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NSR database version of April 27, 2024.

Search: Author = A.V.Khalkin

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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 ^{286,287,288,289}Mc(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, T_1/2, σ. The new separator DGFRS-2 and cyclotron DC280 of the SHE Factory at FLNR JINR.

doi: 10.3103/S106287382370291X
Citations: PlumX Metrics

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, E_SF, (ER)α-coin, αα-coin, α(SF)-coin, ER(SF)-coin, T_1/2. ²⁶⁸Db; deduced α/SF branching ratio. ²⁶⁴Lr; deduced new isotope, T_1/2, 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
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

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, E_SF; deduced T_1/2. ²⁶⁸Db; deduced α/SF branching ratio. ²⁸⁶Mc; deduced new isotope. Comparison of deduced half-lives with theoretical predictions.

doi: 10.1103/PhysRevC.106.064306
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1980NE09      Yad.Fiz. 32, 1209 (1980)

V.O.Nesterenko, V.G.Soloviev, A.V.Khalkin

Study of Correlations in Ground States of Deformed Nuclei

NUCLEAR STRUCTURE ^152,154Sm, ²³⁸U, ¹⁶⁶Er; calculated average ground state quasiparticle number, B(λ). ²²⁸Th; calculated average ground state quasiparticle number. RPA.