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NSR database version of May 20, 2024.

Search: Author = L.Janiak

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2023XU06      Phys.Rev.Lett. 131, 022501 (2023)

Z.Y.Xu, M.Madurga, R.Grzywacz, T.T.King, A.Algora, A.N.Andreyev, J.Benito, T.Berry, M.J.G.Borge, C.Costache, H.De Witte, A.Fijalkowska, L.M.Fraile, H.O.U.Fynbo, A.Gottardo, C.Halverson, L.J.Harkness-Brennan, J.Heideman, M.Huyse, A.Illana, L.Janiak, D.S.Judson, A.Korgul, T.Kurtukian-Nieto, I.Lazarus, R.Lica, R.Lozeva, N.Marginean, R.Marginean, C.Mazzocchi, C.Mihai, R.E.Mihai, A.I.Morales, R.D.Page, J.Pakarinen, M.Piersa-Silkowska, Z.Podolyak, P.Sarriguren, M.Singh, C.Sotty, M.Stepaniuk, O.Tengblad, A.Turturica, P.Van Duppen, V.Vedia, S.Vinals, N.Warr, R.Yokoyama, C.X.Yuan

133In: A Rosetta Stone for Decays of r-Process Nuclei

RADIOACTIVITY 133In(IT), (β-), (β-n); measured decay products, En, In, Eβ, Iβ, Eγ, Iγ; deduced excitation energy and decay strength, partial T1/2. Comparison with large-scale shell model (LSSM) calculations. The ISOLDE Decay Station (IDS), The Isotope Separator On-Line (ISOLDE) facility at CERN.

doi: 10.1103/PhysRevLett.131.022501
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2023XU08      Phys.Rev. C 108, 014314 (2023)

Z.Y.Xu, M.Madurga, R.Grzywacz, T.T.King, A.Algora, A.N.Andreyev, J.Benito, T.Berry, M.J.G.Borge, C.Costache, H.De Witte, A.Fijalkowska, L.M.Fraile, H.O.U.Fynbo, A.Gottardo, C.Halverson, L.J.Harkness-Brennan, J.Heideman, M.Huyse, A.Illana, L.Janiak, D.S.Judson, A.Korgul, T.Kurtukian-Nieto, I.Lazarus, R.Lica, R.Lozeva, N.Marginean, R.Marginean, C.Mazzocchi, C.Mihai, R.E.Mihai, A.I.Morales, R.D.Page, J.Pakarinen, M.Piersa-Silkowska, Zs.Podolyak, P.Sarriguren, M.Singh, Ch.Sotty, M.Stepaniuk, O.Tengblad, A.Turturica, P.Van Duppen, V.Vedia, S.Vinals, N.Warr, R.Yokoyama, C.X.Yuan

β-delayed neutron spectroscopy of 133In

RADIOACTIVITY 133,133mIn(β-)(β-n); decay products, neutron time-of-flight, En, In, Eβ, Iβ, Eγ, Iγ, βγ-coin, nβ-coin; deduced feeding intensities, neutron-emission probabilities, logft, β-decay strength distribution, Gamow-Teller transition. 133Sn; deduced levels, J, π, configurations. Comparison of 133Sn and 131Sn level schemes. The ISOLDE Decay Station (IDS) at The Isotope Separator On-Line (ISOLDE) facility at CERN.

doi: 10.1103/PhysRevC.108.014314
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2022CI04      Phys.Rev. C 106, 014317 (2022)

A.A.Ciemny, C.Mazzocchi, W.Dominik, A.Fijalkowska, J.Hooker, C.Hunt, H.Jayatissa, L.Janiak, G.Kaminski, E.Koshchiy, M.Pfutzner, M.Pomorski, B.Roeder, G.V.Rogachev, A.Saastamoinen, S.Sharma, N.Sokolowska, W.Satula, J.Singh

