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NSR database version of April 11, 2024.

Search: Author = Z.G.Gan

Found 66 matches.

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2024WA14      Phys.Lett. B 850, 138503 (2024)

J.G.Wang, Z.G.Gan, Z.Y.Zhang, M.H.Huang, L.Ma, M.M.Zhang, H.B.Yang, C.L.Yang, Y.H.Qiang, X.Y.Huang, Z.Zhao, S.Y.Xu, Z.C.Li, L.X.Chen, L.C.Sun, H.Zhou, X.Zhang, X.L.Wu, Y.L.Tian, Y.S.Wang, J.Y.Wang, W.X.Huang, M.L.Liu, Z.W.Lu, Y.He, Z.Z.Ren, S.G.Zhou, X.H.Zhou, H.S.Xu, V.K.Utyonkov, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov

α-decay properties of new neutron-deficient isotope 203Ac

RADIOACTIVITY 203Ac, 199Fr, 195At, 191Bi(α) [from 169Tm(40Ca, 6n)203Ac, E=226 MeV]; measured decay products, Eα, Iα; deduced α-particle energies, transitions T1/2, J, π, partial decay scheme, reduced α-decay widths, proton separation energies, the onset of deformation in neutron-deficient Ac isotopes. Comparison with systematics. The superconducting linear accelerator, China Accelerator Facility for superheavy Elements (CAFE2) at Institute of Modern Physics, Chinese Academy of Sciences.

doi: 10.1016/j.physletb.2024.138503
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2024YA04      Phys.Rev.Lett. 132, 072502 (2024)

H.B.Yang, Z.G.Gan, Y.J.Li, M.L.Liu, S.Y.Xu, C.Liu, M.M.Zhang, Z.Y.Zhang, M.H.Huang, C.X.Yuan, S.Y.Wang, L.Ma, J.G.Wang, X.C.Han, A.Rohilla, S.Q.Zuo, X.Xiao, X.B.Zhang, L.Zhu, Z.F.Yue, Y.L.Tian, Y.S.Wang, C.L.Yang, Z.Zhao, X.Y.Huang, Z.C.Li, L.C.Sun, J.Y.Wang, H.R.Yang, Z.W.Lu, W.Q.Yang, X.H.Zhou, W.X.Huang, N.Wang, S.G.Zhou, Z.Z.Ren, H.S.Xu

Discovery of New Isotopes 160Os and 156W: Revealing Enhanced Stability of the N=82 Shell Closure on the Neutron-Deficient Side

NUCLEAR REACTIONS 106Cd(58Ni, 4n)160Os, E=335 MeV; measured reaction products; deduced new isotopes, σ. The Spectrometer for Heavy Atoms and Nuclear Structure (SHANS), the Sector Focusing Cyclotron of the Heavy Ion Research Facility in Lanzhou (HIRFL), China.

RADIOACTIVITY 160Os(α), 156W(β+); measured decay products, Eα, Iα; deduced α-particles energies, Q-values, T1/2, α-decay reduced widths, N=82 shell closure toward the proton drip line. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.132.072502
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2024ZH04      Phys.Rev. C 109, 014608 (2024)

M.M.Zhang, Z.Y.Zhang, Z.G.Gan, N.Wang, H.Yao, J.G.Wang, M.H.Huang, L.Ma, H.B.Yang, C.L.Yang, Y.L.Tian, Y.S.Wang, J.Y.Wang, Y.H.Qiang, X.L.Wu, S.Y.Xu, X.Y.Huang, Z.C.Li, Z.Zhao, L.C.Sun, H.Zhou, X.Zhang, G.Xie, L.Zhu, J.H.Zheng, Y.J.Li, F.Guan, Z.W.Lu, W.X.Huang, Y.He, H.S.Xu, Z.Z.Ren, S.G.Zhou

Experimental cross section study of 40Ca + 175Lu: Searching for new neutron-deficient Pa isotopes

doi: 10.1103/PhysRevC.109.014608
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2024ZH19      Phys.Rev. C 109, 034314 (2024)

Z.Zhao, Z.G.Gan, Z.Y.Zhang, J.G.Wang, M.H.Huang, L.Ma, H.B.Yang, M.M.Zhang, C.L.Yang, S.Y.Xu, X.Y.Huang, Z.C.Li, L.C.Sun, X.L.Wu, Y.S.Wang, Y.L.Tian, Y.H.Qiang, J.Y.Wang, W.X.Huang, Y.He, L.T.Sun, V.K.Utyonkov, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov

Reinvestigation of the decay properties of 261, 262Bh at the gas-filled recoil separator SHANS2

doi: 10.1103/PhysRevC.109.034314
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2023LU04      Phys.Rev. C 108, 014302 (2023)

H.Y.Lu, Z.Liu, Z.H.Li, X.Wang, J.Li, H.Hua, H.Huang, W.Q.Zhang, Q.B.Zeng, X.H.Yu, T.H.Huang, M.D.Sun, J.G.Wang, X.Y.Liu, B.Ding, Z.G.Gan, L.Ma, H.B.Yang, Z.Y.Zhang, L.Yu, J.Jiang, K.L.Wang, Y.S.Wang, M.L.Liu, C.J.Lin, L.J.Sun, N.R.Ma, H.S.Xu, X.H.Zhou, G.Q.Xiao, F.S.Zhang

Reinvestigation of 222U in high-precision digital α-decay spectroscopy: Solution to the reduced decay-width anomaly

RADIOACTIVITY 222U(α) [from 186W(40Ar, 4n), E=80 MeV, followed by separation of fragments using SHANS separator at HRIFL-Lanzhou]; 218Th, 214Ra(α)[from 222U α decay chain]; measured Eα, Iα, evaporation residues (ER)-α correlations, T1/2 using DSSD detectors; deduced reduced α-decay width, and analyzed using NpNn scheme. 218Ac, 219Th, 220Pa(α); measured Eα, and T1/2. Systematics of reduced α-decay widths for g.s. to g.s. α transitions in even-even Z=84-92, N≥126 isotopes as function of NpNn. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.108.014302
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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
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2022GA22      Eur.Phys.J. A 58, 158 (2022)

Z.G.Gan, W.X.Huang, Z.Y.Zhang, H.Zhou, H.S.Xu

Results and perspectives for study of heavy and super-heavy nuclei and elements at IMP/CAS

COMPILATION 208,209Hg, 185,186Hf, 237,238Th, 239Pa, 175Er, 197Os, 258,259Db, 264,265,266Bh, 235Am, 271Ds; compiled nuclear properties, T1/2 of new isotopes produced by high-priority research program at the Institute of Modern Physics, Chinese Academy of Sciences (IMP/CAS).

doi: 10.1140/epja/s10050-022-00811-w
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2022GU04      Phys.Lett. B 828, 137010 (2022)

S.Guo, X.H.Zhou, C.M.Petrache, E.A.Lawrie, S.H.Mthembu, Y.D.Fang, H.Y.Wu, H.L.Wang, H.Y.Meng, G.S.Li, Y.H.Qiang, J.G.Wang, M.L.Liu, Y.Zheng, B.Ding, W.Q.Zhang, A.Rohilla, K.R.Muhki, Y.Y.Yang, H.J.Ong, J.B.Ma, S.W.Xu, Z.Bai, H.L.Fan, J.F.Huang, J.H.Li, J.H.Xu, B.F.Lv, W.Hua, Z.G.Gan, Y.H.Zhang

Probing the nature of the conjectured low-spin wobbling bands in atomic nuclei

NUCLEAR REACTIONS 175Lu(18O, 6n)187Au, E=108 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, partial level scheme, B(M1)/B(E2), polarization, mixing ratios, low-spin wobbling bands. The Heavy Ion Research Facility in Lanzhou (HIRFL), China.

