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NSR database version of April 11, 2024.

Search: Author = A.Yeremin

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2023CH05      Phys.Rev. C 107, 014326 (2023)

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

Investigation of isomeric states in 255Rf

NUCLEAR REACTIONS 207Pb(50Ti, 2n), E=253 MeV; measured reaction products, evaporation residues (ER), Eγ, Iγ, ce, Eβ, (ER)γ-coin, ceγ-coin, (ER)←ce)-coin; deduced isomer levels population, isomeric ratios. 255Rf; deduced levels, J, π, δ, T1/2 of newly discovered isomeric states, high-spin states, configurations of isomeric states. Evaporation residues separated using the velocity filter SHELS and transported to the focal-plane detection setup - GABRIELA detector array for γ and internal conversion electrons at FLNR (JINR, Dubna).

RADIOACTIVITY 255Rf(α), (SF)[from (50Ti, 2n), E=253 MeV]; measuredEα, Iα, fission fragments; deduced T1/2 of α-decay and fission, branching ratios. 255Rf(β+)(EC); deduced upper limit of β+/EC decay branch. Decay of implanted evaporation residues measured by large-area double-sided silicon strip detector (DSSD).

doi: 10.1103/PhysRevC.107.014326
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2023IS03      Phys.Lett. B 843, 138008 (2023)

A.V.Isaev, R.S.Mukhin, A.V.Andreev, Z.Asfari, M.L.Chelnokov, V.I.Chepigin, H.M.Devaraja, O.Dorvaux, B.Gall, K.Hauschild, I.N.Izosimov, 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, M.S.Tezekbayeva, A.V.Yeremin, N.I.Zamyatin

Structure of the prompt neutron multiplicity distribution in the spontaneous fission of 256Rf

RADIOACTIVITY 256Rf(SF), (α) [from 208Pb(50Ti, X), E=237 MeV];measured fission products, En, In, TOF; deduced neutron multiplicity distribution, alpha decay branching ratio and T1/2. Prompt neutron multiplicity study in the superheavy element region. SHELS separator, U-400 cyclotron, the Flerov laboratory at JINR.

doi: 10.1016/j.physletb.2023.138008
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2022BR08      Phys.Rev. C 106, 014602 (2022)

A.Bronis, F.P.Hessberger, S.Antalic, B.Andel, D.Ackermann, S.Heinz, S.Hofmann, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, B.Streicher, B.Sulignano, J.Uusitalo, M.Venhart, A.V.Yeremin

Decay studies of new isomeric states in 255No

RADIOACTIVITY 250Fm, 252,254,255No(α)[from 208Pb(48Ca, X), E=213.6, 218.4 MeV]; measured Eα. 255mNo(IT); measured Eγ, γ(ce)-coin, γ(ER)-coin; deduced levels, three micro-sec isomers in 255No, J, π, T1/2, multipolarities, Nilsson configurations. Comparison with level scheme of 257Rf from the decay of its isomer, and with theoretical calculations based on the mean-field models. 253mNo, 255mRf, 257mRf; deduced Nilsson configurations of high-K 3-qp isomeric states in N=151 and N=153 isotopes. Systematics of experimental and theoretical single-particle states in N=153 isotones of 247Pu, 249Cm, 251Cf, 253Fm, 255No, 257Rf, 259Sg, 261Hs.

doi: 10.1103/PhysRevC.106.014602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD8054. Data from this article have been entered in the XUNDL database. For more information, click here.


2022DE35      Phys.Part. and Nucl.Lett. 19, 693 (2022)

H.M.Devaraja, A.V.Yeremin, S.Heinz, A.G.Popeko

The Study of Multi-Nucleon Transfer Reactions for Synthesis of New Heavy and Superheavy Nuclei

NUCLEAR REACTIONS 232Th(18O, X)18C/20N/22O, 232Th(22Ne, X)23F/24F/25Ne/26Ne/21N/23O/24O/25F, 232Th(40Ar, X)29Mg/30Mg/31Al/32Al/33Al/33Si/34Si/35Si/36Si/39S/40S/41Cl/42Cl, 238U(40Ar, X)37Si/40P/41S/42S, 238U(40Ar, X)54Ti/56V/58Cr/59Cr/61Mn/63Fe/64Fe, 238U(56Fe, X)52Sc/53Sc/56Ti/57V/58V/60Cr/55Ti, Ta, W(136Xe, X)181Lu/182Lu/183Lu/179Yb, W(76Ge, X)62Mn/63Mn/71Cu/72Cu/73Cu/66Co/67Co, Ta, W(238U, X)232Ac/234Ac, Ta, W(186W, X)180Yb/184Lu/177Tm, W(136Xe, X)172Ho, W(208Pb, X)205Au, W(176Yb, X)174Er/171Ho, W(170Er, X)169Dy, 254Es(18O, X)260Md, 244Pu(136Xe, X)243Np/244Np, 70Zn(18O, X)68Ni, 70Zn(14C, X)69Ni, 198Pt(18O, X)199Ir, Pb(12C, X)208Hg, U(18O, X)239Pa, Pb(18O, X)209Hg, W(18O, X)186Hf, U(18O, X)238Th, E<1 GeV; analyzed available data on multi-nucleon transfer (MNT) reactions; deduced the application of multi-nucleon transfer reactions to produce new heavy and superheavy isotopes, modernization of U400 cyclotron (U400R).

doi: 10.1134/S1547477122060085
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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, T1/2, 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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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, T1/2. 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, T1/2 for two isomeric fissioning states, branching ratio for α-decay. 251No; deduced T1/2. 252Rf; deduced T1/2 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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2022SA09      Phys.Rev. C 105, 024604 (2022)

R.N.Sagaidak, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, O.N.Malyshev, A.G.Popeko, A.I.Svirikhin, A.V.Yeremin

Production of evaporation residues in the 16O + 208Pb and 48Ca + 176Yb reactions

NUCLEAR REACTIONS 208Pb(16O, xn), E*=19-78 MeV; 176Yb(48Ca, xn), E*=19-62 MeV;measured reaction products, evaporation residues, Eα, Ια, αα-coin, (implants)α-coin; deduced σ(E), compound nucleus formation probability. Comparison with previous experimental data. Recoil separator VASSILISSA at U400 cyclotron (JINR).

doi: 10.1103/PhysRevC.105.024604
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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,251No(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 T1/2, 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.


2022ZH42      Phys.Rev. C 106, 014625 (2022)

Y.-H.Zhang, G.Zhang, J.-J.Li, Z.Liu, A.V.Yeremin, F.-S.Zhang

Production cross sections of 243-248No isotopes in fusion reactions

NUCLEAR REACTIONS 208Pb(48Ca, X), E(cm)=165-220 MeV; 238U(20Ne, X), E(cm)=95-14 MeV; 242Pu(16O, X), E(cm)=80-130 MeV; 232Th(26Mg, X), E(cm)=110-160 MeV; 208Pb(48Ca, 2n), E(cm)=170-245 MeV; 208Pb(48Ca, 3n), E(cm)=180-258 MeV; 208Pb(48Ca, 4n), E(cm)=190-275 MeV; 208Pb(48Ca, 5n), E(cm)=200-280 MeV; 208Pb(40Ca, 2n), E(cm)=160-190 MeV; 208Pb(40Ca, 3n), E(cm)=170-200 MeV; 208Pb(40Ca, 4n), E(cm)=175-215 MeV; 208Pb(40Ca, 5n), E(cm)=200-220 MeV; 208Pb(44Ca, 2n), E(cm)=170-200 MeV; 208Pb(44Ca, 3n), E(cm)=175-210 MeV; 208Pb(44Ca, 4n), E(cm)=175-215 MeV; 208Pb(44Ca, 5n), E(cm)=180-225 MeV; 233U(20Ne, 4n), E(cm)=90-135 MeV; 233U(20Ne, 5n), E(cm)=105-140 MeV; 233U(20Ne, n), E(cm)=115-140 MeV; 235U(20Ne, 4n), E(cm)=90-135 MeV; 235U(20Ne, 5n), E(cm)=100-140 MeV; 235U(20Ne, n), E(cm)=110-140 MeV; 238U(20Ne, 4n), E(cm)=90-135 MeV; 238U(20Ne, 5n), E(cm)=95-140 MeV; 238U(20Ne, n), E(cm)=105-140 MeV; calculated σ(E), time evolution of binding energies and root-mean-square charge radii for 48Ca and 208Pb, excitation functions, static barrier in collision, evolution density profile for heads-on collision, production σ for new isotopes - 243,244,245,246,247,248No.Improved quantum molecular dynamical model (ImQMD) incorporated with a statistical model and the dinuclear system (DNS) model calculations. Comparison to available experimental data.

doi: 10.1103/PhysRevC.106.014625
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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 T1/2, 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.


2021SV02      Phys.Part. and Nucl.Lett. 18, 445 (2021)

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

The New 249No Isotope

RADIOACTIVITY 249No, 245Fm(α) [from 204Pb(48Ca, X), E=225.4 MeV]; measured decay products, Eα, Iα; deduced Q-values, T1/2, an upper limit on the fission branch. Comparison with available data. SHELS separator using the GABRIELA detector array.

doi: 10.1134/s1547477121040154
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2021TE08      Bull.Rus.Acad.Sci.Phys. 85, 1167 (2021)

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

Spectroscopy of the Decay Properties of Transfermium Isotopes in Dubna

RADIOACTIVITY 256Rf(α), (SF) [from 208Pb(50Ti, 2n)256Rf, E not given]; 249,250,252,254No(α) [from 204,206,208Pb(48Ca, X)252No/254No/256No, E not given]; measured decay products, Eα, Iα, Eγ, Iγ, Eβ, Iβ; deduced level energies, J, π, T1/2. U-400 cyclotron at the Flerov Nuclear Reactions Laboratory of the Joint Institute for Nuclear Research and the SHELS kinematic separator.

doi: 10.3103/S1062873821100257
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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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2020DE36      Eur.Phys.J. A 56, 224 (2020)

H.M.Devaraja, S.Heinz, D.Ackermann, T.Gobel, F.P.Hessberger, S.Hofmann, J.Maurer, G.Munzenberg, A.G.Popeko, A.V.Yeremin

New studies and a short review of heavy neutron-rich transfer products

NUCLEAR REACTIONS 238U(48Ca, X), E=233.3 MeV; measured reaction products, Eγ, Iγ. 207,208,209,210Tl, 211,212,213,214Pb, 211,212,213,214Bi, 213,214,215,216,217,218Po, 213,214,215,216,217At, 213Rn, 217,218,219,220,221,222Rn, 214Fr, 219Fr, 221Fr, 215Ra, 220,221,222,223,224Ra, 216Ac, 221Ac, 223Ac, 225,226,227,228,229Ac, 223,224Th, 226Th, 231,233Th, 232,234,236Pa, 237,238Pa, 230U, 237U, 239U, 238,239,240,241,242Np; deduced isotopic distributions, production σ.

doi: 10.1140/epja/s10050-020-00229-2
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2020KU23      Bull.Rus.Acad.Sci.Phys. 84, 932 (2020)

A.A.Kuznetsova, A.V.Yeremin, A.Lopez-Martens, K.Hauschild, A.G.Popeko, O.N.Malyshev, V.I.Chepigin, A.I.Svirikhin, A.V.Isaev, Yu.A.Popov, M.L.Chelnokov, O.Dorvaux, B.Gall, M.S.Tezekbayeva

Detailed Study of the Radioactive Decay Properties of No, Rf, and Db Isotopes

RADIOACTIVITY 256,258Rf(α), 250,252,254No, 256,257,258Db(SF); measured decay products, Eα, Iα; deduced T1/2, production σ.

doi: 10.3103/S1062873820080225
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2020YE02      Phys.Atomic Nuclei 83, 503 (2020)

A.V.Yeremin, A.G.Popeko, O.N.Malyshev, A.V.Isaev, A.A.Kuznetsova, Yu.A.Popov, A.I.Svirikhin, E.A.Sokol, M.S.Tezekbayeva, M.L.Chelnokov, V.I.Chepigin, A.Lopez-Martens, K.Hauschild, O.Dorvaux, B.Gall, J.Piot, S.Antalic, P.Mosat, D.Tonev, E.Stefanova

Spectroscopy of the Isotopes of Transfermium Elements in Dubna: Current Status and Prospects

NUCLEAR REACTIONS 242Pu(22Ne, X)264Rf, 238U(22Ne, X)260No, 248Cm(22Ne, X)270Sg, E not given; analyzed available data; deduced opportunities.

