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NSR database version of April 27, 2024.

Search: Author = K.Kessaci

Found 7 matches.

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2022HA04      Eur.Phys.J. A 58, 6 (2022)

K.Hauschild, A.Lopez-Martens, R.Chakma, M.L.Chelnokov, V.I.Chepigin, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, E.A.Sokol, A.I.Svirikhin, M.S.Tezekbayeva, A.V.Yeremin, Z.Asfari, O.Dorvaux, B.J.P.Gall, K.Kessaci, D.Ackermann, J.Piot, P.Mosat, B.Andel

Alpha-decay spectroscopy of ²⁵⁷Rf

RADIOACTIVITY ²⁵⁷Rf(α), (IT) [from ²⁰⁸Pb(⁵⁰Ti, n), E=240-245 MeV]; measured decay products, Eα, Iα, Eγ, Iγ; deduced α-particles energies and intensities, T_1/2, J, π, decay scheme. Nilsson configurations. The detectorarray GABRIELA at the FLNR, Dubna.

doi: 10.1140/epja/s10050-021-00657-8
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022IS05      Eur.Phys.J. A 58, 108 (2022)

A.V.Isaev, R.S.Mukhin, A.V.Andreev, M.A.Bychkov, M.L.Chelnokov, V.I.Chepigin, H.M.Devaraja, O.Dorvaux, M.Forge, B.Gall, K.Hauschild, I.N.Izosimov, K.Kessaci, A.A.Kuznetsova, A.Lopez-Martens, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, A.Rahmatinejad, B.Sailaubekov, T.M.Shneidman, E.A.Sokol, A.I.Svirikhin, D.A.Testov, M.S.Tezekbayeva, A.V.Yeremin, N.I.Zamyatin, K.Sh.Zhumadilov

Prompt neutron emission in the spontaneous fission of ²⁴⁶Fm

RADIOACTIVITY ²⁴⁶Fm(SF) [from ²⁰⁸Pb(⁴⁰Ar, X), E=183 MeV]; measured decay products, En, In; deduced neutron yields, nubar, spontaneous fission branching ratio, T_1/2. Tikhonov method of statistical regularisation. FLNR JINR using the SHELS separator and the SFiNx detection system, the U-400 cyclotron.

doi: 10.1140/epja/s10050-022-00761-3
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41751. Data from this article have been entered in the XUNDL database. For more information, click here.

2022LO03      Phys.Rev. C 105, L021306 (2022)

A.Lopez-Martens, K.Hauschild, A.I.Svirikhin, Z.Asfari, M.L.Chelnokov, V.I.Chepigin, O.Dorvaux, M.Forge, B.Gall, A.V.Isaev, I.N.Izosimov, K.Kessaci, A.A.Kuznetsova, O.N.Malyshev, R.S.Mukhin, A.G.Popeko, Yu.A.Popov, B.Sailaubekov, E.A.Sokol, M.S.Tezekbayeva, A.V.Yeremin

Fission properties of ²⁵³Rf and the stability of neutron-deficient Rf isotopes

RADIOACTIVITY ²⁵³Rf(SF)(α) [from ²⁰⁴Pb(⁵⁰Ti, n), E=244 MeV];²⁴⁹No(α)[from ²⁵³Rf(SF)(α)];²⁴⁵Fm(α)[from ²⁴⁹No(α)]; ²⁵¹No(SF)(α)[from ²⁰⁴Pb(⁴⁸Ca, n); measured fission fragments, Eγ, Iγ, Eα, Iα, (implant)α-coin, (implant)γ-coin. ²⁵³Rf; deduced levels, J, π, T_1/2 for two isomeric fissioning states, branching ratio for α-decay. ²⁵¹No; deduced T_1/2. ²⁵²Rf; deduced T_1/2 based on extracted hindrance factor and systematics. U400 Cyclotron at the Flerov Laboratory of Nuclear Reactions in Dubna with separator for heavy element spectroscopy (SHELS). GABRIELA detector consisting of DSSD and HPGe detectors.

NUCLEAR REACTIONS ²⁰⁴Pb(⁵⁰Ti, n), E=244 MeV; measured fission fragments from ²⁵³Rf decay, Eα, Iα; deduced σ.

doi: 10.1103/PhysRevC.105.L021306
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022TE01      Eur.Phys.J. A 58, 52 (2022)

M.S.Tezekbayeva, A.V.Yeremin, A.I.Svirikhin, A.Lopez-Martens, M.L.Chelnokov, V.I.Chepigin, A.V.Isaev, I.N.Izosimov, A.V.Karpov, A.A.Kuznetsova, O.N.Malyshev, R.S.Mukhin, A.G.Popeko, Yu.A.Popov, V.A.Rachkov, B.S.Sailaubekov, E.A.Sokol, K.Hauschild, H.Jacob, R.Chakma, O.Dorvaux, M.Forge, B.Gall, K.Kessaci, B.Andel, S.Antalic, A.Bronis, P.Mosat

