NSR Query Results
Output year order : Descending NSR database version of April 24, 2024. Search: Author = Y.T.Oganessian Found 372 matches. Showing 1 to 100. [Next]2024KO05 Phys.Rev. C 109, 034616 (2024) E.M.Kozulin, G.N.Knyazheva, A.V.Karpov, V.V.Saiko, A.A.Bogachev, I.M.Itkis, K.V.Novikov, I.V.Vorobiev, I.V.Pchelintsev, E.O.Savelieva, R.S.Tikhomirov, M.G.Itkis, Yu.Ts.Oganessian Detailed study of multinucleon transfer features in the 136Xe + 238U reaction
doi: 10.1103/PhysRevC.109.034616
2023BR07 Nucl.Phys. A1039, 122738 (2023) N.T.Brewer, E.H.Wang, W.A.Yzaguirre, J.H.Hamilton, K.Nomura, A.V.Ramayya, S.H.Liu, J.K.Hwang, B.M.Musangu, J.M.Eldridge, C.J.Zachary, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, C.Goodin, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian Octupole deformation in 143, 145, 146Ba RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ. 143,145,146Ba; deduced γ-ray energies and relative intensities, partial level scheme, angular correlations, octupole bands, J, π, B(E1)/B(E2). Comparison with IBM and IBFM calculations.
doi: 10.1016/j.nuclphysa.2023.122738
2023IB01 Bull.Rus.Acad.Sci.Phys. 87, 1118 (2023) D.Ibadullayev, V.K.Utyonkov, Yu.Ts.Oganessian, F.Sh.Abdullin, S.N.Dmitriev, M.G.Itkis, A.V.Karpov, N.D.Kovrizhnykh, D.A.Kuznetsov, O.V.Petrushkin, A.V.Podshibiakin, A.N.Polyakov, A.G.Popeko, R.N.Sagaidak, L.Schlattauer, V.D.Shubin, M.V.Shumeiko, D.I.Solovyev, Yu.S.Tsyganov, A.A.Voinov, V.G.Subbotin, A.Yu.Bodrov, A.V.Sabelnikov, Sh.G.Giniyatova, K.A.Kuterbekov Study of the 242Pu + 48Ca Reaction at Super Heavy Element Factory RADIOACTIVITY 286,287Fl, 283Cn, 279Ds, 261Rf(α) [from 242Pu(48Ca, X), E=242.5, 247.5 MeV]; measured reaction products, Eα, Iα; deduced α-particle energies, T1/2, σ, 2+ rotational level in 282Cn. A new gas-filled separator DGFRS-2 online to the DC-280 cyclotron of the Superheavy Element Factory at the Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research.
doi: 10.3103/S1062873823702945
2023KO22 Bull.Rus.Acad.Sci.Phys. 87, 1098 (2023) N.D.Kovrizhnykh, Yu.Ts.Oganessian, V.K.Utyonkov, F.Sh.Abdullin, S.N.Dmitriev, A.A.Dzhioev, D.Ibadullayev, M.G.Itkis, A.V.Karpov, D.A.Kuznetsov, O.V.Petrushkin, A.V.Podshibiakin, A.N.Polyakov, A.G.Popeko, I.S.Rogov, R.N.Sagaidak, L.Schlattauer, V.D.Shubin, M.V.Shumeiko, D.I.Solovyev, Yu.S.Tsyganov, A.A.Voinov, V.G.Subbotin, A.Yu.Bodrov, A.V.Sabelnikov, A.V.Khalkin First Experiment at the Super Heavy Element Factory: New Data from the 243Am + 48Ca Reaction RADIOACTIVITY 286,287,288,289Mc(α), 268Db(SF), (α), 264Lr, 279Rg(SF) [from 243Am(48Ca, X), E=239-259 MeV]; measured decay products, Eα, Iα; deduced α-particle energies, branches, T1/2, σ. The new separator DGFRS-2 and cyclotron DC280 of the SHE Factory at FLNR JINR.
doi: 10.3103/S106287382370291X
2023OG03 Phys.Rev. C 108, 024611 (2023) Yu.Ts.Oganessian, V.K.Utyonkov, M.V.Shumeiko, F.Sh.Abdullin, S.N.Dmitriev, D.Ibadullayev, M.G.Itkis, N.D.Kovrizhnykh, D.A.Kuznetsov, O.V.Petrushkin, A.V.Podshibiakin, A.N.Polyakov, A.G.Popeko, I.S.Rogov, R.N.Sagaidak, L.Schlattauer, V.D.Shubin, D.I.Solovyev, Yu.S.Tsyganov, A.A.Voinov, V.G.Subbotin, N.S.Bublikova, M.G.Voronyuk, A.V.Sabelnikov, A.Yu.Bodrov, Z.G.Gan, Z.Y.Zhang, M.H.Huang, H.B.Yang New isotope 276Ds and its decay products 272Hs and 268Sg from the 232Th+48Ca reaction NUCLEAR REACTIONS 232Th(48Ca, 3n)277Ds, 232Th(48Ca, 4n)276Ds, E=231, 1, 237.8, 250.6 MeV; measured reaction products, Eα, Iα, fission fragments; deduced production σ(E). Systematics of production cross-sections with 48Ca beam on 242,244Pu, 238U, 232Th, 226Ra, 245,248Cm, 249Bk targets. Gas filled separator DGFRS-2 at the new cyclotron DC280 (SHE Factory, JINR). RADIOACTIVITY 268Sg(SF)[from 232Th(48Ca, X), E=231, 1, 237.8, 250.6 MeV]; 272Hs(α)[from 232Th(48Ca, X), E=231, 1, 237.8, 250.6 MeV]; 276Ds(α), (SF)[from 232Th(48Ca, X), E=231, 1, 237.8, 250.6 MeV]; measured Eα, Iα, fission fragments; deduced T1/2, α-decay and SF decay branching and partial T1/2 for 276Ds, Q value for α-decay. Systematics of partial T1/2 for Hs, Ds, Cn, Fl, Lv and Og isotopes.
doi: 10.1103/PhysRevC.108.024611
2022CH41 Bull.Rus.Acad.Sci.Phys. 86, 883 (2022) E.V.Chernysheva, A.M.Rodin, V.Yu.Vedeneev, A.V.Gulyaev, A.V.Gulyaeva, M.Holik, S.N.Dmitriev, D.Kamas, J.Kliman, A.B.Komarov, L.Krupa, P.Kohout, A.Kohoutova, A.S.Novoselov, Yu.Ts.Oganessian, A.Opichal, J.Pechousek, A.V.Podshibyakin, V.S.Salamatin, S.V.Stepantsov S.A.Yukhimchuk Cross Sections of the Production of Mercury and Radon Isotopes in Complete Fusion Reactions with 36, 40Ar and 40, 48Ca Projectiles NUCLEAR REACTIONS 144Sm(40Ar, Xn)184Hg/181Hg/182Hg/181Hg/180Hg/179Hg/178Hg, E=154-232 MeV; 148Sm(36Ar, Xn)184Hg/183Hg/182Hg/181Hg/180Hg/179Hg, E=144-233 MeV; 144Nd(40Ca, Xn)184Hg/183Hg/182Hg/181Hg/180Hg/179Hg, E=145-216 MeV; 142Nd(48Ca, Xn)190Hg/185Hg/184Hg/183Hg, E=202-264 MeV; 166Er(40Ar, Xn)206Rn/203Rn/202Rn/201Rn, E=156-202 MeV; measured reaction products, Eα, Iα; deduced σ. Comparison with theoretical calculations. Flerov Laboratory's U400M cyclotron.
doi: 10.3103/S1062873822080044
2022KA12 Phys.Rev. C 105, 044612 (2022) D.Kamas, A.Opichal, E.V.Chernysheva, S.N.Dmitriev, A.V.Gulyaev, A.V.Gulyaeva, M.Holik, J.Kliman, A.B.Komarov, L.Krupa, A.S.Novoselov, Yu.Ts.Oganessian, A.V.Podshibyakin, A.M.Rodin, V.S.Salamatin, S.V.Stepantsov, V.Yu.Vedeneev, S.A.Yukhimchuk Evaporation-residue cross sections in complete fusion reactions leading to Hg and Rn isotopes NUCLEAR REACTIONS 144Sm(40Ar, 2n), (40Ar, 3n), (40Ar, 4n), (40Ar, 5n), (40Ar, 6n), E=299 MeV; 148Sm(36Ar, 2n), (36Ar, 3n), (36Ar, 4n), (36Ar, 5n), E=324 MeV; 144Nd(40Ca, 2n), (40Ca, 3n), (40Ca, 4n), (40Ca, 5n), E=268 MeV; 142Nd(48Ca, 5n), (48Ca, 6n), (48Ca, 7n), E=327 MeV; 166Er(40Ar, 3n), (40Ar, 4n), (40Ar, 5n), (40Ar, 2np), (40Ar, 3np), (40Ar, 4np), (40Ar, 5np), E=300 MeV; measured reaction products, Eα, Iα; deduced complete fusion and xn-evaporation σ(E). Comparison to coupled-channel calculations. Measurement of α from the decay of reaction products implanted on Al foils.with Si-detectors. Beam from U400M cyclotron of the FLNR, JINR (Dubna).
doi: 10.1103/PhysRevC.105.044612
2022OG03 Phys.Part. and Nucl.Lett. 19, 108 (2022) Yu.Ts.Oganessian, N.Yu.Kazarinov, G.G.Gulbekian Solenoid Separator of Superheavy Elements: A New Design for the GASSOL Separator
doi: 10.1134/S1547477122020078
2022OG05 Phys.Rev. C 106, 024612 (2022) Yu.Ts.Oganessian, V.K.Utyonkov, D.Ibadullayev, F.Sh.Abdullin, S.N.Dmitriev, M.G.Itkis, A.V.Karpov, N.D.Kovrizhnykh, D.A.Kuznetsov, O.V.Petrushkin, A.V.Podshibiakin, A.N.Polyakov, A.G.Popeko, R.N.Sagaidak, L.Schlattauer, V.D.Shubin, M.V.Shumeiko, D.I.Solovyev, Yu.S.Tsyganov, A.A.Voinov, V.G.Subbotin, A.Yu.Bodrov, A.V.Sabelnikov, A.Lindner, K.P.Rykaczewski, T.T.King, J.B.Roberto, N.T.Brewer, R.K.Grzywacz, Z.G.Gan, Z.Y.Zhang, M.H.Huang, H.B.Yang Investigation of 48Ca-induced reactions with 242Pu and 238U targets at the JINR Superheavy Element Factory RADIOACTIVITY 286,287Fl, 283Cn(α), (SF)[from 242Pu(48Ca, 3n), (48Ca, 4n)286Fl/287Fl, E=242.5, 247.5 MeV, and 238U(48Ca, 3n)283Cn, E=231.1, 234.4 MeV followed by separation of fragments using gas-filled separator DGFRS-2 separator at the SHE Factory of JINR-Dubna]; measured evaporation residues (ERs), Eα, fission fragments (SF), (ER)α-coin, αα-coin, (ER)(SF)-coin using double-sided silicon strip detectors (DSSDs), single-sided silicon-strip detectors (SSSDs) and multiwire proportional chambers (MWPCs); deduced T1/2 for α and SF decays, branching ratios, Q(α), production cross sections for superheavy nuclei. 279Ds, 275Hs, 271Sg(α), (SF); 282Cn, 267Rf(SF)[from 286,287Fl, 283Cn decay chains]; measured Eα, ESF deduced T1/2 for α and SF decays, average decay properties. 287Fl; discussed possible existence of isomeric states from consecutive α decays. 282Cn; discussed possible population of 2+ state. Comparison with previously available experimental results.