β-delayed charged-particle decay of 22, 23Si

RADIOACTIVITY 22,23Si(β+), (β+p), (β+2p); 23Si(β+3p), (β+α)[22,23Si activities from Ni(28Si, X), E=45 MeV/nucleon at the Texas A and M University K500 superconducting cyclotron, followed by separation of fragments using momentum achromat recoil separator (MARS)]; measured reaction fragments, particle spectra, E(p), I(p) using optical-readout time-projection chamber (OTPC). 23Al, 22Mg, 21Na; deduced levels, J, π. 22Si, 23Si; deduced T1/2 of ground states, and absolute branching ratios for the observed decay modes; calculated Gamow-Teller matrix elements using angular-momentum-projected (AMP) method with DFT-NCCI module. 23Al; calculated levels, J, π using multireference density-functional-rooted (DFT) calculations, and compared with shell-model calculations in literature. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.106.014317
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Data from this article have been entered in the XUNDL database. For more information, click here.


2022JA13      Phys.Rev. C 106, 044303 (2022)

L.Janiak, M.Gierlik, G.Madejowski, R.Prokopowicz, S.Wronka, J.Rzadkiewicz, J.J.Carroll, C.J.Chiara

Half-life of the 188-keV isomer of 184Re

RADIOACTIVITY 184Re(IT), (EC)[from Re(n, γ), E=thermal]; 60Co, 134Cs, 186Re(β-); measured Eγ, Iγ, T1/2 of decays of 184Re isomer and 134Cs g.s. by γ-decay curves, with reference to activities and half-lives of decays of 60Co and 186Re ground states; deduced T1/2 of 184Re isomer with improved precision by two orders of magnitude as compared to the literature value.

doi: 10.1103/PhysRevC.106.044303
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Data from this article have been entered in the XUNDL database. For more information, click here.


2021KU30      Phys.Rev. C 104, 064610 (2021)

A.Kubiela, H.Suzuki, O.B.Tarasov, M.Pfutzner, D.-S.Ahn, H.Baba, A.Bezbakh, A.A.Ciemny, W.Dominik, N.Fukuda, A.Giska, R.Grzywacz, Y.Ichikawa, Z.Janas, L.Janiak, G.Kaminski, K.Kawata, T.Kubo, M.Madurga, C.Mazzocchi, H.Nishibata, M.Pomorski, Y.Shimizu, N.Sokolowska, D.Suzuki, P.Szymkiewicz, A.Swiercz, M.Tajima, A.Takamine, H.Takeda, Y.Takeuchi, C.R.Thornsberry, H.Ueno, H.Yamazaki, R.Yokoyama, K.Yoshida

Production of the most neutron-deficient Zn isotopes by projectile fragmentation of 78Kr

NUCLEAR REACTIONS 9Be(78Kr, X)54Zn/55Zn/56Zn, E=345 MeV/nucleon; measured reaction products, production σ using BigRIPS separator at the RIBF-RIKEN facility. Comparison of measured σ for Zn isotopes in this work, and for germanium, selenium, and krypton isotopes in other studies with predictions of the EPAX3 parametrization, LISE++ abrasion-ablation model using the HFB22 mass model and the AME2020 mass tables. Relevance to production of nuclei decaying by 2p radioactivity such as 54Zn.

doi: 10.1103/PhysRevC.104.064610
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2730.


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


2018CW01      Acta Phys.Pol. B49, 509 (2018)

M.Cwiok, M.Bieda, J.S.Bihalowicz, W.Dominik, Z.Janas, L.Janiak, J.Manczak, T.Matulewicz, C.Mazzocchi, M.Pfutzner, P.Podlaski, S.Sharma, M.Zaremba, D.Balabanski, A.Bey, D.G.Ghita, O.Tesileanu, M.Gai

A TPC Detector for Studying Photo-nuclear Reactions at Astrophysical Energies with Gamma-ray Beams at ELI-NP

doi: 10.5506/aphyspolb.49.509
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2017JA05      Phys.Rev. C 95, 034315 (2017)

L.Janiak, N.Sokolowska, A.A.Bezbakh, A.A.Ciemny, H.Czyrkowski, R.Dabrowski, W.Dominik, A.S.Fomichev, M.S.Golovkov, A.V.Gorshkov, Z.Janas, G.Kaminski, A.G.Knyazev, S.A.Krupko, M.Kuich, C.Mazzocchi, M.Mentel, M.Pfutzner, P.Plucinski, M.Pomorski, R.S.Slepniev, B.Zalewski

