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NSR database version of May 20, 2024.

Search: Author = D.D.Ni

Found 52 matches.

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2020NI01      Phys.Rev. C 101, 044308 (2020)

D.Ni, Z.Ren

Effects of nuclear collective vibrations on the α-decay fine structure of vibrational nuclei with A ≈ 220

RADIOACTIVITY 204,206,208,210,212,214,216,218,220,222Rn, 202,204,206,208,210,212,214,216,218,220,222,224,226Ra, 220,222,224,226Th, 222,224,226U(α); calculated α-branching ratio to various vibrational states, and α-decay half-lives using multichannel cluster model (MCCM). Comparison with experimental values, and with other theoretical calculations.

doi: 10.1103/PhysRevC.101.044308
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2020SH10      Chin.Phys.C 44, 054103 (2020)

X.-X.Shi, Q.Liu, D.-D.Ni, J.-Y.Guo, Z.-Z.Ren

The first excited single-proton resonance in 15F by complex-scaled Green's function method

NUCLEAR STRUCTURE 15F; calculated eigenvalues of resonant states, resonance energies and widths, level densities, phase shifts, σ using the complex-scaled Green's function (CGF) method.

doi: 10.1088/1674-1137/44/5/054103
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2019SH37      Phys.Lett. B 797, 134820 (2019)

Y.P.Shen, B.Guo, T.L.Ma, D.Y.Pang, D.D.Ni, Z.Z.Ren, Y.J.Li, Z.D.An, J.Su, J.C.Liu, Q.W.Fan, Z.Y.Han, X.Y.Li, Z.H.Li, G.Lian, Y.Su, Y.B.Wang, S.Q.Yan, S.Zeng, W.P.Liu

First experimental constraint of the spectroscopic amplitudes for the α-cluster in the 11B ground state

NUCLEAR REACTIONS 7Li(6Li, d), E=24 MeV; measured reaction products; deduced spectroscopic amplitudes (SA) for the α-cluster in the 11B ground state. Comparison with available data.

doi: 10.1016/j.physletb.2019.134820
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetS0220. Data from this article have been entered in the XUNDL database. For more information, click here.


2018DE15      J.Phys.(London) G45, 053001 (2018)

D.S.Delion, Z.Ren, A.Dumitrescu, D.Ni

Coupled channels description of the α-decay fine structure

RADIOACTIVITY 246Cf, 242Cm, 253Fm, 251Cf(α); calculated branching ratios, J, π, deformation parameters. Comparison with available data.

doi: 10.1088/1361-6471/aaac52
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2018NI12      Chin.Phys.C 42, 114104 (2018)

D.-D.Ni, Z.-Z.Ren

Theoretical research on proton halos in exotic nuclei

NUCLEAR STRUCTURE 17F, 25Al, 26,27,28P; calculated radial density probability distributions of all protons, all neutrons, the last valence proton, and nuclear matter in the Woods-Saxon potential.

doi: 10.1088/1674-1137/41/11/114104
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2017NI01      Phys.Rev. C 95, 014323 (2017)

D.Ni, Z.Ren

Competition between α and β decays for heavy deformed neutron-deficient Pa, U, Np, and Pu isotopes

RADIOACTIVITY 219,221,223,225,227Pa, 220,221,222,223,224,225,226,227,228,229U, 221,223,225,227,229,231Np, 228,229,230,231,232,233,234,235Pu(β+), (EC), (α); calculated partial half-lives for β+/EC and α-decay modes; deduced total half-lives. The β+/EC decay rates calculated within the deformed QRPA with residual particle-particle and particle-hole interaction matrix elements from Bruckner G matrix with Reid-93 NN forces. The α-decay half-lives calculated using the generalized density-dependent cluster model (GDDCM) with α-core potential from the double-folding model with M3Y effective interactions based on G matrix of Reid NN potential. Comparison with experimental values.

doi: 10.1103/PhysRevC.95.014323
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2017NI16      Chin.Phys.C 41, 114104 (2017)

D.-D.Ni, Z.-Z.Ren

Theoretical research on proton halos in exotic nuclei

NUCLEAR STRUCTURE 65As, 17F, 26,27,28P, 56,57Cu; calculated nuclear radii, radial density probability distributions, single-particle energies; deduced halo. Comparison with available data.

doi: 10.1088/1674-1137/41/11/114104
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2017TA10      Chin.Phys.C 41, 054103 (2017)

W.Tan, D.-d.Ni, Z.-z.Ren

Calculations of the β-decay half-lives of neutron-deficient nuclei

RADIOACTIVITY 42,44,46Cr, 46,48,50Fe, 48,50,52,54Ni, 56,58,60,62Zn, 60,62,64,66Ge, 64,66,68,70Se(EC), (β+); calculated T1/2. Comparison with available data.

doi: 10.1088/1674-1137/41/5/054103
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2016NI08      Phys.Rev. C 93, 054318 (2016)