doi: 10.1103/PhysRevC.106.024612
2022OG07 Phys.Rev. C 106, L031301 (2022) Yu.Ts.Oganessian, V.K.Utyonkov, N.D.Kovrizhnykh, F.Sh.Abdullin, S.N.Dmitriev, D.Ibadullayev, M.G.Itkis, D.A.Kuznetsov, O.V.Petrushkin, A.V.Podshibiakin, A.N.Polyakov, A.G.Popeko, R.N.Sagaidak, L.Schlattauer, I.V.Shirokovski, V.D.Shubin, M.V.Shumeiko, D.I.Solovyev, Yu.S.Tsyganov, A.A.Voinov, V.G.Subbotin, A.Yu.Bodrov, A.V.Sabelnikov, A.V.Khalkin, V.B.Zlokazov, K.P.Rykaczewski, T.T.King, J.B.Roberto, N.T.Brewer, R.K.Grzywacz, Z.G.Gan, Z.Y.Zhang, M.H.Huang, H.B.Yang First experiment at the Super Heavy Element Factory: High cross section of 288Mc in the 243Am + 48Ca reaction and identification of the new isotope 264Lr NUCLEAR REACTIONS 243Am(48Ca, 2n)289Mc, (48Ca, 3n)288Mc, (48Ca, 4n), E=239.1, 240.9, 243.9 MeV; measured evaporation residues (ER), α, and fission fragments (SF), (ER)α-coin, αα-coin, α(SF)-coin, ER(SF)-coin, production σ(E) for superheavy nuclei using gas-filled separator DGFRS-2, two double-sided strip detectors (DSSD), two multiwire proportional chambers (MWPC) at the DC280 cyclotron facility of the Super Heavy Element Factory of JINR-Dubna. RADIOACTIVITY 288,289Mc, 284,285Nh, 280,281Rg, 276Mt, 272Bh, 268Db(α); 281Rg, 277Mt, 268Db, 264Lr(SF)[from 243Am(48Ca, xn)]; measured Eα, ESF, (ER)α-coin, αα-coin, α(SF)-coin, ER(SF)-coin, T1/2. 268Db; deduced α/SF branching ratio. 264Lr; deduced new isotope, T1/2, average decay properties. 288Mc, 284Nh(EC), (β+); discussed upper limit for decay mode. History of 55 correlated events observed for 288Mc and six for 289Mc is listed by authors in the Supplemental material of the paper.
doi: 10.1103/PhysRevC.106.L031301
2022OG08 Phys.Rev. C 106, 064306 (2022) Yu.Ts.Oganessian, V.K.Utyonkov, N.D.Kovrizhnykh, F.Sh.Abdullin, S.N.Dmitriev, A.A.Dzhioev, D.Ibadullayev, M.G.Itkis, A.V.Karpov, D.A.Kuznetsov, O.V.Petrushkin, A.V.Podshibiakin, A.N.Polyakov, A.G.Popeko, I.S.Rogov, R.N.Sagaidak, L.Schlattauer, V.D.Shubin, M.V.Shumeiko, D.I.Solovyev, Yu.S.Tsyganov, A.A.Voinov, V.G.Subbotin, A.Yu.Bodrov, A.V.Sabelnikov, A.V.Khalkin, K.P.Rykaczewski, T.T.King, J.B.Roberto, N.T.Brewer, R.K.Grzywacz, Z.G.Gan, Z.Y.Zhang, M.H.Huang, H.B.Yang New isotope 286Mc produced in the 243Am + 48Ca reaction NUCLEAR REACTIONS 243Am(48Ca, X)288Mc/289Mc, 243Am(48Ca, 2n), (48Ca, 3n), (48Ca, 4n), (48Ca, 5n), E=242.2, 250.8, 259.1 MeV; measured reaction products, evaporation residues (ER), Eα, Iα, fission fragments, (SF), (SF)α-coin, (ER)α-coin, αα-coin; deduced σ(E) for superheavy nuclei production. Gas-filled separator DGFRS-2 at the DC280 cyclotron (SHE Factory at JINR). Measurements with double-sided silicon strip detectors (DSSDs), single-sided silicon-strip detectors (SSSDs) and multiwire proportional chambers (MWPCs). RADIOACTIVITY 286,287,288Mc, 289Mc, 282Nh, 283Nh, 284Nh, 285Nh, 278,280Rg, 274,275,276Mt, 270,271,272Bh, 268Db(α); 279,281Rg, 266,267,268Db, 264Lr(SF) [from 243Am(48Ca, xn), E=E=242.2, 250.8, 259.1 MeV]; measured Eα, ESF; deduced T1/2. 268Db; deduced α/SF branching ratio. 286Mc; deduced new isotope. Comparison of deduced half-lives with theoretical predictions.
doi: 10.1103/PhysRevC.106.064306
2021MU09 Phys.Rev. C 104, 064318 (2021) B.M.Musangu, E.H.Wang, J.H.Hamilton, S.Jehangir, G.H.Bhat, J.A.Sheikh, S.Frauendorf, C.J.Zachary, J.M.Eldridge, A.V.Ramayya, A.C.Dai, F.R.Xu, J.O.Rasmussen, Y.X.Luo, G.M.Ter-Akopian, Yu.Ts.Oganessian, S.J.Zhu Chiral vibrations and collective bands in 104, 106Mo RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, multi-fold γγ-coin, γγ(θ) using Gammasphere array of 101 Ge detectors at Lawrence Berkeley National Laboratory (LBNL). 104,106Mo; deduced high-spin levels, J, π, rotational bands, chiral vibrational doublet bands, multipolarities, multipole mixing ratios. Comparison with Triaxial projected shell model (TPSM) calculations.
doi: 10.1103/PhysRevC.104.064318
2021WA19 Phys.Rev. C 103, 034301 (2021) E.H.Wang, J.H.Hamilton, A.V.Ramayya, C.J.Zachary, A.Lemasson, A.Navin, M.Rejmund, S.Bhattacharyya, Q.B.Chen, S.Q.Zhang, J.M.Eldridge, J.K.Hwang, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian, M.Caamano, E.Clement, O.Delaune, F.Farget, G.de France, B.Jacquot Pseudospin-doublet bands and Gallagher Moszkowski doublet bands in 100Y RADIOACTIVITY 252Cf(SF); measured Eγ, γγγ-, and γγγγ-coin using Gammasphere array at LBNL. 100Y; deduced levels, J, π, bands, configurations. NUCLEAR REACTIONS 9Be(238U, F)100Y, E=6.2 MeV/nucleon; measured Eγ, γγ-coin, A- and Z-gated γ spectra using VAMOS++ spectrometer and EXOGAM array at GANIL facility. 100Y; deduced high-spin levels, J, π, rotational bands, B(M1)/B(E2), configurations, moments of inertia plots. Comparison with particle-rotor model calculations. NUCLEAR STRUCTURE 100Y; calculated potential-energy surface in the (β2, γ) plane, levels, J, π, bands, in-band B(M1), B(E2), B(M1)/B(E2), rms components of the angular momentum versus spin. Constrained triaxial covariant density-functional theory (CDFT) and quantal particle rotor model (PRM) calculations. Comparison with experimental data.
doi: 10.1103/PhysRevC.103.034301
2021WA42 Nucl.Phys. A1015, 122281 (2021) E.H.Wang, N.T.Brewer, J.H.Hamilton, A.V.Ramayya, W.A.Yzaguirre, J.K.Hwang, S.H.Liu, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian Coexistence of octupole deformation and beta and gamma vibrational bands in 148Ce RADIOACTIVITY 252Cf(SF); measured reaction products, Eγ, Iγ. 148Ce; deduced γ-ray energies and intensities, J, π, high-spin states, vibrartional bands, mixing ratios.
doi: 10.1016/j.nuclphysa.2021.122281
2020EL07 Phys.Rev. C 102, 044323 (2020) J.M.Eldridge, E.H.Wang, C.J.Zachary, J.H.Hamilton, B.M.Musangu, A.V.Ramayya, G.M.Ter-Akopian, Yu.Ts.Oganessian, Y.X.Luo, J.O.Rasmussen, S.J.Zhu Structure of 155Nd and 163Gd from 252Cf spontaneous fission RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, three- and four-fold γγ-coin using the Gammasphere array with 101 Ge detectors, located at LBNL at the time. 155Nd, 163Gd; deduced high-spin levels, J, π, bands, Nilsson configurations. Comparison with theoretical calculations. Systematics of level energies and bands in 153Nd, 155Nd and 155Sm.
doi: 10.1103/PhysRevC.102.044323
2020MU04 Phys.Rev. C 101, 034610 (2020) B.M.Musangu, A.H.Thibeault, T.H.Richards, E.H.Wang, J.H.Hamilton, C.J.Zachary, J.M.Eldridge, A.V.Ramayya, Y.X.Luo, J.O.Rasmussen, G.M.Ter-Akopian, Yu.Ts.Oganessian, S.J.Zhu Anomalous neutron yields confirmed for Ba-Mo and newly observed for Ce-Zr from spontaneous fission of 252Cf RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, three- and four-fold γγ-coin using the Gammasphere array at LBNL; deduced fission yield matrices and neutron multiplicity yields of Ba(A=138-148)-Mo(A=100-110), Pd(A=110-118)-Te(A=130-138), Nd(A=148-156)-Sr(A=91-100), and Ce(A=144-152)-Zr(A=96-104) pairs of isotopes using up-to-date level schemes of relevant nuclei, and cross-checking of energies of the γ-transitions in multiple isotopes, possible hyperdeformation and octupole deformation at scission giving rise to high neutron multiplicities.
doi: 10.1103/PhysRevC.101.034610
2020TE02 Phys.Atomic Nuclei 83, 497 (2020) G.M.Ter-Akopian, Yu.Ts.Oganessian, A.A.Bezbakh, A.S.Fomichev, M.S.Golovkov, A.V.Gorshkov, S.A.Krupko, E.Yu.Nikolskii, S.I.Sidorchuk, S.V.Stepantsov, R.Wolski Radioactive-Ion Beams for the Fission Study of Heavy Neutron-Rich Nuclei NUCLEAR REACTIONS 238U, 244Pu, 248Cm, 249Bk, 249,250,251Cf, 254Es(9Li, X), (10Be, X), (11B, X), (13C, X), (14C, X), (16C, X), (15N, X), (19N, X), (18O, X), (20O, X), (22O, X), (21F, X), (22F, X), (22Ne, X), (24Ne, X), (26Ne, X), (26Mg, X), (30Mg, X), (36S, X), E=4-6 MeV/nucleon; analyzed available data; deduced opportunities with quasi-elastic, multi-nucleon transfer reactions induced by the radioactive-ion beams in the neighborhood of the recently discovered island of super-heavy elements and to the acquirement of new data specifying significant fission characteristics of the actinide nuclei appearing in the r-process nucleosythesis.