RADIOACTIVITY 256Rf(α), (SF) [from 208Pb(50Ti, X)256Rf, E not given]; analyzed available data; deduced T1/2, branching ratios.

doi: 10.1134/S1063778820040109
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2019DE11      Eur.Phys.J. A 55, 25 (2019)

H.M.Devaraja, S.Heinz, O.Beliuskina, S.Hofmann, C.Hornung, G.Munzenberg, D.Ackermann, M.Gupta, Y.K.Gambhir, R.A.Henderson, F.P.Hessberger, A.V.Yeremin, B.Kindler, B.Lommel, J.Maurer, K.J.Moody, K.Nishio, A.G.Popeko, M.A.Stoyer, D.A.Shaughnessy

Population of nuclides with A ≥ 98 in multi-nucleon transfer reactions of 48Ca + 248Cm

NUCLEAR REACTIONS 248Cm(48Ca, x), E=265.4, 270.2 MeV; measured production σ for directly populated nuclei 252,254Cf, 254m,256mEs and 260No[the last reaction used was 18O+254Es at 99 MeV] and for 254,256Fm from parent decay using SHIP selector to select the fusion products and (in another run) target-like transfer reaction products, Compared with published data.

RADIOACTIVITY 252,254,256Cf, 256Fm, 256,257,259,260Md, 259No, 262,263Lr(SF), (α); calculated T1/2, SF branching ratio.

doi: 10.1140/epja/i2019-12696-3
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD8038.


2019GE02      Phys.Rev. C 99, 034615 (2019)

J.Gehlot, A.M.Vinodkumar, N.Madhavan, S.Nath, A.Jhingan, T.Varughese, T.Banerjee, A.Shamlath, P.V.Laveen, M.Shareef, P.Jisha, P.Sandya Devi, G.N.Jyothi, M.M.Hosamani, I.Mazumdar, V.I.Chepigin, M.L.Chelnokov, A.V.Yeremin, A.K.Sinha, B.R.S.Babu

Evaporation residue cross-section measurements for 16O+203, 205Tl

NUCLEAR REACTIONS 203,205Tl(16O, X), E=82-113 MeV; measured reaction products, time of flight, σ(E) of evaporation residues (ERs), and individual exit channel σ(E) using gas-filled HYbrid Recoil Analyzer (HYRA) for separation of ERs, two silicon detectors and a multiwire proportional counter (MWPC) to detect the ERs at the 15 UD Pelletron accelerator facility of IUAC, New Delhi; simulated ER angular distributions using the code PACE4. 209Bi(12C, X), E(cm)=50-115 MeV; 208Pb(12C, X), (16O, X), (19F, X); 203,205Tl(16O, X), E=82-113 MeV; 204Pb(16O, X); 209Bi(12C, X); comparison of the present and previously measured reduced σ(E) with statistical model calculations using HIVAP code.

doi: 10.1103/PhysRevC.99.034615
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6363.


2019LO08      Phys.Lett. B 795, 271 (2019)

A.Lopez-Martens, A.V.Yeremin, M.S.Tezekbayeva, Z.Asfari, P.Brionnet, O.Dorvaux, B.Gall, K.Hauschild, D.Ackermann, L.Caceres, M.L.Chelnokov, V.I.Chepigin, M.V.Gustova, A.V.Isaev, A.V.Karpov, A.A.Kuznetsova, J.Piot, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, K.Rezynkina, H.Savajols, A.I.Svirikhin, E.A.Sokol, P.Steinegger

Measurement of proton-evaporation rates in fusion reactions leading to transfermium nuclei

NUCLEAR REACTIONS 209Bi(50Ti, X)256Db/257Db/258Db, E=255, 265, 275 MeV; measured reaction products, Eα, Iα; deduced σ.

doi: 10.1016/j.physletb.2019.06.010
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2019SV01      Phys.Part. and Nucl.Lett. 16, 768 (2019)

A.I.Svirikhin, A.V.Andreev, A.V.Yeremin, N.I.Zamyatin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, M.S.Tezekbayeva, M.L.Chelnokov, V.I.Chepigin, T.M.Schneidman, B.Andel, S.Antalic, A.Bronis, P.Mosat, B.Gall, O.Dorvaux, B.M.Retailleau, K.Hauschild, A.Lopez-Martenz, P.Chauveau, E.Stefanova, D.Tonev

Prompt Neutrons from Spontaneous 254Rf Fission

doi: 10.1134/S1547477119060311
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2019YE03      Phys.Part. and Nucl.Lett. 16, 224 (2019)

A.V.Yeremin, M.S.Tezekbayeva, A.G.Popeko, O.N.Malyshev, A.Lopez-Martens, K.Hauschild, O.Dorvaux, B.Gall, A.V.Isaev, A.V.Karpov, A.N.Kuznetsov, A.A.Kuznetsova, Yu.A.Popov, A.I.Svirikhin, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, P.Moshat

Measurement of the Production Cross Sections for Isotopes of Transfermium Elements in Complete Fusion Reactions with the Subsequent Evaporation of a Proton and Neutrons

NUCLEAR REACTIONS 209Bi(50Ti, X)256Db/257Db/258Db, E=255, 265, 275 MeV; measured reaction products, Eα, Iα; deduced σ.

doi: 10.1134/S1547477119030099
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2018RE07      Phys.Rev. C 97, 054332 (2018)

K.Rezynkina, A.Lopez-Martens, K.Hauschild, I.Deloncle, S.Peru, P.Brionnet, M.L.Chelnokov, V.I.Chepigin, O.Dorvaux, F.Dechery, H.Faure, B.Gall, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, A.I.Svirikhin, A.V.Yeremin

Influence of octupole vibration on the low-lying structure of 251Fm and other heavy N = 151 isotones

RADIOACTIVITY 255No(α)[from 48Ca(208Pb, n), E=220 MeV and from ϵ decay of 255Lr produced in 48Ca(209Bi, 2n), E=214 MeV using the VASSILISSA separator with the GABRIELA spectrometer at FLNR-JINR, Dubna]; measured Eγ, Iγ, x rays, E(ce), I(ce), Eα, αγ-coin, (ce)α-coin, isomer half-life by γ(t) using implantation silicon detector strips for conversion electrons and α detection, and HPGe detector array for γ detection. 251Fm; deduced levels, J, π, conversion coefficients, multipolarities, B(M2), B(E3), and E3/M2 mixing ratio of 5/2+ to g.s transition. Comparison with previous experimental results, and with theoretical calculations. Systematics of low-lying excited states in 245Pu, 247Cm, 249Cf, 251Fm, 253No, 255Rf.

NUCLEAR STRUCTURE 246,247Cm, 248,249Cf, 250,251Fm, 252,253No, 254Rf; calculated energies of 2- phonon levels in even-A, and 5/2+ states from 2- phonon levels built on 9/2- ground states in odd-A nuclei, B(E3) using QRPA with Gogny D1M parametrization, configuration amplitudes for odd-A isotopes from QPM with Woods-Saxon potential. Comparison with experimental data.

doi: 10.1103/PhysRevC.97.054332
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2018SV02      Bull.Rus.Acad.Sci.Phys. 82, 632 (2018)

A.I.Svirikhin, A.V.Yeremin, A.V.Andreev, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, T.M.Schneidman, B.Gall, O.Dorvaux, P.Brione, K.Hauschild, A.Lopez-Martenz, K.Rezynkina, S.Mullins, P.Jones, P.Mosat, B.Andel, Z.Kalaninova, M.Z.Asfari, N.Yoshihiro, J.Piot, E.Stefanova, D.Tonev

Short-Lived Isotopes of Transfermium Elements: Studying Characteristics of Spontaneous Fissioning

RADIOACTIVITY 256Rf, 250,252No(SF)[reaction created]; calculated formation of isotopes vs energy; compared with data (short- and long-lived isomers separately).

COMPILATION 236,238,240,242,244Pu, 242,244,246,248,250Cm, 249Bk, 246,250,252,254Cf, 244,246,256,258Fm, 250,252No, 256Rf, 258,260Md, 268Db(SF); 250,250m,252No; compiled average number of emitted neutrons accompanying spontaneous fission vs TKE; calculated spontaneous fission fragments TKE; compared with data.

doi: 10.3103/S1062873818060308
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2017AK02      Eur.Phys.J. A 53, 158 (2017)

N.V.Aksenov, P.Steinegger, F.Sh.Abdullin, Y.V.Albin, G.A.Bozhikov, V.I.Chepigin, R.Eichler, V.Ya.Lebedev, A.Sh.Madumarov, O.N.Malyshev, O.V.Petrushkin, A.N.Polyakov, Y.A.Popov, A.V.Sabelnikov, R.N.Sagaidak, I.V.Shirokovsky, M.V.Shumeiko, G.Ya.Starodub, Y.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, A.V.Yeremin, S.N.Dmitriev

On the volatility of nihonium (Nh, Z = 113)

RADIOACTIVITY 288,289Mc(α)[from 243Am(48Ca, xn)]; measured Nh (Z=113) decay chains using Gas-Filled Recoil Separator with gas-phase chromatographic separation (JINR Dubna); deduced large retention of elemental Nh on teflon surface from non-observation of Nh decays.

doi: 10.1140/epja/i2017-12348-8
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2017CA12      Phys.Rev. C 95, 064322 (2017)

R.Caballero-Folch, C.Domingo-Pardo, J.Agramunt, A.Algora, F.Ameil, Y.Ayyad, J.Benlliure, M.Bowry, F.Calvino, D.Cano-Ott, G.Cortes, T.Davinson, I.Dillmann, A.Estrade, A.Evdokimov, T.Faestermann, F.Farinon, D.Galaviz, A.R.Garcia, H.Geissel, W.Gelletly, R.Gernhauser, M.B.Gomez Hornillos, C.Guerrero, M.Heil, C.Hinke, R.Knobel, I.Kojouharov, J.Kurcewicz, N.Kurz, Yu.A.Litvinov, L.Maier, J.Marganiec, M.Marta, T.Martinez, F.Montes, I.Mukha, D.R.Napoli, C.Nociforo, C.Paradela, S.Pietri, Zs.Podolyak, A.Prochazka, S.Rice, A.Riego, B.Rubio, H.Schaffner, Ch.Scheidenberger, K.Smith, E.Sokol, K.Steiger, B.Sun, J.L.Tain, M.Takechi, D.Testov, H.Weick, E.Wilson, J.S.Winfield, R.Wood, P.J.Woods, A.Yeremin

β-decay half-lives and β-delayed neutron emission probabilities for several isotopes of Au, Hg, Tl, Pb, and Bi, beyond N=126

RADIOACTIVITY 204,205,206Au, 208,209,210,211Hg, 211,212,213,214,215,216Tl, 215,216,217,218Pb, 218,219,220Bi(β-)[from 9Be(238U, X), E=1 GeV/nucleon using FRS at GSI]; 210,211Hg, 211,212,213,214,215,216Tl(β-n); measured Eβ, Iβ, E(n), I(n), β-decay half-lives, beta-delayed neutron emission probabilities using BELEN array of 30 3He neutron counters. Comparison with previous experimental values, and with several theoretical calculations.

