References quoted in the ENSDF dataset: 253RF ADOPTED LEVELS

32 references found.

Clicking on a keynumber will list datasets that reference the given article.

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1976FLZN

CERN-76-13, p.542 (1976)

G.N.Flerov

The Dubna Programme on Heavy and Superheavy Elements

RADIOACTIVITY ²⁴²Fm, ²⁵⁰No, ^{256,255,254,253}Rf, ^257,255Db, ²⁵⁹Sg, ²⁶¹Bh; measured T_1/2. Review.

1978PO09

Nukleonika 23, 125 (1978)

K.Pomorski

Spontaneous Fission Half Lives for Odd A Nuclei with Z ≥ 96

RADIOACTIVITY ²⁴³Md, ²⁴²Fm, ²⁵⁹Rf(SF); calculated fission barriers, effective mass parameters. ²⁵⁹Rf, ²⁶¹Db(SF), ^{240,242,244,246,248,250,252,241,243,245,247,249,251,253}Cm, ^{243,245,247,249,251,253,255}Bk, ^{244,245,246,247,248,249,250,251,252,253,254,255}Cf, ^{242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258}Fm, ^{248,249,250,251,252,253,254,255,256,257,258,259,260}No, ^{251,253,255,257,259,261}Lr, ²⁵⁰Rf, ²⁵¹Rf, ²⁵²Rf, ²⁵³Rf, ²⁵⁴Rf, ²⁵⁵Rf, ²⁵⁶Rf, ²⁵⁷Rf, ²⁵⁸Rf, ²⁶⁰Rf, ²⁶¹Rf, ²⁶²Rf, ²⁵⁶Sg, ²⁵⁷Sg, ²⁵⁸Sg, ²⁵⁹Sg, ²⁶⁰Sg, ²⁶¹Sg, ²⁶²Rf, ²⁶³Sg, ²⁶⁴Sg, ²⁶⁰Hs, ²⁶¹Hs, ²⁶²Hs, ²⁶³Hs, ²⁶⁴Hs, ²⁶⁵Hs, ²⁶⁶Hs(SF); calculated T_1/2.

1985CW01

Nucl.Phys. A444, 1 (1985)

S.Cwiok, Z.Lojewski, V.V.Pashkevich

Fission Barriers of Odd-Mass Nuclei and Odd Nuclei with 100 ≤ Z ≤ 111

NUCLEAR STRUCTURE ^{259,261,257,255,253,251,249,247,245,243}Fm, ^{246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263}Md, ^{243,245,246,249,251,253,255,257,259,261,263}No, ^{254,255,256,257,258,259,260,261,262,263,264,265}Lr, ^{251,253,255,257,259,261,263,265}Rf, ^{254,255,256,257,258,259,260,261,262,263,264,265,266,267}Db, ^{257,259,261,263,265,267}Sg, ^{258,259,260,261,262,263,264,265,266,267,268,269,270,271}Bh, ^{259,261,263,265,267,269,271}Hs, ^{262,263,264,265,266,267,268,269,270,271}Mt, ^{263,265,267,269,271,273,275}Ds, ^{267,268,269,270,271,272,273,274,275,276,277,278}Rg; calculated deformation energy along fission barrier vs β₂, fission barrier vs neutron number. Strutinsky method, realistic Woods-Saxon potential.

doi: 10.1016/0375-9474(85)90288-X

1994CW02

Nucl.Phys. A573, 356 (1994)

S.Cwiok, S.Hofmann, W.Nazarewicz

Shell Structure of the Heaviest Elements

NUCLEAR STRUCTURE Z=95-111; N=149-162; compiled, reviewed mass excess, equilibrium deformations, single nucleon states binding energy, Q(α).

doi: 10.1016/0375-9474(94)90349-2

1997HE29

Z.Phys. A359, 415 (1997)

F.P.Hessberger, S.Hofmann, V.Ninov, P.Armbruster, H.Folger, G.Munzenberg, H.J.Schott, A.G.Popeko, A.V.Yeremin, A.N.Andreyev, S.Saro

Spontaneous Fission and Alpha-Decay Properties of Neutron Deficient Isotopes ^257-253104 and ²⁵⁸106

RADIOACTIVITY ^253,254Rf, ²⁵⁸Sg(SF), ^255,256,257Rf(α) [from ^204,206,208Pb(⁵⁰Ti, xn), E=4.8-5.1 MeV/nucleon; ²⁰⁹Bi(⁵¹V, X), E=4.77-4.99 MeV/nucleon]; measured Eα, T_1/2. ²⁵⁷Rf, ²⁵³No deduced levels.