doi: 10.1134/S1063778820040195
2020VO07 Bull.Rus.Acad.Sci.Phys. 84, 351 (2020) A.A.Voinov, V.K.Utyonkov, Yu.Ts.Oganessian, F.Sh.Abdullin, A.N.Polyakov, Yu.S.Tsyganov, I.V.Shirokovsky, R.N.Sagaidak, V.G.Subbotin, S.N.Dmitriev, M.G.Itkis, M.V.Shumeiko, N.D.Kovrizhnykh, A.V.Sabelnikov, G.K.Vostokin Synthesizing and Studying Superheavy Nuclei 294Ts and 294Og
doi: 10.3103/S1062873820040358
2019CA15 Phys.Rev. C 99, 064606 (2019) N.Carjan, F.A.Ivanyuk, Yu.Ts.Oganessian Fission of superheavy nuclei: Fragment mass distributions and their dependence on excitation energy RADIOACTIVITY 252,254,256,258,260,262,264,266,268,270No, 264,266,268,270,272,274,276,278Hs, 276,278,280,282,284,286Cn, 290,291,292,293Lv, 268,270,272,274,276,278,280,282,284,288,292Ds, 254,256,258,260,262,264,266,268,270Rf, 272,274,276,280,284,285,286,287,288,292,296,298,300,304Fl, 276,280,284,288,292,294,296,300,304Og(SF); calculated average mass of light and heavy fission fragments, fission fragment mass distribution, average total kinetic energy of fission fragments, second moments of the total kinetic energy distribution of fission using a prescission point model.
doi: 10.1103/PhysRevC.99.064606
2018BH07 Phys.Rev. C 98, 044316 (2018) S.Bhattacharyya, E.H.Wang, A.Navin, M.Rejmund, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, A.Lemasson, A.V.Afanasjev, S.Bhattacharya, J.Ranger, M.Caamano, E.Clement, O.Delaune, F.Farget, G.de France, B.Jacquot, Y.X.Luo, Yu.Ts.Oganessian, J.O.Rasmussen, G.M.Ter-Akopian, S.J.Zhu Deformed band structures in neutron-rich 152-158Pm isotopes NUCLEAR REACTIONS 9Be(238U, F), E=6.2 MeV/nucleon; measured fission fragments, time of flight, Eγ, Iγ, γγ- and (fragment)γ-coin using the VAMOS++ magnetic spectrometer for fragment separation and the EXOGAM segmented Clover array for γ detection at GANIL. 152,153,154,155,156,157,158Pm; deduced high-spin levels, J, π, bands, alignment and staggering plots. 151Pm; measured γ spectrum in coincidence with fission fragments. Systematics of band structures in 151,153,155,157Pm. Comparison with previous experimental values and cranked Hartree-Bogoliubov calculations. RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γ(θ), high-fold γγ-coin using Gammasphere array with 101 HPGe detectors at LBNL. 152,153,154,155,156,157,158Pm; deduced high-spin levels, bands.
doi: 10.1103/PhysRevC.98.044316
2018BR13 Phys.Rev. C 98, 024317 (2018) N.T.Brewer, V.K.Utyonkov, K.P.Rykaczewski, Yu.Ts.Oganessian, F.Sh.Abdullin, R.A.Boll, D.J.Dean, S.N.Dmitriev, J.G.Ezold, L.K.Felker, R.K.Grzywacz, M.G.Itkis, N.D.Kovrizhnykh, D.C.McInturff, K.Miernik, G.D.Owen, A.N.Polyakov, A.G.Popeko, J.B.Roberto, A.V.Sabelnikov, R.N.Sagaidak, I.V.Shirokovsky, M.V.Shumeiko, N.J.Sims, E.H.Smith, V.G.Subbotin, A.M.Sukhov, A.I.Svirikhin, Yu.S.Tsyganov, S.M.Van Cleve, A.A.Voinov, G.K.Vostokin, C.S.White, J.H.Hamilton, M.A.Stoyer Search for the heaviest atomic nuclei among the products from reactions of mixed-Cf with a 48Ca beam NUCLEAR REACTIONS 249,250,251,252Cf(48Ca, 2n), (48Ca, 3n), (48Ca, 4n), (48Ca, 5n), E*=33-50 MeV; calculated evaporation residual cross sections using from five models for analyzing reactions. 249,250,251Cf(48Ca, xn)294Og, E=252, 258 MeV; Yb(48Ca, xn)216Th/217Th/218Th/219Th/220Th, E=252, 258 MeV; 206Pb(48Ca, 2n)252No, E=252, 258 MeV; measured Eα, Iα and (implants)α correlations, using Dubna Gas Filled Recoil Separator (DGFRS) for recoil separation and double-sided silicon strip detectors for α detection at JINR. Reviewed earlier experiments from 2002 to 2012 for the detection of 294Og nuclide. 295,296Og; predicted production σ, half-life and Eα for the decay of 296Og; discussed future prospects for production of these two nuclides. RADIOACTIVITY 294Og, 290Lv, 218,219Th, 214,215Ra(α); 286Fl(SF); measured Eα, Q(α) and T1/2. 294,296Og(α); comparison of experimental values for Q(α) and T1/2 for 294Og with theoretical predictions for 294Og and 296Og.
doi: 10.1103/PhysRevC.98.024317
2018EL01 Eur.Phys.J. A 54, 15 (2018) J.M.Eldridge, B.Fenker, J.H.Hamilton, C.Goodin, C.J.Zachary, E.Wang, A.V.Ramayya, A.V.Daniel, G.M.Ter-Akopian, Yu.Ts.Oganessian, Y.X.Luo, J.O.Rasmussen, S.J.Zhu E2/M1 mixing ratios in transitions from the gamma vibrational bands to the ground state rotational bands of 102, 104, 106, 108Mo, 108, 110, 112Ru, and 112, 114, 116Pd RADIOACTIVITY 252Cf(SF); measured fission fragments Eγ, Iγ(θ), γγ-coin using 101 HPGe GAMMASPHERE detectors; deduced 2+ excited states attenuation factors, g-factors. 102,104,106,108Mo;108,110,112Ru, 114,116Pd; deduced rotational bands, vibrational bands of selected fission fragments, B(E2), B(M1) using γγγ and higher coin using angular correlations, g-factors of 2+ states of the gs rotational band; calculated γ vibrational bands, gs rotational bands of selected, B(E2), B(M1), mixing ratios E2/M1.
doi: 10.1140/epja/i2018-12426-5
2018UT02 Phys.Rev. C 97, 014320 (2018) V.K.Utyonkov, N.T.Brewer, Yu.Ts.Oganessian, K.P.Rykaczewski, F.Sh.Abdullin, S.N.Dmitriev, R.K.Grzywacz, M.G.Itkis, K.Miernik, A.N.Polyakov, J.B.Roberto, R.N.Sagaidak, I.V.Shirokovsky, M.V.Shumeiko, Yu.S.Tsyganov, A.A.Voinov, V.G.Subbotin, A.M.Sukhov, A.V.Karpov, A.G.Popeko, A.V.Sabelnikov, A.I.Svirikhin, G.K.Vostokin, J.H.Hamilton, N.D.Kovrizhnykh, L.Schlattauer, M.A.Stoyer, Z.Gan, W.X.Huang, L.Ma Neutron-deficient superheavy nuclei obtained in the 240Pu + 48Ca reaction NUCLEAR REACTIONS 240Pu(48Ca, 3n), (48Ca, 4n), E=250 MeV; measured evaporation residues (ER), α, and SF fragments, ER-α, α-α, and ER-SF correlated events, reaction σ using Dubna gas-filled recoil separator (DGFRS) at the U-400 cyclotron facility of Flerov Laboratory of Nuclear Reactions(FLNR), JINR; deduced three ER-α-SF correlated decay chains decaying from 285Fl to 265Rf, one ER-α-SF decay chain, and 25 short ER-SF decay chains, super-heavy nuclides (SHN). Systematics of production σ for Cf, Cm and Am isotopes in 248Cm, 249Cf(136Xe, xn), 248Cm(86Kr, xn), and 240Pu, 243Am, 248Cm(48Ca, xn) reactions. 240,244mAm, 242mAm, 237,239,241mPu, 238,241,243,244,245,246mAm, 287Fl, 282,283Cn, 279Ds; possible production of mostly the SF activities. RADIOACTIVITY 285Fl, 281Cn, 277Ds, 273Hs, 269Sg(α); 265Rf(SF)[from 240Pu(48Ca, 3n), E=250 MeV]; measured Eα, ESF, T1/2 from three correlated decay chains; deduced average decay properties, possible indication of decays through different energy levels. 284Fl(SF)[from 240Pu(48Ca, 4n), E=250 MeV]; deduced possible three ER-SF correlated decay chains and estimated half-life.
doi: 10.1103/PhysRevC.97.014320
2018WA19 Int.J.Mod.Phys. E27, 1850051 (2018) E.H.Wang, J.H.Hamilton, A.V.Ramayya, R.Han, C.J.Zachary, J.M.Eldridge, J.K.Hwang, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian New levels in spherical 96Y RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ. 96Y; deduced γ-ray energies, J, π. Comparison with NUSHELLX code calculations.
doi: 10.1142/S0218301318500519
2017CA29 Nucl.Phys. A968, 453 (2017) N.Carjan, F.A.Ivanyuk, Yu.Ts.Oganessian Pre-scission model predictions of fission fragment mass distributions for super-heavy elements RADIOACTIVITY 279,280,281Ds, 281Rg, 282,283,284Cn, 284,285,286Fl[from superheavies produced in 48Ca impacting neutron-rich transuranium targets and sequentiual α-decays]; calculated relative yields from 279,281Ds, 281Rg, 282,284Cn vs mass number and vs TKE, potential energy surfaces, deformation of 280Ds and 284Cn. Fl, Lv, Og, Z=126(SF); calculated fragment mass distribution. 284,304Fl, 308,328126; calculated potential energy surface, deformation vs fragment mass. 274,276,278,280,282Fl; calculated yields vs fragment mass, potential energy surface, deformation. 252,254,256,258,262No; calculated fragment mass distribution, yield vs TKER; compared with data; deduced effect of octupole deformation on TKE and mass distribution. Calculations done using Strutinsky prescription, nuclear shapes prior to fission descibed using Cassinian ovals. Deformation described using α1, α3, α4 and α6 parameters.
doi: 10.1016/j.nuclphysa.2017.06.048
2017FR03 Int.J.Mod.Phys. E26, 1750030 (2017) H.Fryman-Sinkhorn, E.H.Wang, C.J.Zachary, J.H.Hamilton, A.V.Ramayya, G.H.Bhat, J.A.Sheikh, R.N.Ali, A.A.Wani, A.C.Dai, W.Y.Liang, F.R.Xu, J.K.Hwang, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian Possible very anharmonic one- and two-phonon γ-vibrational bands in 103Mo RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ, γ-γ-coin. 103Mo; deduced γ-ray energies and intensities, J, π, γ-vibrational bands. Comparison with potential energy surface calculations.