NUCLEAR REACTIONS 9Be(238U, X)200Pt/201Pt/202Pt/203Pt/204Pt/205Pt/203Au/204Au/205Au/206Au/207Au/208Au/209Au/206Hg/207Hg/208Hg/209Hg/210Hg/211Hg/212Hg/213Hg/209Tl/210Tl/211Tl/212Tl/213Tl/214Tl/215Tl/216Tl/212Pb/213Pb/214Pb/215Pb/216Pb/217Pb/218Pb/219Pb/215Bi/216Bi/217Bi/218Bi/219Bi/220Bi/221Bi/222Bi, 220Po/221Po/222Po/223Po/224Po/225Po/226Po/227Po/223At/223At/224At/225At/226At/227At/228At/229At/230At/226Rn/227Rn/228Rn/229Rn/230Rn/231Rn/230Fr/231Fr/232Fr, E=1 GeV/nucleon; measured reaction products, particle identification (A/Z) plots, number of implants using FRS separator and segmented silicon detectors (SIMBA) at UNILAC-GSI facility.

doi: 10.1103/PhysRevC.95.064322
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23395. Data from this article have been entered in the XUNDL database. For more information, click here.


2017SV02      Phys.Part. and Nucl.Lett. 14, 571 (2017)

A.I.Svirikhin, A.V.Andreev, A.V.Yeremin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, T.M.Schneidman, B.Gall, O.Dorvaux, P.Brione, K.Hauschild, A.Lopez-Martens, K.Rezynkina, S.Mullins, P.Jones, P.Mosat

Characteristics of spontaneous fission of 250No

NUCLEAR REACTIONS 204Pb(48Ca, xn), E=410-470 MeV; measured neutrons, fission fragments kinetic energy, TKEL, short-lived fragments; deduced σ vs E. 250No(SF), SF T1/2, average neutron multiplicity separately for each T1/2. 236,238,240,242,244Pu, 242,244,246,248,250Cm, 249Bk, 246,250,252,254Cf, 244,246,254,256,258Fm, 250,250m,252No, 256Rf, 258,260Md, 268Db; deduced, compiled systematics of average neutron multiplicity from SF (Spontaneous Fission) vs nucleus.

doi: 10.1134/S1547477117040161
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetF1329.


2016CA25      Phys.Rev.Lett. 117, 012501 (2016)

R.Caballero-Folch, C.Domingo-Pardo, J.Agramunt, A.Algora, F.Ameil, A.Arcones, Y.Ayyad, J.Benlliure, I.N.Borzov, M.Bowry, F.Calvino, D.Cano-Ott, G.Cortes, T.Davinson, I.Dillmann, A.Estrade, A.Evdokimov, T.Faestermann, F.Farinon, D.Galaviz, A.R.Garcia, H.Geissel, W.Gelletly, R.Gernhauser, M.B.Gomez Hornillos, C.Guerrero, M.Heil, C.Hinke, R.Knobel, I.Kojouharov, J.Kurcewicz, N.Kurz, Yu.A.Litvinov, L.Maier, J.Marganiec, T.Marketin, M.Marta, T.Martinez, G.Martinez-Pinedo, F.Montes, I.Mukha, D.R.Napoli, C.Nociforo, C.Paradela, S.Pietri, Zs.Podolyak, A.Prochazka, S.Rice, A.Riego, B.Rubio, H.Schaffner, Ch.Scheidenberger, K.Smith, E.Sokol, K.Steiger, B.Sun, J.L.Tain, M.Takechi, D.Testov, H.Weick, E.Wilson, J.S.Winfield, R.Wood, P.Woods, A.Yeremin

First Measurement of Several β-Delayed Neutron Emitting Isotopes Beyond N = 126

RADIOACTIVITY 204,205,206Au, 208,209,210,211Hg, 211,212,213Tl, 214,215,216Tl, 215,216,217,218Pb, 218,219,220Bi(β-n) [from Be(238U, X), E=1 GeV/nucleon]; measured decay products, Eβ, Iβ, En, In, β-n coinc.; deduced T1/2, neutron branching ratios. Comparison with available data, theoretical calculations.

doi: 10.1103/PhysRevLett.117.012501
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23395. Data from this article have been entered in the XUNDL database. For more information, click here.


2016HE13      Eur.Phys.J. A 52, 278 (2016)

S.Heinz, H.M.Devaraja, O.Beliuskina, V.Comas, S.Hofmann, C.Hornung, G.Munzenberg, D.Ackermann, M.Gupta, R.A.Henderson, F.P.Hessberger, B.Kindler, B.Lommel, R.Mann, J.Maurer, K.J.Moody, K.Nishio, A.G.Popeko, D.A.Shaughnessy, M.A.Stoyer, A.V.Yeremin

Synthesis of new transuranium isotopes in multinucleon transfer reactions using a velocity filter

NUCLEAR REACTIONS 248Cm(48Ca, x), E=5.3 MeV/nucleon; measured Eα, Iα, 225Pa velocity spectrum; deduced, identified 90 known isotopes and 5 new ones (3 produced directly in the reaction, 2 via precursor decays), their production σ.

doi: 10.1140/epja/i2016-16278-7
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2016HO06      Eur.Phys.J. A 52, 116 (2016)

S.Hofmann, S.Heinz, R.Mann, J.Maurer, G.Munzenberg, S.Antalic, W.Barth, L.Dahl, K.Eberhardt, R.Grzywacz, J.H.Hamilton, R.A.Henderson, J.M.Kenneally, B.Kindler, I.Kojouharov, R.Lang, B.Lommel, K.Miernik, D.Miller, K.J.Moody, K.Morita, K.Nishio, A.G.Popeko, J.B.Roberto, J.Runke, K.P.Rykaczewski, C.Scheidenberger, D.A.Shaughnessy, M.A.Stoyer, P.Thorle-Pospiech, K.Tinschert, N.Trautmann, J.Uusitalo, A.V.Yeremin

Remarks on the fission barriers of super-heavy nuclei

RADIOACTIVITY 285Fl, 291,292,293Lv, 294Og(α); calculated mass excess, Qα, shell correction energies for complete α-decay chains. Z=118, 120(α); deduced estimates for synthesis σ. Compared with calculations using macroscopic-microscopic models.

doi: 10.1140/epja/i2016-16116-0
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2016HO09      Eur.Phys.J. A 52, 180 (2016)

S.Hofmann, S.Heinz, R.Mann, J.Maurer, G.Munzenberg, S.Antalic, W.Barth, H.G.Burkhard, L.Dahl, K.Eberhardt, R.Grzywacz, J.H.Hamilton, R.A.Henderson, J.M.Kenneally, B.Kindler, I.Kojouharov, R.Lang, B.Lommel, K.Miernik, D.Miller, K.J.Moody, K.Morita, K.Nishio, A.G.Popeko, J.B.Roberto, J.Runke, K.P.Rykaczewski, S.Saro, C.Scheidenberger, H.J.Schott, D.A.Shaughnessy, M.A.Stoyer, P.Thorle-Pospiech, K.Tinschert, N.Trautmann, J.Uusitalo, A.V.Yeremin

Review of even element super-heavy nuclei and search for element

doi: 10.1140/epja/i2016-16180-4
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2016SV02      Phys.Part. and Nucl.Lett. 13, 480 (2016)

A.I.Svirikhin, A.V.Yeremin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, B.Andel, M.Z.Asfari, B.Gall, N.Yoshihiro, Z.Kalaninova, S.Mullins, J.Piot, E.Stefanova, D.Tonev

Spontaneous fission of 256Rf, new data

RADIOACTIVITY 256Rf(SF)[from 208Pb(50Ti, 2n), E=237 MeV]; measured nuclei, Eα, Iα, fission fragments, En, In; deduced fission neutron multiplicity, spontaneous fission T1/2.

COMPILATION A=236-268; compiled spontaneous fission neutron multiplicity vs mass number.

doi: 10.1134/S1547477116040129
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41613.


2015DE22      Phys.Lett. B 748, 199 (2015)

H.M.Devaraja, S.Heinz, O.Beliuskina, V.Comas, S.Hofmann, C.Hornung, G.Munzenberg, K.Nishio, D.Ackermann, Y.K.Gambhir, M.Gupta, R.A.Henderson, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, B.Lommel, K.J.Moody, J.Maurer, R.Mann, A.G.Popeko, D.A.Shaughnessy, M.A.Stoyer, A.V.Yeremin

Observation of new neutron-deficient isotopes with Z≥92 in multinucleon transfer reactions

NUCLEAR REACTIONS 248Cm(48Ca, X)216U/212Th/208Fr/219Np/223Am/215Pa/211Ac/207Fr/229Am/225Np/213Fr/233Bk/225Np, E=270 MeV; measured reaction fragments, Eα, Iα; deduced five new isotopes σ, T1/2. Comparison with available data.

doi: 10.1016/j.physletb.2015.07.006
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2015RE01      Acta Phys.Pol. B46, 623 (2015)

K.Rezynkina, K.Hauschild, A.Lopez-Martens, O.Dorvaux, B.Gall, F.Dechery, H.Faure, A.V.Yeremin, M.L.Chelnokov, V.I.Chepigin, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, A.I.Svirikhin, J.Piot, J.Rubert

First Experimental Tests of SHELS: a New Heavy Ion Separator at the JINR

NUCLEAR REACTIONS 208Pb(40Ar, xn)245Fm/246Fm, 164Dy(50Ti, xn)209Ra/210Ra/211Ra, E<220 MeV; measured reaction products, Eγ, Iγ; deduced yields.

doi: 10.5506/APhysPolB.46.623
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2015SV02      Bull.Rus.Acad.Sci.Phys. 79, 442 (2015); Izv.Akad.Nauk RAS, Ser.Fiz 79, 483 (2015)

A.I.Svirikhin, M.Gupta, A.V.Yeremin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, O.N.Malyshev, S.Mullins, A.G.Popeko, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin

Investigating neutron multiplicity during the spontaneous fission of short-lived isotopes (Z ≥ 100) using the VASSILISSA recoil separator

RADIOACTIVITY 244,246Fm, 252No(SF); measured decay products, En, In; deduced neutron multiplicities, total kinetic energy spectra. Comparison with systematics for the average number of spontaneous fission neutrons depending on A and Coulomb parameter Z2/A1/3.

doi: 10.3103/S1062873815040310
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41539.


2014CA23      Nucl.Data Sheets 120, 81 (2014)

R.Caballero-Folch, C.Domingo-Pardo, G.Cortes, J.L.Tain, J.Agramunt, A.Algora, F.Ameil, Y.Ayyad, J.Benlliure, M.Bowry, F.Calvino, D.Cano-Ott, T.Davinson, I.Dillmann, A.Estrade, A.Evdokimov, T.Faestermann, F.Farinon, D.Galaviz, A.Garcia-Rios, H.Geissel, W.Gelletly, R.Gernhauser, M.B.Gomez Hornillos, C.Guerrero, M.Heil, C.Hinke, R.Knobel, I.Kojouharov, J.Kurcewicz, N.Kurz, Y.Litvinov, L.Maier, J.Marganiec, M.Marta, T.Martinez, F.Montes, I.Mukha, D.R.Napoli, C.Nociforo, C.Paradela, S.Pietri, Zs.Podolyak, A.Prochazka, S.Rice, A.Riego, B.Rubio, H.Schaffner, C.Scheidenberger, K.Smith, E.Sokol, K.Steiger, B.Sun, M.Takechi, D.Testov, H.Weick, E.Wilson, J.S.Winfield, R.Wood, P.J.Woods, A.Yeremin

β-decay and β-delayed Neutron Emission Measurements at GSI-FRS Beyond N=126, for r-process Nucleosynthesis

RADIOACTIVITY 208,209,210,211Hg, 211,212,213,214,215Tl, 214,215,216,217,218Pb(β-), (β-n); measured decay products, Eβ, Iβ, En, In.; deduced preliminary T1/2.

doi: 10.1016/j.nds.2014.07.012
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2014DM01      Mendeleev Commun. 24, 253 (2014)

S.N.Dmitriev, N.V.Aksenov, Y.V.Albin, G.A.Bozhikov, M.L.Chelnokov, V.I.Chepygin, R.Eichler, A.V.Isaev, D.E.Katrasev, V.Y.Lebedev, O.N.Malyshev, O.V.Petrushkin, L.S.Porobanuk, M.A.Ryabinin, A.V.Sabelnikov, E.A.Sokol, A.V.Svirikhin, G.Ya.Starodub, I.Usoltsev, G.K.Vostokin, A.V.Yeremin

Pioneering experiments on the chemical properties of element 113

NUCLEAR REACTIONS 243Am(48Ca, X)284Nh/285Nh, E=242 MeV; measured reaction products, Eα, Iα; deduced yields.