NUCLEAR REACTIONS ^204,206,208Pb(⁵⁰Ti, xn), E=4.8-5.1 MeV/nucleon; ²⁰⁹Bi(⁵¹V, X), E=4.77-4.99 MeV/nucleon; measured Eα, Iα, residuals fission fragments; deduced evidence for ²⁵⁸Sg, ^253,254Rf.

doi: 10.1007/s002180050422

1999HE11

J.Phys.(London) G25, 877 (1999)

F.P.Hessberger

GSI Experiments in the Region of Heaviest Elements

NUCLEAR REACTIONS ²⁰⁹Bi(⁵⁰Ti, X), E=4.6-5.1 MeV/nucleon; measured isotopic yields; deduced evidence for ²⁵⁶Db, ²⁵³Lr.

RADIOACTIVITY ^256,257,258Db, ^252,253Lr(α) [from ²⁰⁹Bi(⁵⁰Ti, X)]; ²⁶⁵Hs, ²⁶⁶Mt(α) [from ²⁰⁸Pb, ²⁰⁹Bi(⁵⁸Fe, n)]; measured Eα, T_1/2. ²⁶⁵Hs, ²⁶⁶Mt deduced levels. ^253,254Rf, ²⁵⁸Sg(SF); measured T_1/2. ²⁵⁷Rf, ²⁵⁷Db, ²⁶¹Sg, ²⁶⁵Hs deduced fission branching upper limits.

doi: 10.1088/0954-3899/25/4/059

2004RO01

Ann.Nucl.Energy 31, 323 (2004)

Y.Ronen

Indications of the validity of the liquid drop model for spontaneous fission half-lives

RADIOACTIVITY ^230,232Th, ²³¹Pa, ^{232,233,234,235,236,238}U, ²³⁷Np, ^{236,238,239,240,241,242,244}Pu, ^241,243Am, ^{240,242,243,244,245,246,248,250}Cm, ^{246,248,249,250,252,254,256}Cf, ^253,254,255Es, ^{246,248,250,252,254,255,256,257,258,259}Fm, ²⁵⁹Md, ^{250,252,256,258}No, ^{253,254,255,256,257,258,259,260,262}Rf, ^{255,256,257,261,262}Db, ^259,260,263Sg, ²⁶¹Bh(SF); analyzed spontaneous fission T_1/2 relative to liquid drop model predictions.

doi: 10.1016/S0306-4549(03)00221-4

2005PA73

Acta Phys.Pol. B36, 3115 (2005)

A.Parkhomenko, A.Sobiczewski

Neutron one-quasiparticle states of heaviest nuclei

NUCLEAR STRUCTURE ²³⁵Th, ^237,239U, ^{239,241,243,245,247,249}Pu, ^{241,243,245,247,249,251,253}Cm, ^{243,245,247,249,251,253,255,257}Cf, ^{245,247,249,251,253,255,257,259,261}Fm, ^{247,249,251,253,255,257,259,261,263}No, ^{251,253,255,257,259,261,263,265}Rf, ^{253,255,257,259,261,263,265,267}Sg, ^{261,263,265,267,269}Hs, ^267,269,271Ds; calculated neutron single-quasiparticle energies. Macroscopic-microscopic approach.

2005RE16

Nucl.Phys. A759, 64 (2005)

Z.Ren, C.Xu

Spontaneous fission half-lives of heavy nuclei in ground state and in isomeric state

RADIOACTIVITY ^{235,236m,238m}U, ^237mNp, ^{235m,236m,237m,238m,239,239m,240m,241m,242m,243m,244m,245m}Pu, ^{237m,238m,239m,240m,241,241m,242m,243,243m,244m,245m,246m}Am, ^{241m,242m,243,243m,244m,245,245m}Cm, ^{242m,244m,245m,249}Bk, ^244,247,249Cf, ^253,255Es, ^{251,253,255,257,259}Fm, ^245,247,260Md, ^259,261Lr, ^253,255,259Rf, ^{255,257,260,263}Db, ^{261,263,265,267}Sg, ^{263,265,267,269}Bh, ^{269,271,273,275}Ds, ^{271,273,275,277}Rg(SF); calculated T_1/2. Several formulas compared with data.

doi: 10.1016/j.nuclphysa.2005.04.019

2006SH19

Phys.Rev. C 74, 034316 (2006)

T.M.Shneidman, G.G.Adamian, N.V.Antonenko, R.V.Jolos

Possible alternative parity bands in the heaviest nuclei

NUCLEAR STRUCTURE ^239,240U, ^{241,242,243,244,245}Pu, ^{243,244,245,246,247,248}Cm, ^{245,246,247,248,249,250}Cf, ^{247,248,249,250,251,252}Fm, ^{249,250,251,252,253,254}No, ^{253,254,255,256}Rf, ²⁵⁸Sg; calculated levels, J, π, rotational bands, transition dipole and quadrupole moments. Cluster model.

doi: 10.1103/PhysRevC.74.034316

2007ZH41

Phys.Rev. C 76, 047304 (2007)

H.F.Zhang, G.Royer

Theoretical and experimental α decay half-lives of the heaviest odd-Z elements and general predictions