doi: 10.1142/S0218301317500306
2017HU09 J.Phys.(London) G44, 095101 (2017) Y.Huang, S.J.Zhu, J.H.Hamilton, Y.J.Chen, E.H.Wang, A.V.Ramayya, Z.G.Xiao, H.J.Li, Y.X.Luo, J.O.Rasmussen, G.M.Ter-Akopian, Y.T.Oganessian Reinvestigation of s = ±i octupole bands in neutron-rich 141Xe RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ. 141Xe; deduced high spin energy levels, J, π, multiplicity, B(E1)/B(E2). Comparison with shell model calculations, available data.
doi: 10.1088/1361-6471/aa8318
2017MA54 Phys.Rev. C 96, 034319 (2017), Erratum Phys.Rev. C 102, 029902 (2020) J.Marcellino, E.H.Wang, C.J.Zachary, J.H.Hamilton, A.V.Ramayya, G.H.Bhat, J.A.Sheikh, A.C.Dai, W.Y.Liang, F.R.Xu, J.K.Hwang, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian One- and two-phonon γ-vibrational bands in neutron-rich 107Mo RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array at LBNL, Berkeley. 107Mo; deduced levels, J, π, rotational and quasiparticle bands, triaxial deformation, configurations; calculated deformation from potential energy surface (PES) plot. Comparison with projected shell model calculations, and with systematics of levels in 103,104,105,106,107,108Mo.
doi: 10.1103/PhysRevC.96.034319
2017OG01 Phys.Scr. 92, 023003 (2017) Y.T.Oganessian, A.Sobiczewski, G.M.Ter-Akopian Superheavy nuclei: from predictions to discovery
doi: 10.1088/1402-4896/aa53c1
2017WA19 Phys.Rev. C 95, 064311 (2017); Erratum Phys.Rev. C 109, 019902 (2024) E.H.Wang, J.H.Hamilton, A.V.Ramayya, Y.X.Liu, H.J.Li, A.C.Dai, W.Y.Liang, F.R.Xu, J.K.Hwang, S.H.Liu, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, Y.Sun, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian Oblate deformation in neutron-rich 118, 119Ag RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array of 101 Ge detectors at LBNL-Berkeley. 118,119Ag; deduced high-spin levels, J, π, multipolarities, bands, configurations. Total Routhian surface and projected shell model calculation. Systematics of 7/2+ bands in 115,117,119Ag. Systematics of energy levels and staggering in negative-parity bands in A=104-118, odd-odd Ag isotopes.
doi: 110.1103/PhysRevC.95.064311
2017WA50 Eur.Phys.J. A 53, 234 (2017) E.H.Wang, W.Lewis, C.J.Zachary, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian New levels and reinvestigation of octupole correlations in 146, 147La RADIOACTIVITY 252Cf(SF); 146,147La; measured fragments Eγ, Iγ, γγ-coin, triple and fourfold γ-coin using Gammasphere; deduced γ transitions, levels, J, π, T1/2, 3+ bands, angular momentum vs energy in different bands, B(E1)/B(E2) ratio, electron dipole strength of selected states. Bands in La compared with those in 143Cs.
doi: 10.1140/epja/i2017-12409-0
2016HU10 Phys.Rev. C 93, 064321 (2016) Y.Huang, S.J.Zhu, J.H.Hamilton, E.H.Wang, A.V.Ramayya, Z.G.Xiao, H.J.Li, Y.X.Luo, J.O.Rasmussen, G.M.Ter-Akopian, Yu.Ts.Oganessian Proposed s =±1 octupole bands in 140Xe RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using Gammasphere array. 140Xe; deduced high-spin levels, J, π, s=+1 and s=-1 parity-doublet octupole bands, multipolarities, multipole mixing ratios, B(E1)/B(E2) ratios, octupole correlations, moments of inertia plots. Level systematics of 140Xe, 143Ba and 148Ce. 106,107,108,109,110Ru; observed γ rays.
doi: 10.1103/PhysRevC.93.064321
2016HU16 Int.J.Mod.Phys. E25, 1650064 (2016) Y.Huang, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, E.H.Wang, Y.X.Liu, Y.Sun, J.K.Hwang, Z.G.Xiao, H.J.Li, Y.X.Luo, J.O.Rasmussen, G.M.Ter-Akopian, Yu.Ts.Oganessian Reinvestigation of two-phonon γ-vibrational band in neutron-rich 114Pd RADIOACTIVITY 252Cf(SF); measured decay products, Eγ.Iγ. 114Pd; deduced energy levels, level scheme, J, π, γ-bands. Comparison with theoretical calculations.
doi: 10.1142/S0218301316500646
2016KO35 Phys.Rev. C 94, 054613 (2016) E.M.Kozulin, G.N.Knyazheva, K.V.Novikov, I.M.Itkis, M.G.Itkis, S.N.Dmitriev, Yu.Ts.Oganessian, A.A.Bogachev, N.I.Kozulina, I.Harca, W.H.Trzaska, T.K.Ghosh Fission and quasifission of composite systems with Z = 108 - 120: Transition from heavy-ion reactions involving S and Ca to Ti and Ni ions NUCLEAR REACTIONS 238U(48Ti, X), E=247, 258, 271 MeV; measured mass and energy distributions of binary fragments detected in coincidence using the double-arm time-of-flight spectrometer CORSET at FLNR-JINR-Dubna facility; deduced fusion probabilities, capture and CN cross sections for fissionlike fragments. Comparison with cross sections measured earlier for 238U(36S, X), (64Ni, X), 154Sm, 238U, 244Pu, 248Cm(48Ca, X) reactions at energies near the Coulomb barrier at the same laboratory.
doi: 10.1103/PhysRevC.94.054613
2015OG01 Rep.Prog.Phys. 78, 36301 (2015) Super-heavy element research
doi: 10.1088/0034-4885/78/3/036301
2015OG05 Nucl.Phys. A944, 62 (2015) Yu.Ts.Oganessian, V.K.Utyonkov Superheavy nuclei from 48Ca-induced reactions
doi: 10.1016/j.nuclphysa.2015.07.003
2015OG07 Phys. Today 68, 32 (2015) Y.T.Oganessian, K.P.Rykaczewski A Beachhead on the island of stability
doi: 10.1063/PT.3.2880
2015UT02 Phys.Rev. C 92, 034609 (2015) V.K.Utyonkov, N.T.Brewer, Yu.Ts.Oganessian, K.P.Rykaczewski, F.Sh.Abdullin, S.N.Dmitriev, R.K.Grzywacz, M.G.Itkis, K.Miernik, A.N.Polyakov, J.B.Roberto, R.N.Sagaidak, I.V.Shirokovsky, M.V.Shumeiko, Yu.S.Tsyganov, A.A.Voinov, V.G.Subbotin, A.M.Sukhov, A.V.Sabelnikov, G.K.Vostokin, J.H.Hamilton, M.A.Stoyer, S.Y.Strauss Experiments on the synthesis of superheavy nuclei 284Fl and 285Fl in the 239, 240Pu + 48Ca reactions NUCLEAR REACTIONS 240Pu(48Ca, 3n)285Fl, E=245, 250 MeV; 240Pu(48Ca, 4n)284Fl, E=245, 250 MeV; 239Pu(48Ca, 3n)284Fl, E=245 MeV; measured evaporation residues (ER), α, and SF fragments, ER-α and ER-SF correlated events, σ using DGFRS separator at U400 cyclotron facility of FLNR-JINR. Decay studies. Super heavy nuclei. Systematics of cross sections. RADIOACTIVITY 284Fl(SF), 285Fl(α)[from 239,240Pu(48Ca, xn), E=245, 250 MeV]; 281Cn, 277Ds, 273Hs, 269Sg(α), 265Rf[from 285Fl α decay chain]; measured EER, Eα, ESF, T1/2; deduced Q(α). Systematics of SF half-lives and α-decay energies.
doi: 10.1103/PhysRevC.92.034609
2015WA28 Phys.Rev. C 92, 034317 (2015); Erratum Phys.Rev. C 109, 029902 (2024) E.H.Wang, A.Lemasson, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, J.M.Eldridge, A.Navin, M.Rejmund, S.Bhattacharyya, S.H.Liu, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, H.L.Liu, H.Zhou, Y.X.Liu, H.J.Li, Y.Sun, F.R.Xu, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian, M.Caamano, E.Clement, O.Delaune, F.Farget, G.de France, B.Jacquot Identification of new transitions and mass assignments of levels in 143-153Pr NUCLEAR REACTIONS 9Be(238U, F), E=6.2 MeV/nucleon; measured Eγ, Iγ, (fission fragment)γ-, γγ-coin using VAMOS++ spectrometer and EXOGAM array at GANIL. 143,144,145,146,147,148,149,150,151,152,153Pr; deduced levels, J, π, bands. Comparison with previous experimental data.
doi: 10.1103/PhysRevC.92.034317
2014LI46 Phys.Rev. C 90, 047303 (2014) H.J.Li, S.J.Zhu, J.H.Hamilton, E.H.Wang, A.V.Ramayya, Y.J.Chen, J.K.Hwang, J.Ranger, S.H.Liu, Z.G.Xiao, Y.Huang, Z.Zhang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, G.M.Ter-Akopian, Yu.Ts.Oganessian, W.C.Ma Reinvestigation of high spin states and proposed octupole correlations in 147Ce RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, triple- and four-fold γγ-coin using Gammasphere detector array at LBNL facility. 147Ce; deduced high-spin levels, bands, B(E1)/B(E2) ratios, octupole correlations. Comparison with reflection-asymmetric shell-model calculations. Systematics of octupole band structures in 145Ba, 147Ce, and 149Nd.
doi: 10.1103/PhysRevC.90.047303
2014WA53 Phys.Rev. C 90, 067306 (2014) E.H.Wang, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, S.H.Liu, N.T.Brewer, Y.X.Luo, J.O.Rasmussen, S.J.Zhu, G.M.Ter-Akopian, Yu.Ts.Oganessian Identification of a possible proton two-quasiparticle band in 158Sm RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array at LBNL facility. 158Sm; deduced high-spin levels, J, π, bands, configuration, Comparison with projected shell model (PSM) calculations. Systematics of 2-quasiparticle bands in 156,158Sm, 156Nd.
doi: 10.1103/PhysRevC.90.067306
2013LI23 Phys.Rev. C 87, 057302 (2013) S.H.Liu, J.H.Hamilton, A.V.Ramayya, S.J.Zhu, Y.Shi, F.R.Xu, J.C.Batchelder, N.T.Brewer, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, W.C.Ma, A.V.Daniel, G.M.Ter-Akopian, Yu.Ts.Oganessian New high-spin level scheme of neutron-rich 112Rh RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 112Rh; deduced high-spin levels, J, π, bands, triaxiality. Total Routhian surface calculations. Systematics of yrare bands in 112,114Rh.