D.Ni, Z.Ren

α-decay half-lives of odd-mass nuclei with differences between neutron and proton distributions

RADIOACTIVITY 151m,153mHo, 157mLu, 157m,159m,161mTa, 187m,189m,191m,193m,195mBi, 177mTl, 173mAu, 169mIr, 165mRe, 269,271Sg, 271Bh, 273,275Hs, 275Mt, 277,279,281Ds, 279,281Rg, 281,283,285Cn, 283,285Nh, 285,287,289Fl, 287,289Mc, 291,293Lv, 293Ts(α); calculated half-lives of the skin-type and halo-type, differences between neutron and proton distributions using generalized density-dependent cluster model. Comparison with experimental values.

doi: 10.1103/PhysRevC.93.054318
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2016QI07      Phys.Rev. C 94, 024315 (2016)

Y.Qian, Z.Ren, D.Ni

Reexamining cluster radioactivity in trans-lead nuclei with consideration of specific density distributions in daughter nuclei and clusters

RADIOACTIVITY 221Fr, 221,222,223,224,226Ra(14C); 228Th(20O); 230U(22Ne); 231Pa(23F); 230Th, 231Pa, 232,233,234U(24Ne); 233U(25Ne); 234U(26Ne); 234U, 236,238Pu(28Mg); 238Pu(30Mg); calculated effect of density distributions of daughter nuclei and clusters on cluster decays, ratio of the calculated half-life to that in the spherical case. Preformed cluster model, and double-folding integral of the density distributions of daughter nucleus and the emitted cluster. Comparison with available experimental data.

doi: 10.1103/PhysRevC.94.024315
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2015DE17      J.Phys.(London) G42, 075106 (2015)

D.Deng, Z.Ren, D.Ni, Y.Qian

Realistic α preformation factors of odd-A and odd-odd nuclei within the cluster-formation model

NUCLEAR STRUCTURE N=116-142; analyzed available data; deduced cluster-formation model extension, α preformation factors. Comparison with available data.

doi: 10.1088/0954-3899/42/7/075106
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2015JI07      Phys.Rev. C 91, 054617 (2015)

S.L.Jin, J.S.Wang, Y.Y.Yang, P.Ma, M.R.Huang, J.B.Ma, F.Fu, Q.Wang, M.Wang, Z.Y.Sun, Z.G.Hu, R.F.Chen, X.Y.Zhang, X.H.Yuan, X.L.Tu, Z.G.Xu, K.Yue, J.D.Chen, B.Tang, Y.D.Zang, D.P.Wu, Q.Hu, Z.Bai, Y.J.Zhou, W.H.Ma, J.Chen, C.J.Lin, X.X.Xu, Z.Z.Ren, C.Xu, D.D.Ni, Y.H.Zhang, H.S.Xu, G.Q.Xiao

Reaction mechanism of 8B breakup at the Fermi energy

NUCLEAR REACTIONS 12C(8B, 7Be), E=36 MeV/nucleon, [secondary 8B beam produced in 9Be(12C, X), E=80.1 MeV/nucleon primary reaction]; measured particle spectra, (7Be)p-coin in the breakup reactions from 8B at RIBLL-HIRFL-Lanzhou facility; deduced energy sum spectrum of the one-proton knockout residue, longitudinal momentum distributions of 7Be fragments for stripping and diffraction mechanisms. Comparison with CDCC calculations with Koning and Delaroche global parameterization.

doi: 10.1103/PhysRevC.91.054617
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2015NI10      Phys.Rev. C 92, 034324 (2015)

D.d.Ni, Z.z.Ren

β-decay rates of odd-mass neutron-rich isotopes in the deformed quasiparticle random-phase approximation with realistic interactions

RADIOACTIVITY 85,87,89,91,93,95,97,99,101Kr, 89,91,93,95,97,99,101,103,105,107Sr, 95,97,99,101,103,105,107,109,111,113Zr, 99,101,103,105,107,109,111,113,115,117Mo(β-); calculated half-lives. 91,93,101,105Sr(β-); calculated GT transition strength. Deformed quasiparticle random-phase approximation with realistic nucleon-nucleon interactions including both the GT and first-forbidden (FF) β transitions. Comparison with other theoretical calculations and with experimental values.

doi: 10.1103/PhysRevC.92.034324
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2015NI12      Phys.Rev. C 92, 054322 (2015)

D.Ni, Z.Ren

Effects of differences between neutron and proton density distributions on α-decay half-lives