RADIOACTIVITY ^{253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268}Rf, ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270}Db, ^{258,259,260,261,262,263,264,265,266,267,268,269,270,271,272}Sg, ^{260,261,262,263,264,265,266,267,268,269,270,271,272,273,274}Bh, ^{263,264,265,266,267,268,269,270,271,272,273,274,275,276,277}Hs, ^{265,266,267,268,269,270,271,272,273,274,275,276,277,278,279}Mt, ^{267,268,269,270,271,272,273,274,275,276,277,278,279,280,281}Ds, ^{272,273,274,275,276,277,278,279,280,281,282,283}Rg, ^{277,278,279,280,281,282,283,284,285}Cn, ^{283,284,285,286,287}Nh, ^{285,286,287,288,289}Fl, ^{287,288,289,290,291}Mc, ^{289,290,291,292}Lv, ^291,292Ts, ²⁹³Og(α); calculated half-lives, Q(α), comparison with experimental values.

doi: 10.1103/PhysRevC.76.047304

2008DO12

Phys.Rev. C 77, 064310 (2008)

T.Dong, Z.Ren

Improved version of a binding energy formula for heavy and superheavy nuclei with Z≥ =90 and N ≥ =140

NUCLEAR STRUCTURE ^{231,232,233,234,235,236,237,238}Pa, ^{233,234,235,236,237,238,239,240,241,242}Np, ^{238,239,240,241,242,243,244,245,246}Am, ^{243,244,245,246,247,248,249,250,251}Bk, ^{251,252,253,254,255}Es; calculated binding energies. ^{241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260}Fm, ^{240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262}Md, ^{237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264}No, ^{246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265}Lr, ^{242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266}Rf, ^{252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267}Db, ^{248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267}Sg, ^{258,259,260,261,262,263,264,265,266,267}Bh, ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270}Hs, ^{264,265,266,267,268,269,270,271}Mt, ^{260,261,262,263,264,265,266,267,268,269,270}Ds; calculated Q_α, half-life, single particle binding energies, separation energies.

doi: 10.1103/PhysRevC.77.064310

2008RO06

Phys.Rev. C 77, 037602 (2008)

G.Royer, H.F.Zhang

Recent α decay half-lives and analytic expression predictions including superheavy nuclei

RADIOACTIVITY ¹⁰⁵Te, ¹⁵⁶Er, ¹⁵⁸Yb, ^160,174Hf, ^158,168W, ^162,164Os, ^166,168,170Pt, ^172,174,188Hg, ^{178,180,184,186,188,190,192,194}Pb, ^{188,189,190,192,210}Po, ^196,198Rn, ^202,204Ra, ^210,212Th, ^{218,220,224,226}U, ^228,230Pu, ²³⁸Cm, ²⁵⁸No, ^{253,254,255,256,257,258,259,260,262,263,264,265,267,268}Rf, ^{255,256,257,258,259,261,262,263,264,265,266,267,268,269,270}Db, ^{258,259,261,262,264,267,268,269,270,271,272}Sg, ^{260,261,262,263,264,265,266,267,268,269,270,271,272,273,274}Bh, ^{263,266,267,268,269,270,271,273,274,275,276,277}Hs, ^{265,266,267,268,269,270,271,272,273,274,275,276,277,278,279}Mt, ^{267,268,270,271,272,273,274,275,276,277,278,279,281}Ds, ^{273,274,275,276,277,278,279,280,281,282,283}Rg, ^{277,278,279,280,281,282,283,284,285}Cn, ^{282,283,284,285,286,287}Nh, ^{285,286,287,288,289}Fl, ^{287,288,289,290,291}Mc, ^{289,290,291,292,293}Lv, ^291,292Ts, ^293,294Og(α); calculated half-lives, Q_α using density dependent effective interaction and Viola-Seaborg-Sobiczewski formulas. Comparison with experimental data for known isotopes.

doi: 10.1103/PhysRevC.77.037602

2009DO22

Chin.Phys.C 33, Supplement 1, 5 (2009)

T.-K.Dong, Z.-Z.Ren, C.Xu

Research on some superheavy nuclei

RADIOACTIVITY ^{251,252,253,254,255,256,257}No, ^{253,254,255,256,257,258,259}Lr, ^{253,254,255,256,257,258,259}Rf, ^{256,257,258,259,260,261}Db, ^{258,259,260,261,262,263}Sg, ^260,261,262Bh, ^{264,265,266,267}Hs, ^{264,265,266,267}Mt(α); calculated α-decay energies, T_1/2. Local-binding energy and Viola-Seaborg formulas.

doi: 10.1088/1674-1137/33/S1/002

2012JI07

Phys.Rev. C 85, 054303 (2012)

