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NSR database version of May 24, 2024.

Search: Author = L.Prochniak

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2022GR05      Phys.Rev. C 106, 014318 (2022)

E.Grodner, M.Kowalczyk, M.Kisielinski, J.Srebrny, L.Prochniak, Ch.Droste, S.G.Rohozinski, Q.B.Chen, M.Ionescu-Bujor, C.A.Ur, F.Recchia, J.Meng, S.Q.Zhang, P.W.Zhao, G.Georgiev, R.Lozeva, E.Fiori, S.Aydin, A.Nalecz-Jawecki

Examination of nuclear chirality with a magnetic moment measurement of the I=9 isomeric state in 128Cs

NUCLEAR MOMENTS 128mCs; measured Eγ, γ-intensity oscillation spectra, oscillating ratios, Larmor frequency of precession with a magnetic field of about 0.7 T, time differential perturbed angular distribution (TDPAD) of γ rays from the isomer using 122Sn(10B, 4n)128Cs, E=55 MeV reaction at the Tandem accelerator of IPN Orsay; deduced g-factor and configuration of the isomeric 9+ bandhead of the yrast states. Comparison with theoretical predictions for shell-model configurations, and chiral interpretation of 128Cs nucleus as a composition of the odd proton, odd neutron, and even-even core with their angular momentum vectors.

NUCLEAR STRUCTURE 128Cs; calculated levels, J, π, bands, B(E2), B(M1), g factors using quantum angular momentum algebra and semiclassical calculations, in the framework of many-particle-many-hole Particle Triaxial Rotor Model. Evidence for the existence of chiral critical frequency, and absence of chiral doublet members for J<13 states.

doi: 10.1103/PhysRevC.106.014318
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2021SA33      Phys.Rev. C 104, 024322 (2021)

J.Samorajczyk-Pysk, Ch.Droste, L.Prochniak, J.Srebrny, S.G.Rohozinski, J.Andrzejewski, S.Dutt, A.Gawlik, K.Hadynska-Klek, L.Janiak, M.Klintefjord, M.Kowalczyk, J.Kowalska, R.Kumar, T.Marchlewski, P.J.Napiorkowski, J.Perkowski, W.Pikatek, M.Piersa-Silkowska, T.Roginski, M.Saxena, A.Stolarz, A.Tucholski

Low-spin levels in 140Sm: Five 0+ states and the question of softness against nonaxial deformation

RADIOACTIVITY 140Eu(EC), (β+)[from decay of 140Gd produced in 104Pd(40Ar, X), E=210 MeV from the U-200P cyclotron of University of Warsaw]; measured Eγ, Iγ, γγ-coin, γγ(θ) using EAGLE array of 12 Compton-suppressed HPGe detectors. 140Sm; deduced levels, J, π, multipolarities, B(E2) ratios. Comparison with full five-dimensional microscopic General Bohr Hamiltonian (GBH) and phenomenological gamma-soft Warsaw model calculations.

NUCLEAR STRUCTURE 140Sm; calculated potential energy surface (PES) in (β, γ) plane using the SLy4 Skyrme interaction and seniority-type pairing, levels, J, π, probability distributions for the five lowest 0+ states in the phenomenological and microscopic models, quadrupole invariants using full five-dimensional microscopic General Bohr Hamiltonian (GBH) and phenomenological gamma-soft Warsaw model calculations. Comparison with experimental data.

doi: 10.1103/PhysRevC.104.024322
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2020MO35      Phys.Rev. C 102, 054304 (2020)

L.Morrison, K.Hadynska-Klek, Zs.Podolyak, D.T.Doherty, L.P.Gaffney, L.Kaya, L.Prochniak, J.Samorajczyk-Pysk, J.Srebrny, T.Berry, A.Boukhari, M.Brunet, R.Canavan, R.Catherall, S.J.Colosimo, J.G.Cubiss, H.De Witte, Ch.Fransen, E.Giannopoulos, H.Hess, T.Kroll, N.Lalovic, B.Marsh, Y.Martinez Palenzuela, P.J.Napiorkowski, G.O'Neill, J.Pakarinen, J.P.Ramos, P.Reiter, J.A.Rodriguez, D.Rosiak, S.Rothe, M.Rudigier, M.Siciliano, J.Snall, P.Spagnoletti, S.Thiel, N.Warr, F.Wenander, R.Zidarova, M.Zielinska

Quadrupole deformation of 130Xe measured in a Coulomb-excitation experiment

NUCLEAR REACTIONS 94Mo(130Xe, 130Xe'), E=4.195 MeV/nucleon from HIE-ISOLDE-CERN linear accelerator; measured projectile-and target-like particles using a segmented double-sided silicon strip detector (DSSSD), Eγ, Iγ, γ(θ) (particle)γ- and (particle)(particle)γ-coin using Miniball array of 23 HPGe detectors. Measured Coulomb excitation yields analyzed using GOSIA least-squares fitting code. 130Xe; deduced levels, J, π, E2 and M1 matrix elements, B(E2), B(M1), spectroscopic quadrupole moments (Q) for the first 2+ and 4+ states and second 2+ state, and shape parameters for the 0+ ground state. Comparison with previous experimental data, and with several theoretical model calculations.