RADIOACTIVITY 204,206,208,210,212,214,216,218,220,222,224,226Ra, 208,210,212,214,216,218,220,222,224,226,228,230,232Th, 218,220,222,224,226,228,230,232,234,236,238U, 246,248,250,252,254,256Fm, 252,254,256No, 256,258Rf, 260Sg, 264,266,268,270Hs, 270Ds, 286,288Fl, 290,292Lv, 294Og, 298120(α); calculated α-decay half-lives for neutron skin-type and neutron halo-type distributions; investigated effects of differences between neutron and proton distributions on α decay. Generalized density-dependent cluster model (GDDCM) with double-folding model for α-core potential. Comparison with available experimental data.

doi: 10.1103/PhysRevC.92.054322
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2015XU15      Sci. Rep. 5, 18350 (2015)

L.-Q.Xu, Y.-W.Liu, X.Kang, D.-D.Ni, K.Yang, No.Hiraoka, K.-D.Tsuei, L.-F.Zhu

The realization of the dipole (γ, γ) method and its application to determine the absolute optical oscillator strengths of helium

NUCLEAR REACTIONS He(γ, γ), E<100 eV; measured reaction products; deduced absolute dipole oscillator strengths, absolute optical oscillator strength (OOS). Comparison with available data. The Taiwan beamline BL12XU of SPring-8.

doi: 10.1038/srep18350
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2014NI01      J.Phys.(London) G41, 025107 (2014)

D.Ni, Z.Ren

β-decay rates of r-process waiting-point nuclei in the extended quasiparticle random-phase approximation

RADIOACTIVITY 62,64,66,68,70Fe, 68,70,72,74,76,78Ni, 74,76,78,80,82Zn, 122,124,126,128,130,132Cd(β-); calculated T1/2, proton-proton, neutron-neutron, neutron-proton strengths. QRPA, HFB, Bruckner G-matrix, comparison with available data.

doi: 10.1088/0954-3899/41/2/025107
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2014NI12      Phys.Rev. C 89, 064320 (2014)

D.Ni, Z.Ren

β-decay rates of neutron-rich Zr and Mo isotopes in the deformed quasiparticle random-phase approximation with realistic interactions

RADIOACTIVITY 112Mo(β-); calculated spins and excitation energies of the daughter nucleus, half-life, logft values for Gamow-Teller (GT) and first-forbidden (FF) transitions. 106Zr(β-); calculated shape factors of GT and FF transitions for oblate, spherical and prolate nuclear shapes. 104,106,108,110,112,114,116,118,120,122Mo, 98,100,102,104,106,108,110,112,114,116,118,120Zr(β-); calculated half-lives for GT and FF transitions. Deformed quasiparticle random-phase approximation (QRPA) method. Comparison with other theoretical calculations, and with experimental data.

doi: 10.1103/PhysRevC.89.064320
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2014NI17      J.Phys.(London) G41, 125102 (2014)

D.Ni, Z.Ren

β-decay rates of neutron-rich Kr and Sr isotopes in the deformed QRPA with realistic interactions

RADIOACTIVITY 92,94,98Kr, 98Sr(β-n); calculated T1/2, low-lying average shape factors for Gamow-Teller and first-forbidden transitions, β-delayed neutron emission probability. Comparison with experimental data.

doi: 10.1088/0954-3899/41/12/125102
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2014QI03      Phys.Rev. C 89, 024318 (2014)

Y.Qian, Z.Ren, D.Ni

Tentative probe into the nuclear charge radii of superheavy odd-mass and odd-odd nuclei

NUCLEAR STRUCTURE 187Hg, 191Tl, 189,191,193,195,197,201,203,209,211Pb, 203,205,209Bi, 213Fr, 147,148,149,150Tb, 151Ho, 153Tm; analyzed experimental α-decay half-life data; deduced rms nuclear charge radii using density-dependent cluster model (DDCM) combined with the two-potential approach, and the double-folding model. 257No, 255Lr, 267Rf, 262,266,268,270Db, 259,261,269Sg, 266,271,272,274Bh, 263,265,269,275Hs, 268,274,275,276,278Mt, 277,279,281Ds, 278,279,280,281,282Rg, 285Cn, 283,284,285,286Nh, 289,290Mc; deduced rms charge radii based on above formulation. Comparison with a previously proposed formula based on experimental Eα and α-decay half-life data.

doi: 10.1103/PhysRevC.89.024318
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2013NI01      Chin.Phys.Lett. 30, 022101 (2013)

D.-D.Ni, Z.-Z.Ren

Alpha-Decay Study of Unfavored Transitions in Bismuth Isotopes

RADIOACTIVITY 187,188,189,190,191,192,193,194,195,197,199,201,203,209,210,211,212,213,214Bi(α); calculated T1/2. Generalized density-dependent cluster model (GDDCM), comparison with experimental data.

doi: 10.1088/0256-307X/30/2/022101
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2013NI02      Phys.Rev. C 87, 024310 (2013)

D.Ni, Z.Ren, T.Dong, Y.Qian

Nuclear charge radii of heavy and superheavy nuclei from the experimental α-decay energies and half-lives