H.Jiang, G.J.Fu, B.Sun, M.Liu, N.Wang, M.Wang, Y.G.Ma, C.J.Lin, Y.M.Zhao, Y.H.Zhang, Z.Ren, A.Arima

Predictions of unknown masses and their applications

ATOMIC MASSES Z=1-184, N=1-184; analyzed masses for 1566 nuclei using extrapolation approach and shell correction term, S(n), S(2n), S(p), and S(2p); one-neutron and one-proton drip nuclei, R-process nucleosynthesis and astrophysical implications. Comparison with AME-2011 interim mass evaluation, and with Duflo-Zuker model. ⁸⁵Mo, ^87,88,89Tc, ¹²³Ag, ¹⁴⁰I, ²²²Po, ^226,227,228Rn, ^233,234Ra, ²³⁵Ac; compared predicted masses with measured values.

RADIOACTIVITY ^{248,249,250,251,252,253,254,255,256,257}No, ^{251,252,253,254,255,256,257,258,259}Lr, ^{253,254,255,256,257,258,259,260,261}Rf, ^{255,256,257,258,259,260,261,262}Db, ^{256,257,258,259,260,261,262,263}Sg(α); calculated Q(α), half-life. Comparison with experimental data.

doi: 10.1103/PhysRevC.85.054303

2014SI17

Rom.J.Phys. 59, 724 (2014)

I.Silisteanu, C.I.Anghel

Competition between Alpha-Decay and Spontaneous Fission in Rf, Db, and Sg Isotopes

RADIOACTIVITY ^{253,254,255,256,257,258,259,260,261,262,263,264,265,266,267}Rf, ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271}Db, ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,274}Sg(α), (SF); calculated T_1/2 for α-decay and spontaneous fission.

2015AS05

Nucl.Phys. A944, 308 (2015)

M.Asai, F.P.Hessberger, A.Lopez-Martens

Nuclear structure of elements with 100 ≤ Z ≤ 109 from alpha spectroscopy

NUCLEAR STRUCTURE ²⁴⁵Pu, ²⁴⁷Cm, ²⁴⁹Cf, ²⁵¹Fm, ²⁵³No, ²⁵⁵Rf, ²⁵⁷Sg, ²⁵⁹Hs, ²⁴⁹Cm, ²⁵¹Cf, ²⁵³Fm, ²⁵⁵No, ²⁵⁷Rf, ²⁵⁹Sg, ²⁶¹Hs, ²⁴⁹Pu, ²⁵¹Cm, ²⁵³Cf, ²⁵⁵Fm, ²⁵⁷No, ²⁵⁹Rf, ²⁶¹Sg, ²⁶³Hs; calculated energy levels, J, π, Nilsson single-particle energies, deformation parameters. Comparison with available data.

RADIOACTIVITY ²⁴⁷Cm, ²⁴⁹Cf, ²⁵¹Fm, ²⁵³No, ²⁵⁵Rf, ²⁵⁷Sg, ²⁵¹Cf, ²⁵³Fm, ²⁵⁵No, ²⁵⁷Rf, ²⁵⁹Sg, ²⁶¹Hs(α), ²⁴⁷Cm, ²⁴⁹Cf, ²⁵¹Fm, ²⁵³No(IT), ²⁴⁹Cm, ²⁵¹Cf, ²⁵³Fm, ²⁵⁷Rf, ²⁵⁹Sg(IT), ²⁵³Cf, ²⁵⁵Fm, ²⁵⁷No, ²⁵⁹Rf, ²⁶¹Sg(α), ²⁵⁹No, ²⁶¹Rf(α); analyzed decay products, Eα, Iα, Eγ, Iγ, α-γ-coin.; deduced energy levels, J, π, T_1/2. Internal-conversion-electron coincidence spectroscopy.

doi: 10.1016/j.nuclphysa.2015.06.011

2015BA24

J.Phys.(London) G42, 085101 (2015)

X.J.Bao, S.Q.Guo, H.F.Zhang, Y.Z.Xing, J.M.Dong, J.Q.Li

Competition between α-decay and spontaneous fission for superheavy nuclei

RADIOACTIVITY ²³²Th, ^234,236,238U, ^{236,238,240,242,244}Pu, ^{240,242,244,246,248,250}Cm, ^{242,244,246,248,250,252,254}Cf, ^246,248Fm, ^256,258,260Rf, ^264,266,270Hs, ²⁷⁰Ds, ²⁸⁴Cn, ^286,288Fl, ^290,292Lv, ²⁹⁴Og, ²³⁵U, ²³⁹Pu, ^243,245Cm, ^237,249Cf, ^255,257,259Fm, ^253,255,259Rf, ^293,294Ts, ^287,289,290Mc, ^{282,283,285,286}Nh, ^275,278Mt, ^271,274Bh, ^291,293Lv, ^287,289Fl, ^283,285Cn, ^{278,279,280,281,282}Rg, ^279,281Ds, ^274,275,276Mt, ²⁷⁵Hs, ^270,272Bh, ^{266,267,268,270}Db(α); calculated T_1/2. Comparison with experimental data.