NUCLEAR STRUCTURE 130Xe; calculated levels, J, π using general Bohr Hamiltonian with the mean-field theory and Universal Nuclear Energy Density Functional (UNEDF0), shell-model with the GCN50:82 and SN100PN interactions, Davydov-Filippov and γ-soft phenomenological models; calculated quadrupole shape invariants for 0+ ground state and the first 2+ state using general Bohr Hamiltonian (GBH) model. Comparison with experimental data.

doi: 10.1103/PhysRevC.102.054304
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2020WR01      Acta Phys.Pol. B51, 789 (2020)

K.Wrzosek-Lipska, L.Prochniak, P.E.Garrett, S.W.Yates, J.L.Wood, P.J.Napiorkowski, T.Abraham, J.M.Allmond, F.L.Bello Garrote, H.Bidaman, V.Bildstein, C.Burbadge, M.Chiari, A.Diaz Varela, D.T.Doherty, S.Dutt, K.Hadynska-Klek, M.Hlebowicz, J.Iwanicki, B.Jigmeddorj, M.Kisielinski, M.Komorowska, M.Kowalczyk, R.Kumar, T.Marchlewski, M.Matejska-Minda, B.Olaizola, F.Oleszczuk, M.Palacz, E.Pasquali, E.E.Peters, M.Rocchini, E.Shin, M.Saxena, J.Srebrny, A.Tucholski

Quadrupole Deformation of 110Cd Studied with Coulomb Excitation

doi: 10.5506/APhysPolB.51.789
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2019SA62      Acta Phys.Pol. B50, 417 (2019)

M.Saxena, P.Napiorkowski, L.Prochniak, R.Kumar, A.Stolarz, K.Wrzosek-Lipska, T.Abraham, S.Dutt, M.Kicinska-Habior, M.Kisielinski, M.Komorowska, M.Kowalczyk, M.Matejska-Minda, M.Palacz, W.Piatek, J.Srebrny, A.Tucholski, H.-J.Wollersheim

Deformation in 120Te Described Experimentally by Quadrupole Invariants

NUCLEAR REACTIONS 120Te(32S, 32S'), E=90 MeV; 120Te(58Ni, 58Ni'), E=175 MeV; measured reaction products, Eγ, Iγ, (particle)γ-coin; deduced γ-ray transitions, levels, J, π, E2 matrix elements, spectroscopic quadrupole moments. EAGLE array consisting of 15 HPGe detectors with anti-Compton BGO shields and a compact Coulex chamber with 48 PIN diodes.

doi: 10.5506/aphyspolb.50.417
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2019TU09      Phys.Rev. C 100, 014330 (2019)

A.Tucholski, Ch.Droste, J.Srebrny, C.M.Petrache, J.Skalski, P.Jachimowicz, M.Fila, T.Abraham, M.Kisielinski, A.Kordyasz, M.Kowalczyk, J.Kownacki, T.Marchlewski, P.J.Napiorkowski, L.Prochniak, J.Samorajczyk-Pysk, A.Stolarz, A.Astier, B.F.Lv, E.Dupont, S.Lalkovski, P.Walker, E.Grodner, Z.Patyk

Lifetime of the recently identified 10+ isomeric state at 3279 keV in the 136Nd nucleus

NUCLEAR REACTIONS 120Sn(20Ne, 4n), E=85 MeV; measured Eγ, Iγ, γγ-coin, level half-lives using recoil-distance Doppler shift (RDDS) method with a plunger device using the EAGLE array of 16 HPGe detector at the U-200P cyclotron facility of the Heavy Ion Laboratory in Warsaw. 136Nd; deduced levels, B(E1), B(E2), reduced hindrance factor for the 10+ state at 3279 keV; calculated energy surface contour in (β20, β22) plane, neutron and proton single-particle energies using microscopic-macroscopic approach, based on deformed Woods-Saxon single-particle potential and the Yukawa-plus-exponential macroscopic energy.

doi: 10.1103/PhysRevC.100.014330
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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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2018GR01      Phys.Rev.Lett. 120, 022502 (2018)

E.Grodner, J.Srebrny, Ch.Droste, L.Prochniak, S.G.Rohozinski, M.Kowalczyk, M.Ionescu-Bujor, C.A.Ur, K.Starosta, T.Ahn, M.Kisielinski, T.Marchlewski, S.Aydin, F.Recchia, G.Georgiev, R.Lozeva, E.Fiori, M.Zielinska, Q.B.Chen, S.Q.Zhang, L.F.Yu, P.W.Zhao, J.Meng

First Measurement of the g Factor in the Chiral Band: The Case of the Cs128 Isomeric State

RADIOACTIVITY 128Cs(IT); measured decay products, Eγ, Iγ; deduced g factor, γ-ray energies, Larmor frequency of precession.

doi: 10.1103/PhysRevLett.120.022502
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2018MA47      Acta Phys.Pol. B49, 567 (2018)

M.Matejska-Minda, P.J.Napiorkowski, T.Abraham, P.Bednarczyk, A.Bezbakh, D.T.Doherty, K.Hadynska-Klek, J.Iwanicki, G.Kaminski, M.Kisielinski, M.Komorowska, M.Kowalczyk, M.Kicinska-Habior, R.Kumar, A.Maj, T.Marchlewski, P.Matuszczak, V.Nanal, A.Nannini, M.Palacz, L.Prochniak, M.Rocchini, M.Saxena, M.Siciliano, J.Srebrny, A.Stolarz, J.Styczen, B.Wasilewska, K.Wrzosek-Lipska, M.Zielinska