doi: 10.1016/j.physletb.2022.137010
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2022GU07      Phys.Rev.Lett. 128, 242502 (2022)

S.Guo, B.Ding, X.H.Zhou, Y.B.Wu, J.G.Wang, S.W.Xu, Y.D.Fang, C.M.Petrache, E.A.Lawrie, Y.H.Qiang, Y.Y.Yang, H.J.Ong, J.B.Ma, J.L.Chen, F.Fang, Y.H.Yu, B.F.Lv, F.F.Zeng, Q.B.Zeng, H.Huang, Z.H.Jia, C.X.Jia, W.Liang, Y.Li, N.W.Huang, L.J.Liu, Y.Zheng, W.Q.Zhang, A.Rohilla, Z.Bai, S.L.Jin, K.Wang, F.F.Duan, G.Yang, J.H.Li, J.H.Xu, G.S.Li, M.L.Liu, Z.Liu, Z.G.Gan, M.Wang, Y.H.Zhang

Probing 93mMo Isomer Depletion with an Isomer Beam

RADIOACTIVITY 93Mo(IT) [from 12C(86Kr, 5n), E=559 MeV]; measured decay products, Eγ, Iγ; deduced γ-ray energies and relative intensities, lack of isomer depletion, excitation probability. Comparison with available data. Nuclear excitation by electron capture (NEEC).

doi: 10.1103/PhysRevLett.128.242502
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2022HU12      Phys.Lett. B 834, 137484 (2022)

M.H.Huang, Z.G.Gan, Z.Y.Zhang, L.Ma, J.G.Wang, M.M.Zhang, H.B.Yang, C.L.Yang, X.Y.Huang, Z.Zhao, S.Y.Xu, L.X.Chen, X.J.Wen, Y.F.Niu, C.X.Yuan, Y.L.Tian, Y.S.Wang, J.Y.Wang, M.L.Liu, Y.H.Qiang, W.Q.Yang, H.B.Zhang, Z.W.Lu, S.Guo, W.X.Huang, Y.He, Z.Z.Ren, S.G.Zhou, X.H.Zhou, H.S.Xu, V.K.Utyonkov, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov

α decay of the new isotope 204Ac

RADIOACTIVITY 204,205Ac(α) [from 169Tm(40Ca, xn), E=202, 210, 212, 214 MeV using SHANS2 separator at CAFE2 and SHANS separator at HRIFL, Lanzhou accelerator facility]; 200Fr, 196At(α) [from 204Ac α-decay chain]; measured evaporation residues (ERs), Eα, (ER)α-α-α correlated events, production cross sections, T1/2 of decays using two multiwire proportional counters for implanted events, double-sided silicon strip detectors (DSSSDs) for α particles, and a segmented clover Ge detector for γ radiation. 204,205Ac, 200Fr, 196At; deduced T1/2 of decays of ground-state decays, and Eα values, reduced α-width in Rasmussen formalism, favored α decay for 204Ac decay. 204Ac(p); no proton decay events observed. 201,201m,202,202m,203,204,205Fr, 204,205,206Ra(α); observed α spectra, (ERs)-α-α-correlated events. Comparison with previous available experimental results. Systematics of experimental and theoretical T1/2 and Q(α) values for 196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211At, 198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213Fr, 203,204,205,206,207,208,209,210,211,212,213,214,215Ac, 211,212,213,214,215,216,217Pa, using Hartree-Fock-BCS (HFBSC) method, and macroscopic-microscopic (MM) mass formula for theory.

doi: 10.1016/j.physletb.2022.137484
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2022MA45      Phys.Rev. C 106, 064316 (2022)

L.Ma, H.B.Yang, Z.Y.Zhang, J.C.Pei, M.H.Huang, M.M.Zhang, C.Y.Qiao, X.J.Bao, Y.L.Tian, C.L.Yang, Y.S.Wang, Z.Zhao, X.Y.Huang, S.Y.Xu, W.X.Huang, Z.Liu, X.H.Zhou, Z.G.Gan

Attempts to produce new americium isotopes near N=126

NUCLEAR REACTIONS 191,193Ir(40Ar, xn)231Am*/233Am*, E=190-204 MeV; measured reaction products, Eα, (recoils)α-α-α correlated events, using SHANS gas-filled recoil separator, 16 position-sensitive Si-strip detectors (PSSDs) for evaporation residues, and eight side silicon detectors (SSDs) for α particles at the HRIFL-Lanzhou facility. 226,227,228Am; no evidence found for the detection of these nuclides, with upper limits of cross sections determined for the production of the compound nuclei of 231Am and 233Am; discussed nonobservation of new americium isotopes in terms of reduced survival probabilities of compound nuclei 231Am and 233Am due to their low fission barriers at high excitations.

NUCLEAR STRUCTURE 226,227,228,229Am; calculated excitation functions for the production of these nuclides in 191,193Ir(40Ar, xn) using the statistical model code HIVAP. 230,231,232,233,234,235,236Am; evaluated shell correction energies and fission barriers from FRDM2012, KTUY2005, and WS2010. 226U, 227Np, 231,233Am; calculated fission barrier heights as functions of excitation energy and quadrupole deformation parameter β2 using microscopic finite-temperature Skyrme Hartree-Fock+BCS theory.

doi: 10.1103/PhysRevC.106.034316
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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
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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
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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
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2022YA15      Phys.Rev. C 105, L051302 (2022)

H.B.Yang, Z.G.Gan, Z.Y.Zhang, M.H.Huang, L.Ma, M.M.Zhang, C.X.Yuan, Y.F.Niu, C.L.Yang, Y.L.Tian, L.Guo, Y.S.Wang, J.G.Wang, H.B.Zhou, X.J.Wen, H.R.Yang, X.H.Zhou, Y.H.Zhang, W.X.Huang, Z.Liu, S.G.Zhou, Z.Z.Ren, H.S.Xu, V.K.Utyonkov, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov, D.I.Solovyev

New isotope 207Th and odd-even staggering in α-decay energies for nuclei with Z > 82 and N < 126

RADIOACTIVITY 207Th(α)[from 176Hf(36Ar, 5n), E=197-199 MeV]; 208Th(α)[from 176Hf(36Ar, 4n), E=197-199 MeV]; 203Ra, 199Rn, 195Po(α)[from 207Th α-decay chain]; 204Ra, 200Rn, 196Po(α)[from 208Th α-decay chain]; measured evaporation residues (ERs), Eα, and ER-α1234 correlated α-decay chain from the decays of 207Th and208Th. 207,208Th; deduced α-decay T1/2, production σ. Z=84-92, N=102-126; discussed systematics of experimental and theoretically calculated (by relativistic Hartree-Fock-Bogoliubov and large-scale shell-model approaches) odd-even staggering (OES) of Q(α), Q(proton) and Q(neutron). Position-sensitive silicon strip detectors (PSSDs), non-position sensitive Si detectors, and SHANS gas-filled recoil separator at the sector focusing cyclotron facility of HIRFL, Lanzhou.

doi: 10.1103/PhysRevC.105.L051302
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2022YA27      Phys.Rev. C 106, 064311 (2022)

H.B.Yang, Z.G.Gan, Z.Y.Zhang, M.H.Huang, L.Ma, M.M.Zhang, C.L.Yang, Y.L.Tian, Y.S.Wang, H.B.Zhou, X.J.Wen, J.G.Wang, Z.Zhao, S.Y.Xu, L.X.Chen, X.Y.Huang, C.X.Yuan, Y.F.Niu, H.R.Yang, W.X.Huang, Z.Liu, X.H.Zhou, Y.H.Zhang, S.G.Zhou, Z.Z.Ren, H.S.Xu, V.K.Utyonkov, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov, D.I.Solovyev

Examining the impact of α-decay energies on the odd-even staggering in half-lives: α-decay spectroscopy of 207-209Ac