NUCLEAR STRUCTURE 140Ce, 142,144Nd, 144,146,148Sm, 146Gd, 148,150,152Dy, 150,152,154Er, 152,154,156,158Yb, 182W, 184,186Os, 178,180,182,184Pt, 182,184,186,188,190,206Hg, 190,192,194,196,198,200,202,204,206,208,210,212,214Pb, 200,202,204,206,208,210Po, 202,204,206,208,210,212,218,220,222Rn, 208,210,212,214,220,222,224,226,228Ra, 228,230,232Th, 234,236,238U, 238,240,242,244Pu, 242,244,246,248Cm, 242,244,246,248,250,252Cf, 248,250,252Fm, 252,254No, 256Rf, 260,262,264,266Sg, 266Hs, 282,284Cn, 286,288Fl, 290Lv; calculated rms charge radii, charge distribution using the generalized density dependent cluster model (GDDCM). A formula derived from Wentzel-Kramers-Brillouin (WKB) barrier penetration probability is proposed to calculate nuclear charge radii from the experimental α-decay energies and half-lives. Comparison with experimental data.

doi: 10.1103/PhysRevC.87.024310
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2013NI03      Phys.Rev. C 87, 027602 (2013)

D.Ni, Z.Ren

Theoretical description of fine structure in the α decay of heavy odd-odd nuclei

RADIOACTIVITY 240,242Am, 254Es(α); calculated α-decay branching ratios, fine structure to rotational bands in daughter nuclei using multichannel cluster model (MCCM), and WKB barrier penetration formula. Comparison with experimental data.

doi: 10.1103/PhysRevC.87.027602
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2013NI13      Phys.Rev. C 88, 014325 (2013)

D.Ni, Z.Ren

Coupled-channel representation to describe fine structure in the α decay of odd-mass Bk isotopes

RADIOACTIVITY 243,245,247,249Bk(α); calculated half-lives, α decay branching ratios or fine structure to rotational band members in 239,241,243,245Am using the multichannel cluster model (MCCM). Comparison with experimental data.

doi: 10.1103/PhysRevC.88.014325
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2013QI04      Phys.Rev. C 87, 054323 (2013)

Y.Qian, Z.Ren, D.Ni

Attempt to probe nuclear charge radii by cluster and proton emissions

RADIOACTIVITY 222,224,226Ra(14C); 228Th(20O); 230U(22Ne); 231Pa(23F); 230Th, 232,234U(24Ne); 233U(25Ne); 234U(26Ne); 234U, 236,238Pu(28Mg); 238Pu(30Mg), (32Si); 144,146Er, 149,150Yb, 155,156Hf, 159,160W, 163,165,166Os, 170Pt, 176Hg, 184Pb(p); calculated rms nuclear charge radii of parent nuclei from cluster and proton decay half-lives. Density-dependent cluster model. Comparison with experimental data.

NUCLEAR STRUCTURE 144,146Er, 149,150Yb, 155,156Hf, 159,160W, 163,165,166Os, 170Pt, 176Hg, 184Pb, 222,224,226Ra, 228,230Th, 230,232,233,234U, 231Pa, 238Pu; calculated rms nuclear charge radii from half-lives of cluster and proton decay of nuclei. Density-dependent cluster model. Comparison with experimental data.

doi: 10.1103/PhysRevC.87.054323
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2012CH48      J.Phys.(London) G39, 125105 (2012)

D.-D.Ni, Z.-Z.Ren

Calculations of the b-decay half-lives of neutron-rich nuclei

RADIOACTIVITY 16,18,20,22C, 22,24,26,28O, 26,28,30,32,34Ne, 30,32,34,36,38,40Mg, 34,36,38,40,42,44Si, 40,42,44,46,48S, 46,48,50,52Ar, 52,54,56,58Ca, 54,56,58,60,62Ti, 58,60,62,64,66,68Cr, 64,66,68,70,72Fe, 70,72,74,76,78Ni, 76,78,80,82Zn, 82,84,86,88Ge, 88,90,92,94Se, 92,94,96,98,100Kr, 96,98,100,102,104Sr, 100,102,104,106,108,110Zr, 106,108,110,112,114Mo, 112,114,116,118,120Ru, 118,120,122,124Pd, 122,124,126,128,130,132Cd, 134,136Sn, 138,140,142Te, 142,144,146Xe, 146,148,150,152Ba, 150,152,154,156Ce(β-); calculated T1/2. pnQRPA with δ-form Gamow-Teller residual interaction, comparison with experimental data.

doi: 10.1088/0954-3899/39/12/125105
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2012NI02      Rom.J.Phys. 57, 407 (2012)

D.D.Ni, Z.Z.Ren

New Formula of Half-Lives for Proton Emission from Spherical and Deformed Nuclei

RADIOACTIVITY 105Sb, 109I, 112,113Cs, 117La, 121Pr, 130,131Eu, 135Tb, 140,141Ho, 145,146,147Tm, 150,151Lu, 155,156,157Ta, 160,161Re, 164,165,166,167Ir, 171Au, 177Tl, 185Bi(p); calculated T1/2; deduced new formula.