doi: 10.1088/0954-3899/42/8/085101

2018MA38

Bull.Rus.Acad.Sci.Phys. 82, 691 (2018)

M.L.Markova, T.M.Shneidman, N.V.Antonenko, T.Yu.Tretyakova

Effect of Coriolis Interaction on the Decay of Isotones with N = 149 and N = 153

NUCLEAR STRUCTURE ^243,247Pu, ^245,249Cm, ^247,251Cf, ^249,253Fm, ^251,255No, ^253,257Rf; calculated single-particle energy spectra, J, π, deformation of odd isotones with N=149, 153 using Two-Center Shell Model (TCSM) with K-mixing of the basis wave functions and inclusion of the Coriolis correction; deduced estimates for the B(E2) transitions to the gs, T_1/2 of the isotones.

doi: 10.3103/S1062873818060187

2019MO01

At.Data Nucl.Data Tables 125, 1 (2019)

P.Moller, M.R.Mumpower, T.Kawano, W.D.Myers

Nuclear properties for astrophysical and radioactive-ion-beam applications (II)

NUCLEAR STRUCTURE Z=8-136; calculated the ground-state odd-proton and odd-neutron spins and parities, proton and neutron pairing gaps, one- and two-neutron separation energies, quantities related to β-delayed one- and two-neutron emission probabilities, average energy and average number of emitted neutrons, β-decay energy release and T_1/2 with respect to Gamow-Teller decay with a phenomenological treatment of first-forbidden decays, one- and two-proton separation energies, and α-decay energy release and half-life.

doi: 10.1016/j.adt.2018.03.003

2020SI27

Nucl.Phys. A1004, 122035 (2020)

U.K.Singh, P.K.Sharma, M.Kaushik, S.K.Jain, D.T.Akrawy, G.Saxena

Study of decay modes in transfermium isotopes

RADIOACTIVITY ^{245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260}Md, ^{250,251,252,253,254,255,256,257,258,259,260,261,262}No, ^{252,253,254,255,256,257,258,259,260,261,262,263,264,265,266}Lr, ^{253,254,255,256,257,258,259,260,261,262,263,264,265}Rf, ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270}Db, ^{258,259,260,261,262,263,264,265,266,267,268,269,270,271}Sg, ^{260,261,262,263,264,265,266,267,268,269,270,271,272,273,274}Bh, ^{263,264,265,266,267,268,269,270,271,272,273,274,275,276,277}Hs, ^{266,267,268,269,270,271,272,273,274,275,276,277,278}Mt(EC), (β^-), (α), (SF); calculated T_1/2. Comparison with available data.

doi: 10.1016/j.nuclphysa.2020.122035

2021BU02

Eur.Phys.J. A 57, 41 (2021)

A.I.Budaca

Screening amendment to the universal decay law for alpha decay

RADIOACTIVITY ^{186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219}Po, ^{194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222}Rn, ^{202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226}Ra, ^{208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232}Th, ^{214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238}U, ^{228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244}Pu, ^{234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250}Cm, ^{240,241,242,243,244,245,246,247,248,249,250,251,252,253,254}Cf, ^{246,247,248,249,250,251,252,253,254,255,256}Fm, ^{251,252,253,254,255,256}No, ^{254,260,264,266,268}Rf, ^{258,262,264,266,268,270,272}Sg, ^272,274,276Hs, ^{268,272,274,276,278,280}Ds, ^{276,278,280,282,284}Cn, ²⁸⁴Fl, ^{253,259,261,263,265,267}Rf, ^{259,261,263,265,267,269,271,273}Sg, ^{263,265,267,269,271,273,275,277}Hs, ^{267,269,271,273,275,277,279,281}Ds, ^{277,279,281,283,285}Cn, ^285,287,289Fl, ^289,291,293Lv(α); calculated T_1/2. Comparison with available data.

doi: 10.1140/epja/s10050-021-00359-1

2021JI04

Phys.Rev. C 103, 024314 (2021)

J.Jia, Y.Qian, Z.Ren

Systematics of α-decay energies in the valence correlation scheme

RADIOACTIVITY ^{248,249,250,251,252,253,254,255,256}No, ^{251,252,253,254,255,256,257,258,259}Lr, ^{253,254,255,256,257,258}Rf, ^277,285Cn, ^284,285,286Nh, ^{284,285,286,287,288,289}Fl, ^{287,288,289,290}Mc, ^{290,291,292,293}Lv, ^293,294Ts, ²⁹⁴Og(α); calculated Q(α) from analysis of evaluated Q(α) data for Z=52-118 nuclei in AME2016 using a simple valence correlation scheme (VCS), and compared with available experimental data.