RADIOACTIVITY 207,208,208m,209Ac(α)[from 176Hf(36Ar, X), E=197-199 MeV]; measured evaporation residues (ER), Eα, Iα, αα-coin, (ER)αα-coin; deduced T1/2, Q values, decay branches. 204mFr(IT) [from 208Ac(α)]; deduced T1/2, isomer level energy, tentative J and π for the newly found 80-keV isomer. 204Fr(α)[from 208,208mAc(α)]; deduced T1/2. Found new α-decay branching 208Ac and assigned to the transition from ground state to the excited (2+, 4+) state. Comparison to the calculations performed in the framework of Wentzel-Kramers-Brillouin approximation. Spectrometer for Heavy Atoms and Nuclear Structure (SHANS) at Sector Focusing Cyclotron of the Heavy Ion Research Facility in Lanzhou (HIRFL).

doi: 10.1103/PhysRevC.106.064311
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2022ZE02      Phys.Rev. C 106, 034307 (2022)

Q.B.Zeng, S.Guo, Z.Liu, J.G.Li, H.H.Li, J.G.Wang, Z.Y.Zhang, L.Ma, Y.H.Qiang, M.H.Huang, G.S.Li, Y.D.Fang, M.L.Liu, B.Ding, Y.Zheng, J.H.Li, H.Y.Lu, W.Q.Zhang, K.L.Wang, X.Y.Liu, H.Huang, F.F.Zeng, X.H.Yu, A.Rohilla, J.F.Huang, H.L.Fan, C.Qi, C.X.Yuan, C.M.Petrache, E.A.Lawrie, W.Zuo, Z.G.Gan, X.H.Zhou

Configurations of the low-lying states in 146Eu

RADIOACTIVITY 146mEu(IT) [from 124Sn(27Al, 5n), E=127 MeV, followed by mass-separation of evaporation residues (ERs) using the SHANS separator at the Sector-Focusing Cyclotron (SFC) of HIRFL-Lanzhou]; measured Eγ, Iγ, γγ-coin, isomer and level T1/2 by γ(t) and γγ(t) fast-timing method using three LaBr3(Ce) detectors, one coaxial and one Clover HPGe detectors, and analyzed using mirror symmetric centroid difference (MSCD) method. 146Eu; deduced levels, J, π, T1/2 of 6- levels and a 9+ isomer, multipolarities, upper limits of multipole mixing ratios, B(M1), spherical configurations. 146Sm; measured level T1/2 of the first 2+ state as a test case for measurements of short half-lives for levels in 146Eu. Comparison with shell model calculations using several different effective interactions, and with previous experimental results. Systematics of levels and B(M1) values in N=83 isotones 142Pr, 144Pm, 146Eu.

doi: 10.1103/PhysRevC.106.034307
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2022ZH07      Phys.Rev. C 105, 024328 (2022)

H.B.Zhou, Z.Y.Li, Z.G.Gan, Z.Y.Zhang, H.Yao, N.Wang, H.B.Yang, L.Ma, M.H.Huang, C.L.Yang, M.M.Zhang, Y.L.Tian, Y.S.Wang, X.H.Zhou, J.L.Tian

Modeling the fusion process with a modified Woods-Saxon potential in 40Ar-induced fusion reactions

NUCLEAR REACTIONS 176Hf(40Ar, 2np)212Ac, (40Ar, 3np)213Ac, (40Ar, 2nα)209Ra, (40Ar, 3nα)210Ra, E=183, 190 MeV; measured reaction products, Eα, Iα; deduced σ(E), theory evaluation factors. Observed α peaks from decays of 211,212,213,213Ra, 214,215Ac. Comparison to density-constrained time-dependent Hartree-Fock theory calculations. Beam from Sector-Focusing Cyclotron of the Heavy Ion Research Facility in Lanzhou (HIRFL). 165Ho(40Ar, 4n), E(cm)=130-160 MeV; 169Tm(40Ar, 4n), E(cm)=130-170 MeV; 174Yb(40Ar, 4n), (40Ar, 5n), E(cm)=130-170 MeV; 175Lu(40Ar, 4n), (40Ar, 5n), E(cm)=130-170 MeV; 176Hf(40Ar, 4n), (40Ar, 5n), E(cm)=135-165 MeV; 181Ta(40Ar, 4n), E(cm)=130-160 MeV; analyzed σ(E) from 1984VE09.

doi: 10.1103/PhysRevC.105.024328
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2022ZH45      Phys.Rev. C 106, 024305 (2022)

M.M.Zhang, Y.L.Tian, Y.S.Wang, Z.Y.Zhang, Z.G.Gan, H.B.Yang, M.H.Huang, L.Ma, C.L.Yang, J.G.Wang, C.X.Yuan, C.Qi, A.N.Andreyev, X.Y.Huang, S.Y.Xu, Z.Zhao, L.X.Chen, J.Y.Wang, M.L.Liu, Y.H.Qiang, G.S.Li, W.Q.Yang, R.F.Chen, H.B.Zhang, Z.W.Lu, X.X.Xu, L.M.Duan, H.R.Yang, W.X.Huang, Z.Liu, X.H.Zhou, Y.H.Zhang, H.S.Xu, N.Wang, H.B.Zhou, X.J.Wen, S.Huang, W.Hua, L.Zhu, X.Wang, Y.C.Mao, X.T.He, S.Y.Wang, W.Z.Xu, H.W.Li, Y.F.Niu, L.Guo, Z.Z.Ren, S.G.Zhou

Fine structure in the α decay of the 8+ isomer in 216, 218U

RADIOACTIVITY 216,216m,218,218mU(α)[218U from 182W(40Ar, 4n), E=190 MeV, 184W(40Ca, 2nα), E=206 MeV, 216U from 180W(40Ar, 4n), E=191 MeV]; measured evaporation residues (EVRs), Eα, Iα, (EVR)α12-correlations, T1/2 using position-sensitive strip detectors (PSSDs) for α detection, and SHANS separator at HIRFL-Lanzhou. 216,216m,218,218mU; deduced T1/2, Q-values, α-branching ratio, α-decay hindrance factors. 204Rn, 208,210Ra, 212,214Th(α)[from 216,218U α-decay chains]; measured Eα, T1/2. 212Th; deduced level, J, π, identification of the first 2+ state. 215Ra, 212,213,216Ac, 211,212,213,214,216,216m,217Th, 216,217,217m,218Pa, 217,218,219U; observed Eα from their decays from (EVR)α-correlations. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.106.024305
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2021MA66      Phys.Rev. C 104, 044310 (2021)

L.Ma, Z.Y.Zhang, H.B.Yang, M.H.Huang, M.M.Zhang, Y.L.Tian, C.L.Yang, Y.S.Wang, Z.Zhao, W.X.Huang, Z.Liu, X.H.Zhou, Z.G.Gan

α-decay properties of 220Pa

RADIOACTIVITY 220,220mPa(α)[from 187Re(40Ar, 3nα), E=198.7 MeV]; 216Ac(α)[from 220Pa(α)]; measured Eα, Iα, half-lives of decays of 220,220mPa using position-sensitive 16-strip detectors (PSSDs) at the Sector-Focusing Cyclotron and SHANS recoil separator of HIRF-Lanzhou. 220Pa, 216Ac; deduced levels, J, π, Q(α), reduced α-width, new isomer in 220Pa. Comparison with previous experimental data. Systematics of reduced α widths of N=129, Z=84-93 isotones.

doi: 10.1103/PhysRevC.104.044310
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2021ZH22      Phys.Rev.Lett. 126, 152502 (2021)