2012NI13      Prog.Theor.Phys.(Kyoto), Suppl. 196, 445 (2012)

D.Ni, Z.Ren

Alpha-Decay Studies of Rf, Sg, and Hs Isotopes within the Multi-Channel Cluster Model

RADIOACTIVITY 252,254,256,258,260,262,264,266,268,270Rf, 256,258,260,262,264,266,268,270,272,274Sg, 260,262,264,266,268,270,272,274,276Hs(α); calculated T1/2, branching ratios. Multi-channel cluster model.

doi: 10.1143/PTPS.196.445
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2012NI14      Nucl.Phys. A893, 13 (2012)

D.Ni, Z.Ren

Binding energies, α-decay energies, and α-decay half-lives for heavy and superheavy nuclei

COMPILATION Z=106-120; evaluated nuclear mass, mass excess, Qα using AME2011; deduced new formula parameters from the fit to superheavy nuclei, calculated α-decay T1/2. Compared with KTYU05, FRDM95.

doi: 10.1016/j.nuclphysa.2012.08.006
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2012NI16      Phys.Rev. C 86, 054608 (2012)

D.Ni, Z.Ren

Systematic calculation of fine structure in the α decay of heavy odd-mass nuclei

RADIOACTIVITY 237Np, 239,241Pu, 239,241,243Am, 241,243,245,247Cm, 243,245,247,249Bk, 245Cf, 247,249,251,253Cf, 245,247,249,251,253,255Es, 251,253,255,257Fm, 255,257Md, 257No(α); calculated half-lives, branching ratios. Multichannel cluster model (MCCM). Comparison with experimental data.

doi: 10.1103/PhysRevC.86.054608
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2012NI17      J.Phys.:Conf.Ser. 381, 012055 (2012)

D.Ni, Z.Ren

Systematic calculation of fine structure in the α decay of deformed nuclei

RADIOACTIVITY 244Cm(α); calculated T1/2, branching ratio to 0+, 2+, 4+, 6+, 8+ 240Pu states. 252,254No, 256,258Rf(α); calculated T1/2 from 0+, 2+, 4+, 6+, 8+ states. Z=92-106(α); calculated T1/2, branching ratio to excited 4+, 6+ states. CC Schroedinger equation with outgoing wave boundary conditions. Compared to data.

doi: 10.1088/1742-6596/381/1/012055
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2011LI23      Eur.Phys.J. A 47, 78 (2011)

X.J.Liu, X.P.Zhang, D.D.Ni, Z.Z.Ren

Benford's law and cross-sections of A(n, α)B reactions

doi: 10.1140/epja/i2011-11078-3
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2011NI02      Phys.Rev. C 83, 014310 (2011)

D.Ni, Z.Ren

α-cluster structure above doubly closed shells in a generalized density-dependent cluster model

NUCLEAR STRUCTURE 20Ne, 44Ti, 94Mo, 212Po; calculated B(E2) transition strengths, α-decay widths of cluster states in the 16O+α system, α-decay half-lives and branching ratios in the 208Pb+α system. Generalized density-dependent cluster model (GDDCM). Double-folding potentials with density- and energy-dependent CDM3Y6 nucleon-nucleon interactions for α-core potential. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.014310
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2011NI12      Phys.Rev. C 83, 067302 (2011)

D.Ni, Z.Ren

Coupled-channels study of fine structure in the α decay of well deformed nuclei

RADIOACTIVITY 246Cf, 242Cm, 238Pu(α); A=234-260(α); calculated α-decay branching ratios to low-lying members of the ground-state rotational band up to 8+ band. Five-channel microscopic calculations using Schrodinger equation. Comparison with experimental data, and with calculations based on Boltzmann distribution (BD) hypothesis.

doi: 10.1103/PhysRevC.83.067302
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2011NI13      Phys.Rev. C 84, 037301 (2011)

D.Ni, Z.Ren

Coupled-channels study of fine structure in the α decay of platinum isotopes

RADIOACTIVITY 172,174,176,178,180,182,184,186,188,190,192,194Pt(α); calculated Q(α), branching ratio, half-lives. Coupled-channel Schrodinger equation. Predictions for α decay of neutron-rich nuclei. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.037301
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2011QI01      J.Phys.(London) G38, 015102 (2011)

Y.Qian, Z.Ren, D.Ni

α-decay half-lives in medium mass nuclei

RADIOACTIVITY 144Nd, 146,148Sm, 148,150,152Gd, 150,152,154Dy, 152,154,156Er, 154,156,158Yb, 156,158,160,162Hf, 158,160,162,164,166,168W, 162,164,166,168,170,172,174,186Os, 166,168,170,172,174,176,178,180,182,184,186,188,190Pt(α); calculated T1/2. Comparison with experimental data.