Electromagnetic Properties of 45Sc Studied by Low-energy Coulomb Excitation

NUCLEAR REACTIONS 45Sc(32S, γ), E=70 MeV; measured Coulomb excitation Eγ, Iγ ; deduced γ-ray transitions, 45Sc levels, J, π, B(E3 7/2- to 5/2+), B(E3 7/2- to 3/2+).

doi: 10.5506/aphyspolb.49.567
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2018SA37      Acta Phys.Pol. B49, 541 (2018)

M.Saxena, P.Napiorkowski, R.Kumar, L.Prochniak, A.Stolarz, T.Abraham, S.Dutt, M.Kicinska-Habior, M.Kisielinski, M.Komorowska, M.Kowalczyk, M.Matejska-Minda, M.Palacz, J.Srebrny, K.Wrzosek-Lipska, H.-J.Wollersheim

Evidence of Rotational Behaviour in 120Te Isotope

NUCLEAR REACTIONS 120Te(32S, x), E=90 MeV; measured 120Te recoils after Coulomb excitation Eγ, Iγ, (particle)γ-coin within 200 ns window using EAGLE array consisting of 15 HPGe detectors with anti-Compton BGO shields and a compact Coulex chamber with 48 PIN diodes for detection of back-scattered 32S ions; deduced multi-step Coulomb excitation of 120Te up to 4+ state in the gs band and to second 0+ and 2+ states; deduced background-subtracted Doppler-shift-corrected γ-ray energy spectrum summed over all EAGLE detectors for 32S+120Te system at 90 MeV, E2 matrix elements, B(E2), spectroscopic quadrupole moments; calculated E2 matrix elements, B(E2) using the GOSIA code; compared with Davydov-Fillipov and IBM-2 models calculations and with data.

doi: 10.5506/aphyspolb.49.541
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2017PE03      Phys.Rev. C 95, 014305 (2017)

J.Perkowski, J.Andrzejewski, Ch.Droste, L.Janiak, E.Grodner, S.G.Rohozinski, L.Prochniak, J.Srebrny, J.Samorajczyk-Pysk, T.Abraham, K.Hadynska-Klek, M.Kisielinski, M.Komorowska, M.Kowalczyk, J.Kownacki, T.Marchlewski, J.Mierzejewski, P.Napiorkowski, A.Stolarz, A.Korman, M.Zielinska

Decay of the Iπisomeric state in 134Nd and 184Pt studied by electron and gamma spectroscopy

RADIOACTIVITY 134Nd, 184Pt(IT)[from 122Te(16O, 4n), E=90 MeV and 175Lu(14N, 5n)184Pt, E=90 MeV at the Heavy Ion Laboratory of University of Warsaw]; measured Eγ, Iγ, ce, γγ- and γ(ce)-coin, isomer half-lives using EAGLE array for γ detection and conversion-electron spectrometers; deduced levels, J, π, K-isomers, K- and L-conversion coefficients, multipolarities, mixing ratios, B(E1), B(E2), B(E3), hindrance factors for γ transitions, alignments. Comparison with VMI plus two band mixing and the Davydov-Filippov model.

NUCLEAR STRUCTURE 134Nd, 184Pt; calculated mean-field collective potential energy surfaces in (β, γ) plane, Kπ=8- isomeric state; analyzed weakening of the K-forbiddenness by rotational K-mixing (Coriolis interaction), and triaxiality (Davydov-Fillipov model).

doi: 10.1103/PhysRevC.95.014305
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2016DU07      Acta Phys.Pol. B47, 917 (2016)

S.Dutt, P.J.Napiorkowski, T.Abraham, L.Janiak, M.Kisielinski, M.Komorowska, M.Kowalczyk, R.Kumar, T.Marchlewski, M.Matejska-Minda, M.Palacz, W.Piatek, L.Prochniak, I.A.Rizvi, J.Samorajczyk, M.Saxena, J.Srebrny, A.Tucholski W.Wroblewski, K.Wrzosek-Lipska, M.Zielinska

Nuclear Structure Study of 104Pd by Coulomb Excitation at the Warsaw Heavy Ion Laboratory

NUCLEAR REACTIONS 104Pd(32S, 32S'), E=91 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, B(E2) values.

doi: 10.5506/APhysPolB.47.917
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2016HA23      Phys.Rev.Lett. 117, 062501 (2016)

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

Superdeformed and Triaxial States in 42Ca

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

doi: 10.1103/PhysRevLett.117.062501
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2016KO13      Acta Phys.Pol. B47, 923 (2016)

M.Komorowska, M.Zielinska, P.Napiorkowski, D.T.Doherty, K.Wrzosek-Lipska, P.A.Butler, L.Prochniak, W.Korten, R.Briselet, H.De Witte, L.P.Gaffney, G.Georgiev, A.Goasduff, A.Gorgen, A.Gottardo, E.T.Gregor, K.Hadynska-Klek, H.Hess, M.Klintefjord, T.Konstantinopoulos, J.Ljungvall, R.Lutter, I.Matea, P.Matuszczak, G.G.O'Neill, W.Piatek, P.Reiter, D.Rosiak, M.Scheck, M.Seidlitz, B.Siebeck, M.Thurauf, N.Warr

Study of Octupole Collectivity in 146Nd and 148Sm Using the New Coulomb Excitation Set-up at ALTO

NUCLEAR REACTIONS 146Nd, 148Sm(58Ni, 58Ni'), (32S, 32S'), E=182, 104 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, nuclear matrix elements.