Z.Y.Zhang, H.B.Yang, M.H.Huang, Z.G.Gan, C.X.Yuan, C.Qi, A.N.Andreyev, M.L.Liu, L.Ma, M.M.Zhang, Y.L.Tian, Y.S.Wang, J.G.Wang, C.L.Yang, G.S.Li, Y.H.Qiang, W.Q.Yang, R.F.Chen, H.B.Zhang, Z.W.Lu, X.X.Xu, L.M.Duan, H.R.Yang, W.X.Huang, Z.Liu, X.H.Zhou, Y.H.Zhang, H.S.Xu, N.Wang, H.B.Zhou, X.J.Wen, S.Huang, W.Hua, L.Zhu, X.Wang, Y.C.Mao, X.T.He, S.Y.Wang, W.Z.Xu, H.W.Li, Z.Z.Ren, S.G.Zhou

New α-Emitting Isotope 214U and Abnormal Enhancement of α-Particle Clustering in Lightest Uranium Isotopes

RADIOACTIVITY 214,216,218U(α) [from 180,182W(36Ar, 4n), 184W(40Ca, 2nα), E<200 MeV]; measured decay products, Eα, Iα; deduced α-decay Q-values and reduced widths, T1/2, abnormal enhancement by the strong monopole interaction between the valence protons and neutrons. Comparison withavailable data, calculations.

doi: 10.1103/PhysRevLett.126.152502
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2021ZH24      Phys.Rev. C 103, 044314 (2021)

H.B.Zhou, Z.G.Gan, N.Wang, H.B.Yang, L.Ma, M.H.Huang, C.L.Yang, M.M.Zhang, Y.L.Tian, Y.S.Wang, Z.Y.Li, C.X.Yuan, S.Huang, X.J.Sun, H.Y.Peng, L.Ou, X.H.Zhou

Lifetime measurement for the isomeric state in 213Th

NUCLEAR REACTIONS 176Hf(40Ar, xn)213Th/214Th/215Th, E=183, 190 MeV beam from Sector-Focusing Cyclotron of HIRFL-Lanzhou facility, followed by the separation of evaporation residues (ERs) by the SHANS separator and implanted in three position-sensitive silicon strip detectors (PSSDs); measured position, time, and energy of the ERs, Eα, Iα, Eγ, Iγ, (ER)α-, (ER)γ- and (ER)αγ-correlated events. Enriched target. 213,214,215Th; deduced levels, J, π, isomers, half-lives of the isomers in 213,214,215Th. Comparison with previous experimental results for isomer half-lives. Systematics of 13/2+ isomers in N=123 isotones 207Po, 209Rn, 211Ra and 213Th.

RADIOACTIVITY 209,210,211,213Ra, 212,213,215Ac, 211,212,213,214,215,216Th(α)[from 176,177,178,179,180Hf(40Ar, xnyp), E=183, 190 MeV, enriched 176Hf with small abundance of other Hf isotopes]; measured Eα, Iα, αγ-correlations.

doi: 10.1103/PhysRevC.103.044314
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2020MA27      Phys.Rev.Lett. 125, 032502 (2020)

L.Ma, Z.Y.Zhang, Z.G.Gan, X.H.Zhou, H.B.Yang, M.H.Huang, C.L.Yang, M.M.Zhang, Y.L.Tian, Y.S.Wang, H.B.Zhou, X.T.He, Y.C.Mao, W.Hua, L.M.Duan, W.X.Huang, Z.Liu, X.X.Xu, Z.Z.Ren, S.G.Zhou, H.S.Xu

Short-Lived α-Emitting Isotope 222Np and the Stability of the N = 126 Magic Shell

NUCLEAR REACTIONS 187Re(40Ar, 5N)222Np, E=198.7 MeV; measured reaction products, Eα, Iα. 220Pa, 219Th; deduced Q-values, T1/2. Comparison with systematics.

doi: 10.1103/PhysRevLett.125.032502
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2020SU02      Phys.Lett. B 800, 135096 (2020)

M.D.Sun, Z.Liu, T.H.Huang, W.Q.Zhang, A.N.Andreyev, B.Ding, J.G.Wang, X.Y.Liu, H.Y.Lu, D.S.Hou, Z.G.Gan, L.Ma, H.B.Yang, Z.Y.Zhang, L.Yu, J.Jiang, K.L.Wang, Y.S.Wang, M.L.Liu, Z.H.Li, J.Li, X.Wang, A.H.Feng, C.J.Lin, L.J.Sun, N.R.Ma, W.Zuo, H.S.Xu, X.H.Zhou, G.Q.Xiao, C.Qi, F.S.Zhang

Fine structure in the α decay of 223U

RADIOACTIVITY 223U, 219Th, 215Ra(α) [from 187Re(40Ar, 3np), E=188 MeV]; measured reaction products, Eα, Iα; deduced α-decay branches, fine structure.

doi: 10.1016/j.physletb.2019.135096
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2020WA16      Nucl.Instrum.Methods Phys.Res. A971, 164068 (2020)

X.Wang, Z.H.Li, Z.Liu, J.Li, H.Hua, H.Y.Lu, W.Q.Zhang, T.H.Huang, M.D.Sun, J.G.Wang, X.Y.Liu, B.Ding, Z.G.Gan, L.Ma, H.B.Yang, Z.Y.Zhang, L.Yu, J.Jiang, K.L.Wang, Y.S.Wang, M.L.Liu, C.J.Lin, L.J.Sun, N.R.Ma, H.S.Xu, X.H.Zhou, G.Q.Xiao, H.Y.Wu, C.Xu, S.Q.Zhang, X.Q.Li, R.Han, Z.Q.Chen, C.G.Wu, D.W.Luo, Y.Jin, J.Lin, D.X.Jiang, Y.L.Ye, F.S.Zhang

An effective digital pulse processing method for pile-up pulses in decay studies of short-lived nuclei

RADIOACTIVITY 219Th(α), 210,211Ra(IT) [from 175Lu, 186W, 187Re(40Ar, X), E=188 MeV]; measured decay products, Eα, Iα; deduced α spectra, proper baseline correction, standard pulse construction and plateau-region fitting, spectroscopic information of overlapping signals.

doi: 10.1016/j.nima.2020.164068
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2020ZH01      Phys.Lett. B 800, 135102 (2020)

M.M.Zhang, H.B.Yang, Z.G.Gan, Z.Y.Zhang, M.H.Huang, L.Ma, C.L.Yang, C.X.Yuan, Y.S.Wang, Y.L.Tian, H.B.Zhou, S.Huang, X.T.He, S.Y.Wang, W.Z.Xu, H.W.Li, X.X.Xu, J.G.Wang, H.R.Yang, L.M.Duan, W.Q.Yang, S.G.Zhou, Z.Z.Ren, X.H.Zhou, H.S.Xu, A.A.Voinov, Yu.S.Tsyganov, A.N.Polyakov, M.V.Shumeiko

A new isomeric state in 218Pa

RADIOACTIVITY 218Pa(α) [from 182W(40Ar, 3np)218Pa, E=190 MeV]; measured decay products, Eα, Iα, Eγ, Iγ; deduced ground and isomeric states T1/2, α and γ-ray energies and intensities, J, π.

doi: 10.1016/j.physletb.2019.135102
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2019YA04      Eur.Phys.J. A 55, 8 (2019)

H.B.Yang, Z.G.Gan, Z.Y.Zhang, M.M.Zhang, M.H.Huang, L.Ma, C.L.Yang

A digital pulse fitting method for the α decay studies of short-lived nuclei

RADIOACTIVITY 217Ra, 218Ac, 219,221Th, 220Pa(α) [from 184W(40Ca, X), E=206 MeV, followed by separation of fragments using SHANS separator at Lanzhou accelerator facility]; measured decay products, Iα, Eα; deduced T1/2.