doi: 10.1103/PhysRevC.87.057302
2013LI52 Phys.Rev. C 88, 054311 (2013) H.J.Li, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, Y.X.Liu, Y.Sun, Z.G.Xiao, E.H.Wang, J.M.Eldridge, Z.Zhang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian, W.C.Ma Identification of multi-phonon γ-vibrational bands in odd-Z 105Nb RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, three and four-fold γγ-coin using Gammasphere array at LBNL facility. 105Nb; deduced high-spin levels, J, π, multi-phonon γ-vibrational bands, alignment plots; calculated total Routhian surfaces (TRS) with cranked shell model. Comparison with triaxial projected shell model calculations. Systematics of level energies and bandhead energies for ground, one-phonon and two-phonon bands in 103,105Nb, 104,105,106,108Mo, 107,109Tc, 108,110,112,114Ru.
doi: 10.1103/PhysRevC.88.054311
2013LU18 Nucl.Phys. A919, 67 (2013); Erratum Nucl.Phys. A983, 321 (2019) Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, S.Frauendorf, J.K.Hwang, N.J.Stone, S.J.Zhu, N.T.Brewer, E.Wang, I.Y.Lee, S.H.Liu, G.M.Ter Akopian, A.V.Daniel, Yu.Ts.Oganessian, M.A.Stoyer, R.Donangelo, W.C.Ma, J.D.Cole, Y.Shi, F.R.Xu New insights into the nuclear structure in neutron-rich 112, 114, 115, 116, 117, 118Pd RADIOACTIVITY 252Cf(SF); measured fission fragments Eγ, Iγ(θ), γγ-coin using Compton-suppressed Ge detectors of Gammasphere array. 112,114,115,116,117,118Pd deduced levels, J, π, γ transitions, rotational bands, γ bands, triaxial deformation, wobbling, band crossing, backbanding, shape evolution; calculated deformation, shape evolution, band crossing using TRS (total Ruthian surface).
doi: 10.1016/j.nuclphysa.2013.10.002
2013OG01 Phys.Rev. C 87, 014302 (2013) Yu.Ts.Oganessian, F.Sh.Abdullin, S.N.Dmitriev, J.M.Gostic, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, N.J.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin Investigation of the 243Am + 48Ca reaction products previously observed in the experiments on elements 113, 115, and 117 NUCLEAR REACTIONS 243Am(48Ca, xn)287Mc/288Mc/289Mc, E=239.8-253.8 MeV; measured evaporation residues (ER), α, and SF fragments, ER-α and ER-SF correlated events, σ at U400 cyclotron facility of FLNR, JINR. 249Bk(48Ca, xn)293Ts/294Ts; 237Np(48Ca, 3n)282Nh; analyzed data. RADIOACTIVITY 287,288,289Mc, 283,284,285Nh, 279,280Rg, 275,276Mt, 271,272Bh(α); 267,268Db, 281Rg(SF); measured T1/2. 293,297Ts, 290Mc, 282,286Nh, 278,282Rg, 274,278Mt, 270,274Bh(α); 266,270Db(SF); analyzed and compared previous half-life data.
doi: 10.1103/PhysRevC.87.014302
2013OG03 Phys.Rev. C 87, 034605 (2013) Yu.Ts.Oganessian, V.K.Utyonkov, F.Sh.Abdullin, S.N.Dmitriev, R.Graeger, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, M.A.Ryabinin, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, N.J.Stoyer, V.G.Subbotin, K.Subotic, A.M.Sukhov, Yu.S.Tsyganov, A.Turler, A.A.Voinov, G.K.Vostokin, P.A.Wilk, A.Yakushev Synthesis and study of decay properties of the doubly magic nucleus 270Hs in the 226Ra + 48Ca reaction NUCLEAR REACTIONS 226Ra(48Ca, 4n)270Hs, E=229, 234, 241 MeV; measured reaction products, σ(E), ER-α correlations using U400 cyclotron and Dubna gas-filled recoil separator at FLNR, JINR facility. Relatively high production cross section due to high fission barrier arising from nuclear shell effects. RADIOACTIVITY 270Hs(α)[from 226Ra(48Ca, 4n), E=229, 234, 241 MeV]; 266Sg(SF)[from 270Hs α decay]; measured Eα, evaporation residues-α correlations, T1/2. Comparison with previous studies. Systematics of α decay and SF half-lives for N=148-172 No, Rf, Sg, and Hs nuclei.
doi: 10.1103/PhysRevC.87.034605
2013OG04 Phys.Rev. C 87, 054621 (2013) Yu.Ts.Oganessian, F.Sh.Abdullin, C.Alexander, J.Binder, R.A.Boll, S.N.Dmitriev, J.Ezold, K.Felker, J.M.Gostic, R.K.Grzywacz, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.Miernik, D.Miller, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.V.Shumeiko, M.A.Stoyer, N.J.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin Experimental studies of the 249Bk+48Ca reaction including decay properties and excitation function for isotopes of element 117, and discovery of the new isotope 277Mt NUCLEAR REACTIONS 249Bk(48Ca, 3n), (48Ca, 4n), E=243.7, 255.7, 259.8 MeV; measured σ(E) for production of 293,294Ts using DGFRS separator at FLNR, JINR facility. Comparison with theoretical calculations. RADIOACTIVITY 293,294Ts, 289,290Mc, 285,286Nh, 281,282Rg, 278Mt, 274Bh(α)[from α decay chains of 293Ts and 294Ts formed in 249Bk(48Ca, 3n), (48Ca, 4n), E=243.7, 255.7, 259.8 MeV]; measured Eα, Iα, half-lives. 270Db, 277Mt, 281Rg(SF); measured decay energy, half-lives. 281Rg(α), (SF); measured α/SF branching ratio. 277Mt; identified new isotope. Systematics of Q(α), SF- and α-decay half-lives for isotopes in Z=104-117, N=150-177 regions.
doi: 10.1103/PhysRevC.87.054621
2013SI09 Bull.Rus.Acad.Sci.Phys. 77, 355 (2013); Izv.Akad.Nauk RAS, Ser.Fiz 77, 398 (2013) S.I.Sidorchuk, A.A.Bezbakh, R.Wolski, M.S.Golovkov, A.V.Gorshkov, V.A.Gorshkov, L.V.Grigorenko, I.A.Egorova, G.Kaminski, S.A.Krupko, E.A.Kuzmin, E.Yu.Nikolskii, Yu.Ts.Oganessian, Yu.L.Parfenova, R.S.Slepnev, S.V.Stepantsov, G.M.Ter-Akopian, A.S.Fomichev, V.Chudoba, P.G.Sharov, P.Jaluvkova Correlation Investigations of the Low-Energy 10He Spectrum NUCLEAR REACTIONS 3H(8He, p), E=21.5 MeV/nucleon; measured reaction products, Ep, Ip; deduced missing mass spectrum, J, π of excited states. Comparison with available data.
doi: 10.3103/S1062873813040278
2012FO24 J.Phys.:Conf.Ser. 337, 012025 (2012) A.S.Fomichev, G.M.Ter-Akopian, A.A.Bezbakh, V.Chudoba, A.V.Daniel, M.S.Golovkov, A.V.Gorshkov, V.A.Gorshkov, L.V.Grigorenko, G.Kaminski, S.A.Krupko, Y.Ts.Oganessian, Y.L.Parfenova, S.I.Sidorchuk, R.S.Slepnev, L.Standylo, S.V.Stepantsov, R.Wolski, S.N.Ershov, V.K.Lukyanov, B.V.Danilin, A.A.Korsheninnikov, V.Z.Goldberg, M.Pfutzner, I.G.Mukha, H.Simon, O.B.Tarasov, N.K.Timofeyuk, M.V.Zhukov Status of the ACCULINNA-2 project at FLNR
doi: 10.1088/1742-6596/337/1/012025
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
2012LI54 Phys.Rev. C 86, 067302 (2012) H.J.Li, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, Z.G.Xiao, M.Sakhaee, J.Y.Guo, S.W.Chen, N.T.Brewer, S.H.Liu, K.Li, E.Y.Yeoh, Z.Zhang, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, G.Ter-Akopian, A.Daniel, Yu.Ts.Oganessian, W.C.Ma Identification of a new side-band and proposed octupole correlations in very neutron-rich 152Ce RADIOACTIVITY 252Cf(SF); measured prompt γ spectrum, Eγ, Iγ, γγ-coin using Gammasphere array at LBNL. 152Ce; deduced high-spin levels, J, p, rotational bands, β2 and β3 deformations, B(E1)/B(E2) ratios, moments of inertia plots, octupole band with s=+1. Comparison with calculations in a reflection asymmetric relativistic mean-field (RAS-RMF) approach. Calculated β2 versus β3 contour plot.
doi: 10.1103/PhysRevC.86.067302
2012OG02 Phys.Rev.Lett. 108, 022502 (2012) Yu.Ts.Oganessian, F.Sh.Abdullin, S.N.Dmitriev, J.M.Gostic, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin New Insights into the 243Am+48Ca Reaction Products Previously Observed in the Experiments on Elements 113, 115, and 117 NUCLEAR REACTIONS 243Am(48Ca, 3n)288Mc, E=240 MeV; 243Am, 249Bk(48Ca, X)289Mc, E not given; measured reaction products. 291Mc, 291Mc, 297Ts; deduced σ. Comparison with other data. RADIOACTIVITY 288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α), 268Db(SF); 289Mc, 285Nh, 281Rg(α); 293Ts, 289Mc, 285Nh, 281Rg(α); measured decay products, Eα, Iα; deduced decay chains, strong support for the elements of 113 and 115.
doi: 10.1103/PhysRevLett.108.022502
2012OG06 Phys.Rev.Lett. 109, 162501 (2012) Yu.Ts.Oganessian, F.Sh.Abdullin, C.Alexander, J.Binder, R.A.Boll, S.N.Dmitriev, J.Ezold, K.Felker, J.M.Gostic, R.K.Grzywacz, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.Miernik, D.Miller, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.V.Shumeiko, M.A.Stoyer, N.J.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin Production and Decay of the Heaviest Nuclei 293, 294117 and 294118 NUCLEAR REACTIONS 249Bk(48Ca, X)293Ts/294Ts, E=247, 252 MeV; 249Cf(48Ca, 3n)294Og, E=245, 251 MeV; measured reaction products, Eα, Iα; deduced average σ, T1/2. Comparison with available data. RADIOACTIVITY 294Og, 293,294Ts, 290Lv, 289,290Mc(α), 286Fl(α), (SF), 285,286Nh(α), 282Cn(SF), 281Rg(SF), 282Rg(α), 278Mt, 274Bh(α), 270Db(SF); measured decay products, Eα, Iα; deduced discovery z=117 element, T1/2, decay branch, Q-values. Comparison with available data.
doi: 10.1103/PhysRevLett.109.162501
2012SI07 Phys.Rev.Lett. 108, 202502 (2012) S.I.Sidorchuk, A.A.Bezbakh, V.Chudoba, I.A.Egorova, A.S.Fomichev, M.S.Golovkov, A.V.Gorshkov, V.A.Gorshkov, L.V.Grigorenko, P.Jaluvkova, G.Kaminski, S.A.Krupko, E.A.Kuzmin, E.Yu.Nikolskii, Yu.Ts.Oganessian, Yu.L.Parfenova, P.G.Sharov, R.S.Slepnev, S.V.Stepantsov, G.M.Ter-Akopian, R.Wolski, A.A.Yukhimchuk, S.V.Filchagin, A.A.Kirdyashkin, I.P.Maksimkin, O.P.Vikhlyantsev Structure of 10He Low-Lying States Uncovered by Correlations NUCLEAR REACTIONS 3H(8He, p), E=21.5 MeV/nucleon; measured reaction products, Ep, Ip. 10He; deduced σ, ground and low-lying state energies, J, π, resonance width. Comparison with available data.