doi: 10.5506/APhysPolB.47.923
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2015KE06      Phys.Rev. C 92, 054301 (2015)

N.Kesteloot, B.Bastin, L.P.Gaffney, K.Wrzosek-Lipska, K.Auranen, C.Bauer, M.Bender, V.Bildstein, A.Blazhev, S.Bonig, N.Bree, E.Clement, T.E.Cocolios, A.Damyanova, I.Darby, H.De Witte, D.DiJulio, J.Diriken, C.Fransen, J.E.Garcia-Ramos, R.Gernhauser, T.Grahn, P.-H.Heenen, H.Hess, K.Heyde, M.Huyse, J.Iwanicki, U.Jakobsson, J.Konki, T.Kroll, B.Laurent, N.Lecesne, R.Lutter, J.Pakarinen, P.Peura, E.Piselli, L.Prochniak, P.Rahkila, E.Rapisarda, P.Reiter, M.Scheck, M.Seidlitz, M.Sferrazza, B.Siebeck, M.Sjodin, H.Tornqvist, E.Traykov, J.Van De Walle, P.Van Duppen, M.Vermeulen, D.Voulot, N.Warr, F.Wenander, K.Wimmer, M.Zielinska

Deformation and mixing of coexisting shapes in neutron-deficient polonium isotopes

NUCLEAR REACTIONS 104Pd(196Po, 196Po'), (200Po, 200Po'), (202Po, 202Po'), 94Mo(198Po, 198Po'), (202Po, 202Po'), E=2.85 MeV/nucleon, [secondary Po beams from U(p, X), E=1.4 GeV at REX-ISOLDE-CERN facility]; measured Eγ, Iγ, γγ-coin, (Po x ray)γ-coin, (scattered particle)γ-coin, (particle)γ(t), angular distribution of scattered particles, Coulomb excitation yields for excited states in beams and targets during laser-on and laser-off using double-sided silicon-strip detectors (DSSSDs) for particles and Miniball array for γ rays. 196,198,200,202Po; deduced levels, J, π, E2 matrix elements, B(E2), deformation parameters, transition quadrupole moments. 94Mo, 104Pd; deduced levels, Coulomb excitation yields. GOSIA analysis of Coulomb excitation yields. Comparison with predictions of beyond-mean-field (BMF) model, interacting boson model (IBM), general Bohr Hamiltonian (GBH) model, phenomenological two-level mixing model, and with previous measurement of mean-square charge radii.

doi: 10.1103/PhysRevC.92.054301
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2015MA24      Acta Phys.Pol. B46, 689 (2015)

T.Marchlewski, R.Szenborn, J.Samorajczyk, E.Grodner, J.Srebrny, Ch.Droste, L.Prochniak, A.A.Pasternak, M.Kowalczyk, M.Kisielinski, T.Abraham, J.Andrzejewski, P.Decowski, K.Hadynska-Klek, L.Janiak, M.Komorowska, J.Mierzejewski, P.Napiorkowski, J.Perkowski, A.Stolarz

Electromagnetic Properties of Chiral Bands in 124Cs

NUCLEAR REACTIONS 114Cd(14N, 4n), E=73 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, B(M1), B(E2), partner bands. Comparison with theoretical calculations within the Core-Particle-Hole Coupling model.

doi: 10.5506/APhysPolB.46.689
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2015PR09      Phys.Scr. 90, 114005 (2015)

L.Prochniak

Microscopic description of collective properties of even-even Xe isotopes

NUCLEAR STRUCTURE 118,120,122,124,126,128,130,132,134,136,138,140,142,144Xe; calculated potential energy surfaces, deformation parameters, B(E2). Comparison with experimental values.

doi: 10.1088/0031-8949/90/11/114005
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2014IM03      Phys.Scr. 89, 054025 (2014)

M.Imadalou, D.E.Medjadi, P.Quentin, L.Prochniak

Quadrupole collective dynamics of medium-heavy even-even nuclei within the highly truncated diagonalization approach

NUCLEAR STRUCTURE 102Zr, 104Mo, 110Ru, 110Pd; calculated energy surface vs deformations, energy vs quadrupole moment, levels, J, π, rotational bands using HF plus BCS and HTDA (Highly Truncated Diagonalization Approach). Compared with available data.

doi: 10.1088/0031-8949/89/5/054025
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2013PR02      Acta Phys.Pol. B44, 287 (2013)

L.Prochniak, A.Staszczak

Superdeformed Oblate Superheavy Nuclei in the Self-consistent Approach

NUCLEAR STRUCTURE 284,286,288120, 284,286,288,290,292122; calculated total HFB energy, total energy for axial shapes.

doi: 10.5506/APhysPolB.44.287
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2013UR01      Phys.Rev. C 87, 031304 (2013)

W.Urban, M.Jentschel, R.F.Casten, J.Jolie, Ch.Bernards, B.Maerkisch, Th.Materna, P.Mutti, L.Prochniak, T.Rzaca-Urban, G.S.Simpson, V.Werner, S.Ahmed

02+ band in 102Ru and the evolution of nuclear deformation in Ru isotopes

NUCLEAR REACTIONS 101Ru(n, γ), E=cold neutrons; measured Eγ, Iγ, γγ-coin, γγ(θ) using PF1B cold-neutron facility and GAMS5 spectrometer at Grenoble. 102Ru; deduced levels, J, π, bands, multipolarity, mixing ratio, interaction pattern between 0+ states. Systematics of 0+2 bands and other low-lying levels in Ru isotopes from N=50-66.