RADIOACTIVITY 288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α), 268Db(SF); measured decay products, Eα, Iα; deduced α-particle energies, T1/2.

doi: 10.1016/j.mencom.2014.09.001
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2014LO10      Eur.Phys.J. A 50, 132 (2014)

A.Lopez-Martens, K.Hauschild, K.Rezynkina, O.Dorvaux, B.Gall, F.Dechery, H.Faure, A.V.Yeremin, M.L.Chelnokov, V.I.Chepigin, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, E.A.Sokol, A.I.Svirikhin, J.Piot, J.Rubert

Fine structure in the alpha decay of 224U

doi: 10.1140/epja/i2014-14132-8
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Data from this article have been entered in the XUNDL database. For more information, click here.


2014NI16      Nucl.Data Sheets 119, 299 (2014)

K.Nishio, H.Ikezoe, S.Hofmann, D.Ackermann, Y.Aritomo, V.F.Comas, Ch.E.Dullmann, S.Heinz, J.A.Heredia, F.P.Hessberger, K.Hirose, J.Khuyagbaatar, B.Kindler, I.Kojouharov, B.Lommel, M.Makii, R.Mann, S.Mitsuoka, I.Nishinaka, T.Ohtsuki, S.Saro, M.Schadel, A.G.Popeko, A.Turler, Y.Wakabayashi, Y.Watanabe, A.Yakushev, A.Yeremin

Study of Heavy-ion Induced Fission for Heavy Element Synthesis

NUCLEAR REACTIONS 238U(30Si, F), (34S, F), E*=30-68 MeV;238U(36S, F), E(cm)=140-180 MeV; measured reaction products; calculated σ; deduced σ. 238U(30Si, xn), E(cm)=125-160 MeV;238U(34S, xn), E(cm)=140-180 MeV; measured reaction products; deduced σ; calculated σ.

doi: 10.1016/j.nds.2014.08.082
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2012FO26      Phys.Part. and Nucl.Lett. 9, 496 (2012)

A.S.Fomichev, V.Chudoba, A.V.Daniel, M.S.Golovkov, V.A.Gorshkov, S.A.Krupko, Yu.Ts.Oganessian, G.S.Popeko, S.I.Sidorchuk, R.S.Slepnev, G.M.Ter Akopian, R.Wolski, V.I.Chepigin, D.E.Katrasev, O.N.Malyshev, A.I.Svirikhin, A.V.Yeremin, Ch.Briancon, K.Hauschild, A.Korichi, M.-H.Ha, F.Hanappe, O.Dorvaux, L.Stuttge

Study of complete and incomplete fusion for loosely bound projectiles 6He and 6Li on 165Ho and 166Er targets

NUCLEAR REACTIONS 165Ho(6Li, 5n), (6Li, 3nα), E=58 MeV; 166Er(6He, 6n), (6He, 4nα), E=64 MeV; measured reaction products, Eα, Iα, Eγ, Iγ; deduced partial σ, complete fusion suppression factors. Comparison with EMPIRE and TALYS nuclear model code calculations.

doi: 10.1134/S1547477112060076
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2012HO12      Eur.Phys.J. A 48, 62 (2012)

S.Hofmann, S.Heinz, R.Mann, J.Maurer, J.Khuyagbaatar, D.Ackermann, S.Antalic, W.Barth, M.Block, H.G.Burkhard, V.F.Comas, L.Dahl, K.Eberhardt, J.Gostic, R.A.Henderson, J.A.Heredia, F.P.Hessberger, J.M.Kenneally, B.Kindler, I.Kojouharov, J.V.Kratz, R.Lang, M.Leino, B.Lommel, K.J.Moody, G.Munzenberg, S.L.Nelson, K.Nishio, A.G.Popeko, J.Runke, S.Saro, D.A.Shaughnessy, M.A.Stoyer, P.Thorle-Pospiech, K.Tinschert, N.Trautmann, J.Uusitalo, P.A.Wilk, A.V.Yeremin

The reaction 48Ca + 248Cm → 296116* studied at the GSI-SHIP

NUCLEAR REACTIONS 248Cm(48Ca, X)292Lv/293Lv, E=265.4, 270.2 MeV; measured reaction products, Eα, Iα(t) from 116 decay, 116 fission using SHIP velocity filter. 288,289Fl, 284,285Cn, 281Ds, 277Hs; deduced σ, T1/2, ground state quadrupole deformation, quasiparticle excitations, Q-values for different α decay chains. Comparison with other data.

doi: 10.1140/epja/i2012-12062-1
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2012SV02      Eur.Phys.J. A 48, 121 (2012)

A.I.Svirikhin, A.V.Andreev, V.N.Dushin, M.L.Chelnokov, V.I.Chepigin, M.Gupta, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.N.Kuznetsov, O.N.Malyshev, S.Mullins, A.G.Popeko, E.A.Sokol, A.V.Yeremin

The emission of prompt neutrons from the spontaneous fission of 252No and 244Fm

RADIOACTIVITY 244Fm(SF)[from 206Pb(40Ar, 2n), E≈186 MeV];252No(SF)[from 206Pb(48Ca, 2n), E≈216 MeV]; measured spontaneous fission prompt En, In using 3He-filled counters, ER, fission fragments, Eα, Iα; calculated average TKE, average neutron multiplicity; deduced neutron multiplicity distribution, average neutron multiplicity. 244Fm deduced pre-neutron TKE.

doi: 10.1140/epja/i2012-12121-7
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2011HA06      Acta Phys.Pol. B42, 605 (2011)

T.W.Hagen, A.Lopez-Martens, K.Hauschild, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, D.Curien, O.Dorvaux, G.Drafta, B.Gall, A.Gorgen, M.Guttormsen, A.V.Isaev, I.N.Izosimov, A.P.Kabachenko, D.E.Katrasev, T.Kutsarova, A.N.Kuznetsov, A.C.Larsen, O.N.Malyshev, A.Minkova, S.Mullins, H.T.Nyhus, D.Pantelica, J.Piot, A.G.Popeko, S.Saro, N.Scintee, S.Siem, E.A.Sokol, A.I.Svirikhin, A.V.Yeremin

Spectroscopy of Transfermium Nuclei Using the GABRIELA Setup

COMPILATION 243Pu, 245Cm, 247Cf, 249Fm, 251No; compiled low-energy level properties for N=149 isotones.

doi: 10.5506/APhysPolB.42.605
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2011LO06      Nucl.Phys. A852, 15 (2011)

A.Lopez-Martens, T.Wiborg-Hagen, K.Hauschild, M.L.Chelnokov, V.I.Chepigin, D.Curien, O.Dorvaux, G.Drafta, B.Gall, A.Gorgen, M.Guttormsen, A.V.Isaev, I.N.Izosimov, A.P.Kabachenko, D.E.Katrasev, T.Kutsarova, A.N.Kuznetsov, A.C.Larsen, O.N.Malyshev, A.Minkova, S.Mullins, H.T.Nyhus, D.Pantelica, J.Piot, A.G.Popeko, S.Saro, N.Scintee, S.Siem, N.U.H.Syed, E.A.Sokol, A.I.Svirikhin, A.V.Yeremin

Spectroscopy of 253No and its daughters

NUCLEAR REACTIONS 207Pb(48Ca, 2n), (48Ca, 3n), E=220 MeV; measured Eα, Iα, Eγ, Iγ, E(ce), I(ce), αγ, α(ce)-coin; deduced ICCs, multipolarities, Qα. 253No, 249Fm; deduced levels, J, π, T1/2.

doi: 10.1016/j.nuclphysa.2011.01.012
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2010EI01      Radiochim.Acta 98, 133 (2010)

R.Eichler, N.V.Aksenov, Yu.V.Albin, A.V.Belozerov, G.A.Bozhikov, V.I.Chepigin, S.N.Dmitriev, R.Dressler, H.W.Gaggeler, V.A.Gorshkov, R.A.Henderson, A.M.Johnsen, J.M.Kenneally, V.Ya.Lebedev, O.N.Malyshev, K.J.Moody, Yu.Ts.Oganessian, O.V.Petrushkin, D.Piguet, A.G.Popeko, P.Rasmussen, A.Serov, D.A.Shaughnessy, S.V.Shishkin, A.V.Shutov, M.A.Stoyer, N.J.Stoyer, A.I.Svirikhin, E.E.Tereshatov, G.K.Vostokin, M.Wegrzecki, P.A.Wilk, D.Wittwer, A.V.Yeremin

Indication for a volatile element 114

RADIOACTIVITY 287,288Fl(α); measured atomic properties of element 114; deduced volatility. Comparison with Hg, At, and element 112 (Cn).

doi: 10.1524/ract.2010.1705
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2010HE10      Eur.Phys.J. A 43, 55 (2010)

F.P.Hessberger, S.Antalic, B.Sulignano, D.Ackermann, S.Heinz, S.Hofmann, B.Kindler, J.Khuyagbaatar, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, S.Saro, B.Streicher, J.Uusitalo, M.Venhart, A.V.Yeremin

Decay studies of K isomers in 254No

NUCLEAR REACTIONS 208Pb(48Ca, 2n), E=213.6, 218.4 MeV; measured Eγ, Iγ, Eα, Iα, E(ce), I(ce), γγ-, γ(ce)-coin. 254No; deduced branching ratios, bands, levels, J, π, T1/2, configurations.

RADIOACTIVITY 254Md, 254No(α), (EC) [from 208Pb(48Ca, 2n), E=213.6, 218.4 MeV]; measured Eγ, Iγ, Eα, Iα, E(ce), I(ce), γγ-, γ(ce)-coin; deduced branching ratios, bands, levels, J, π, T1/2, configurations.

doi: 10.1140/epja/i2009-10899-9
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2010NI14      Phys.Rev. C 82, 024611 (2010)

K.Nishio, S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, Y.Aritomo, V.F.Comas, Ch.E.Dullmann, A.Gorshkov, R.Graeger, K.Hagino, S.Heinz, J.A.Heredia, K.Hirose, H.Ikezoe, J.Khuyagbaatar, B.Kindler, I.Kojouharov, B.Lommel, R.Mann, S.Mitsuoka, Y.Nagame, I.Nishinaka, T.Ohtsuki, A.G.Popeko, S.Saro, M.Schadel, A.Turler, Y.Watanabe, A.Yakushev, A.V.Yeremin

Nuclear orientation in the reaction 34S+238U and synthesis of the new isotope 268Hs

NUCLEAR REACTIONS 238U(34S, xn)267Hs/268Hs, E=148-170 MeV; measured evaporation residues and Eα, Eγ, x-rays, (fragment)α-, (fragment)γ-coin, production σ, fission σ(E), mass distribution of fission fragments as a function of energy. Comparison of fission σ(E) with calculations based on the three-dimensional Langevin equation and deformed target nuclei. Coupled-channel calculations for mass distributions. 268,269Sg, 272,273Hs, 269,271,272Mt, 274,275,276,277Sg, 273,275,276Rg, 278,279,280,281Cn; theoretical estimates of production rates in 243Am, 244Pu, 248Cm(34S, xn), (36S, xn) reactions.