doi: 10.1103/PhysRevLett.108.202502
2011HA63 J.Phys.:Conf.Ser. 312, 082026 (2011) J.H.Hamilton, Yu.Ts.Oganessian, F.Sh.Abdullin, P.D.Bailey, D.Benker, M.E.Bennett, S.N.Dmitriev, J.Ezold, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, C.E.Porter, A.V.Ramayya, F.Riley, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, R.Sudowe, A.M.Sukhov, Tu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, P.A.Wilk Synthesis of the New Element with Z=117 NUCLEAR REACTIONS 249Bk(48Ca, 4n)293Ts, E=252 MeV;249Bk(48Ca, 3n)294Ts, E=252 MeV; measured Eα, α-decay chains, ER, fission fragments; deduced new element 117, T1/2.
doi: 10.1088/1742-6596/312/4/082026
2011IT06 Phys.Rev. C 83, 064613 (2011) I.M.Itkis, E.M.Kozulin, M.G.Itkis, G.N.Knyazheva, A.A.Bogachev, E.V.Chernysheva, L.Krupa, Yu.Ts.Oganessian, V.I.Zagrebaev, A.Ya.Rusanov, F.Goennenwein, O.Dorvaux, L.Stuttge, F.Hanappe, E.Vardaci, E.de Goes Brennand Fission and quasifission modes in heavy-ion-induced reactions leading to the formation of Hs* NUCLEAR REACTIONS 249Cf(22Ne, X)271Hs*, E=102, 127 MeV; 248Cm(26Mg, X)274Hs*, E=129, 143, 160 MeV; 238U(36S, X)274Hs*, E=173, 179, 186, 198 MeV; 208Pb(58Fe, X)266Hs*, E=289, 305, 315, 324 MeV; measured binary reaction product spectra in coincidence mode using TOF; deduced yields, mass-energy and TKE distributions of binary products. Comparison of measured fragment mass-energy distributions with those expected for fission processes of excited compound nucleus in the framework of the liquid drop model and empirical systematics.
doi: 10.1103/PhysRevC.83.064613
2011LI25 Phys.Rev. C 83, 064310 (2011) S.H.Liu, J.H.Hamilton, A.V.Ramayya, Y.S.Chen, Z.C.Gao, S.J.Zhu, L.Gu, E.Y.Yeoh, N.T.Brewer, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, W.C.Ma, J.C.Batchelder, A.V.Daniel, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.Gelberg Signature inversion in odd-odd 114Rh: First identification of high-spin states in very neutron-rich 114Rh and application of the triaxial projected shell model RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, fission yields ratios using the Gammasphere array. 114Rh; deduced levels, J, π, rotational bands, signature inversion, configurations. Comparison with Triaxial Projected Shell Model calculations. Systematics of negative-parity yrast bands of odd-odd Rh nuclei with A=104-114.
doi: 10.1103/PhysRevC.83.064310
2011LI29 Phys.Rev. C 84, 014304 (2011) S.H.Liu, J.H.Hamilton, A.V.Ramayya, A.Gelberg, L.Gu, E.Y.Yeoh, S.J.Zhu, N.T.Brewer, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, W.C.Ma, A.V.Daniel, Yu.Ts.Oganessian, G.M.Ter-Akopian High-spin level structure of 115Rh: Evolution of triaxiality in odd-even Rh isotopes RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin using Gammasphere array. 115Rh; deduced levels, J, π, bands, moment of inertia, signature splitting, fission yield ratios. Comparison with Rotor plus particle model calculations. Systematics of level energies, signature splittings and moments of inertia plots of 107,109,111,113,115Rh nuclei.
doi: 10.1103/PhysRevC.84.014304
2011LI34 Int.J.Mod.Phys. E20, 1825 (2011) K.Li, H.Hamilton, A.V.Ramayya, S.H.Liu, X.Q.Zhang, N.T.Brewer, J.K.Hwang, C.Goodin, S.J.Zhu, Y.X.Luo, J.O.Rasmussen, I.Y.Lee, S.C.Wu, R.Donangelo, A.V.Daniel, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.Unzhakova, J.D.Cole, W.C.Ma, M.A.Stoyer Identification of high-spin states in neutron-rich 89, 90, 92Kr and 86Se RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ, γ-γ-γ-coin. 88,90,92Kr, 86Se; deduced level schemes, energies, J, π. Comparison with nuclear systematics and angular correlation measurements.
doi: 10.1142/S0218301311019635
2011LI41 Phys.Rev. C 84, 044303 (2011) S.H.Liu, J.H.Hamilton, A.V.Ramayya, Y.Shi, F.R.Xu, S.J.Zhu, E.Y.Yeoh, J.C.Batchelder, N.T.Brewer, J.K.Hwang, Y.X.Luo, J.O.Rasmussen, W.C.Ma, A.V.Daniel, G.M.Ter-Akopian, Yu.Ts.Oganessian First identification of high-spin states in the odd-odd neutron-rich nucleus 152Pr RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using GAMMASPHERE array. 152Pr; deduced levels, J, π, bands, conversion coefficients, multipolarity, configurations. 96,97,98,99Y, 149Ce, 151,153Pr; measured Eγ. Systematics of quasi-neutron states in 151Ce, 153Nd, 155Sm, 157Gd, 159Dy, 161Er. Comparison with total Routhian surface (TRS) calculations.
doi: 10.1103/PhysRevC.84.044303
2011OG04 Phys.Rev. C 83, 054315 (2011) Yu.Ts.Oganessian, F.Sh.Abdullin, P.D.Bailey, D.E.Benker, M.E.Bennett, S.N.Dmitriev, J.G.Ezold, J.H.Hamilton, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, C.E.Porter, A.V.Ramayya, F.D.Riley, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, R.Sudowe, A.M.Sukhov, R.Taylor, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, P.A.Wilk Eleven new heaviest isotopes of elements Z = 105 to Z = 117 identified among the products of 249Bk+48Ca reactions RADIOACTIVITY 293,294Ts(α)[from 249Bk(48Ca, xn), E=252 MeV]; 274Bh, 278Mt, 282Rg, 286Nh, 290Mc(α) [from α decay chain of 294Ts]; 281Rg, 285Nh, 289Mc(α)[from α decay chain of 293Ts]; 270Db(SF), (α), (EC)[from α decay of 274Bh]; 281Rg(SF)[from α decay of 285Nh]; measured Eα, half-lives and β decay energies of residues; deduced Q(α). Systematics of α decay half-lives, Q(α) values and β+, EC half-lives of Z=106-118, N=150-175, A=260-295 isotopes. NUCLEAR REACTIONS 249Bk(48Ca, xn)293Ts/294Ts, E=252 MeV; measured production cross sections.
doi: 10.1103/PhysRevC.83.054315
2011OG07 Radiochim.Acta 99, 429 (2011) Synthesis of the heaviest elements in 48Ca-induced reactions RADIOACTIVITY 267Rf(SF), 266,268,270Db(SF), (EC), 269Db(SF), 266Sg(SF), 271Sg(α), (SF), 270,272,274Bh(α), 270,275Hs(α), 274,275,276,278Mt(α), 279Ds(SF), (α), 281Ds(SF), 278,279,280,282Rg(α), 281Rg(SF), 282,284Cn(SF), 285Cn(α), 283Cn(α), (SF), 282,283,284,285,286Nh, 286Fl(α), (SF), 287,288,289Fl, 287,288,289,290Mc, 290,291,292,293Lv, 293,294Ts, 294Og(α); measured decay and fission products, Eα, Iα; deduced decay mode, T1/2, energy, Q-value. Comparison with theoretical calculations.
doi: 10.1524/ract.2011.1860
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
2010OG01 Phys.Rev.Lett. 104, 142502 (2010) Yu.Ts.Oganessian, F.Sh.Abdullin, P.D.Bailey, D.E.Benker, M.E.Bennett, S.N.Dmitriev, J.G.Ezold, J.H.Hamilton, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, C.E.Porter, A.V.Ramayya, F.D.Riley, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, R.Sudowe, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, P.A.Wilk Synthesis of a New Element with Atomic Number Z = 117 NUCLEAR REACTIONS 249Bk(48Ca, 4n), E=252 MeV; 249Bk(48Ca, 3n) , E=247 MeV;measured Eα, Iα, α-α correlations. 293,294Ts; deduced σ, decay chains, T1/2. RADIOACTIVITY 293,294Ts, 289,290Mc, 285,286Nh, 282Rg, 278Mt, 274Bh(α); measured Eα, Iα, and half-lives. 270Db, 281Rg(SF); measured TKE, and T1/2.
doi: 10.1103/PhysRevLett.104.142502
2010SI08 Bull.Rus.Acad.Sci.Phys. 74, 437 (2010); Izv.Akad.Nauk RAS, Ser.Fiz 74, 473 (2010) S.I.Sidorchuk, R.Wolski, M.S.Golovkov, V.A.Gorshkov, L.V.Grigorenko, S.A.Krupko, Yu.Ts.Oganessian, A.M.Rodin, R.S.Slepnev, S.V.Stepantsov, G.M.Ter-Akopian, A.S.Fomichev Investigation of the 6He structure in quasi free scattering reactions NUCLEAR REACTIONS 4He(6He, 2α), (6He, αt), E=25 MeV/nucleon; measured reaction products; deduced momentum correlations for quasi-free scattering, σ, cluster structures.
doi: 10.3103/S1062873810040039
2010SI23 Nucl.Phys. A840, 1 (2010) S.I.Sidorchuk, A.S.Fomichev, M.S.Golovkov, L.V.Grigorenko, V.A.Gorshkov, A.V.Gorshkov, S.A.Krupko, Yu.Ts.Oganessian, A.M.Rodin, R.S.Slepnev, S.V.Stepantsov, G.M.Ter-Akopian, R.Wolski, A.A.Korsheninnikov, E.Yu.Nikolskii, P.Roussel-Chomaz, W.Mittig Study of the 6He structure in the reaction of quasifree scattering 4He(6He, 2α) NUCLEAR REACTIONS 4He(6He, 2α), E=25 MeV/nucleon; measured Eα, Iα, αα-coin; deduced σ, σ(θ), neutron momentum spectrum and reaction mechanism features. Monte-Carlo simulation and PWIA of quasi-free scattering. Secondary radioactive beam.
