phys.Rev. C 86, 054322 (2012)

N.Cieplicka, K.H.Maier, B.Fornal, B.Szpak, R.V.F.Janssens, M.Alcorta, R.Broda, M.P.Carpenter, C.J.Chiara, C.R.Hoffman, 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, W.B.Walters, J.Wrzesinski, S.Zhu

Yrast structure of 206Bi: Isomeric states and one-proton-particle, three-neutron-hole excitations

NUCLEAR REACTIONS 208Pb(76Ge, X), E=450 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. 206Bi; deduced levels, J, π, T1/2, multipolarity, mixing ratio, configurations. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.86.054322
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2012DU12      Int.J.Mod.Phys. E21, 1250053 (2012)

J.Dudek, B.Szpak, A.Dromard, M.-G.Porquet, B.Fornal, A.Gozdz

Nuclear physics Hamiltonians, inverse problem and the related issue of predictive power

doi: 10.1142/S021830131250053X
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2011BR12      Phys.Rev. C 84, 014330 (2011)

R.Broda, K.H.Maier, B.Fornal, J.Wrzesinski, B.Szpak, M.P.Carpenter, R.V.F.Janssens, W.Krolas, T.Pawlat, S.Zhu

High-spin states and isomers in the one-proton-hole and three-neutron-hole 204Tl isotope

NUCLEAR REACTIONS 208Pb(48Ca, X), E=305; 238U(48Ca, X), E=330 MeV; measured Eγ, in-beam and off-beam Iγ, γγ-coin, γγ(t), isomer half-lives using Gammasphere array. 204Tl; deduced levels, J, π, conversion coefficients, multipolarity, B(M2), B(E3), configurations, octupole excitations. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.84.014330
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2011CI01      Acta Phys.Pol. B42, 633 (2011)

M.Ciemala, M.Kmiecik, V.L.Kravchuk, A.Maj, S.Barlini, G.Casini, F.Gramegna, F.Camera, A.Corsi, L.Bardelli, P.Bednarczyk, B.Fornal, M.Matejska-Minda, K.Mazurek, W.Meczynski, S.Myalski, J.Styczen, B.Szpak, M.Zieblinski, M.Cinausero, T.Marchi, V.Rizzi, G.Prete, M.Degerlier, G.Benzoni, N.Blasi, A.Bracco, S.Brambilla, F.Crespi, S.Leoni, B.Million, O.Wieland, D.Montanari, R.Nicolini, A.Giaz, V.Vandone, G.Baiocco, M.Bruno, M.D'Agostino, L.Morelli, G.Vannini, M.Chiari, A.Nannini, S.Piantelli, A.Chbihi, J.P.Wieleczko, I.Mazumdar, O.Roberts, J.Dudek

Search for Jacobi Shape Transition in Hot Rotating 88Mo Nuclei Through Giant Dipole Resonance Decay

NUCLEAR REACTIONS 40Ca(48Ti, X)88Mo, E=300, 450, 600 MeV; measured Eγ, Iγ; deduced increase of low-energy component of Giant Dipole Resonance strength function, possible existence of the Jacobi shape transition. Comparison with theoretical calculations.


2011KR12      Phys.Rev. C 84, 064301 (2011)

W.Krolas, R.Broda, B.Fornal, R.V.F.Janssens, A.Gadea, S.Lunardi, J.J.Valiente-Dobon, D.Mengoni, N.Marginean, L.Corradi, A.M.Stefanini, D.Bazzacco, M.P.Carpenter, G.De Angelis, E.Farnea, E.Fioretto, F.Galtarossa, T.Lauritsen, G.Montagnoli, D.R.Napoli, R.Orlandi, T.Pawlat, I.Pokrovskiy, G.Pollarolo, E.Sahin, F.Scarlassara, D.Seweryniak, S.Szilner, B.Szpak, C.A.Ur, J.Wrzesinski, S.Zhu

Coupling of the proton-hole and neutron-particle states in the neutron-rich 48K isotope

NUCLEAR REACTIONS 238U(48Ca, X)48K, E=330 MeV; measured Eγ, Iγ, γγ-coin, γγ(t), recoil-distance Doppler-shifts using plunger device, half-lives. 48K; deduced levels, isomer, J, π, branching ratios, configurations, B(M1), B(M2), B(E3). Gammasphere array and PRISMA-CLARA spectrometer. Comparison with shell model calculations. Comparison of B(M2), B(E3) values with isomer in 47K.

doi: 10.1103/PhysRevC.84.064301
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2011SZ01      Phys.Rev. C 83, 064315 (2011)

B.Szpak, K.H.Maier, A.S.Smolkowska, B.Fornal, R.Broda, M.P.Carpenter, N.Cieplicka, R.V.F.Janssens, W.Krolas, T.Pawlat, J.Wrzesinski, S.Zhu

Yrast structure of the two-proton- and three-neutron-hole nucleus 203Hg from the decay of a 53/2+ isomer

NUCLEAR REACTIONS 208Pb, 238U(40Ca, X), E=305, 330 MeV; measured Eγ, Iγ, γγ-coin, prompt and delayed γ spectra, isomer half-lives by γ(t) using Gammasphere array. 203Hg; deduced high-spin levels, isomers, J, π, total conversion coefficients, multipolarities, configurations. Comparison with shell model calculations.

doi: 10.1103/PhysRevC.83.064315
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2010BR14      Phys.Rev. C 82, 034319 (2010)

R.Broda, J.Wrzesinski, A.Gadea, N.Marginean, B.Fornal, L.Corradi, A.M.Stefanini, W.Krolas, T.Pawlat, B.Szpak, S.Lunardi, J.J.Valiente-Dobon, D.Mengoni, E.Farnea, M.P.Carpenter, G.De Angelis, F.Della Vedova, E.Fioretto, B.Guiot, R.V.F.Janssens, P.F.Mantica, P.Mason, G.Montagnoli, D.R.Napoli, R.Orlandi, I.Pokrovskiy, G.Pollarolo, E.Sahin, F.Scarlassara, R.Silvestri, S.Szilner, C.A.Ur, M.Trotta, S.Zhu

Proton-hole states in the N=30 neutron-rich isotope 49K

NUCLEAR REACTIONS 238U(48Ca, X), E=330 MeV; measured Eγ, Iγ, γγ-coin, and half-lives by RDDS Plunger method using PRISMA-CLARA spectrometer and Gammasphere array. 49K; deduced levels, J, π. Systematics of 39,41,43,45,47,49K nuclei. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.82.034319
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2010DU04      Int.J.Mod.Phys. E19, 652 (2010)

J.Dudek, K.Rybak, B.Szpak, M.-G.Porquet, H.Molique, B.Fornal

Nuclear mean-field Hamiltonians and factors limiting their predictive power

NUCLEAR STRUCTURE 40Ca; calculated single-particle levels for protons and neutrons.

doi: 10.1142/S0218301310015060
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2010SZ01      Int.J.Mod.Phys. E19, 665 (2010)

B.Szpak, J.Dudek, M.-G.Porquet, K.Rybak, H.Molique, B.Fornal

Nuclear mean-field Hamiltonians and factors limiting their spectroscopic predictive power: Illustrations

NUCLEAR STRUCTURE 208Pb; calculated single-particle energies, set of neutron parameters of the Woods-saxon Hamiltonian.

doi: 10.1142/S0218301310015072
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