RADIOACTIVITY 267,268Hs(α)[from 238U(34S, X), E=163.0 MeV]; 263Sg, 259Rf(α); 264Sg(SF); measured Eα, Eγ, x-rays, (fragment)α-, (fragment)γ-coin, half-lives; deduced Qα. Systematics of Qα values for even-even Z=104-114 and N=150-170 nuclei.

doi: 10.1103/PhysRevC.82.024611
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2010SV01      Eur.Phys.J. A 44, 393 (2010)

A.I.Svirikhin, V.N.Dushin, M.L.Chelnokov, V.I.Chepigin, I.N.Izosimov, D.E.Katrasev, O.N.Malyshev, A.Minkova, A.G.Popeko, E.A.Sokol, A.V.Yeremin

Neutron multiplicity at spontaneous fission of 246Fm

RADIOACTIVITY 246Fm(SF)[from 208Pb(40Ar, 2n), E=186 MeV]; measured En, In(θ), Eα, Iα, E(particle), I(particle), (particle)n-coin; deduced neutron multiplicity, T1/2, spontaneous fission branching ratio.

NUCLEAR REACTIONS 208Pb(40Ar, 2n), E=186 MeV; measured σ.

doi: 10.1140/epja/i2010-10968-0
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2010YE06      Pramana 75, 3 (2010)

A.Yeremin, O.Malyshev, A.Popeko, A.Lopez-Martens, K.Hauschild, O.Dorvaux, S.Saro, D.Pantelica, S.Mullin

Gamma and electron spectroscopy of transfermium isotopes at Dubna: Results and plans

RADIOACTIVITY 253No(α); measured Eγ, γ; deduced energy spectrum of γ-rays, E(ce).

doi: 10.1007/s12043-010-0060-5
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2009HE20      Eur.Phys.J. A 41, 145 (2009)

F.P.Hessberger, S.Hofmann, B.Streicher, B.Sulignano, S.Antalic, D.Ackermann, S.Heinz, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, A.G.Popeko, S.Saro, J.Uusitalo, A.V.Yeremin

Decay properties of neutron-deficient isotopes of elements from Z = 101 to Z = 108

NUCLEAR REACTIONS 207Pb(54Cr, n), (54Cr, 2n), 208Pb(58Fe, n), (54Cr, 2n), 209Bi(54Cr, n), (50Ti, n), (50Ti, 2n), (48Ca, 4n), E not given; measured Eα, Iα, Eγ, (fragment)α-coin, αψ-coin, σ; deduced decay chain properties, T1/2, levels, J, π. Comparison with other data and calculations.

RADIOACTIVITY 249Md, 253Lr, 257,258Db, 259,260Sg, 262Bh, 265Hs(α), (SF), (EC); measured Eα, Iα, T1/2; deduced levels, J, π. Analysis of decay chains and production routes. Comparison with other data and calculations.

doi: 10.1140/epja/i2009-10826-2
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2009OG03      Phys.Rev. C 79, 024608 (2009)

Yu.Ts.Oganessian, S.N.Dmitriev, A.V.Yeremin, N.V.Aksenov, G.A.Bozhikov, V.I.Chepigin, M.L.Chelnokov, V.Ya.Lebedev, O.N.Malyshev, O.V.Petrushkin, S.V.Shishkin, A.I.Svirikhin, E.E.Tereshatov, G.K.Vostokin

Attempt to produce the isotopes of element 108 in the fusion reaction 136Xe+136Xe

NUCLEAR REACTIONS 136Xe(136Xe, xn)269Hs/270HS/271Hs, E=750 MeV;measured Eα, Iα, upper limit of production σ for Z=108 element; deduced fusion probability. Calculated excitation functions for one-neutron to four-neutron channels. Ti(136Xe, xn)168Os/169Os/170Os/171Os/172Os/, E=750 MeV; measured Eα, Iα.

doi: 10.1103/PhysRevC.79.024608
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2008DV02      Phys.Rev.Lett. 100, 132503 (2008)

J.Dvorak, W.Bruchle, M.Chelnokov, Ch.E.Dullmann, Z.Dvorakova, K.Eberhardt, E.Jager, R.Krucken, A.Kuznetsov, Y.Nagame, F.Nebel, K.Nishio, R.Perego, Z.Qin, M.Schadel, B.Schausten, E.Schimpf, R.Schuber, A.Semchenkov, P.Thorle, A.Turler, M.Wegrzecki, B.Wierczinski, A.Yakushev, A.Yeremin

Observation of the 3n Evaporation Channel in the Complete Hot-Fusion Reaction 26Mg+248Cm Leading to the New Superheavy Nuclide 271Hs

NUCLEAR REACTIONS 248Cm(26Mg, xn)269Hs/270Hs/271Hs, E=13-15 MeV; measured production σ. 271Hs; deduced T1/2.

doi: 10.1103/PhysRevLett.100.132503
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2008EI03      Angew.Chem. 47, 3262 (2008)

R.Eichler, N.V.Aksenov, A.V.Belozerov, G.A.Bozhikov, V.I.Chepigin, S.N.Dmitriev, R.Dressler, H.W.Gaggeler, A.V.Gorshkov, M.G.Itkis, F.Haenssler, A.Laube, V.Y.Lebedev, O.N.Malyshev, Y.T.Oganessian, O.V.Petrushkin, D.Piguet, A.G.Popeko, P.Rasmussen, S.V.Shishkin, A.A.Serov, A.V.Shutov, A.I.Svirikhin, E.E.Tereshatov, G.K.Vostokin, M.Wegrzecki, A.V.Yeremin

Thermochemical and Physical Properties of Element 112

RADIOACTIVITY 287Fl, 283Cn(α), 279Ds(SF) [from 242Pu(48Ca, 3n)297Fl, E=270 MeV]; 185Hg(α) [from 142Nd(48Ca, 5n)185Hg, E=270 MeV]; 219Rn(α) [from 242Pu(48Ca, X)219Rn, E=270 MeV]; measured decay products, Eα, Iα; deduced standard sublimation enthalpy, linear relationships for various compound classes on various chromatographic materials, volatility for element 112.

doi: 10.1002/anie.200705019
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2008HA12      Phys.Rev. C 77, 047305 (2008); Erratum Phys.Rev. C 79, 019902 (2009)

K.Hauschild, A.Lopez-Martens, A.V.Yeremin, O.Dorvaux, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, B.Gall, V.A.Gorshkov, M.Guttormsen, P.Jones, A.P.Kabachenko, A.Khouaja, A.C.Larsen, O.N.Malyshev, A.Minkova, H.T.Nyhus, Yu.Ts.Oganessian, D.Pantelica, A.G.Popeko, F.Rotaru, S.Saro, A.V.Shutov, S.Siem, A.I.Svirikhin, N.U.H.Syed

Half-life and excitation energy of the Iπ = 13/2+ isomer in 209Ra

NUCLEAR REACTIONS 174Yb(40Ar, 5n), E=192 MeV; measured half-life, α-spectra, Eγ, Iγ, γγ-, γα-coin, conversion electrons. 209Ra; deduced levels, J, π, configurations. 205,207Po, 207,209Rn, 211Ra; systematics.

doi: 10.1103/PhysRevC.77.047305
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2008HA31      Phys.Rev. C 78, 021302 (2008)

K.Hauschild, A.Lopez-Martens, A.V.Yeremin, O.Dorvaux, S.Antalic, A.V.Belozerov, Ch.Briancon, M.L.Chelnokov, V.I.Chepigin, D.Curien, B.Gall, A.Gorgen, V.A.Gorshkov, M.Guttormsen, F.Hanappe, A.P.Kabachenko, F.Khalfallah, A.C.Larsen, O.N.Malyshev, A.Minkova, A.G.Popeko, M.Rousseau, N.Rowley, S.Saro, A.V.Shutov, S.Siem, L.Stuttge, A.I.Svirikhin, N.U.H.Syed, Ch.Theisen, M.Venhart

High-K, t1/2=1.4(1) ms, isomeric state in 255Lr

RADIOACTIVITY 255Lr, 255No(α) [from 209Bi(48Ca, 2n), E=219 MeV]; measured Eα, Iα, conversion electrons, Eγ, Iγ, γα-, (ce)α-coin. 255Lr; deduced levels, J, π, hindrance factors, half-life of isomeric state.

doi: 10.1103/PhysRevC.78.021302
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2007EI02      Nucl.Phys. A787, 373c (2007)

R.Eichler, N.V.Aksenov, A.V.Belozerov, G.A.Bozhikov, V.I.Chepigin, R.Dressler, S.N.Dmitriev, H.W.Gaggeler, V.A.Gorshkov, F.Haenssler, M.G.Itkis, V.Ya.Lebedev, A.Laube, O.N.Malyshev, Yu.Ts.Oganessian, O.V.Petruschkin, D.Piguet, P.Rasmussen, S.V.Shishkin, A.V.Shutov, A.I.Svirikhin, E.E.Tereshatov, G.K.Vostokin, M.Wegrzecki, A.V.Yeremin

Confirmation of the Decay of 283112 and First Indication for Hg-like Behavior of Element 112

NUCLEAR REACTIONS 238U(48Ca, 3n), 242Pu(48Ca, 3n), E=237 MeV; measured super heavy element yield, Eα, Iα; analyzed production σ.

NUCLEAR STRUCTURE 279Ds, 283Cn, 287Fl; analyzed superheavy element production and decay data.

RADIOACTIVITY 283Cn(α); 287Fl(α), (SF); measured Eα, E(fragment), T1/2.

doi: 10.1016/j.nuclphysa.2006.12.058
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2007EI03      Nature(London) 447, 72 (2007)

R.Eichler, N.V.Aksenov, A.V.Belozerov, G.A.Bozhikov, V.I.Chepigin, S.N.Dmitriev, R.Dressler, H.W.Gaggeler, V.A.Gorshkov, F.Haenssler, M.G.Itkis, A.Laube, V.Ya.Lebedev, O.N.Malyshev, Yu.Ts.Oganessian, O.V.Petrushkin, D.Piguet, P.Rasmussen, S.V.Shishkin, A.V.Shutov, A.I.Svirikhin, E.E.Tereshatov, G.K.Vostokin, M.Wegrzecki, A.V.Yeremin

Chemical characterization of element 112

RADIOACTIVITY 287Fl, 283Cn(α), 279Ds(SF) [from 242Pu(48Ca, 3n)297Fl, E=270 MeV]; 185Hg(α) [from 142Nd(48Ca, 5n)185Hg, E=270 MeV]; 219Rn(α) [from 242Pu(48Ca, X)219Rn, E=270 MeV]; measured decay products, Eα, Iα; deduced Q-values, T1/2, element 112 chemical identification.

doi: 10.1038/nature05761
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2007HO14      Int.J.Mod.Phys. E16, 937 (2007)

S.Hofmann, D.Ackermann, S.Antalic, H.G.Burkhard, V.F.Comas, R.Dressler, Z.Gan, S.Heinz, J.A.Heredia, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, G.Munzenberg, K.Nishio, A.G.Popeko, S.Saro, H.J.Schott, B.Streicher, B.Sulignano, J.Uusitalo, A.V.Yeremin

Studies of superheavy elements at SHIP

NUCLEAR REACTIONS 238U(48Ca, X), E=233.3-239.3 MeV; measured Eα from spontaneous fission.

doi: 10.1142/S021830130700640X
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2007HO18      Eur.Phys.J. A 32, 251 (2007)

S.Hofmann, D.Ackermann, S.Antalic, H.G.Burkhard, V.F.Comas, R.Dressler, Z.Gan, S.Heinz, J.A.Heredia, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, G.Munzenberg, K.Nishio, A.G.Popeko, S.Saro, H.J.Schott, B.Streicher, B.Sulignano, J.Uusitalo, M.Venhart, A.V.Yeremin

The reaction 48Ca + 238U → 286112* studied at the GSI-SHIP

NUCLEAR REACTIONS 238U(48Ca, X), E=233.3-239.3 MeV; measured σ, Eα, (recoil)α-coin following residual nucleus decay; deduced evidence for 286Cn.