RADIOACTIVITY 214Fr, 215,216Ac, 215Ra, 216,216m,217Th, 218Pa(α); measured decay products, Iα, Eα; deduced α-decay properties.

doi: 10.1140/epja/i2019-12684-7
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2019ZH23      Phys.Rev.Lett. 122, 192503 (2019)

Z.Y.Zhang, Z.G.Gan, H.B.Yang, L.Ma, M.H.Huang, C.L.Yang, M.M.Zhang, Y.L.Tian, Y.S.Wang, M.D.Sun, H.Y.Lu, W.Q.Zhang, H.B.Zhou, X.Wang, C.G.Wu, L.M.Duan, W.X.Huang, Z.Liu, Z.Z.Ren, S.G.Zhou, X.H.Zhou, H.S.Xu, Yu.S.Tsyganov, A.A.Voinov, A.N.Polyakov

New Isotope 220Np: Probing the Robustness of the N=126 Shell Closure in Neptunium

RADIOACTIVITY 220Np, 216Pa, 212Ac, 208Fr(α) [from 185Re(40Ar, 5n)220Np/216Pa/212Ac/208Fr, E=201 MeV]; measured decay products, Eα, Iα; deduced T1/2, Q-values. Comparison with systematics.

doi: 10.1103/PhysRevLett.122.192503
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2019ZH54      Phys.Rev. C 100, 064317 (2019)

M.M.Zhang, Y.L.Tian, Y.S.Wang, X.H.Zhou, Z.Y.Zhang, H.B.Yang, M.H.Huang, L.Ma, C.L.Yang, Z.G.Gan, J.G.Wang, H.B.Zhou, S.Huang, X.T.He, S.Y.Wang, W.Z.Xu, H.W.Li, X.X.Xu, L.M.Duan, Z.Z.Ren, S.G.Zhou, H.S.Xu

Fine structure in the α decay of 219U

RADIOACTIVITY 219U(α)[from 183W(40Ar, 4n), E=190 MeV]; measured Eα, Iα, αα-coin, (recoils)ααα-correlations, half-life of 219U decay, production σ of 219U using position-sensitive strip detectors (PSSDs) for α detection, and the SHANS separator at the Heavy Ion Research Facility (HIRFL) in Lanzhou. 215Th; deduced levels, J, π, α-branching ratios, α-decay reduced widths. 216,216m,217,219Th, 220Pa(α)[from 183W(40Ar, X), E=190 MeV]; 215Th, 211Ra[from 219U α decay]; measured Eα, half-lives of decays of the isotopes. Discussed α-decay systematics in neighboring nuclides. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.100.064317
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2018HU13      Phys.Rev. C 98, 044302 (2018)

T.H.Huang, W.Q.Zhang, M.D.Sun, Z.Liu, J.G.Wang, X.Y.Liu, B.Ding, Z.G.Gan, L.Ma, H.B.Yang, Z.Y.Zhang, L.Yu, J.Jiang, K.L.Wang, Y.S.Wang, M.L.Liu, Z.H.Li, J.Li, X.Wang, H.Y.Lu, A.H.Feng, C.J.Lin, L.J.Sun, N.R.Ma, D.X.Wang, F.S.Zhang, W.Zuo, X.H.Zhou, H.S.Xu, G.Q.Xiao

Identification of the new isotope 224Np

NUCLEAR REACTIONS 187Re(40Ar, 3n)224Np, E=188 MeV; measured evaporation residues (ERs), Eα, Iα of decaying ERs, production σ using SHANS separator and a double-sided silicon strip detector for α detection at SFC-HIRFL, Lanzhou; deduced evidence for the production of new isotope 224Np through the observation of six correlated α-decay chains, starting from 224Np to 212Fr.

RADIOACTIVITY 224Np, 220Pa, 220mPa, 216Ac(α)[from 187Re(40Ar, 3n)224Np, E=188 MeV, and successive α decays]; measured Eα, Iα, half-lives, αα-correlations. 220Pa, 216Ac, 212Fr; deduced levels, isomer in 220Pa.

doi: 10.1103/PhysRevC.98.044302
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2018YA01      Phys.Lett. B 777, 212 (2018)

H.B.Yang, L.Ma, Z.Y.Zhang, C.L.Yang, Z.G.Gan, M.M.Zhang, M.H.Huang, L.Yu, J.Jiang, Y.L.Tian, Y.S.Wang, J.G.Wang, Z.Liu, M.L.Liu, L.M.Duan, S.G.Zhou, Z.Z.Ren, X.H.Zhou, H.S.Xu, G.Q.Xiao

Alpha decay properties of the semi-magic nucleus 219Np

RADIOACTIVITY 219Np(α) [from 187Re(36Ar, 4n), E=191.5 MeV]; 218,218U, 215Pa(α); measured decay products, Eα, Iα; deduced α-particle energy, T1/2, Q-value. Comparison with available data.

doi: 10.1016/j.physletb.2017.12.017
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2017HU08      Phys.Rev. C 96, 014324 (2017)

T.H.Huang, W.Q.Zhang, M.D.Sun, Z.Liu, J.G.Wang, X.Y.Liu, B.Ding, Z.G.Gan, L.Ma, H.B.Yang, Z.Y.Zhang, L.Yu, J.Jiang, K.L.Wang, Y.S.Wang, M.L.Liu, Z.H.Li, J.Li, X.Wang, H.Y.Lu, C.J.Lin, L.J.Sun, N.R.Ma, Z.Z.Ren, F.S.Zhang, W.Zou, X.H.Zhou, H.S.Xu, G.Q.Xiao

α-decay chain of the short-lived isotope 220Pa established using a digital pulse processing technique

RADIOACTIVITY 220Pa(α)[from 187Re(40Ar, 3nα), E=188 MeV at HIRFL-Lanzhou facility]; 216Ac(α)[from 220Pa parent decay]; measured Eα, (evaporation residue)α-correlated events using the digital pulse processing technique, half-lives of decays of 220Pa and 216Ac; deduced J, π of the ground state of 220Pa, and reduced α-decay width. Comparison with previous experimental Eα and T1/2 for 220Pa.

doi: 10.1103/PhysRevC.96.014324
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2017SU18      Phys.Lett. B 771, 303 (2017)

M.D.Sun, Z.Liu, T.H.Huang, W.Q.Zhang, J.G.Wang, X.Y.Liu, B.Ding, Z.G.Gan, L.Ma, H.B.Yang, Z.Y.Zhang, L.Yu, J.Jiang, K.L.Wang, Y.S.Wang, M.L.Liu, Z.H.Li, J.Li, X.Wang, H.Y.Lu, C.J.Lin, L.J.Sun, N.R.Ma, C.X.Yuan, W.Zuo, H.S.Xu, X.H.Zhou, G.Q.Xiao, C.Qi, F.S.Zhang

New short-lived isotope 223Np and the absence of the Z = 92 subshell closure near N = 126

RADIOACTIVITY 223Np, 219Pa, 219Th, 218Ac, 216Ra, 215Ac(α) [from 187Re(40Ar, X)223Np, E=188 MeV]; measured decay products, Eα, Iα; deduced T1/2, Q-values, disprove the existence of a Z=92 subshell closure. Comparison with available data.

doi: 10.1016/j.physletb.2017.03.074
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2015MA37      Phys.Rev. C 91, 051302 (2015)

L.Ma, Z.Y.Zhang, Z.G.Gan, H.B.Yang, L.Yu, J.Jiang, J.G.Wang, Y.L.Tian, Y.S.Wang, S.Guo, B.Ding, Z.Z.Ren, S.G.Zhou, X.H.Zhou, H.S.Xu, G.Q.Xiao