Study of the production and decay properties of neutron-deficient nobelium isotopes

RADIOACTIVITY ^{249,250,250m,251}No(α)[from ²⁰⁴Pb(⁴⁸Ca, xn), E=225.2, 230.0, 237.0, 242.0, 246.0 MeV]; ²⁴⁵Fm, ²⁴⁵Es, ²⁴¹Cf(α)[from ²⁴⁹No α decay]; measured decay products, Eα, Iα, (evaporation residues)α-corelations using SHELS separator and the GABRIELA detector system at FLNR-JINR-Dubna; deduced T_1/2, production σ for ²⁴⁹No, an upper limit on the fission branch. ²⁴⁵Fm(EC), (β⁺); deduced branching ratio for ϵ+β⁺ decay mode. Comparison with previous experimental results.

doi: 10.1140/epja/s10050-022-00707-9
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Data from this article have been entered in the XUNDL database. For more information, click here.

2021IS09      Phys.Part. and Nucl.Lett. 18, 449 (2021)

A.V.Isaev, A.V.Andreev, M.L.Chelnokov, V.I.Chepigin, I.N.Izosimov, A.A.Kuznetsova, O.N.Malyshev, R.S.Mukhin, A.G.Popeko, Y.A.Popov, T.M.Shneidman, E.A.Sokol, A.I.Svirikhin, M.S.Tezekbayeva, A.V.Yeremin, N.I.Zamyatin, P.Brionnet, O.Dorvaux, B.Gall, K.Kessaci, A.Sellam, K.Hauschild, A.Lopez-Martens, S.Antalic, P.Mosat

Comparative Study of Spontaneous-Fission Characteristics of ²⁵²No and ²⁵⁴No Isotopes

RADIOACTIVITY ^252,254No(SF) [from ^206,208Pb(⁴⁸Ca, X), E=215 MeV]; measured decay products; deduced T_1/2, total kinetic energies of fission fragments, and prompt-neutron multiplicities (nubars). SHELS separator, Flerov Laboratory of Nuclear Reactions (JINR).

doi: 10.1134/S1547477121040087
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41741.

2021KE10      Phys.Rev. C 104, 044609 (2021)

K.Kessaci, B.J.P.Gall, O.Dorvaux, A.Lopez-Martens, R.Chakma, K.Hauschild, M.L.Chelnokov, V.I.Chepigin, M.Forge, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.A.Kuznetsova, O.N.Malyshev, R.Mukhin, J.Piot, A.G.Popeko, Yu.A.Popov, E.A.Sokol, A.I.Svirikhin, M.S.Tezekbayev, A.V.Yeremin

Evidence of high-K isomerism in ²⁵⁶₁₀₂No₁₅₄

RADIOACTIVITY ^256,256mNo(α), ^256mNo(IT)[from ²³⁸U(²²Ne, 4n), E=113, 116 MeV, followed by separation of evaporation residues (ERs) using the Super Heavy ELements Separator (SHELS) at the U400 cyclotron of FLNR-JINR-Dubna]; measured Eα, Iα, Eγ, Iγ, conversion electrons, (ce)γ-coin, (recoils)α-correlations, half-lives of decays of ²⁵⁶No and ^256mNo using the GABRIELA apparatus with time-of-flight (TOF) system, a double-sided silicon strip detector (DSSD), eight silicon strip detectors, five Compton-suppressed HPGe detectors, and a clover HPGe detector. ²⁵⁶No; deduced level, J, π, Kπ, first evidence of an isomer in ²⁵⁶No, high-K isomerism, two- and four-quasiparticle Nilsson configurations; schematics of two quasiparticles states on neutron and proton single-particle levels, based on experimental sequences of states in neighboring isotones and isotopes.

doi: 10.1103/PhysRevC.104.044609
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Data from this article have been entered in the XUNDL database. For more information, click here.

2020CH44      Eur.Phys.J. A 56, 245 (2020)

R.Chakma, K.Hauschild, A.Lopez-Martens, A.V.Yeremin, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, A.I.Svirikhin, V.I.Chepigin, O.Dorvaux, B.Gall, K.Kessaci

Gamma and conversion electron spectroscopy using GABRIELA

RADIOACTIVITY ¹³³Ba(EC), ²¹⁰Ra(IT) [from ¹⁷⁰Er, ¹⁶⁴Dy(⁵⁰Ti, X), E not given]; measured decay products, Eβ, Iβ, Eγ, Iγ; deduced gamma and internal conversion electron spectroscopy efficiencies of heavy and superheavy nuclei. Comparison with the Geant4 Monte Carlo simulation toolkit.

doi: 10.1140/epja/s10050-020-00242-5
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