doi: 10.1016/j.nuclphysa.2010.04.002
2010WI14 Nucl.Instrum.Methods Phys.Res. B268, 28 (2010) D.Wittwer, F.Sh.Abdullin, N.V.Aksenov, Yu.V.Albin, G.A.Bozhikov, S.N.Dmitriev, R.Dressler, R.Eichler, H.W.Gaggeler, R.A.Henderson, S.Hubener, J.M.Kenneally, V.Ya.Lebedev, Yu.V.Lobanov, K.J.Moody, Yu.Ts.Oganessian, O.V.Petrushkin, A.N.Polyakov, D.Piguet, P.Rasmussen, R.N.Sagaidak, A.Serov, I.V.Shirokovsky, D.A.Shaughnessy, S.V.Shishkin, A.M.Sukhov, M.A.Stoyer, N.J.Stoyer, E.E.Tereshatov, Yu.S.Tsyganov, V.K.Utyonkov, G.K.Vostokin, M.Wegrzecki, P.A.Wilk Gas phase chemical studies of superheavy elements using the Dubna gas-filled recoil separator - Stopping range determination RADIOACTIVITY 289Fl, 285Cn(α) [from 244Pu(48Ca, 3n)289Fl, E=265 MeV]; measured decay products, Eα, Iα; deduced α-decay chains.
doi: 10.1016/j.nimb.2009.09.062
2009CH29 Acta Phys.Pol. B40, 899 (2009) V.Chudoba, A.S.Fomichev, M.S.Golovkov, V.A.Gorshkov, S.A.Krupko, Yu.Ts.Oganessian, A.M.Rodin, S.I.Sidorchuk, R.S.Slepnev, S.V.Stepantsov, G.M.Ter-Akopian, R.Wolski, D.Pang, A.A.Korsheninnikov, E.A.Kuzmin, E.Yu.Nikolskii, B.G.Novatskii, D.N.Stepanov, P.Roussel-Chomaz, W.Mittig, A.Ninane, F.Hanappe, L.Stuttge, A.A.Yukhimchuk, Yu.I.Vinogradov, V.V.Perevozchikov, S.K.Grishechkin Low-Energy Spectra of 8He and 10He Studied in (t, p) Type Reactions in Inverse Kinematics NUCLEAR REACTIONS 3H(6He, p), 3H(8He, p), E=25 MeV; measured mass spectrum; deduced J, π, level energies.
2009FO09 Eur.Phys.J. A 42, 465 (2009) A.S.Fomichev, L.V.Grigorenko, M.S.Golovkov, G.M.Ter-Akopian, Yu.Ts.Oganessian, V.A.Gorshkov, S.A.Krupko, A.M.Rodin, S.I.Sidorchuk, R.S.Slepnev, S.V.Stepantsov, R.Wolski, V.Chudoba, A.A.Korsheninnikov, E.A.Kuzmin, E.Yu.Nikolskii, B.G.Novatskii, D.N.Stepanov, P.Roussel-Chomaz, W.Mittig, D.Pang, A.Ninane, F.Hanappe, L.Stuttge, A.A.Yukhimchuk, V.V.Perevozchikov, Yu.I.Vinogradov, S.K.Grishechkin, S.V.Zlatoustovskiy Properties of very n -rich He isotopes NUCLEAR REACTIONS 3H(6He, p), (8He, p), E=25, 27.4 MeV/nucleon; 6,8He; measured reaction products; deduced missing mass spectra, resonance J, π, energy, yields. Comparison with other results.
doi: 10.1140/epja/i2008-10739-6
2009GO01 Phys.Lett. B 672, 22 (2009) M.S.Golovkov, L.V.Grigorenko, G.M.Ter-Akopian, A.S.Fomichev, Yu.Ts.Oganessian, V.A.Gorshkov, S.A.Krupko, A.M.Rodin, S.I.Sidorchuk, R.S.Slepnev, S.V.Stepantsov, R.Wolski, D.Y.Pang, V.Chudoba, A.A.Korsheninnikov, E.A.Kuzmin, E.Yu.Nikolskii, B.G.Novatskii, D.N.Stepanov, P.Roussel-Chomaz, W.Mittig, A.Ninane, F.Hanappe, L.Stuttge, A.A.Yukhimchuk, V.V.Perevozchikov, Yu.I.Vinogradov, S.K.Grishechkin, S.V.Zlatoustovskiy The 8He and 10He spectra studied in the (t, p) reaction NUCLEAR REACTIONS 3H(6He, p), E=25 MeV/nucleon; 3H(8He, p), E=27.4 MeV/nucleon; measured fragment, proton energies, (fragment)(proton)-coin and missing mass spectra; deduced σ. 6,8He deduced ground state energies, E1 strength distribution. Comparison with other data and calculations. Secondary radioactive beam.
doi: 10.1016/j.physletb.2008.12.052
2009GR03 Phys.Part. and Nucl.Lett. 6, 118 (2009) L.V.Grigorenko, M.S.Golovkov, G.M.Ter-Akopian, A.S.Fomichev, Yu.Ts.Oganessian, V.A.Gorshkov, S.A.Krupko, A.M.Rodin, S.I.Sidorchuk, R.S.Slepnev, S.V.Stepantsov, R.Wolski, D.Y.Pang, V.Chudoba, A.A.Korsheninnikov, E.A.Kuzmin, E.Yu.Nikolskii, B.G.Novatskii, D.N.Stepanov, P.Roussel-Chomaz, W.Mittig, A.Ninane, F.Hanappe, L.Stuttge, A.A.Yukhimchuk, V.V.Perevozchikov, Yu.I.Vinogradov, S.K.Grishechkin, S.V.Zlatoustovskiy Soft dipole mode in 8He NUCLEAR REACTIONS 3H(6He, p), E not given; measured Ep, Ip, cross sections. Deduced B(E1).
doi: 10.1134/S1547477109020046
2009OG02 Phys.Rev. C 79, 024603 (2009) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, R.N.Sagaidak, I.V.Shirokovsky, Yu.S.Tsyganov, A.A.Voinov, A.N.Mezentsev, V.G.Subbotin, A.M.Sukhov, K.Subotic, V.I.Zagrebaev, S.N.Dmitriev, R.A.Henderson, K.J.Moody, J.M.Kenneally, J.H.Landrum, D.A.Shaughnessy, M.A.Stoyer, N.J.Stoyer, P.A.Wilk Attempt to produce element 120 in the 244Pu+58Fe reaction NUCLEAR REACTIONS 244Pu(58Fe, xn)298120/299120, E=330.4 MeV;measured α-particle spectra, (evaporation residues)α-coin, and upper limit of production cross section for Z=120 element. No decay chains for 298120 and 299120 were observed.
doi: 10.1103/PhysRevC.79.024603
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
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
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
2008PR03 Nucl.Phys. A802, 45 (2008) E.V.Prokhorova, A.A.Bogachev, M.G.Itkis, I.M.Itkis, G.N.Knyazheva, N.A.Kondratiev, E.M.Kozulin, L.Krupa, Yu.Ts.Oganessian, I.V.Pokrovsky, V.V.Pashkevich, A.Ya.Rusanov The fusion-fission and quasi-fission processes in the reaction 48Ca + 208Pb at energies near the Coulomb barrier NUCLEAR REACTIONS 208Pb(48Ca, X), E=206?242 MeV; measured fragment yields, mass and energy distributions and capture-fission σ. Discussed reaction mechanism in terms of fusion?fission and quasi-fission.
doi: 10.1016/j.nuclphysa.2008.01.016
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
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
2007GO24 Phys.Rev. C 76, 021605 (2007) M.S.Golovkov, L.V.Grigorenko, A.S.Fomichev, A.V.Gorshkov, V.A.Gorshkov, S.A.Krupko, Yu.Ts.Oganessian, A.M.Rodin, S.I.Sidorchuk, R.S.Slepnev, S.V.Stepantsov, G.M.Ter-Akopian, R.Wolski, A.A.Korsheninnikov, E.Yu.Nikolskii, V.A.Kuzmin, B.G.Novatskii, D.N.Stepanov, P.Roussel-Chomaz, W.Mittig New insight into the low-energy 9He spectrum NUCLEAR REACTIONS 2H(8He, p), E=25 MeV/nucleon; measured particle energy and missing mass spectra. 8He deduced levels, J, π.
doi: 10.1103/PhysRevC.76.021605
2007GO41 Eur.Phys.J. Special Topics 150, 23 (2007) M.S.Golovkov, L.V.Grigorenko, A.S.Fomichev, A.V.Gorshkov, V.A.Gorshkov, S.A.Krupko, Yu.Ts.Oganessian, A.M.Rodin, S.I.Sidorchuk, R.S.Slepnev, S.V.Stepantsov, G.M.Ter-Akopian, R.Wolski, A.A.Korsheninnikov, E.Yu.Nikolskii, V.A.Kuzmin, B.G.Novatskii, D.N.Stepanov, S.Fortier, P.Roussel-Chomaz, W.Mittig Properties of low-lying 9He state NUCLEAR REACTIONS 2H(8He, p), E=25 MeV/nucleon; measured proton and 8He energies. 9He; deduced resonance parameters.
doi: 10.1140/epjst/e2007-00256-x
2007IT03 Int.J.Mod.Phys. E16, 957 (2007) M.G.Itkis, A.A.Bogachev, I.M.Itkis, G.N.Knyazheva, N.A.Kondratiev, E.M.Kozulin, L.Krupa, Yu.Ts.Oganessian, I.V.Pokrovsky, E.V.Prokhorova, A.Ya.Rusanov, V.M.Voskresenski, V.A.Rubchenya, W.H.Trzaska The process of fusion-fission of superheavy nuclei NUCLEAR REACTIONS 208Pb(48Ca, X), (50Ti, X), (56Fe, X), (86Kr, X), E not given; 208Pb, 238U, 244Pu, 248Cm(48Ca, X), E not given; measured fragment mass distributions, yields and cross sections.
doi: 10.1142/S0218301307006423
2007IT04 Nucl.Phys. A787, 150c (2007) M.G.Itkis, A.A.Bogachev, I.M.Itkis, J.Kliman, G.N.Knyazheva, N.A.Kondratiev, E.M.Kozulin, L.Krupa, Yu.Ts.Oganessian, I.V.Pokrovsky, E.V.Prokhorova, A.Ya.Rusanov The processes of fusion-fission and quasi-fission of superheavy nuclei NUCLEAR REACTIONS 208Pb(26Mg, F), (48Ca, F), (50Ti, F), (58Fe, F), (64Ni, F), E not given; measured capture, fusion-fission σ; 238U, 244Pu, 248Cm(48Ca, F), E not given; measured fission fragments energy and mass distributions. 144,154Sm, 168Er, 174Yb, 208Pb, 238U, 244Pu, 248Cm(48Ca, F), E not given; 208Pb(58Fe, F), E not given; 248Cm(26Mg, F), E not given; measured fission fragments energy and mass distributions, quasi-fission, capture σ. 246Cm(48Ca, F), E not given; 244Pu(50Ti, F), E not given; measured capture, fusion-fission σ. 232Th, 244Pu, 248Cm(58Fe, F), E not given; 242Pu(64Ni, F), E not given; measured fission fragments energy and mass distributions. 208Pb, 238U, 244Pu, 248Cm(58Fe, F), E not given; 208Pb(86Kr, F), E not given; measured capture, fusion-fission σ. 206Pb(44Ca, F), E=218 MeV; 186W(64Ni, F), E=300 MeV; measured fission fragments mass distributions, average energy. Super heavy element synthesis, fission and fusion reaction mechanisms discussed.