doi: 10.1103/PhysRevC.87.031304
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2012PR06      Int.J.Mod.Phys. E21, 1250036 (2012)

L.Prochniak, P.Quentin, M.Imadalou

Collective properties of stable even-even Cd isotopes

NUCLEAR STRUCTURE 106,108,110,112,114,116Cd; calculated level energies, J, π, B(E2). ATDHFB theory, comparison with available data.

doi: 10.1142/S021830131250036X
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2012WR03      Phys.Rev. C 86, 064305 (2012)

K.Wrzosek-Lipska, L.Prochniak, M.Zielinska, J.Srebrny, K.Hadynska-Klek, J.Iwanicki, M.Kisielinski, M.Kowalczyk, P.J.Napiorkowski, D.Pietak, T.Czosnyka

Electromagnetic properties of 100Mo: Experimental results and theoretical description of quadrupole degrees of freedom

NUCLEAR REACTIONS 100Mo(32S, 32S'), E=76 MeV; measured Eγ, Iγ, γ(θ), (particle)γ-coin using OSIRIS-II array. 100Mo; deduced levels, J, π, E1, E2, E3, M1 reduced matrix elements using GOSIA code, shape deformation parameters, Q2 (quadrupole overall deformation parameter) and cos(3δ) (quadrupole asymmetry parameter). Coulomb excitation. Level and B(E2) systematics of even-even Mo isotopes from N=50-64. Comparison with general quadrupole collective Bohr Hamiltonian (GBH) model.

NUCLEAR STRUCTURE 100Mo; calculated levels, J, π, potential energy surfaces, E2 matrix elements. general quadrupole collective Bohr Hamiltonian (GBH) model.

doi: 10.1103/PhysRevC.86.064305
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2011PR01      Acta Phys.Pol. B42, 465 (2011)

L.Prochniak, S.G.Rohozinski, Ch.Droste, K.Starosta

A Symmetry of the CPHC Model of Odd-Odd Nuclei and Its Consequences for Properties of M1 and E2 Transitions


2011RI01      Phys.Rev. C 83, 011301 (2011); Erratum Phys.Rev. C 83, 029901 (2011)

J.Rissanen, J.Kurpeta, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, I.D.Moore, P.Karvonen, A.Plochocki, L.Prochniak, H.Penttila, S.Rahaman, M.Reponen, A.Saastamoinen, J.Szerypo, W.Urban, C.Weber, J.Aysto

Decay study of 114Tc with a Penning trap

RADIOACTIVITY 114Tc(β-)[from U(d, X), E=25 MeV]; measured Eγ, Iγ, γγ-coin, half-lives, mass difference by Penning-Trap (JYFLTRAP) assisted spectroscopy. IGISOL facility. 114Ru; deduced levels, isomers, J, π, configurations, Q value for β decay, logft. Comparison with microscopic Bohr-Hamiltonian calculations using Sly4 Skyrme interaction.

doi: 10.1103/PhysRevC.83.011301
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2011RO07      Int.J.Mod.Phys. E20, 364 (2011)

S.G.Rohozinski, L.Prochniak, C.Droste, K.Starosta

Signatures of chirality in the core-particle-hole systems

doi: 10.1142/S0218301311017739
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2011RO35      Eur.Phys.J. A 47, 90 (2011)

S.G.Rohozinski, L.Prochniak, K.Starosta, Ch.Droste

Odd-odd nuclei as the core-particle-hole systems and chirality

NUCLEAR STRUCTURE 128La; calculated levels, J, B(E2), B(M1), magnetic dipole moment for imaginary (non-existing) nucleus with Z=57, A=128 using CPHC(Core-Particle-Hole Coupling) model.

doi: 10.1140/epja/i2011-11090-7
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2011WA26      Phys.Lett. B 704, 270 (2011)

H.Watanabe, K.Yamaguchi, A.Odahara, T.Sumikama, S.Nishimura, K.Yoshinaga, Z.Li, Y.Miyashita, K.Sato, L.Prochniak, H.Baba, J.S.Berryman, N.Blasi, A.Bracco, F.Camera, J.Chiba, P.Doornenbal, S.Go, T.Hashimoto, S.Hayakawa, C.Hinke, N.Hinohara, E.Ideguchi, T.Isobe, Y.Ito, D.G.Jenkins, Y.Kawada, N.Kobayashi, Y.Kondo, R.Krucken, S.Kubono, G.Lorusso, T.Nakano, T.Nakatsukasa, M.Kurata-Nishimura, H.J.Ong, S.Ota, Zs.Podolyak, H.Sakurai, H.Scheit, K.Steiger, D.Steppenbeck, K.Sugimoto, K.Tajiri, S.Takano, A.Takashima, T.Teranishi, Y.Wakabayashi, P.M.Walker, O.Wieland, H.Yamaguchi

Development of axial asymmetry in the neutron-rich nucleus 110Mo

RADIOACTIVITY 110Nb(β-) [from Be(238U, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, X-rays. 110Mo; deduced energy levels, J, π, quasi-γ-band state, B(e2) ratio. Comparison with general Bohr Hamiltonian method calculations, systematics of low-lying levels of even-even Mo nuclei.