doi: 10.1103/PhysRevC.103.024314

2021KH07

Phys.Rev. C 104, L031303 (2021)

J.Khuyagbaatar, H.Brand, R.A.Cantemir, Ch.E.Dullmann, F.P.Hessberger, E.Jager, B.Kindler, J.Krier, N.Kurz, B.Lommel, B.Schausten, A.Yakushev

Spontaneous fission instability of the neutron-deficient No and Rf isotopes: The new isotope ²⁴⁹No

RADIOACTIVITY ^253,253mRf(SF); ²⁵³Rf, ²⁴⁹No(α)[²⁵³Rf from ²⁰⁴Pb(⁵⁰Ti, n), E=234.3 MeV]; measured evaporation residues (ERs), (ER)(fission)- and (ER)α-correlated events, Eα, Iα, partial half-lives of two fission activities of ²⁵³Rf, α-decay half-life of newly discovered ²⁴⁹No isotope from the α decay mode of ²⁵³Rf in (ER)-α-α-α correlated events using gas-filled TransActinide Separator and Chemistry Apparatus (TASCA) at UNILAC, GSI. ²⁵³Rf; deduced another high-lying ≈0.6-μs isomer. ^251mNo; discussed in Supplemental Material of the paper a possible identification method for direct fission from an isomeric state in ²⁵¹No. Presence of two fission activities in ²⁵³Rf proposed as benchmark cases for the theoretical description of the influence of single-particle orbitals on the fission process.

doi: 10.1103/PhysRevC.104.L031303

2021MA17

Chin.Phys.C 45, 024105 (2021)

N.-N.Ma, X.-J.Bao, H.-F.Zhang

Diffuseness effect and radial basis function network for optimizing α decay calculations

RADIOACTIVITY ²⁵⁶Rf, ²⁵⁸Rf, ²⁶³Rf, ^257,258,259Db, ²⁶³Db, ^{259,260,261,262}Sg, ²⁶⁹Sg, ²⁷¹Sg, ²⁶⁰Bh, ²⁶¹Bh, ²⁶⁴Bh, ^266,267Bh, ²⁷⁰Bh, ²⁷²Bh, ²⁷⁴Bh, ^{264,265,266,267}Hs, ²⁷⁰Hs, ²⁷³Hs, ²⁶⁸Mt, ^274,275,276Mt, ²⁷⁸Mt, ²⁶⁷Ds, ^269,270,271Ds, ²⁷³Ds, ²⁷⁷Ds, ²⁸¹Ds, ²⁷²Rg, ²⁷⁴Rg, ^278,279,280Rg, ²⁸¹Cn, ²⁸⁵Cn, ²⁷⁸Nh, ^{282,283,284,285,286}Nh, ^{286,287,288,289}Fl, ^{287,288,289,290}Mc, ^{290,291,292,293}Lv, ^293,294Ts, ²⁹⁴Og, ^{252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288}Rf, ^{272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310}Fl, ^{286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316}119, ^{292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318}120(α); calculated T_1/2. Comparison with available data.

doi: 10.1088/1674-1137/abcc5c

2021SA34

Phys.Rev. C 104, 024617 (2021)

K.P.Santhosh, C.Nithya, T.A.Jose

Decay modes of superheavy nuclei using a modified generalized liquid drop model and a mass-inertia-dependent approach for spontaneous fission

RADIOACTIVITY ^{253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268}Rf, ^{258,259,260,261,262,263,264,265,266,267,268,269,270,271,272}Sg, ^{263,264,265,266,267,268,269,270,271,272,273,274,275,276,277}Hs, ^{267,268,269,270,271,272,273,274,275,276,277,278,279,280,281}Ds, ^{276,277,278,279,280,281,282,283,284,285}Cn, ^{284,285,286,287,288,289}Fl, ^{289,290,291,292,293}Lv, ^293,294,295Og(α), (SF); ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270}Db, ^{260,261,262,263,264,265,266,267,268,269,270,271,272,273,274}Bh, ^{265,266,267,268,269,270,271,272,273,274,275,276,277,278,279}Mt, ^{272,273,274,275,276,277,278,279,280,281,282,283}Rg, ^{278,279,280,281,282,283,284,285,286,287}Nh, ^{287,288,289,290,291}Mc, ^{291,292,293,294}Ts(α), (SF); calculated α decay and SF decay T_1/2 of superheavy nuclei using modified generalized liquid drop model (MGLDM) with the proximity 77 parametrization for α decay, and a mass-inertia-dependent approach for spontaneous fission. Comparison with available experimental T_1/2.

doi: 10.1103/PhysRevC.104.024617

2021SI02

Nucl.Phys. A1006, 122066 (2021)

U.K.Singh, R.Sharma, P.K.Sharma, M.Kaushik, S.K.Jain, G.Saxena

Structural properties and α-decay chains of transfermium nuclei (101 ≤ Z ≤ 110)