doi: 10.1016/j.nuclphysa.2006.12.026
2007KA26 Phys.Atomic Nuclei 70, 619 (2007); Yad.Fiz. 70, 649 (2007) R.Kalpakchieva, V.A.Maslov, R.A.Astabatian, A.A.Kulko, S.M.Lukyanov, E.R.Markarian, Yu.Ts.Oganessian, Yu.E.Penionzhkevich, N.K.Skobelev, Yu.G.Sobolev Momentum Distributions of 4He Nuclei from the 6He and 6Li Breakup NUCLEAR REACTIONS Au, C(6He, αX), E=10 MeV/nucleon; Ta, Si, Be(6Li, αX), E=18.46 MeV/nucleon; measured momentum distribution of 4He nuclei from the breakup of 6He and 6Li. Compared results to existing data.
doi: 10.1134/S1063778807040023
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
2007OG02 Phys.Rev. C 76, 011601 (2007) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, R.N.Sagaidak, I.V.Shirokovsky, Yu.S.Tsyganov, A.A.Voinov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, V.G.Subbotin, A.M.Sukhov, K.Subotic, V.I.Zagrebaev, G.K.Vostokin, M.G.Itkis, R.A.Henderson, J.M.Kenneally, J.H.Landrum, K.J.Moody, D.A.Shaughnessy, M.A.Stoyer, N.J.Stoyer, P.A.Wilk Synthesis of the isotope 282113 in the 237Np+48Ca fusion reaction NUCLEAR REACTIONS 237Np(48Ca, 3n)282Nh, E=244 MeV; measured Eα, production cross section and T1/2.
doi: 10.1103/PhysRevC.76.011601
2007OG05 Nucl.Phys. A787, 343c (2007) Synthesis and Decay Properties of Heaviest Nuclei with 48Ca-Induced Reactions NUCLEAR REACTIONS 208Pb, 209Bi(48Ca, n), (50Ti, n), (54Cr, n), (58Fe, n), (62Ni, n), (64Ni, n), (70Zn, n), E not given; analyzed σ. 233U, 237Np, 244Pu, 248Cm, 249Cf(22Ne, 4n), (26Mg, 4n), (36S, 5n), (48Ca, 4n), E not given; measured Eα, αα-coin following residual nucleus decay; analyzed σ; deduced reaction mechanism features, hindrance and survivability. Comparison with other data. NUCLEAR STRUCTURE Z=100-118; compiled, analyzed superheavy element production and decay data. RADIOACTIVITY 266,267,268Db, 269,271Sg, 270,272Bh, 275Hs, 274,275,276Mt, 279,281Ds, 278,279,280Rg, 283,284,285Cn, 280,281,282,283,284Nh, 286,287,288,289Fl, 287,288Mc, 290,291,292,293Lv, 294Og(α); measured Eα, T1/2. 267Rf, 271Sg, 279,281Ds, 282,283,284,285Cn, 286,288Fl(SF); measured T1/2. Comparison with model predictions. Comparison with other data.
doi: 10.1016/j.nuclphysa.2006.12.055
2007OG07 Eur.Phys.J. D 45, 17 (2007) Study of heavy nuclei at FLNR (Dubna)
doi: 10.1140/epjd/e2007-00208-4
2007OG08 J.Nucl.Radiochem.Sci. 8, 39 (2007) Study of Heavy Nuclei at FLNR (Dubna) NUCLEAR REACTIONS 243Am(48Ca, X)Mc, E not given; measured reaction products, Eα, Iα. 268Db, 283Cn, 287Fl; deduced σ, T1/2, total kinetic energies, neutron multiplicities. Comparison with available data. The Gas-Filled Recoil Separator (DGFRS).
doi: 10.14494/jnrs2000.8.39
2007PE02 Eur.Phys.J. A 31, 185 (2007) Yu.E.Penionzhkevich, R.A.Astabatyan, N.A.Demekhina, G.G.Gulbekian, R.Kalpakchieva, A.A.Kulko, S.M.Lukyanov, E.R.Markaryan, V.A.Maslov, Yu.A.Muzychka, Yu.Ts.Oganessian, R.V.Revenko, N.K.Skobelev, Yu.G.Sobolev, D.A.Testov, T.Zholdybaev Excitation functions of fusion reactions and neutron transfer in the interaction of 6He with 197Au and 206Pb NUCLEAR REACTIONS 197Au(6He, 2n), (6He, 3n), (6He, 4n), (6He, 5n), (6He, 6n), (6He, 7n), E ≈ 10-70 MeV; 206Pb(6He, 2n), E ≈ 10-26 MeV; 197Au(6He, X)194Au/196Au/198Au, E ≈ 10-70 MeV; measured excitation functions. Comparison with model predictions.
doi: 10.1140/epja/i2006-10166-9
2007PE39 Iader.Fiz.Enerh. 8 no.2, 56 (2007); Nuc.phys.atom.energ. 8, no.2. 56 (2007) Yu.E.Penionzhkevich, R.A.Astabatyan, N.A.Demekhina, R.Kalpakchieva, A.A.Kulko, S.P.Lobastov, S.M.Lukyanov, E.R.Markaryan, V.A.Maslov, Yu.A.Muzychka, Yu.Ts.Oganessian, D.N.Rassadov, N.K.Skobelev, Yu.G.Sobolev, T.Zholdybaev Peculiarities in the interaction of 6He with 197Au and 206Pb at energies close to the Coulomb barrier NUCLEAR REACTIONS 197Au(6He, 2n), (6He, 3n), (6He, 4n), (6He, 5n), (6He, 6n), (6He, 7n), E ≈ 10-70 MeV; 206Pb(6He, 2n), E ≈ 10-70 MeV;197Au(6He, X)194Au/196Au/198Au, E ≈ 10-70 MeV; measured reaction products, Eγ, Iγ; deduced excitation functions, σ.
doi: 10.15407/jnpae
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
2007TE12 Eur.Phys.J. Special Topics 150, 61 (2007) G.M.Ter-Akopian, A.S.Fomichev, M.S.Golovkov, L.V.Grigorenko, S.A.Krupko, Yu.Ts.Oganessian, A.M.Rodin, S.I.Sidorchuk, R.S.Slepnev, S.V.Stepantsov, R.Wolski, A.A.Korsheninnikov, E.Yu.Nikolskii, P.Roussel-Chomaz, W.Mittig, V.A.Kuzmin, B.G.Novatskii, D.N.Stepanov Neutron excess nuclei of hydrogen and helium at ACCULINNA NUCLEAR REACTIONS 2H(8He, 3He), E≈ 25 MeV/nucleon; measured 3He, 3H energies, yields and coincidences. Deduced 7H missing mass spectrum, limit for the reaction exit channel populating a resonance lying 0-3 MeV above decay threshold. 4He(6He, 2α), E=25 MeV/nucleon; measured Eα, Iα, αα-coin, angular and momentum distributions. Deduced cross section.
doi: 10.1140/epjst/e2007-00267-7
2006DA21 Phys.Atomic Nuclei 69, 1405 (2006) A.V.Daniel, J.H.Hamilton, A.V.Ramayya, A.S.Fomichev, Yu.Ts.Oganessian, G.S.Popeko, A.M.Rodin, G.M.Ter-Akopian, J.K.Hwang, D.Fong, C.Goodin, K.Li, J.O.Rasmussen, D.Seweryniak, M.Carpenter, C.J.Lister, S.H.Zhu, R.V.F.Janssens, J.Batchelder, J.Kliman, L.Krupa, W-C.Ma, S.J.Zhu, L.Chaturvedi, J.D.Cole Experiment Aimed at the Study of 252Cf Binary and Ternary Fission RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin, fission fragment and light charged particle yields. Gammasphere array.
doi: 10.1134/S1063778806080199
2006FO10 Phys.Atomic Nuclei 69, 1161 (2006) D.Fong, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, C.Goodin, K.Li, J.Kormicki, J.O.Rasmussen, Y.X.Luo, S.C.Wu, I.Y.Lee, A.V.Daniel, G.M.Ter-Akopian, G.S.Popeko, A.S.Fomichev, A.M.Rodin, Yu.Ts.Oganessian, M.Jandel, J.Kliman, L.Krupa, J.D.Cole, M.A.Stoyer, R.Donangelo, W.C.Ma Bimodal Fission in Binary and Ternary Spontaneous Fission of 252Cf RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-, αγ-coin; deduced fission fragment isotopic yields, neutron multiplicity distributions, evidence for "hot" mode. Gammasphere array.
doi: 10.1134/S1063778806070118
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
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
2006OG03 Phys.Atomic Nuclei 69, 932 (2006); Yad.Fiz. 69, 961 (2006) Reactions of Synthesis of Heavy Nuclei: Brief Summary and Outlook
doi: 10.1134/S1063778806060032
2006OG05 Phys.Rev. C 74, 044602 (2006) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, R.N.Sagaidak, I.V.Shirokovsky, Yu.S.Tsyganov, A.A.Voinov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, K.Subotic, V.I.Zagrebaev, G.K.Vostokin, M.G.Itkis, K.J.Moody, J.B.Patin, D.A.Shaughnessy, M.A.Stoyer, N.J.Stoyer, P.A.Wilk, J.M.Kenneally, J.H.Landrum, J.F.Wild, R.W.Lougheed Synthesis of the isotopes of elements 118 and 116 in the 249Cf and 245Cm + 48Ca fusion reactions NUCLEAR REACTIONS 245Cm(48Ca, 2n), (48Ca, 3n), E=249, 255 MeV; 249Cf(48Ca, 3n), E=251 MeV; measured Eα, αα-coin, fission fragment spectra following residual nucleus decay; deduced σ. RADIOACTIVITY 294Og, 290,291Lv, 286,287Fl, 283Cn, 279Ds, 275Hs, 271Sg(α) [from 245Cm, 249Cf(48Ca, xn) and subsequent decay]; measured Eα, T1/2. 282Cn, 267Rf(SF) [from α-decay of 286Rf and 271Sg]; measured fission fragment spectra, T1/2.
doi: 10.1103/PhysRevC.74.044602
2006PE37 Phys.Part. and Nucl.Lett. 3, 362 (2006) Yu.E.Penionzhkevich, R.A.Astabatyan, N.A.Demekhina, Z.Dlouhy, R.Kalpakchieva, A.A.Kulko, S.P.Lobastov, S.M.Lukyanov, E.R.Markaryan, V.A.Maslov, Yu.A.Muzychka, Yu.Ts.Oganessian, D.N.Rassadov, N.K.Skobelev, Yu.G.Sobolev, V.Yu.Ugryumov, J.Vincour, T.Zholdybaev Some Peculiarities in the Interaction of 6He with 197Au and 206Pb NUCLEAR REACTIONS 197Au(6He, 2n), (6He, 3n), (6He, 4n), (6He, 5n), (6He, 6n), (6He, 7n), E ≈ 10-70 MeV; 206Pb(6He, 2n), E ≈ 10-26 MeV; 197Au(6He, X)196Au/198Au/199Au, E ≈ 10-70 MeV; measured excitation functions. Comparison with model predictions.
doi: 10.1134/S1547477106060045
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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