doi: 10.1088/0954-3899/38/1/015102
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2011QI06      Phys.Rev. C 83, 044317 (2011)

Y.Qian, Z.Ren, D.Ni

Calculations of α-decay half-lives for heavy and superheavy nuclei

RADIOACTIVITY 210Pb, 212,214,216,218Po, 214,216,218,220,222Rn, 216,218,220,222,224,226Ra, 218,220,222,224,226,228,230,232Th, 222,224,226,228,230,232,234,236,238U, 232,234,236,238,240,242,244Pu, 240,242,244,246,248Cm, 240,242,244,246,248,250,252,254Cf, 246,248,250,252,254,256Fm, 252,254,256No, 256,258Rf, 260,266Sg, 274Bh, 264,266,270Hs, 278Mt, 270,281Ds, 278,279,280,282Rg, 284,285Cn, 282,283,284,285,286Nh, 286,288,289Fl, 287,288,289,290Mc, 290,292,293Lv, 293,294Ts, 294Og(α); calculated half-lives using deformed version of the cluster model with modified two-potential approach and Woods-Saxon potential. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.044317
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2011QI10      Nucl.Phys. A866, 1 (2011)

Y.Qian, Z.Ren, D.Ni

α-Decay near the shell closure from ground and isomeric states

RADIOACTIVITY 151,153Dy, 151,152,153,154Ho, 153,155Er, 153,154,155,156Tm, 155,157Yb, 155,156,157,158Lu, 157,159Hf, 157,158,159,160Ta, 159,161W, 160,162Re, 163Os, 177,179,181,183Tl, 179,180,181,183,185,187,191Pb, 186,187,188,189,190,191,192,193,194,195,196,209,210,211,213Bi, 187,188,191,192,193,195,197,199,201,203,205,207,213,215Po, 191,192,193,194,195,197,197,198,199,200,201,202,203,204,205,206,207,208,209,213,214,215,216At, 195,197,199,201,203,205,207,215,217Rn, 199,200,201,202,203,204,205,206,207,208,215,216,217,218Fr, 217,219Ra, 217,218,219Ac, 219,221Th, 219,221Pa(α); calculated T1/2, isomeric states T1/2 using two-potential approach with deformed cluster model. Comparison with data.

doi: 10.1016/j.nuclphysa.2011.07.002
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2011SH13      J.Phys.(London) G38, 055103 (2011)

Z.-q.Sheng, D.-d.Ni, Z.-z.Ren

Systematic calculations on cluster radioactivity half-lives

RADIOACTIVITY 112,113,114,115,116,117Cs, 114,115,116,117,118,119,120Ba, 117,118,119,120,121,122La, 120Ce, 219Fr, 219,220,227Ra, 219,220,221,222,228Ac, 220,221,221,222,223Th, 221,223,231,232,233,234Pa, 222,223,224,225,226U, 225,226,227,228Np, 228,229,230Pu(12C), 114,115,116,117,118,119Ba, 117,118,119,120,122La, 119,120,121,122,123,124Ce, 121,122,123,124,125,126Pr, 124,125,126Nd, 224,225Th, 224,225,226,227U, 225,226,227,228,229Np, 228,229,230Pu(16O), 126Pm(24Mg), 220Fr, 224Pa(13C), 227Th, 227,228Pa, 228U(18O), 227,228Ac(20O), 229,230Ac(22O), 232,233,234Pu, 233,234,235Am(26Mg), 236Am, 233,235Pu(27Mg), 237Pu(29Mg), 128,129,130,131,132Sm, 130,131,132,133,134,135Eu, 134,135Gd, 136,137Tb, 138Dy(28Si), 131Sm(29Si), 132Eu, 135Gd(29Si), 136Tb, 138Dy, 140,141Ho(32S), 143Er(36Ar), 239Pu, 239,241Cm(33Si), 225Ac, 221,222,223,224,226Ra, 226Th, 220,222,224,226,223,225Fr, 220,228Ra, 221,222,224,226,227Ac, 224,225,227,223Th, 225,226,227,228Pa, 227,228U(14C), 226Th(18O), 228,229Th(20O), 229,231Pa(23F), 229,230U, 230,231Np, 231,232Pu(22Ne), 231U(23Ne), 229Ac, 230,231,232,233Pa, 229,230,231,232Th, 230,231,232,233,234,235,236U, 231,232,233Np(24Ne), 234Pa, 235U(25Ne), 232Th, 236U(26Ne), 127Pm(24Mg), 232,233,234,235U, 234,235,236Np, 234,235,236,237,238Pu, 235Am(28Mg), 235U, 235Np(29Mg), 236,238Pu, 237Np(30Mg), 238Pu, 236,238Am(32Si), 238Np, 239,240,241,242Am, 238,239,240,241,242,243Cm, 240,241Bk(34Si); calculated T1/2.