β-delayed proton emission from 26P and 27S

RADIOACTIVITY 26P, 27S(β+p), (β+2p)[from 9Be(32S, X), E=51.3 MeV/nucleon using ACCULINNA fragment separator at FLNR-Dubna facility]; measured E(p), I(p), (implants)(proton), β+p and β+2p events using gaseous optical time projection chamber (OTPC) detector, half-lives; deduced branching ratios for β+p and β+2p decay modes. 27P; deduced levels, J, π. Comparison of decay branching ratios and half-lives with previous experimental values. Discussed γ-to-proton emission probability ratio Γγp relevant to 26Si(p, γ)27P reaction rate.

doi: 10.1103/PhysRevC.95.034315
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Data from this article have been entered in the XUNDL database. For more information, click here.


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


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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2016KO12      Acta Phys.Pol. B47, 723 (2016)

J.Kownacki, M.Kisielinski, A.Kordyasz, M.Kowalczyk, P.Napiorkowski, J.Srebrny, A.Stolarz, S.Lalkovski, Ch.Droste, E.Ruchowska, W.Czarnacki, A.Korman, P.Sibczynski, J.Andrzejewski, J.Perkowski, L.Janiak, J.Samorajczyk

Investigation of γ-ray Emission in Heavy Ion Induced Fission During the Cyclotron Beam-on Periods

NUCLEAR REACTIONS 208Pb(16O, X)94Y/95Y/95Zr/99Mo/108Rh/119In/123Sb, E=85, 90 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced energy levels, J, π, isomeric states T1/2.

doi: 10.5506/APhysPolB.47.723
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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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2012GR24      J.Phys.:Conf.Ser. 381, 012067 (2012)

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

DSA lifetime measurements of 124Cs and the time-reversal symmetry

NUCLEAR REACTIONS 114Cd(14N, 4n), E=73 MeV; measured Eγ, Iγ, γγ-coin using EAGLE array with ACS Ge spectrometers; deduced levels, J, π, rotational bands, levels T1/2, yrast band B(M1), S-symmetry, chiral symmetry breaking using DSA (Doppler shift attenuation).Discussed possible time-parity violation.

doi: 10.1088/1742-6596/381/1/012067
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2012JA05      Acta Phys.Pol. B43, 313 (2012)

L.Janiak, J.Andrzejewski, J.Perkowski, J.Samorajczyk

The Optimization of Transmission of the Internal Conversion Electron Spectrometer by Using the CST Particle Studio Code

doi: 10.5506/APhysPolB.43.313
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2012PE02      Acta Phys.Pol. B43, 273 (2012)

J.Perkowski, J.Andrzejewski, T.Abraham, W.Czarnacki, Ch.Droste, E.Grodner, L.Janiak, M.Kisielinski, M.Kowalczyk, J.Kownacki, J.Mierzejewski, A.Korman, J.Samorajczyk, J.Srebrny, A.Stolarz, M.Zielinska

Isomeric State 8- in 130Ba Studied by Conversion-electron and Gamma-ray Spectroscopy

NUCLEAR REACTIONS 122Sn(12C, 4n)130Ba, E=68 MeV; measured reaction products, Eγ, Iγ, ce, e-γ-, γγ-coin.; deduced J, π, decay of the isomeric state, internal conversion coefficients. Comparison with theoretical predictions.

doi: 10.5506/APhysPolB.43.273
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Data from this article have been entered in the XUNDL database. For more information, click here.


2012SA06      Acta Phys.Pol. B43, 325 (2012)

J.Samorajczyk, J.Andrzejewski, L.Janiak, J.Perkowski, J.Skubalski, A.Stolarz

Preparation and Tests of the Target for Production of 134Nd Nuclei

NUCLEAR REACTIONS 122Te(16O, X)134Nd, E=80MeV; measured reaction products, Eγ, Iγ; deduced γ-transitions below Iπ=Kπ=8- isomeric state in 134Nd.

doi: 10.5506/APhysPolB.43.325
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