RADIOACTIVITY 283Cn(α), (SF) [from 238U(48Ca, X)]; measured Eα, (recoil)α-coin, T1/2.

doi: 10.1140/epja/i2007-10373-x
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2007HO24      J.Nucl.Radiochem.Sci. 8, 73 (2007)

S.Hofmann, H.Ikezoe, F.P.Hessberger, D.Ackermann, S.Antalic, V.F.Comas, Z.Gan, S.Heinz, J.A.Heredia, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, B.Lommel, M.Mazzocco, S.Mitsuoka, Y.Nagame, T.Ohtsuki, A.G.Popeko, S.Saro, H.J.Schott, B.Sulignano, A.Svirikhin, K.Tsukada, K.Tsuruta, A.V.Yeremin

Measurement of Evaporation Residue and Fission Cross Sections of the Reaction 30Si + 238U at Subbarrier Energies

NUCLEAR REACTIONS 238U(30Si, X), E=140-183 MeV; measured fission fragment energy and mass distributions, fission cross sections. Compared results to model calculations.


2007LO11      Eur.Phys.J. A 32, 245 (2007)

A.Lopez-Martens, K.Hauschild, A.V.Yeremin, O.Dorvaux, A.V.Belozerov, Ch.Briancon, M.L.Chelnokov, V.I.Chepigin, D.Curien, P.Desesquelles, B.Gall, V.A.Gorshkov, M.Guttormsen, F.Hanappe, A.P.Kabachenko, F.Khalfallah, A.Korichi, A.C.Larsen, O.N.Malyshev, A.Minkova, Yu.Ts.Oganessian, A.G.Popeko, M.Rousseau, N.Rowley, R.N.Sagaidak, S.Sharo, A.V.Shutov, S.Siem, L.Stuttge, A.I.Svirikhin, N.U.H.Syed, Ch.Theisen

Isomeric states in 253No

NUCLEAR REACTIONS 207Pb(48Ca, 2n), E∼217 MeV; measured Eα, Eγ, E(ce) with the Gabriela detector. 253No deduced levels, J, π, configurations.

RADIOACTIVITY 253No(α) [from 207Bi(48Ca, 2n) and subsequent decay]; measured Eα, Eγ, E(ce), αγ-, α(ce)-coin, T1/2. 253No deduced levels, J, π, configurations.

doi: 10.1140/epja/i2007-10391-8
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2007ST18      Nucl.Phys. A787, 388c (2007)

N.J.Stoyer, J.H.Landrum, P.A.Wilk, K.J.Moody, J.M.Kenneally, D.A.Shaughnessy, M.A.Stoyer, J.F.Wild, R.W.Lougheed, S.N.Dmitriev, Yu.Ts.Oganessian, S.V.Shishkin, N.V.Aksenov, E.E.Tereshatov, G.A.Bozhikov, G.K.Vostokin, V.K.Utyonkov, A.A.Yeremin

Chemical Identification of a Long-Lived Isotope of Dubnium, a Descendant of Element 115

NUCLEAR REACTIONS 238U(48Ca, 3n), E=247 MeV; measured super heavy element yield, Eα, Iα; analyzed production σ. Detailed chemical analysis procedure given.

NUCLEAR STRUCTURE 268Db, 272Bh, 276Mt, 280Rg, 284Nh, 288Mc; analyzed superheavy element production and decay data.

RADIOACTIVITY 268Db(SF); 272Bh, 276Mt, 280Rg, 284Nh, 288Mc(α); measured Eα, E(fragment), T1/2.

doi: 10.1016/j.nuclphysa.2006.12.060
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2007SU19      Eur.Phys.J. A 33, 327 (2007)

B.Sulignano, S.Heinz, F.P.Hessberger, S.Hofmann, D.Ackermann, S.Antalic, B.Kindler, I.Kojouharov, P.Kuusiniemi, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, S.Saro, B.Streicher, M.Venhart, A.V.Yeremin

Identification of a K isomer in 252No

NUCLEAR REACTIONS 206Pb(48Ca, 2n)252No, E(cm)=173.6-177 MeV; measured Eγ, Iγ, γγ-coinc. 252No deduced levels, J, π.

doi: 10.1140/epja/i2007-10469-3
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2007YE02      Physics of Part.and Nuclei 38, 492 (2007)

A.V.Yeremin

Regularities of formation and survival probability of compound nuclei in the region of Z ≥ 82: Study of complete-fusion reactions with heavy ions using the kinematic separator VASSILISSA

doi: 10.1134/S1063779607040041
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2006DV01      Phys.Rev.Lett. 97, 242501 (2006)

J.Dvorak, W.Bruchle, M.Chelnokov, R.Dressler, Ch.E.Dullmann, K.Eberhardt, V.Gorshkov, E.Jager, R.Krucken, A.Kuznetsov, Y.Nagame, F.Nebel, Z.Novackova, Z.Qin, M.Schadel, B.Schausten, E.Schimpf, A.Semchenkov, P.Thorle, A.Turler, M.Wegrzecki, B.Wierczinski, A.Yakushev, A.Yeremin

Doubly Magic Nucleus 270108Hs162

RADIOACTIVITY 269,270Hs, 265Sg(α) [from 248Cm(26Mg, xn) and subsequent decay]; measured Eα, T1/2. 266Sg(SF) [from 270Hs decay]; measured T1/2. Rapid chemical separation.

NUCLEAR REACTIONS 248Cm(26Mg, 4n), (26Mg, 5n), E=136, 145 MeV; measured delayed Eα, αα-coin; deduced production σ.

doi: 10.1103/PhysRevLett.97.242501
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2006HA17      Nucl.Instrum.Methods Phys.Res. A560, 388 (2006)

K.Hauschild, A.V.Yeremin, O.Dorvaux, A.Lopez-Martens A.V.Belozerov, Ch.Briancon, M.L.Chelnokov, V.I.Chepigin, S.A.Garcia-Santamaria, V.A.Gorshkov, F.Hanappe, A.P.Kabachenko, A.Korichi, O.N.Malyshev, Yu.Ts.Oganessian, A.G.Popeko, N.Rowley, A.V.Shutov, L.Stuttge, A.I.Svirikhin

GABRIELA: A new detector array of γ-ray and conversion electron spectroscopy of transfermium elements

RADIOACTIVITY 210,211,212Ra(IT) [from 174Yb(40Ar, xn)]; measured Eγ, Iγ, γγ-coin, T1/2. 210,211,212Ra deduced levels, J, π, T1/2. Recoil separator.

doi: 10.1016/j.nima.2006.01.107
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2006HE20      Eur.Phys.J. A 29, 165 (2006)

F.P.Hessberger, S.Hofmann, D.Ackermann, S.Antalic, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, B.Sulignano, S.Saro, B.Streicher, M.Venhart, A.V.Yeremin

Alpha-gamma decay studies of 255No

RADIOACTIVITY 255No(α) [from 208Pb(48Ca, n), 209Bi(48Ca, 2n), 238U(22Ne, 5n)]; measured Eα, Eγ, αγ-coin, T1/2. 251Fm deduced levels, J, π. Level systematics in neighboring nuclides discussed.

doi: 10.1140/epja/i2006-10083-y
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2006HE27      Eur.Phys.J. A 30, 561 (2006)

F.P.Hessberger, S.Hofmann, D.Ackermann, S.Antalic, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, B.Sulignano, S.Saro, B.Streicher, M.Venhart, A.V.Yeremin

Alpha-gamma decay studies of 255Rf, 251No and 247Fm

RADIOACTIVITY 255Rf, 251No, 247Fm(α) [from 207Pb(50Ti, 2n), 206Pb(48Ca, 3n), and subsequent decay]; measured Eγ, Eα, αγ-, γγ-coin. 243Cf, 247Fm, 251No deduced levels, J, π, ICC, isomeric states features. Velocity filter.

doi: 10.1140/epja/i2006-10137-2
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2006HO29      J.Nucl.Radiochem.Sci. 7, R25 (2006)

S.Hofmann, D.Ackermann, S.Antalic, H.G.Burkhard, R.Dressler, F.P.Hessberger, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, G.Munzenberg, K.Nishio, A.G.Popeko, S.Saro, H.J.Schott, B.Streicher, B.Sulignano, J.Uusitalo, A.V.Yeremin

Study of Superheavy Elements at the GSI-SHIP

NUCLEAR REACTIONS 238U(48Ca, X)286Cn, E=34.5 MeV; measured reaction products; deduced σ, T1/2. Comparison with available data. SHIP separator.

doi: 10.14494/jnrs2000.7.R25
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2006LO12      Phys.Rev. C 74, 044303 (2006)

A.Lopez-Martens, K.Hauschild, A.V.Yeremin, A.V.Belozerov, Ch.Briancon, M.L.Chelnokov, V.I.Chepigin, D.Curien, O.Dorvaux, B.Gall, V.A.Gorshkov, M.Guttormsen, F.Hanappe, A.P.Kabachenko, F.Khalfallah, A.Korichi, A.C.Larsen, O.N.Malyshev, A.Minkova, Yu.Ts.Oganessian, A.G.Popeko, M.Rousseau, N.Rowley, R.N.Sagaidak, S.Sharo, A.V.Shutov, S.Siem, A.I.Svirikhin, N.U.H.Syed, Ch.Theisen

Detailed spectroscopy of 249Fm

RADIOACTIVITY 253No(α) [from 207Pb(48Ca, 2n)]; measured Eα, Eγ, αγ-coin. 249Fm deduced levels, J, π, ICC, configurations. Level systematics in neighboring isotones discussed.

doi: 10.1103/PhysRevC.74.044303
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2006NI10      Eur.Phys.J. A 29, 281 (2006)

K.Nishio, S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, V.F.Comas, Z.Gan, S.Heinz, J.A.Heredia, H.Ikezoe, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, B.Lommel, R.Mann, M.Mazzocco, S.Mitsuoka, Y.Nagame, T.Ohtsuki, A.G.Popeko, S.Saro, H.J.Schott, B.Sulignano, A.Svirikhin, K.Tsukada, K.Tsuruta, A.V.Yeremin

Measurement of evaporation residue cross-sections of the reaction 30Si + 238U at subbarrier energies

NUCLEAR REACTIONS 238U(30Si, F), (30Si, 3n), (30Si, 4n), (30Si, 5n), E=145.5, 151.2, 163.5 MeV; measured fission and evaporation residue σ.

RADIOACTIVITY 263,265Sg, 259Rf, 255No(α) [from 238U(30Si, xn) and subsequent decay]; measured Eα, T1/2. 262,264Sg, 261Rf(SF) [from 238U(30Si, xn) and subsequent decay]; measured T1/2, fission fragments kinetic energy.

doi: 10.1140/epja/i2006-10091-y
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2006PO10      Phys.Atomic Nuclei 69, 1183 (2006)

A.G.Popeko, A.V.Belozerov, Ch.Briancon, V.I.Chepigin, O.Dorvaux, K.Hauschild, A.P.Kabachenko, A.Korichi, A.Lopez-Martens, O.N.Malyshev, Yu.Ts.Oganessian, S.Saro, A.V.Shutov, A.I.Svirikhin, A.V.Yeremin

GABRIELA Setup for Nuclear Spectroscopy of the Transfermium Element Isotopes at the VASSILISSA Separator

NUCLEAR REACTIONS 164Dy(48Ca, 5n), E not given; measured Eγ, Iγ, (particle)γ-coin.