doi: 10.1088/0954-3899/38/5/055103
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2010NI01      J.Phys.(London) G37, 035104 (2010)

D.Ni, Z.Ren

α-decay calculations of ground and isomeric states within a generalized density-dependent cluster model

NUCLEAR STRUCTURE Z=67-89; calculated ground and isomeric states in neutron-deficient isotopes, α-decay T1/2. Comparison with experimental data.

doi: 10.1088/0954-3899/37/3/035104
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2010NI02      Phys.Rev. C 81, 024315 (2010)

D.Ni, Z.Ren

Systematic calculation of α decay within a generalized density-dependent cluster model

RADIOACTIVITY 229Th, 225,227Pa, 225,229,233,235U, 235,237Np, 237,239,241Pu, 239,240,241,242,243Am, 241,242,243,245,247Cm, 245,247,249Bk, 245,247,249,253Cf, 245,247,249,251,253,255Es, 251,255,257Fm(α); Z=52-104, N=84-156(α); Z=52, N=54-58(α); Z=91-100, N=133-157(α); calculated half-lives and branching ratios for even-even, odd-A and odd-odd α emitters using generalized density-dependent cluster model. Comparison with experimental data.

doi: 10.1103/PhysRevC.81.024315
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2010NI09      Phys.Rev. C 81, 064318 (2010)

D.Ni, Z.Ren

New approach for α-decay calculations of deformed nuclei

RADIOACTIVITY 244,246,248,250,252,254Cf, 246,248,250,252,254,256Fm, 252,254,256No, 256,258Rf, 260Sg(α); calculated half-lives and branching ratios using multichannel cluster model (MCCM) based on an axially deformed Woods-Saxon potential. Comparison with experimental data.

doi: 10.1103/PhysRevC.81.064318
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2010NI12      J.Phys.(London) G37, 105107 (2010)

D.Ni, Z.Ren

Calculations of new α-decay data within the generalized density-dependent cluster model

RADIOACTIVITY 179Tl, 175Au, 171Ir, 179,180,181Pb, 176,177Hg, 172Pt, 187,188,192Po, 271Sg, 272Bh, 275Hs, 275Mt, 279Ds, 278,279,282Rg, 283,285Cn, 282,283,285,286Nh, 286,287,289Fl, 287,288,289,290Mc, 290,291,292,293Lv, 293,294Ts, 294,295Og, 295,298,299120(α); calculated α-decay T1/2. Comparison with experiment.

doi: 10.1088/0954-3899/37/10/105107
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2010NI13      Phys.Rev. C 82, 024311 (2010)

D.Ni, Z.Ren

Half-lives and cluster preformation factors for various cluster emissions in trans-lead nuclei

RADIOACTIVITY 210Pb, 211Bi, 211,212,213,214Po(α); 219,220Rn, 221Fr, 221,222,223,224,225,226Ra, 223,225Ac, 226Th(14C); 221Fr, 223Ac(15N); 223Ra, 226,227Th, 227Pa(18O); 225,226Ra, 227Ac, 228,229Th(20O); 228Th, 229Pa, 230U, 231Np(22Ne); 229Ac, 231Pa(23F); 229,230,231,232Th, 231Pa, 230,232,233,234,235,236U, 233Np(24Ne); 231Th, 233,235U(25Ne); 232Th, 234,236U(26Ne); 232,233,234,235,236U, 235Np, 236,237,238Pu, 237Am(28Mg); 235U, 237Pu(29Mg); 236,238U, 237Np, 238,239Pu(30Mg); 237,238Pu, 239Am, 240,241Cm(32Si); 239Pu, 241Am, 242,243,244Cm(34Si); calculated half-lives and cluster preformation factors using generalized density-dependent cluster model (GDDCM). Comparison with experimental data.

doi: 10.1103/PhysRevC.82.024311
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2010NI15      Nucl.Phys. A834, 370c (2010)

D.Ni, Z.Ren

α-decay calculations of light mass nuclei above doubly magic 100Sn

RADIOACTIVITY 104,105,106,107,108,109,110Te, 106,107,108,109,110,111,112,113I, 108,109,110,111,112,113Xe, 111,112,113,114Cs, 112,113,114Ba(α); analyzed Q-value; calculated T1/2 using a generalized density-dependent cluster model. Comparison with data.

doi: 10.1016/j.nuclphysa.2010.01.042
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2010QI03      Chin.Phys.Lett. 27, 072301 (2010)

Y.-B.Qian, Z.-Z.Ren, D.-D.Ni

Theoretical Calculation for Half-Lives of Spherical Proton Emitters

RADIOACTIVITY 105Sb, 145,147Tm, 150,151Lu, 155,156,157Ta, 159,160,161Re, 164,165,166,167Ir, 171Au, 177Tl, 185Bi(p); calculated proton radioactivity T1/2 for spherical emitters. Comparison with experimental data.