RADIOACTIVITY ^{235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287}Md, ^{238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288}No, ^{241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289}Lr, ^{243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290}Rf, ^{245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291}Db, ^{248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292}Sg, ^{250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293}Bh, ^{253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294}Hs, ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295}Mt, ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296}Ds(α), (SF); calculated potential energy surfaces (PESs), occupancies of neutron single particle states, rms α-decay T_1/2, T_1/2. Comparison with available data.

doi: 10.1016/j.nuclphysa.2020.122066

2021VL01

Int.J.Mod.Phys. E30, 2150025 (2021)

E.V.Vladimirova, B.S.Ishkhanov, M.V.Simonov, S.V.Sidorov, T.Yu.Tretyakova

Residual np-interaction and mass predictions in transfermium region

RADIOACTIVITY ^{246,247,248,249,250,251,252,253,254,255,256,257,258}Md, ^{248,249,250,251,252,253,254,255,256,257,258,259}No, ^{250,251,252,253,254,255,256,257,258,259,260}Lr, ^{252,253,254,255,256,257,258,259,260,261}Rf, ^{254,255,256,257,258,259,260,261,262}Db, ^{256,257,258,259,260,261,262,263}Sg(α); calculated T_1/2, Q-values. Comparison with available data.

doi: 10.1142/S0218301321500257

2021WA16

Chin.Phys.C 45, 030003 (2021)

M.Wang, W.J.Huang, F.G.Kondev, G.Audi, S.Naimi

The AME 2020 atomic mass evaluation (II). Tables, graphs and references

ATOMIC MASSES A=1-295; compiled, evaluated atomic masses, mass excess, β-, ββ and ββββ-decay, binding, neutron and proton separation energies, decay and reaction Q-value data.

doi: 10.1088/1674-1137/abddaf

2022LO03

Phys.Rev. C 105, L021306 (2022)

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

Fission properties of ²⁵³Rf and the stability of neutron-deficient Rf isotopes

RADIOACTIVITY ²⁵³Rf(SF)(α) [from ²⁰⁴Pb(⁵⁰Ti, n), E=244 MeV];²⁴⁹No(α)[from ²⁵³Rf(SF)(α)];²⁴⁵Fm(α)[from ²⁴⁹No(α)]; ²⁵¹No(SF)(α)[from ²⁰⁴Pb(⁴⁸Ca, n); measured fission fragments, Eγ, Iγ, Eα, Iα, (implant)α-coin, (implant)γ-coin. ²⁵³Rf; deduced levels, J, π, T_1/2 for two isomeric fissioning states, branching ratio for α-decay. ²⁵¹No; deduced T_1/2. ²⁵²Rf; deduced T_1/2 based on extracted hindrance factor and systematics. U400 Cyclotron at the Flerov Laboratory of Nuclear Reactions in Dubna with separator for heavy element spectroscopy (SHELS). GABRIELA detector consisting of DSSD and HPGe detectors.

NUCLEAR REACTIONS ²⁰⁴Pb(⁵⁰Ti, n), E=244 MeV; measured fission fragments from ²⁵³Rf decay, Eα, Iα; deduced σ.

doi: 10.1103/PhysRevC.105.L021306

2022RO05

Nucl.Phys. A1021, 122427 (2022)

G.Royer, Q.Ferrier, M.Pineau

Alpha and cluster decays of superheavy elements and 2p radioactivity of medium nuclei