NUCLEAR STRUCTURE 104,106,108,110Mo; calculated moments of inertia, potential energy surface, the nuclear landscape. General Bohr Hamiltonian method calculations.

doi: 10.1016/j.physletb.2011.09.050
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2011WR02      Int.J.Mod.Phys. E20, 443 (2011)

K.Wrzosek-Lipska, M.Zielinska, K.Hadynska-Klek, Y.Hatsukawa, J.Iwanicki, J.Katakura, M.Kisielinski, M.Koizumi, M.Kowalczyk, H.Kusakari, M.Matsuda, T.Morikawa, P.J.Napiorkowski, A.Osa, M.Oshima, D.Pietak, L.Prochniak, T.Shizuma, J.Srebrny, M.Sugawara, Y.Toh

Shape evolution in heaviest stable even-even molybdenum isotopes studied via Coulomb excitation

NUCLEAR STRUCTURE 96,98,100Mo; analyzed available data using quadrupole sum rule formalism; deduced electromagnetic reduced matrix elements using GOSIA code. Comparison with microscopic calculations.

doi: 10.1142/S0218301311017831
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2010PR02      Int.J.Mod.Phys. E19, 705 (2010)

L.Prochniak

Microscopic study of collective states of even-even Molybdenum isotopes

NUCLEAR STRUCTURE 84,86,88,90,92,94,96,98,100,102,104,106,108,110Mo; calculated energy levels, J, π, B(E2). Comparison with experimental data.

doi: 10.1142/S0218301310015138
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2010WA10      Int.J.Mod.Phys. E19, 787 (2010)

M.Warda, A.Staszczak, L.Prochniak

Comparison of self-consistent Skyrme and Gogny calculations for light Hg isotopes

NUCLEAR STRUCTURE 178,180,182,184Hg; calculated potential energy surfaces, ground state properties. Hartree-Fock-Bogoliubov approach with the Skyrme and Gogny force.

doi: 10.1142/S0218301310015230
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2009DR13      Eur.Phys.J. A 42, 79 (2009)

Ch.Droste, S.G.Rohozinski, K.Starosta, L.Prochniak, E.Grodner

Chiral bands in odd-odd nuclei with rigid or soft cores

NUCLEAR STRUCTURE 128Ba; calculated energy levels, B(E2). Comparison with data. 128La; calculated energy levels of chiral bands, μ, B(E2), B(M1). Comparison of rigid and soft core assumption in Core Particle Hole Coupling model.

doi: 10.1140/epja/i2009-10860-0
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2009NI04      Phys.Rev. C 79, 034303 (2009)

T.Niksic, Z.P.Li, D.Vretenar, L.Prochniak, J.Meng, P.Ring

Beyond the relativistic mean-field approximation. III. Collective Hamiltonian in five dimensions

NUCLEAR STRUCTURE 152,154,156,158,160Gd; calculated binding energy as function of deformation, triaxial quadrupole binding energy, ground-state, β and γ bands, K components, B(E2), staggering. 154Gd; calculated neutron and proton pairing energies, inertial parameters, cranking mass parameter, rotational zero-point energy and collective potential in β-γ plane, levels, J, π. RMF+BCS calculations using collective Hamiltonian in five dimensions. Comparisons with experimental data.

doi: 10.1103/PhysRevC.79.034303
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2009PR06      Int.J.Mod.Phys. E18, 1044 (2009)

L.Prochniak

Collective states in light Kr isotopes

NUCLEAR STRUCTURE 72,74,76Kr; calculated B(E2), level properties of collective quadrupole states using Skyrme interactions. Compared to data.

doi: 10.1142/S021830130901321X
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2009PR08      J.Phys.(London) G36, 123101 (2009)

L.Prochniak, S.G.Rohozinski

Quadrupole collective states within the Bohr collective Hamiltonian

NUCLEAR STRUCTURE 178,180Hf, 182,184,186W, 188,190,192Os, 194,196Pt, 198,200Hg; calculated lowest collective energy levels, B(E2) transition probabilities. Comparison with experimental data.

doi: 10.1088/0954-3899/36/12/123101
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2008PR05      Int.J.Mod.Phys. E17, 160 (2008)

L.Prochniak

Collective excitations of transactinide nuclei in a self-consistent mean field theory

NUCLEAR STRUCTURE 238U, 240,242Pu, 246,248Cm, 250,252Cf; calculated potential energy surfaces, mass parameter, probability distributions, level energies, and B(E2) using the Adiabatic Time Dependent Hartree-Fock-Bogolyubov (ATDHFB) approach. Comparisons with experimental results.

doi: 10.1142/S0218301308009653
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2007KU23      Eur.Phys.J. A 33, 307 (2007)

J.Kurpeta, W.Urban, Ch.Droste, A.Plochocki, S.G.Rohozinski, T.Rzaca-Urban, T.Morek, L.Prochniak, K.Starosta, J.Aysto, H.Penttila, J.L.Durell, A.G.Smith, G.Lhersonneau, I.Ahmad

Low-spin structure of 113Ru and 113Rh

RADIOACTIVITY 113Ru, 113Rh(β-) [from 248cm(SF)]; measured Eγ, Iγ, βγ, γγ-coinc. 113Ru, Rh deduced levels, J, π, logft.Compared results to model calculations.

doi: 10.1140/epja/i2006-10464-2
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2007PR07      Int.J.Mod.Phys. E16, 352 (2007)

L.Prochniak

Collective pairing Hamiltonian in a self-consistent approach

NUCLEAR STRUCTURE 128Xe; calculated collective pairing potential, mass parameter.

doi: 10.1142/S0218301307005788
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2007PR11      Acta Phys.Pol. B38, 1605 (2007)

L.Prochniak

E(5) and X(5) Dynamical Symmetries from a Microscopic Perspective

NUCLEAR STRUCTURE 104Ru, 102Pd, 154Gd; calculated levels, J, π using a microscopic mean field approach.