doi: 10.1088/0256-307X/27/7/072301
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2010QI09      Chin.Phys.Lett. 27, 112301 (2010)

Y.-B.Qian, Z.-Z.Ren, D.-D.Ni, Z.-Q.Sheng

Half-Lives of Proton Emitters With a Deformed Density-Dependent Model

RADIOACTIVITY 105Sb, 145,146,147Tm, 150,151Lu, 155,156,157Ta, 159,160,161Re, 164,165,166,167Ir, 171Au, 177Tl, 185Bi, 109I, 112,113Cs, 117La, 121Pr, 130,131Eu, 135Tb, 140,141Ho(p); calculated T1/2 for semi-spherical and well-deformed proton emitters.

doi: 10.1088/0256-307X/27/11/112301
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2009NI06      Nucl.Phys. A825, 145 (2009)

D.Ni, Z.Ren

Microscopic calculation of α-decay half-lives within the cluster model

RADIOACTIVITY 210Pb, 212,214,216,218Po, 214,216,218,220,222Rn, 216,218,220,222,224,226Ra, 218,220,222,224,226,228,230,232Th, 222,224,226,228,230,232,234,236,238U, 232,234,236,238,240,242,244Pu, 240,242,244,246,248Cm, 240,242,244,246,248,250,252,254Cf, 246,248,250,252,254,256Fm, 252,254,256No, 256,258Rf, 260,266Sg, 264,266,270Hs, 270Ds, 278,279,280Rg, 283,284,285Cn, 282,283,284Nh, 286,287,288,289Fl, 287,288Mc, 290,291,292,293Lv, 294Og(α); calculated α-decay half-lives using a cluster model. Comparison with data.

doi: 10.1016/j.nuclphysa.2009.04.010
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2009NI08      Phys.Rev. C 80, 014314 (2009)

D.Ni, Z.Ren

Exotic α decays around the N=126 magic shell

RADIOACTIVITY 209Bi, 209,210,211Po, 211At, 211,212,213Rn, 213Fr, 213,214,215Ra, 215Ac, 215,216,217Th, 217Pa, 217,218,219U(α); calculated half-lives, decay widths, Q-values and α preformation factors using generalized density-dependent cluster model (GDDCM) combined with microscopic two-level model. Comparison with experimental data.

doi: 10.1103/PhysRevC.80.014314
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2009NI11      Nucl.Phys. A828, 348 (2009)

D.Ni, Z.Ren

α-Decay calculations of medium mass nuclei within generalized density-dependent cluster model

RADIOACTIVITY 144Nd, 146,148Sm, 148,150,152Gd, 150,152,154Dy, 152,154,156Er, 154,156,158Yb, 156,158,160,162Hf, 158,160,162,164,166,168W, 162,164,166,168,170,172,174,186Os, 166,168,170,172,174,176,178,180,182,184,186,188,190Pt, 172,174,176,178,180,182,184,186,188Hg, 178,180,182,184,186,188,190,192,194Pb, 190,192,194,196,198,200,202,204,206,208,210Po, 196,198,200,202,204,206,208,210,212Rn, 202,204,206,208,210,212Ra, 212,214,216Th, 218U(α); calculated α-decay T1/2 using generalized density-dependent cluster model with double-folded or Woods-Saxon potentials. Comparison with data.

doi: 10.1016/j.nuclphysa.2009.07.014
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2009NI12      Phys.Rev. C 80, 051303 (2009)

D.Ni, Z.Ren

Microscopic calculation of α-decay half-lives with a deformed potential

RADIOACTIVITY Z=52-104(α); calculate half-lives, branching ratios of 0+ to 0+ transitions for even-even nuclei using generalized density dependent cluster model (GDDCM). Comparison with experimental data.

doi: 10.1103/PhysRevC.80.051303
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2008NI12      Phys.Rev. C 78, 044310 (2008)

D.Ni, Z.Ren, T.Dong, C.Xu

Unified formula of half-lives for α decay and cluster radioactivity

RADIOACTIVITY Po, Rn, Ra, Th, U, Pu, Cm, Cf, Fm, No, Rf, Sg, Hs, Ds; Z=114, 116, 118; 221Fr, 221,222,223,224,226Ra, 225Ac(14C); 228Th(20O); 231Pa, 230,232,233U(24Ne); 231Pa(23F); 234U, 236Pu(28Mg); 238Pu(32Si); 242Cm(34Si); calculated half-lives of α and cluster decays. Comparison with experimental data.

doi: 10.1103/PhysRevC.78.044310
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2008NI14      Eur.Phys.J. A 38, 251 (2008)

D.Ni, Z.Ren

Benford's law and half-lives of unstable nuclei

doi: 10.1140/epja/i2008-10680-8
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