α-decay properties of the new isotope 216U

RADIOACTIVITY 216,216m,218,218mU(α)[from 180W(40Ar, xn), E=189.5 MeV]; measured evaporation residues (ER), Eα, Iα, correlated ER-α1-α2 events, α-decay half-lives using SHANS spectrometer at HIRFL-Lanzhou facility; deduced 216U new isotope and its isomeric state, and α-reduced widths. 212,214Th, 208,210Ra(α); measured Eα, Iα, α-decay half-lives, α-reduced widths. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.91.051302
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2015SU09      Phys.Rev. C 92, 024309 (2015)

M.Sugawara, T.Hayakawa, M.Oshima, Y.Toh, A.Osa, M.Matsuda, T.Shizuma, Y.Hatsukawa, H.Kusakari, T.Morikawa, Z.G.Gan, T.Czosnyka

Lifetime measurement for the possible antimagnetic rotation band in 101Pd

NUCLEAR REACTIONS 68Zn(37Cl, 3np), E=125 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by Doppler broadened line shape method using GEMINI array at JAEA accelerator facility. 101Pd; deduced high-spin levels, B(E2) for transitions in νh11/2 band, moment of inertia plot, configuration, possible antimagnetic rotational band. Comparison with semiclassical particle-rotor model calculations, and with systematics of B(E2) values for bands in 100,102,104Pd, 106,108,110Cd.

doi: 10.1103/PhysRevC.92.024309
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2015YA13      Eur.Phys.J. A 51, 88 (2015)

H.B.Yang, Z.Y.Zhang, J.G.Wang, Z.G.Gan, L.Ma, L.Yu, J.Jiang, Y.L.Tian, B.Ding, S.Guo, Y.S.Wang, T.H.Huang, M.D.Sun, K.L.Wang, S.G.Zhou, Z.Z.Ren, X.H.Zhou, H.S.Xu, G.Q.Xiao

Alpha decay of the new isotope 215U

RADIOACTIVITY 215U(α)[from 180W(40Ar, 5n)]; measured sequential α emission Eα, Iα(t), αα-coin; deduced α-decay energy, T1/2.

NUCLEAR REACTIONS 180W(40Ar, 5n), E=205.5 MeV; measured reaction products; deduced σ. 180W(40Ar, xn), E=170-220 MeV; calculated σ for x=3-6 using HIVAP code. Compared with one other experimental point.

doi: 10.1140/epja/i2015-15088-9
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2014ZH03      Phys.Rev. C 89, 014308 (2014)

Z.Y.Zhang, Z.G.Gan, L.Ma, L.Yu, H.B.Yang, T.H.Huang, G.S.Li, Y.L.Tian, Y.S.Wang, X.X.Xu, X.L.Wu, M.H.Huang, C.Luo, Z.Z.Ren, S.G.Zhou, X.H.Zhou, H.S.Xu, G.Q.Xiao

α decay of the new neutron-deficient isotope 205Ac

RADIOACTIVITY 205,206Ac(α)[from 169Tm(40Ca, 4n), (40Ca, 3n), E=196 MeV, and subsequent α decays]; measured Eα, Iα, (evaporation residues)αα-correlations, half-lives, production σ using gas-filled separator SHANS at HIRFL-Lanzhou facility; discussed J, π of parent states. 198At, 202Fr(α); measured Eα, half-lives. Comparison with previous measurements. 200Po, 201,202,202m,203At, 202,203,204,205,206Fr, 203,204,205Rn, 205Ra, 205mRa(α); observed Eα, (evaporation residues)α-correlations. 205,206,207,208,209,210,211,212,213,214,215Ac; systematics of Q(α) and half-lives.

doi: 10.1103/PhysRevC.89.014308
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2013SU15      Phys.Rev. C 87, 064319 (2013)

M.Sugawara, T.Hayakawa, M.Oshima, Y.Toh, A.Osa, M.Matsuda, T.Shizuma, Y.Hatsukawa, H.Kusakari, T.Morikawa, Z.G.Gan, T.Czosnyka

Possible band termination in 99Rh

NUCLEAR REACTIONS 68Zn(37Cl, 2nα), E=125 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO) using GEMINI array at JAEA facility. 99Rh; deduced high-spin levels, J, π, bands, multipolarity, B(M1)/B(E2), configurations, alignments, E-GOS curves, possible band termination. 68Zn, 101,102Ag, 100,101,102Pd; observed prompt γ rays. Comparison with band structures of neighboring nuclides of 101,103Rh, 98,99,100Ru, 95,96,97Tc.

doi: 10.1103/PhysRevC.87.064319
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2012SU18      Phys.Rev. C 86, 034326 (2012)

M.Sugawara, T.Hayakawa, M.Oshima, Y.Toh, A.Osa, M.Matsuda, T.Shizuma, Y.Hatsukawa, H.Kusakari, T.Morikawa, Z.G.Gan, T.Czosnyka

Possible antimagnetic rotational band and neutron alignment in 101Pd

NUCLEAR REACTIONS 68Zn(37Cl, 3np), E=125 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO) using GEMINI array at JAEA facility. 101Pd; deduced levels, J, π, bands, multipolarity, B(M1)/B(E2) and B(E1)/B(E2) ratios, alignments, configurations, anti-magnetic rotational (AMR) band. 100Pd; measured Eγ; deduced alignment, configuration for a band. Comparison with particle-rotor model calculations. Systematics of alignments and band configurations in 105,106,108,109Cd nuclei.

doi: 10.1103/PhysRevC.86.034326
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2012ZH04      Chin.Phys.Lett. 29, 012502 (2012)

Z.-Y.Zhang, Z.-G.Gan, L.Ma, M.-H.Huang, T.-H.Huang, X.-L.Wu, G.-B.Jia, G.-S.Li, L.Yu, Z.-Z.Ren, S.-G.Zhou, Y.-H.Zhang, X.-H.Zhou, H.-S.Xu, H.-Q.Zhang, G.-Q.Xiao, W.-L.Zhang

Observation of the Superheavy Nuclide 271Ds

RADIOACTIVITY 271Ds(α) [from 208Pb(64Ni, n), E=313.3 MeV]; measured decay products, Eα, Iα, α-α-coin.; deduced T1/2, α-decay chain. Comparison with experimental data.

doi: 10.1088/0256-307X/29/1/012502
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2010LI32      Nucl.Phys. A834, 353c (2010)

J.-Q.Li, Z.-Q.Feng, Z.-G.Gan, X.-H.Zhou, H.-F.Zhang, W.Scheid

Production of Superheavy Nuclei in Massive fusion reactions

NUCLEAR REACTIONS 208Pb, 209Bi(48Ca, n), (50Ti, n), (54Cr, n), (58Fe, n), (64Ni, n), (70Zn, n), (76Ge, n), (82Se, n), (86Kr, n), (88Sr, n), E not given; 232Th, 238U, 237Np, 242,244Pu, 243Am, 245,248Cm, 247Bk, 249Cf, 254Es, 257Fm(48Ca, 3n), (48Ca, 4n), E not given; calculated maximum σ systematics of Z=102-120 superheavy elements using master equation within di-nuclear system model. Comparison with data.

doi: 10.1016/j.nuclphysa.2010.01.038
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2010MA69      Eur.Phys.J. A 46, 403 (2010)

L.Ma, H.F.Zhang, X.H.Zhou, Z.G.Gan, J.Q.Li, W.Scheid

Systematic study of properties of Hs nuclei

NUCLEAR STRUCTURE 257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,289,290,291,292,293,294,295,296,297,298Hs; calculated mass excess, Qα, β2, proton separation energy, two-neutron separation energy. 254,255,270Hs; calculated levels, J, π. Relativistic mean-field theory, DDDI (density-dependent delta interaction), GLDM (generalized liquid drop model). Comparison with data and other calculations.