2006PR05      Int.J.Mod.Phys. E15, 379 (2006)

L.Prochniak

Collective quadrupole excitations within a self-consistent approach

NUCLEAR STRUCTURE 128Xe; calculated levels, J, π, B(E2); deduced collective pairing effects. Self-consistent approach.

doi: 10.1142/S0218301306004247
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2006SR01      Nucl.Phys. A766, 25 (2006)

J.Srebrny, T.Czosnyka, Ch.Droste, S.G.Rohozinski, L.Prochniak, K.Zajac, K.Pomorski, D.Cline, C.Y.Wu, A.Backlin, L.Hasselgren, R.M.Diamond, D.Habs, H.J.Korner, F.S.Stephens, C.Baktash, R.P.Kostecki

Experimental and theoretical investigations of quadrupole collective degrees of freedom in 104Ru

NUCLEAR REACTIONS 104Ru(208Pb, 208Pb'), E=954 MeV; 104Ru(136Xe, 136Xe'), E=525 MeV; 104Ru(58Ni, 58Ni'), E=165, 190 MeV; measured Eγ, Iγ, (particle)γ -coin following Coulomb excitation. 104Ru deduced levels, J, π, E2 and M1 matrix elements, quadrupole collectivity. Comparison with model predictions.

doi: 10.1016/j.nuclphysa.2005.11.013
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2005PR08      Int.J.Mod.Phys. E14, 463 (2005)

L.Prochniak

Quadrupole collective hamiltonian with pairing variables included

NUCLEAR STRUCTURE 110Ru, 126Ba; calculated level energies, J, influence of short-range correlations on quadrupole dynamics.

doi: 10.1142/S0218301305003284
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2004DR10      Eur.Phys.J. A 22, 179 (2004)

Ch.Droste, S.G.Rohozinski, L.Prochniak, K.Zajac, W.Urban, J.Srebrny, T.Morek

Description of 111Ru within the Core-Quasiparticle Coupling model

NUCLEAR STRUCTURE 111Ru; calculated levels, J, π, configurations. Core-quasiparticle coupling model, comparison with data.

doi: 10.1140/epja/i2004-10041-9
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2004PR01      Nucl.Phys. A730, 59 (2004)

L.Prochniak, P.Quentin, D.Samsoen, J.Libert

A self-consistent approach to the quadrupole dynamics of medium heavy nuclei

NUCLEAR STRUCTURE 102Zr, 104Mo, 110Ru, 110Pd, 124Xe, 126Ba; calculated levels, J, π, deformation, B(E2). Self-consistent model, Skyrme forces.

doi: 10.1016/j.nuclphysa.2003.10.011
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2004PR03      Int.J.Mod.Phys. E13, 217 (2004)

L.Prochniak, P.Ring

The relativistic mean field theory and low energy quadrupole collective excitations

NUCLEAR STRUCTURE 110Ru, 126Ba; calculated potential energy surfaces, levels, J, B(E2), quadrupole collective excitations.

doi: 10.1142/S0218301304001977
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2003PR15      Acta Phys.Pol. B34, 2461 (2003)

L.Prochniak, P.Quentin, D.Samsoen, J.Libert

Quadrupole collective excitations in medium heavy transitional nuclei with in a selfconsistent approach with Skyrme forces

NUCLEAR STRUCTURE 102Zr, 104Mo, 110Ru, 110Pd, 124Xe, 126Ba; calculated levels, J, B(E2), collective features. Comparison with data.


2003SZ07      Acta Phys.Pol. B34, 2295 (2003)

S.Szpikowski, L.Prochniak

Binding energy for nuclear supermultiplets in light nuclei

NUCLEAR STRUCTURE 21,22,23,24,26,28O, 20,21,22,23,24,25F, 21,22,23,24,25,26Ne, 20,21,22,23,24,25Na, 21,22,23,24,25,26Mg, 23,24,25Al, 24,25,26Si; calculated binding energies. Three-parameter supersymmetric mass formula.


2003ZA14      Acta Phys.Pol. B34, 1789 (2003)

K.Zajac, L.Prochniak, K.Pomorski, S.G.Rohozinski, J.Srebrny

Collective quadrupole excitations of transactinide nuclei

NUCLEAR STRUCTURE Z=92-102; calculated even-even isotopes binding energies, transitions B(E2), level energies, related features. Modified Bohr Hamiltonian, comparison with data.


2002PR01      Acta Phys.Pol. B33, 405 (2002)

L.Prochniak, K.Zajac, K.Pomorski, S.G.Rohozinski, J.Srebrny

Collective Quadrupole Excitations in Transuranic Nuclei

NUCLEAR STRUCTURE 240,242,244,246,248,250,252Pu, 242,244,246,248,250,252,254Cm, 252,254,256Cf, 246,248,250,252,254,256,258Fm, 248,250,252,254,256,258,260No; calculated band-head energies for ground-state and vibrational bands. 250Cf; calculated excited states energies vs spin. 242,244,246,248,250,252,254Cm; calculated transitions B(E2). 254No; calculated superdeformed band features.