RADIOACTIVITY 253No(α) [from 207Pb(48Ca, 2n)]; measured Eγ, E(ce), γα-, (ce)α-coin. 249Fm deduced levels, J, π. 255No(α) [from 208Pb(48Ca, n)]; measured prompt and delayed αγ-, αβ-coin. 251Fm deduced isomeric state.

doi: 10.1134/S1063778806070143
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2005DM03      Mendeleev Commun. 15, 1 (2005)

S.N.Dmitriev, Y.T.Oganessyan, V.K.Utyonkov, S.V.Shishkin, A.V.Yeremin, Y.V.Lobanov, Y.S.Tsyganov, V.I.Chepygin, E.A.Sokol, G.K.Vostokin, N.V.Aksenov, M.Hussonnois, M.G.Itkis, H.W.Gaggeler, D.Schumann, H.Bruchertseifer, R.Eichler, D.A.Shaughnessy, P.A.Wilk, J.M.Kenneally, M.A.Stoyer, J.F.Wild

Chemical identification of dubnium as a decay product of element 115 produced in the reaction 48Ca + 243Am

NUCLEAR REACTIONS 243Am(48Ca, 3n), E=247 MeV; measured super heavy element yield, Eα, Iα; analyzed production σ. Radiochemical experiment, identification of the long-lived decay product dubnium.

NUCLEAR STRUCTURE 268Db, 272Bh, 276Mt, 280Rg, 284Nh, 288Mc; analyzed superheavy element production and decay data.

RADIOACTIVITY 268Db(SF); 272Bh, 276Mt, 280Rg, 284Nh, 288Mc(α); measured Eα, E(fragment), T1/2.

doi: 10.1070/MC2005v015n01ABEH002077
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2005FA17      Phys.Rev. C 72, 064614 (2005)

G.Fazio, G.Giardina, G.Mandaglio, R.Ruggeri, A.I.Muminov, A.K.Nasirov, Yu.Ts.Oganessian, A.G.Popeko, R.N.Sagaidak, A.V.Yeremin, S.Hofmann, F.Hanappe, C.Stodel

Strong influence of the entrance channel on the formation of compound nuclei 216, 222Th* and their evaporation residues

NUCLEAR REACTIONS 176Hf(40Ar, X), 130,136Xe(86Kr, X), 92Zr(124Sn, X), 174Yb(48Ca, X), E* ≈ 10-100 MeV; calculated capture and complete fusion σ; analyzed evaporation residue σ, related data; deduced entrance channel effects.

doi: 10.1103/PhysRevC.72.064614
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2005OG02      Phys.Rev. C 72, 034611 (2005)

Yu.Ts.Oganessian, V.K.Utyonkov, S.N.Dmitriev, Yu.V.Lobanov, M.G.Itkis, A.N.Polyakov, Yu.S.Tsyganov, A.N.Mezentsev, A.V.Yeremin, A.A.Voinov, E.A.Sokol, G.G.Gulbekian, S.L.Bogomolov, S.Iliev, V.G.Subbotin, A.M.Sukhov, G.V.Buklanov, S.V.Shishkin, V.I.Chepigin, G.K.Vostokin, N.V.Aksenov, M.Hussonnois, K.Subotic, V.I.Zagrebaev, K.J.Moody, J.B.Patin, J.F.Wild, M.A.Stoyer, N.J.Stoyer, D.A.Shaughnessy, J.M.Kenneally, P.A.Wilk, R.W.Lougheed, H.W.Gaggeler, D.Schumann, H.Bruchertseifer, R.Eichler

Synthesis of elements 115 and 113 in the reaction 243Am + 48Ca

NUCLEAR REACTIONS 243Am(48Ca, 3n), (48Ca, 4n), E=248, 253 MeV; measured delayed Eα, αα-coin; deduced σ.

RADIOACTIVITY 287,288Mc, 283,284Nh, 279,280Rg, 275,276Mt, 272Bh(α) [from 243Am(48Ca, xn) and subsequent decay]; measured Eα, T1/2; deduced Qα. 267,268Db(SF); measured T1/2.

doi: 10.1103/PhysRevC.72.034611
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2005SC32      Radiochim.Acta 93, 727 (2005)

D.Schumann, H.Bruchertseifer, R.Eichler, B.Eichler, H.W.Gaggeler, S.N.Dmitriev, Yu.Ts.Oganessian, V.P.Utyonkov, S.V.Shishkin, A.V.Yeremin, Yu.V.Lobanov, Y.S.Tsyganov, V.I.Chepygin, E.A.Sokol, G.K.Vostokin, N.V.Aksenov, M.Hussonnois, M.G.Itkis

Chemical procedure applied for the identification of Rf/Db produced in the 48Ca + 243Am reaction

NUCLEAR REACTIONS 243Am(48Ca, xn), E=247 MeV; measured Eγ, fission fragment spectra following chemical separation; deduced Z=115 production.

doi: 10.1524/ract.2005.93.12.727
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2005YE02      Nucl.Instrum.Methods Phys.Res. A539, 441 (2005)

A.V.Yeremin, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, A.P.Kabachenko, O.N.Malyshev, A.G.Popeko, R.N.Sagaidak, A.V.Shutov, E.A.Sokol, A.I.Svirikhin

Neutron detector at the focal plane of the set up VASSILISSA

RADIOACTIVITY 252No(SF) [from 206Pb(48Ca, 2n)]; measured fission fragments spectra, prompt neutron multiplicity. Recoil separator.

doi: 10.1016/j.nima.2004.09.043
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2004HO09      Nucl.Phys. A734, 93 (2004)

S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, P.Cagarda, B.Kindler, P.Kuusiniemi, M.Leino, B.Lommel, O.N.Malyshev, R.Mann, G.Munzenberg, A.G.Popeko, S.Saro, B.Streicher, A.V.Yeremin

Properties of heavy nuclei measured at the GSI SHIP

doi: 10.1016/j.nuclphysa.2004.01.018
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2004MA01      Nucl.Instrum.Methods Phys.Res. A516, 529 (2004)

O.N.Malyshev, A.V.Yeremin, A.G.Popeko, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, S.Hofmann, M.G.Itkis, A.P.Kabachenko, Yu.Ts.Oganessian, R.N.Sagaidak, S.Saro, A.V.Shutov, A.I.Svirikhin

In-beam separation and mass determination of superheavy nuclei. Part II

NUCLEAR REACTIONS 174Yb(48Ca, 5n), (48Ca, 6n), (48Ca, 4nα), E=216 MeV; 198Pt(48Ca, 4n), E=215 MeV; 206,208Pb(48Ca, 2n), E ≈ 218 MeV; 238U(48Ca, 3n), E=234 MeV; measured evaporation residue charge state distributions. Recoil-decay tagging, mass separator.

doi: 10.1016/j.nima.2003.08.118
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2004MO14      Nucl.Phys. A734, 101 (2004)

K.Morita, K.Morimoto, D.Kaji, S.Goto, H.Haba, E.Ideguchi, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, J.C.Peter, T.Suda, K.Sueki, I.Tanihata, F.Tokanai, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, Y.-L.Zhao, T.Zheng

Status of heavy element research using GARIS at RIKEN

NUCLEAR REACTIONS 208Pb(64Ni, n), E=310, 313, 316, 320 MeV; 209Bi(64Ni, n), E=320, 323, 326 MeV; measured σ.

RADIOACTIVITY 272Rg, 271Ds, 268Mt, 267Hs, 264Bh, 263Sg, 260Db, 259Rf, 256Lr, 255No, 252Md(α) [from 208Pb, 209Bi(64Ni, n) and subsequent decay]; measured Eα, T1/2.

doi: 10.1016/j.nuclphysa.2004.01.019
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2004MO26      J.Phys.Soc.Jpn. 73, 1738 (2004)

K.Morita, K.Morimoto, D.Kaji, H.Haba, E.Ideguchi, J.C.Peter, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, T.Suda, K.Sueki, I.Tanihata, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, Y.-L.Zhao, T.Zheng, S.Goto, F.Tokanai

Production and Decay Properties of 272Rg and its Daughter Nuclei

NUCLEAR REACTIONS 209Bi(64Ni, n), E=320, 323, 326 MeV; measured σ.

RADIOACTIVITY 272Rg, 268Mt, 264Bh, 260Db, 256Lr(α) [from 209Bi(64Ni, n) and subsequent decay]; measured Eα, T1/2.

doi: 10.1143/JPSJ.73.1738
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2004MO27      Nucl.Phys. A738, 129 (2004)

K.Morimoto, K.Morita, D.Kaji, S.Goto, H.Haba, E.Ideguchi, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, J.C.Peter, T.Suda, K.Sueki, I.Tanihata, F.Tokanai, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, T.-L.Zhao, T.Zheng

Status of super heavy element research using GARIS at RIKEN

NUCLEAR REACTIONS 208Pb, 209Bi(64Ni, n), E=310-326 MeV; measured excitation functions.

RADIOACTIVITY 271Ds, 267Hs, 263Sg, 259Rf, 255No(α) [from 208Pb(64Ni, n) and subsequent decay]; 272Rg, 268Mt, 264Bh, 260Db, 256Lr(α) [from 209Bi(64Ni, n) and subsequent decay]; measured Eα, T1/2.

doi: 10.1016/j.nuclphysa.2004.04.021
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2004MO40      Eur.Phys.J. A 21, 257 (2004)

K.Morita, K.Morimoto, D.Kaji, H.Haba, E.Ideguchi, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, T.Suda, K.Sueki, I.Tanihata, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, Y.-L.Zhao, T.Zheng

Production and decay of the isotope 271Ds (Z = 110)

NUCLEAR REACTIONS 208Pb(64Ni, n), E=308, 311, 314, 318 MeV; measured excitation function.

RADIOACTIVITY 271Ds, 267Hs, 263Sg, 259Rf, 255No(α) [from 208Pb(64Ni, n) and subsequent decay]; measured Eα, T1/2. 271Ds, 267Hs deduced isomeric states.

doi: 10.1140/epja/i2003-10205-1
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2004OG02      Eur.Phys.J. A 19, 3 (2004)

Yu.Ts.Oganessian, A.V.Yeremin, A.G.Popeko, O.N.Malyshev, A.V.Belozerov, G.V.Buklanov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, S.Hofmann, M.G.Itkis, A.P.Kabachenko, B.Kindler, G.Munzenberg, R.N.Sagaidak, S.Saro, H.-J.Schott, B.Streicher, A.V.Shutov, A.I.Svirikhin, G.K.Vostokin

Second experiment at VASSILISSA separator on the synthesis of the element 112

NUCLEAR REACTIONS 238U(48Ca, 3n), E ≈ 232 MeV; measured production σ. Mass separator, recoil-decay tagging.

RADIOACTIVITY 283Cn(SF) [from 238U(48Ca, 3n)]; measured T1/2.

doi: 10.1140/epja/i2003-10113-4
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2004OG06      Nucl.Phys. A734, 196 (2004)

Yu.Ts.Oganessian, A.V.Yeremin, A.G.Popeko, O.N.Malyshev, A.V.Belozerov, G.Buklanov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, S.Hofmann, M.G.Itkis, A.P.Kabachenko, B.Kindler, G.Munzenberg, R.N.Sagaidak, S.Saro, H.-J.Schott, B.Streicher, A.V.Shutov, A.I.Svirikhin, G.K.Vostokin

In-Flight Separation and Mass Selection of Heavy Evaporation Residues

NUCLEAR REACTIONS 238U(48Ca, 3n), E=234 MeV; measured production σ. Mass separator.