RADIOACTIVITY 260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278Hs(α), (SF); calculated T1/2 using relativistic mean field, generalized liquid drop model. Comparison to data.

doi: 10.1140/epja/i2010-11057-2
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2008HU04      Chin.Phys.Lett. 24, 1243 (2008)

M.-H.Huang, Z.-G.Gan, Z.-Q.Feng, X.-H.Zhou, J.-Q.Li

Neutron and Proton Diffusion in Fusion Reactions for the Synthesis of Superheavy Nuclei

doi: 10.1088/0256-307X/25/4/022
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2008MA55      Int.J.Mod.Phys. E17, Supplement 1, 97 (2008)

L.Ma, H.F.Zhang, X.H.Zhou, Z.G.Gan, J.Q.Li, W.Scheid

Ground-state and alpha-decay properties of even Hs Isotopes

doi: 10.1142/S0218301308011781
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2008ZH18      Nucl.Phys. A805, 533c (2008)

W.L.Zhan, J.W.Xia, H.W.Zhao, G.Q.Xiao, Y.J.Yuan, H.S.Xu, K.D.Man, P.Yuan, D.Q.Gao, X.T.Yang, M.T.Song, X.H.Cai, X.D.Yang, Z.Y.Sun, W.X.Huang, Z.G.Gan, B.W.Wei

HIRFL Today

doi: 10.1016/j.nuclphysa.2008.02.292
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2007FE12      Chin.Phys.Lett. 24, 2551 (2007)

Z.-Q.Feng, G.-M.Jin, M.-H.Huang, Z.-G.Gan, N.Wang, J.-Q.Li

Possible Way to Synthesize Superheavy Element Z = 117

NUCLEAR REACTIONS 247,248,249Bk(48Ca, xn), 246Cm(45Sc, xn), 244Pu(51V, xn), 238U(55Mn, xn), 232Th(59Co, xn), 209Bi(76Se, n), (77Se, n), (78Se, n), (79Se, n), (80Se, n), (82Se, n), e not given; calculated cross sections and evaporation residue excitation functions within the framework of the dinuclear system model.

doi: 10.1088/0256-307X/24/9/024
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2006QI03      Yuan.Wul.Ping. 23, 400 (2006); Nucl.Phys.Rev. 23, 404 (2006)

Z.Qin, X.-l.Wu, H.-j.Ding, W.Wu, W.-x.Huang, X.-g.Lei, Y.-b.Xu, X.-h.Yuan, B.Guo, W.-f.Yang, Z.-g.Gan, H.-m.Fan, J.-S.Guo, H.-s.Xu, G.-q.Xiao

Alpha-decay Properties of 266Bh

RADIOACTIVITY 266Bh(α) [from 243Am(26Mg, X), E=162 MeV]; measured decay products, Eα, Iα, α-α correl.; deduced T1/2. Comparison with Q-N systematics.

ATOMIC MASSES 266Bh, 262Db; measured decay products, Eα, Iα, α-α correl.; deduced Q-value. Comparison with Q-N systematics.


2006ZH40      Int.J.Mod.Phys. E15, 1613 (2006)

H.F.Zhang, J.Q.Li, W.Zuo, X.H.Zhou, Z.G.Gan, N.Wang

Ground state properties of superheavy nuclei in relativistic mean field theory

NUCLEAR STRUCTURE Z=102-130; calculated binding energies. 267Db, 271Bh, 275Mt, 279Rg, 283Nh, 287Mc; calculated binding energies, radii, β2, ground-state J, π. 287Mc; calculated single-particle level energies.

doi: 10.1142/S0218301306004922
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2004GA29      Eur.Phys.J. A 20, 385 (2004)

Z.G.Gan, J.S.Guo, X.L.Wu, Z.Qin, H.M.Fan, X.G.Lei, H.Y.Liu, B.Guo, H.G.Xu, R.F.Chen, C.F.Dong, F.M.Zhang, H.L.Wang, C.Y.Xie, Z.Q.Feng, Y.Zhen, L.T.Song, P.Luo, H.S.Xu, X.H.Zhou, G.M.Jin, Z.Ren

New isotope 265Bh

NUCLEAR REACTIONS 243Am(26Mg, 4n), E=168 MeV; measured delayed (recoil)α-, αα-coin following residual nucleus decay; deduced evidence for 265Bh.

RADIOACTIVITY 264,265Bh, 261Db, 257Lr(α) [from 243Am(26Mg, 4n) and subsequent decay]; measured decay products, Eα, Iα; deduced T1/2.

doi: 10.1140/epja/i2004-10020-2
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2004GA62      High Energy Phys. and Nucl.Phys. (China) 28, 332 (2004)

Z.-G.Gan, H.-M.Fan, Z.Qin, X.-L.Wu, J.-S.Guo, X.-G.Lei, C.-F.Dong, H.-G.Xu, R.-F.Chen, F.-M.Zhang, B.Guo, H.-Y.Liu, H.-L.Wang, C.-Y.Xie, Z.-Q.Feng, Y.Zheng, L.-T.Song, P.Luo, H.-S.Xu, X.-H.Zhuo, G.-M.Jin, Z.-Z.Ren

First Observation for Isotope 265Bh(Z=107)


2004SH15      Eur.Phys.J. A 20, 207 (2004)

T.Shizuma, Z.G.Gan, K.Ogawa, H.Nakada, M.Oshima, Y.Toh, T.Hayakawa, Y.Hatsukawa, M.Sugawara, Y.Utsuno, Z.Liu

A new isomer in 136Ba populated by deep inelastic collisions

NUCLEAR REACTIONS 139La(82Se, X)136Ba, E=450 MeV; measured prompt and delayed Eγ, Iγ, γγ-coin. 136Ba deduced levels, J, π, isomer T1/2, B(E2). Comparisons with shell model predictions.

doi: 10.1140/epja/i2003-10163-6
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2004XI01      Eur.Phys.J. A 19, 7 (2004)

C.Y.Xie, X.H.Zhou, Y.Zheng, Y.H.Zhang, Z.Liu, Z.G.Gan, T.Hayakawa, M.Oshima, T.Toh, T.Shizuma, J.Katakura, Y.Hatsukawa, M.Matsuda, H.Kusakari, M.Sugawara, K.Furuno, T.Komatsubara

Level structure of 146Tb

NUCLEAR REACTIONS 118Sn(32S, 3np), E=165 MeV; measured Eγ, Iγ, γγ-, (X-ray)γ-coin. 146Tb deduced high-spin levels, J, π, configurations.

doi: 10.1140/epja/i2003-10116-1
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2003XI05      High Energy Phys. and Nucl.Phys. (China) 27, 884 (2003)

C.-Y.Xie, X.-H.Zhou, Y.Zheng, Y.-H.Zhang, Z.Liu, Q.-Y.Pan, Z.-G.Gan, T.Hayakawa, M.Oshima, T.Toh, T.Shizuma, J.Katakura, Y.Hatsukawa, M.Matsuda, H.Kusakari, M.Sugawara

Study of Level Structure in 146Tb


2003ZH50      High Energy Phys. and Nucl.Phys. (China) 27, 313 (2003)

Y.-H.Zhang, M.Oshima, T.Morikawa, T.Hayakawa, Y.Toh, X.-H.Zhou, J.-J.He, Z.Liu, Z.-G.Gan, T.Shizuma, M.Koizumi, A.Osa, J.Katakura, Y.Hatsukawa, M.Matsuda, N.Shinohara, T.Ishii, H.Kusakari, M.Sugawara, K.Furuno, T.Komatsubara, T.Une, S.-X.Wen, L.-H.Zhu, Z.-M.Wang, F.-R.Xu

Study of Signature Inversion in the πi13/2(X)νi13/2 Bands of Odd-Odd Nuclei


2002GA54      High Energy Phys. and Nucl.Phys. (China) 26, 814 (2002)

Z.-G.Gan, Z.Liu, Y.-H.Zhang, Q.-Y.Pan, M.Oshima, T.Hayakawa, Y.Toh, T.Shizima, Y.Hatsukawa, T.Ishii, M.Sugawara

A New Isomer State in 136Ba


2002GU33      J.Nucl.Radiochem.Sci. 3, No 1, 183 (2002)

J.S.Guo, Z.Qin, Z.G.Gan, H.M.Fan, Y.B.Xu, J.J.He, X.G.Lei, X.L.Wu, H.Y.Liu, X.H.Zhou, S.G.Yuan, G.M.Jin

Preparation of Thick Americium Targets and Synthesis of 259Db

NUCLEAR REACTIONS 241Am(22Ne, 4n), E=118 MeV; measured delayed Eα, αα-coin; deduced evidence for 259Db.