2001RO22      Yad.Fiz. 64, No 6, 1081 (2001); Phys.Atomic Nuclei 64, 1005 (2001)

S.G.Rohozinski, K.Pomorski, L.Prochniak, K.Zajac, Ch.Droste, J.Srebrny

Collective States of Transitional Nuclei

NUCLEAR STRUCTURE 104Ru; calculated levels, J, π, transitions B(E2). Quadrupole-plus-pairing collective model.

doi: 10.1134/1.1383606
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2001ZA03      Acta Phys.Pol. B32, 681 (2001)

K.Zajac, L.Prochniak, K.Pomorski, S.G.Rohozinski, J.Srebrny

Collective Quadrupole Excited States in Actinide and Transuranic Nuclei

NUCLEAR STRUCTURE 248,250,252,254,256Fm, 252,254,256,258No; calculated ground-state band level energies. 254No, 256Fm; calculated transitions B(E2). Microscopic collective Bohr Hamiltonian.


2000PO19      Phys.Scr. T88, 111 (2000)

K.Pomorski, L.Prochniak, K.Zajac, S.G.Rohozinski, J.Srebrny

Collective Quadrupole Excitations in Transitional Nuclei

NUCLEAR STRUCTURE Ru, Pd, Te, Ba, Nd; calculated low-lying collective excitations level energies. Generalized Bohr Hamiltonian.

doi: 10.1238/Physica.Topical.088a00111
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2000ZA05      Acta Phys.Pol. B31, 459 (2000)

K.Zajac, L.Prochniak, K.Pomorski, S.G.Rohozinski, J.Srebrny

The Quadrupole and Pairing Vibrations in Rare-Earth Nuclei

NUCLEAR STRUCTURE 148,150,152,154,156,158,160,162Gd, 152,154,156,158,160,162,164,166Er; calculated levels, J, π; deduced role of quadrupole and pairing vibrations. Microscopic approach, general collective Bohr Hamiltonian.


1999PR03      Nucl.Phys. A648, 181 (1999)

L.Prochniak, K.Zajac, K.Pomorski, S.G.Rohozinski, J.Srebrny

Collective Quadrupole Excitations in the 50 < Z, N < 82 Nuclei with the General Bohr Hamiltonian

NUCLEAR STRUCTURE 132,134,136,138,140,142Sm, 128,130,132,134,136,138,140Nd, 124,126,128,130,132,134,136Ce, 122,124,126,128,130,132,134,136Ba, 118,120,122,124,126,128,130,132Xe, 116,118,120,122,124,126,128,130Te, 114,116,118,120Ba; calculated levels, J, π, B(E2), quadrupole, dipole moments, collective excitations; deduced pairing vibration effects. General Bohr Hamiltonian, cranking model, Strutinsky method, particle number projection.

doi: 10.1016/S0375-9474(99)00023-8
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1999ZA10      Nucl.Phys. A653, 71 (1999)

K.Zajac, L.Prochniak, K.Pomorski, S.G.Rohozinski, J.Srebrny

The Low-Lying Quadrupole Collective Excitations of Ru and Pd Isotopes

NUCLEAR STRUCTURE 104,106,108,110,112,114Ru, 106,108,110Pd; calculated levels, J, π, B(E2). General collective Bohr model, comparison with data.

doi: 10.1016/S0375-9474(99)00161-X
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1997PR05      J.Phys.(London) G23, 705 (1997)

L.Prochniak, S.Szpikowski, W.Berej

Binding Energy of the sd Shell Nuclei in the Supersymmetric Model

NUCLEAR STRUCTURE 16,17,18,19,20,21,22,23,24,25,26O, 21,22,23,24,25,26,27,28,29,30,31,32,33Al, 40Ca; calculated binding energies. Supersymmetric model.

doi: 10.1088/0954-3899/23/6/009
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1996PR07      Acta Phys.Pol. B27, 487 (1996)

L.Prochniak, K.Zajac

Microscopic Bohr Hamiltonian Calculations for Ba Isotopes

NUCLEAR STRUCTURE 122,124,126,128,130,132,134,136Ba; calculated levels, electromagnetic transitions. New method of solving general Bohr Hamiltonian.


1995SZ07      Acta Phys.Pol. B26, 1403 (1995)

S.Szpikowski, Y.S.Ling, L.Prochniak

The Supersymmetry Considerations in the First Half of the sd Shell

NUCLEAR STRUCTURE 25,26Mg, 25Al, 26Si; calculated levels, B(λ). 24Na; calculated levels. Two-fermion plus boson model, supersymmetry.


1990SZ03      Z.Phys. A335, 289 (1990)

S.Szpikowski, P.Klosowski, L.Prochniak

Supersymmetry and Electromagnetic E2 Transitions

NUCLEAR STRUCTURE 30Si, 30,31P; calculated levels, B(λ); deduced supersymmetry classification scheme. Supersymmetric model.


1988SZ01      Nucl.Phys. A487, 301 (1988)

S.Szpikowski, P.Klosowski, L.Prochniak

Search for Supersymmetry in Light Nuclei

NUCLEAR STRUCTURE 30,33,34,32,31S, 35Cl, 29,30Si, 31,30P; calculated levels; deduced supersymmetry model applicability. Dynamical supersymmetric hamiltonian.

doi: 10.1016/0375-9474(88)90615-X
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