RADIOACTIVITY 283Cn(SF) [from 238U(48Ca, 3n)]; measured T1/2. Mass-separated source.

doi: 10.1016/j.nuclphysa.2004.01.033
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2004SH21      Nucl.Phys. A734, E5 (2004)

D.A.Shaughnessy, K.J.Moody, J.M.Kenneally, J.F.Wild, M.A.Stoyer, R.W.Lougheed, A.V.Yeremin, Yu.Ts.Oganessian

Development of a Plutonium Ceramic Target for the MASHA Separator

doi: 10.1016/j.nuclphysa.2004.03.006
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2004YA09      Nucl.Phys. A734, 204 (2004)

A.B.Yakushev, I.Zvara, Yu.Ts.Oganessian, A.V.Belozerov, S.N.Dmitriev, B.Eichler, S.Hubener, E.A.Sokol, A.Turler, A.V.Yeremin, G.V.Buklanov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, A.V.Gulyaev, V.Ya.Lebedev, O.N.Malyshev, A.G.Popeko, S.Soverna, Z.Szeglowski, S.N.Timokhin, S.P.Tretyakova, V.M.Vasko, M.G.Itkis

Chemical identification and properties of element 112

NUCLEAR REACTIONS U(48Ca, xn), E ≈ 230 MeV; measured fission fragment spectra following residual nucleus decay; deduced evidence for 283Cn. Chemical properties discussed.

doi: 10.1016/j.nuclphysa.2004.01.035
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2004YE03      Fiz.Elem.Chastits At.Yadra 35, 895 (2004); Physics of Part.and Nuclei 35, 480 (2004)

A.V.Yeremin, A.G.Popeko

Separation and Identification of the Products of Complete-Fusion Reactions: Further Development of Methods (Determination of Heavy-Nuclei Mass)


2003BE18      Eur.Phys.J. A 16, 447 (2003)

A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, T.P.Drobina, V.A.Gorshkov, A.P.Kabachenko, O.N.Malyshev, I.M.Merkin, Yu.Ts.Oganessian, A.G.Popeko, R.N.Sagaidak, A.I.Svirikhin, A.V.Yeremin, G.Berek, I.Brida, S.Saro

Spontaneous-fission decay properties and production cross-sections for the neutron-deficient nobelium isotopes formed in the 44, 48Ca + 204, 206, 208Pb reactions

NUCLEAR REACTIONS 208Pb(44Ca, 2n), (44Ca, 3n), (48Ca, 2n), (48Ca, 3n), (48Ca, 4n), E ≈ 200-240 MeV; 206Pb(48Ca, n), (48Ca, 2n), (48Ca, 3n), (48Ca, 4n), E ≈ 200-240 MeV; 204Pb(48Ca, 2n), (48Ca, 3n), E ≈ 200-240 MeV; measured σ. Mass separator, comparison with previous results and statistical model predictions.

RADIOACTIVITY 248,249,250,252No(SF), (α) [from 204,206,208Pb(44,46,48Ca, xn)]; measured fission T1/2, α-branching ratios. Comparison with model predictions.

doi: 10.1140/epja/i2002-10109-6
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2003CH04      Phys.Rev. C 67, 011603 (2003)

A.Yu.Chizhov, M.G.Itkis, I.M.Itkis, G.N.Kniajeva, E.M.Kozulin, N.A.Kondratiev, I.V.Pokrovsky, R.N.Sagaidak, V.M.Voskresensky, A.V.Yeremin, L.Corradi, A.Gadea, A.Latina, A.M.Stefanini, S.Szilner, M.Trotta, A.M.Vinodkumar, S.Beghini, G.Montagnoli, F.Scarlassara, A.Ya.Rusanov, F.Hanappe, O.Dorvaux, N.Rowley, L.Stuttge

Unexpected entrance-channel effect in the fission of 216Ra

NUCLEAR REACTIONS 204Pb(12C, X), E=56-90 MeV; 168Er(48Ca, X), E=180-208 MeV; measured fission fragment energy and mass distributions; deduced contributions from asymmetric fission, role of quasifission process.

doi: 10.1103/PhysRevC.67.011603
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2003PO08      Nucl.Instrum.Methods Phys.Res. A510, 371 (2003)

A.G.Popeko, O.N.Malyshev, A.V.Yeremin, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, M.G.Itkis, A.P.Kabachenko, Yu.Ts.Oganessian, R.N.Sagaidak, A.V.Shutov, A.I.Svirikhin

In-beam separation and mass determination of superheavy nuclei. Part I

NUCLEAR REACTIONS 164Dy(40Ar, 6n), E not given; 208Pb(40Ar, 2n), E not given; measured fragment yields. 204Pb(48Ca, X), 208Pb(44Ca, X), E not given; measured (recoil)(decay)-coin; deduced evidence for 249,250No.

RADIOACTIVITY 249,250No [from 204Pb(48Ca, X), 208Pb(44Ca, X)]; measured T1/2.

doi: 10.1016/S0168-9002(03)01823-0
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2003SA21      Phys.Rev. C 68, 014603 (2003)

R.N.Sagaidak, G.N.Kniajeva, I.M.Itkis, M.G.Itkis, N.A.Kondratiev, E.M.Kozulin, I.V.Pokrovsky, A.I.Svirikhin, V.M.Voskressensky, A.V.Yeremin, L.Corradi, A.Gadea, A.Latina, A.M.Stefanini, S.Szilner, M.Trotta, A.M.Vinodkumar, S.Beghini, G.Montagnoli, F.Scarlassara, D.Ackermann, F.Hanappe, N.Rowley, L.Stuttge

Fusion suppression in mass-asymmetric reactions leading to Ra compound nuclei

NUCLEAR REACTIONS 204,206,208Pb(12C, X), 168,170Er(48Ca, X), 197Au(19F, X), 186W(30Si, X), E* ≈ 20-90 MeV; measured fusion and fission excitation functions; deduced role of quasifission processes in fusion supression.

doi: 10.1103/PhysRevC.68.014603
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2003YA22      Radiochim.Acta 91, 433 (2003)

A.B.Yakushev, I.Zvara, Yu.Ts.Oganessian, A.V.Belozerov, S.N.Dmitriev, B.Eichler, S.Hubener, E.A.Sokol, A.Turler, A.V.Yeremin, G.V.Buklanov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, A.V.Gulyaev, V.Ya.Lebedev, O.N.Malyshev, A.G.Popeko, S.Soverna, Z.Szeglowski, S.N.Timokhin, S.P.Tretyakova, V.M.Vasko, M.G.Itkis

Chemical identification and properties of element 112

NUCLEAR REACTIONS 238U(48Ca, 3n), E ≈ 233 MeV; measured radiochemical yield; deduced chemical properties.

doi: 10.1524/ract.91.8.433.20010
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2003YE02      Yad.Fiz. 66, 1078 (2003); Phys.Atomic Nuclei 66, 1042 (2003)

A.V.Yeremin, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, A.P.Kabachenko, O.N.Malyshev, Yu.Ts.Oganessian, A.G.Popeko, R.N.Sagaidak, A.I.Svirikhin, S.Hofmann, G.Berek, I.Brida, S.Saro

The Upgrade of the Kinematic Separator VASSILISSA-Experimental Results and Plans

NUCLEAR REACTIONS 208Pb(16O, xn), 197Au, 208Pb, 232Th(20Ne, xn), 190Os, 194,196,198Pt, 197Au, 205Tl, 208Pb, 209Bi, 232Th, 236,238U(22Ne, xn), 181Ta, 197Au, 208Pb(24Mg, xn), 181Ta, 197Au, 207,208Pb, 232Th(26Mg, xn), 175Lu, 197Au, 232Th, 238U(27Al, xn), 169Tm, 181Ta, 232Th(31P, xn), 175Lu(35Cl, xn), 159Tb, 165Ho, 182W(40Ar, xn), 151,153Eu, 159Tb(40Ca, xn), 208Pb(44Ca, xn), 174,176Yb, 204,206,208Pb, 232Th, 239U, 242Pu(48Ca, xn), E*=20-140 MeV; measured excitation functions; deduced maximum σ.

RADIOACTIVITY 249,250No(α), (SF); measured T1/2, α-branching ratio. 248No(α); measured T1/2 lower limit.

doi: 10.1134/1.1586416
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2002HE29      Eur.Phys.J. A 15, 335 (2002)

F.P.Hessberger, S.Hofmann, I.Kojouharov, D.Ackermann, S.Antalic, P.Cagarda, B.Kindler, B.Lommel, R.Mann, A.G.Popeko, S.Saro, J.Uusitalo, A.V.Yeremin

Radioactive decay of 217Pa

RADIOACTIVITY 217Pa, 217mPa, 217Th(α) [from Ta(40Ar, xnyp)]; measured Eα, Iα, Eγ, Iγ, αγ-coin, T1/2. 217Pa deduced ground and isomeric states J, π. 213Ac deduced levels, J, π. Decay systematics in neighboring nuclides discussed.

doi: 10.1140/epja/i2002-10038-4
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2002HO11      Eur.Phys.J. A 14, 147 (2002)

S.Hofmann, F.P.Hessberger, D.Ackermann, G.Munzenberg, S.Antalic, P.Cagarda, B.Kindler, J.Kojouharova, M.Leino, B.Lommel, R.Mann, A.G.Popeko, S.Reshitko, S.Saro, J.Uusitalo, A.V.Yeremin

New Results on Elements 111 and 112

RADIOACTIVITY 277Cn, 273Ds, 269Hs, 265Sg, 257No, 272Rg, 268Mt, 264Bh, 260Db, 256Lr(α); 261Rf(α), (SF); measured Eα, T1/2, branching ratios. Comparison with earlier data and with Shell model results.

NUCLEAR REACTIONS 209Bi, 207Pb(64Ni, n), E=316.1-320 MeV; 208Pb(70Zn, n), E=343.8-346.1 MeV; measured Eα, T1/2, αα-correlations, σ following use of SHIP separator and implantation in Si detector. 238U(70Zn, X), E=370.3 MeV; measured upper limit for evaporation residue σ.

doi: 10.1140/epja/i2001-10119-x
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2002OG07      Part. and Nucl., Lett. 110, 5 (2002)

Yu.Ts.Oganessian, A.V.Yeremin, A.V.Belozerov, G.Berek, I.Brida, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, A.P.Kabachenko, S.P.Korotkov, O.N.Malyshev, A.G.Popeko, L.A.Rubinskaya, R.N.Sagaidak, E.M.Smirnova, A.I.Svirikhin

Kinematic Separation and Mass Analysis of Heavy Recoiling Nuclei

NUCLEAR REACTIONS 238U, 232Th, 242Pu(48Ca, 3n), E ≈ 230 MeV; measured σ. 164Dy(40Ar, 7n), E=190-210 MeV; measured evaporation residue yields, charge states. Mass separator.


2001HE35      Eur.Phys.J. A 12, 57 (2001)

F.P.Hessberger, S.Hofmann, D.Ackermann, V.Ninov, M.Leino, G.Munzenberg, S.Saro, A.Lavrentev, A.G.Popeko, A.V.Yeremin, Ch.Stodel

Decay Properties of Neutron-Deficient Isotopes 256, 257Db, 255Rf, 252, 253Lr

NUCLEAR REACTIONS 208Pb, 209Bi(50Ti, n), (50Ti, 2n), (50Ti, 3n), E=4.59-5.08 MeV/nucleon; measured delayed (recoil)α-, αα-coin following residual nucleus decay; deduced excitation functions.

RADIOACTIVITY 251No, 253,253mLr, 255Rf, 257,257mDb(α), (SF); 252Lr(α); 256Db(α), (EC) [from 208Pb, 209Bi(50Ti, xn) and subsequent decay]; measured Eα, T1/2, relative intensities, branching ratios, hindrance factors.

doi: 10.1007/s100500170039
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2001HO06      Eur.Phys.J. A 10, 5 (2001)

S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, P.Cagarda, S.Cwiok, B.Kindler, J.Kojouharova, B.Lommel, R.Mann, G.Munzenberg, A.G.Popeko, S.Saro, H.J.Schott, A.V.Yeremin

The New Isotope 270110 and Its Decay Products 266Hs and 262Sg

NUCLEAR REACTIONS 207Pb(64Ni, n), E=317 MeV; measured Eα, αα-, (recoil)α-coin following residual nucleus decay; deduced production σ, evidence for 270Ds, 266Hs, 262Sg. Mass separator.

RADIOACTIVITY 270Ds, 266Hs, 262Sg(α) [from 207Pb(64Ni, n)]; measured Eα, T1/2.

doi: 10.1007/s100500170137
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0896.


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