RADIOACTIVITY ^{252,254,256,258,260,262,264,266,268}Rf, ^{258,260,262,264,266,268,270,272}Sg, ^{262,264,266,268,270,272,274,276,278}Hs, ^{260,262,264,266,268,270,272,274,276,278,280,282}Ds, ^{276,278,280,282,284,286}Cn, ^{284,286,288,290}Fl, ^290,292Lv, ²⁹⁴Og, ^296,298120, ^{253,255,257,259,261,263,265,267,269}Rf, ^{257,259,261,263,265,267,269,271}Sg, ^{263,265,267,269,271,273,275,277}Hs, ^{267,269,271,273,275,277,279,281}Ds, ^{277,279,281,283,285}Cn, ^285,287,289Fl, ^289,291,293Lv, ^293,295Og, ^295,297120, ^{255,257,259,261,263,265,267,269,271}Db, ^{259,261,263,265,267,269,271,273,275}Bh, ^{265,267,269,271,273,275,277,279}Mt, ^{271,273,275,277,279,281,283}Rg, ^{277,279,281,283,285,287}Nh, ^287,289,291Mc, ²⁹³Ts, ^295,297119, ^{256,258,260,262,264,266,268,270}Db, ^{260,262,264,266,268,270,272,274}Bh, ^{266,268,270,272,274,276,278}Mt, ^{272,274,276,278,280,282}Rg, ^{278,280,282,284,286}Nh, ^286,288,290Mc, ^292,294Ts, ^294,296119(α), ^{221,222,223,224}Ra, ²²⁶Ra, ²²⁵Ac(¹⁴C), ²²⁸Th(²⁰O), ²³⁰Th, ²³¹Pa(²⁴Ne), ²³⁰U(²²Ne), ^232,233,234U(²⁴Ne), ^234,235U, ²³⁶Pu, ²³⁸Pu(²⁸Mg), ²³⁸Pu(³²Si), ²⁴²Cm(³⁴Si), ²⁵³Rf(⁸Be), ²⁵⁷Rf(⁴⁷K), ²⁵⁸Rf(⁴⁸K), ²⁵⁵Db(⁸Be), ²⁶⁵Db(⁵⁶Ti), ²⁵⁸Sg(⁸Be), ²⁶⁰Bh(⁵⁰Ti), ²⁶⁴Hs(⁶⁴Ni), ²⁶⁷Ds(⁵⁸Fe), (⁶⁰Fe), ²⁶⁸Ds(⁶⁰Ni), ²⁶⁹Ds(⁶⁰Fe), ²⁷¹Ds(⁶²Fe), (⁶³Co), ²⁷²Ds(⁶⁴Co), (⁶⁴Ni), ²⁷³Ds(⁶⁵Co), ²⁷⁴Ds(⁶⁶Co), ²⁷⁵Ds(⁶⁷Co), ^281,282Ds(⁷⁶Zn), ²⁷²Rg(⁶²Fe), (⁶³Ni), ²⁷⁴Rg(⁶⁵Ni), ²⁷⁶Rg(⁶⁷Ni), ²⁷⁸Rg(⁶⁹Ni), ²⁸⁰Rg(⁷¹Ni), ²⁸²Rg(⁷²Cu), ^282,283Rg(⁷⁶Zn), ²⁸⁵Cn(⁷²Zn), (⁷³Zn), (⁷⁵Zn), (⁷⁷Zn), ²⁸⁶Cn(⁴⁸Ca), (⁷⁴Ni), (⁷⁸Ni), ²⁸⁶Nh(⁴⁹Ca), (⁵⁰Ca), (⁷⁴Cu), (⁷⁵Cu), (⁷⁶Cu), (⁷⁶Zn), (⁷⁷Zn), (⁷⁸Ga), ²⁸⁷Fl, ²⁸⁹Fl(⁴⁸Ca), (⁷⁵Cu), (⁷⁶Zn), (⁷⁷Zn), (⁷⁸Zn), (⁷⁹Zn), (⁸⁰Zn), ²⁹³Lv(⁵⁴Ti), ²⁹⁴Og(⁸Be), ¹²O, ¹⁶Ne, ¹⁹Mg, ⁴⁵Fe, ⁴⁸Ni, ⁵⁴Zn, ⁶⁷Kr(2p); calculated T_1/2. Comparison with available data.

doi: 10.1016/j.nuclphysa.2022.122427

2022XI08

Nucl.Phys. A1028, 122528 (2022)

F.Xing, H.Qi, J.Cui, Y.Gao, Y.Wang, J.Gu, G.Yong

An improved Gamow-like formula for α-decay half-lives

RADIOACTIVITY ^{214,215,216,217,218}U, ^{219,220,221,222,223,224}Np, ^{221,222,223,224,225,226,227}Pu, ^{224,225,226,227,228}Am, ^231,232Cm, ^{233,234,235,236,237,238,239,240,241,242}Bk, ^234,235,236Cf, ^237,238,239Es, ^{239,240,241,242,243,244}Fm, ^241,242,243Md, ^{246,247,248,249,250}No, ^249,250,251Lr, ^{251,252,253,254}Rf, ^253,254,255Db, ^256,257,258Sg, ^{258,259,260,261,262,263}Bh, ^261,262Hs, ^263,264,265Mt, ^{261,262,263,264,265,266}Ds, ^{266,267,268,269,270,271,272,273}Rg, ^{270,271,272,273,274,275,276}Cn, ^{272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290}Nh, ^{278,279,280,281,282,283,284,285,286,287,288,289,290,291}Fl, ^{281,282,283,284,285,286,287,288,289,290,291,292}Mc, ^{283,284,285,286,287,288,289}Lv, ^{285,286,287,288,289,290,291,292}Ts, ^{288,289,290,291,292,293}Og, ²⁹⁵Og, ^{290,291,292,293,294,295,296}119, ^{291,292,293,294,295,296,297,298,299,300}120, ^{287,288,289,290,291}Og, ^283,284Lv, ^279,280,281Fl, ^275,276Cn, ^271,272,273Ds, ²⁹⁴120, ^268,269Hs, ^264,265Sg, ²⁸¹Fl(α); calculated T_1/2; deduced an improved Gamow-like (IMGL) formula parameters. Comparison with available data.

doi: 10.1016/j.nuclphysa.2022.122528