RADIOACTIVITY 259Db, 255Lr(α) [from 241Am(22Ne, 4n) and subsequent decay]; measured Eα, T1/2.


2002LI21      Eur.Phys.J. A 13, 277 (2002)

Z.Liu, Y.H.Zhang, X.H.Zhou, M.L.Liu, W.J.Luo, Q.Y.Pan, Z.G.Gan, T.Hayakawa, M.Oshima, Y.Toh, T.Shizima, Y.Hatsukawa, A.Osa, T.Ishii, M.Sugawara

New Yrast Excited States of the N = 84 Nucleus 142Ce Observed in Deep Inelastic Reactions

NUCLEAR REACTIONS 139La(82Se, X)142Ce, E=420 MeV; measured Eγ, γγ-coin, DCO, following deep inelastic reactions. 142Ce deduced levels, J, π, configurations. Comparison with Shell model results.

doi: 10.1007/s10050-002-8755-8
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2002LI71      High Energy Phys. and Nucl.Phys. (China) 26, 1015 (2002)

Z.Liu, Y.-H.Zhang, Y.-X.Guo, X.-H.Zhou, X.-G.Lei, M.-L.Liu, W.-J.Luo, J.-J.He, Y.Zheng, Q.-Y.Pan, Z.-G.Gan, Y.-X.Luo, T.Hayakawa, M.Oshima, Y.Toh, T.Shizima, Y.Hatsukawa, A.Osa, T.Ishii, M.Sugawara

Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus 142Ce


2002ZH26      Eur.Phys.J. A 14, 271 (2002)

Y.H.Zhang, F.R.Xu, J.J.He, Z.Liu, X.H.Zhou, Z.G.Gan, T.Hayakawa, M.Oshima, Y.Toh, T.Shizuma, J.Katakura, Y.Hatsukawa, M.Matsuda, H.Kusakari, M.Sugawara, K.Furuno, T.Komatsubara, T.Une, S.X.Wen, Z.M.Wang

Signature Inversion Phenomena in Odd-Odd 182Au

NUCLEAR REACTIONS 152Sm(35Cl, 5n), E=183 MeV; measured Eγ, Xγ, γγ-coin. 182Au deduced high-spin levels, J, π, rotational band configurations, signature inversion. Comparison with cranked mean-field calculations.

doi: 10.1140/epja/i2002-10041-9
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2001FA25      High Energy Phys. and Nucl.Phys. (China) 25, 602 (2001)

H.-M.Fan, Z.-G.Gan, Z.Qin, X.-G.Lei, Y.-B.Xu, J.-J.He, H.-Y.Liu, X.-L.Wu, J.-S.Guo, X.-H.Zhou, S.-G.Yuan, G.-M.Jin

A New Isotope of Z=105 with Mass Number 259


2001GA20      Eur.Phys.J. A 10, 21 (2001)

Z.G.Gan, Z.Qin, H.M.Fan, X.G.Lei, Y.B.Xu, J.J.He, H.Y.Liu, X.L.Wu, J.S.Guo, X.H.Zhou, S.G.Yuan, G.M.Jin

A New Alpha-Particle-Emitting Isotope 259Db

NUCLEAR REACTIONS 241Am(22Ne, 4n), (22Ne, 5n), E=118 MeV; measured Eα, αα-coin following residual nucleus decay; deduced evidence for 258,259Db.

RADIOACTIVITY 258,259Db, 254,255Lr(α) [from 241Am(22Ne, xn) and subsequent decay]; measured Eα, T1/2.

doi: 10.1007/s100500170140
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2001ZH40      Eur.Phys.J. A 12, 253 (2001)

X.H.Zhou, Y.Zheng, Y.H.Zhang, Z.Liu, Q.Y.Pan, Z.G.Gan, T.Hayakawa, M.Oshima, Y.Toh, T.Shizuma, J.Katakura, Y.Hatsukawa, M.Matsuda, H.Kusakari, M.Sugawara, K.Furuno, T.Komatsubara

In-Beam Study of 145Tb

NUCLEAR REACTIONS 118Sn(32S, 4np), E=161-175 MeV; measured Eγ, γγ-coin, DCO. 145Tb deduced high-spin levels, J, π, configurations. Comparison with particle-core coupling model results.

doi: 10.1007/s100500170001
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2000ZA13      High Energy Phys. and Nucl.Phys. (China) 24, 823 (2000)

L.Zang, Q.-Y.Hu, J.-H.Zhao, J.-W.Zheng, Z.-K.Li, S.-H.Li, Z.-G.Gan, Y.Yu, H.-M.Fan, B.Guo, T.-M.Zhang, C.-F.Wang, T.-Q.Wang, G.-M.Jin, K.Morita, A.Yoshita, Y.-H.Pu, H.Kuto, Y.Yano

γ Scheme Following 208Hg β- Decay


1999GA41      Eur.Phys.J. A 6, 59 (1999)

Z.G.Gan, Z.Qin, J.S.Guo, L.J.Shi, H.Y.Liu, T.R.Guo, X.G.Lei, R.C.Ma, W.X.Huang, S.G.Yuan, X.Q.Zhang, G.M.Jin

Decay of the Very Neutron-Deficient Isotope 131Pm

RADIOACTIVITY 131Pm(β+), (EC) [from 106Cd(32S, 4n3p), E=170 MeV]; measured Eγ, Iγ, γγ-, (X-ray)γ-coin, T1/2. 131Nd, 131Pr deduced levels.

doi: 10.1007/s100500050317
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1999PA22      Chin.Phys.Lett. 16, 251 (1999)

Q.-Y.Pan, W.-F.Yang, S.-G.Yuan, Z.-W.Li, T.-T.Ma, J.-S.Guo, M.-Y.Liu, H.-Y.Liu, S.-W.Xu, Z.-G.Gan, D.-M.Kong, J.-M.Qiao, Z.-H.Luo, M.-T.Zhang, S.-H.Wang

Evidence for Heavy Ion Emission of 230U

RADIOACTIVITY 230U(22Ne) [from 230Pa(β-) following 232Th(p, 3n)]; measured cluster decay branching ratio. Solid-state track registration detectors. Tentative cluster mass assignment.

doi: 10.1088/0256-307X/16/4/007
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1997SH21      Chin.Phys.Lett. 14, 270 (1997)

L.-J.Shi, J.-S.Guo, H.-Y.Liu, Z.-G.Gan, W.-F.Yang, W.-T.Mou, T.-R.Guo, S.-F.Shen, K.-M.Fang, S.-G.Yuan, Z.Qin, X.-Q.Zhang, R.-C.Ma, J.-Q.Zhong, S.-H.Wang, D.-M.Kong, J.-M.Qiao

Production and Assignment of a New Transuranium Neutron-Deficient Isotope 235Am

RADIOACTIVITY 235Am [from 238Pu(p, 4n), E=35 MeV]; measured X-ray, γ-ray spectra, (X-ray)γ-coin, T1/2.

NUCLEAR REACTIONS 238Pu(p, 4n), E=35 MeV; measured X-ray, γ-ray spectra, (X-ray)γ-coin; deduced evidence for 235Am.


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