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NSR database version of April 29, 2024.

Search: Author = I.Silisteanu

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2021SI07      Rom.J.Phys. 66, 303 (2021)

I.Silisteanu, C.I.Anghel

Alpha-Decay Half-Lives at the Magic Shell Closures

RADIOACTIVITY ¹⁰⁴Te, ²¹²Po, ²⁷⁴Ds, ^296,308122(α); calculated Q-values, T_1/2, proton and neutron single-particle states.

2019ZA04      Rom.J.Phys. 64, 304 (2019)

M.Zadehrafi, M.R.Pahlavani, I.Silisteanu, C.I.Anghel

A=14 Accompanied Ternary Fission of ²⁴²Pu in the Collinear and Equatorial Geometries Using Proximity and Yukawa Potentials

NUCLEAR REACTIONS ²⁴²Pu(n, F)¹⁴C, E cold; analyzed available data; calculated relative fission yields for ¹⁴C, fission product yields.

2018SI13      Rom.J.Phys. 63, 302 (2018)

A.O.Silisteanu, C.I.Anghel, I.Silisteanu

Half-Lives of Nuclei Around the Superheavy Nucleus ³⁰⁴120

RADIOACTIVITY ¹⁰⁴Te, ²¹²Po, ²⁷⁴Ds, ³⁰²Lv, ^293,294,295Og, ^294,295119, ^298,299,304120, ^{296,302,303,308}122(α); calculated Q-value, T_1/2. Comparison with available data.

2017AN02      Phys.Rev. C 95, 034611 (2017)

C.I.Anghel, I.Silisteanu

α decay and spontaneous fission half-lives of nuclei around ²⁷⁰Hs

RADIOACTIVITY ^{262,263,264,265,266,267,268,269,270}Rf, ^{263,264,265,266,267,268,269,270,271}Db, ^{264,265,266,267,268,269,270,271,272}Sg, ^{265,266,267,268,269,270,271,272,273}Bh, ^{266,267,268,269,270,271,272,273,274}Hs, ^{267,268,269,270,271,272,273,274,275}Mt, ^{268,269,270,271,272,273,274,275,276}Ds, ^{269,270,271,272,273,274,275,276,277}Rg, ^{270,271,272,273,274,275,276,277,278}Cn(α), (SF); calculated Q(α), total α half-lives for ground-state to ground-state α transitions, spontaneous fission half-lives, branching ratios for α and SF decays. Shell model and one-body rate theories for α decay and dynamical approach for spontaneous fission defined by the shape, height of fission barrier, the fissility, and the nuclear deformations. Comparison with available experimental data.

doi: 10.1103/PhysRevC.95.034611
Citations: PlumX Metrics

2017SI22      Rom.J.Phys. 62, 303 (2017)

I.Silisteanu, C.I.Anghel

Simple Empirical Relations for α-Decay Half Lives of Superheavy Nuclei

RADIOACTIVITY Rf, Db, Sg, Bh, Hs, Mt, Ds, Rg, Cn, Nh, Lv, Mc, Ts, Og(α); analyzed available data; deduced T_1/2 formula.

2016BU11      Nucl.Phys. A951, 60 (2016)

A.I.Budaca, R.Budaca, I.Silisteanu

Extended systematics of alpha decay half lives for exotic superheavy nuclei

COMPILATION Z=102-118(α); compiled T_1/2; deduced Q, T_1/2 systematics. Compared to data.

doi: 10.1016/j.nuclphysa.2016.03.048
Citations: PlumX Metrics

2015AN04      Rom.J.Phys. 60, 444 (2015)

C.I.Anghel, I.Silisteanu

Lifetimes of Superheavy Nuclei Around Double Magic Nucleus ²⁷⁰₁₀₈Hs¹⁶²

RADIOACTIVITY ^{262,263,264,265,266,267,268}Rf, ^{263,264,265,266,267,268,269,270,271}Db, ^{264,265,266,267,268,269,270,271,272}Sg, ^{265,266,267,268,269,270,271,272,273}Bh, ^{266,267,268,269,270,271,272,273,274}Hs, ^{267,268,269,270,271,272,273,274,275}Mt, ^{268,269,270,271,272,273,274,275,276}Ds, ^{269,270,271,272,273,274,275,276,277}Rg, ^{272,274,277,278}Cn(SF), (α); calculated T_1/2 using the systematics of data and theoretical results. Comparison with available data.

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.

2013BU19      Phys.Rev. C 88, 044618 (2013)

A.I.Budaca, I.Silisteanu

Systematic study of α-decay properties of superheavy nuclei

RADIOACTIVITY ^{251,253,254,255,256,257,259}No, ^{254,255,256,257,258,259,260}Lr, ^{255,257,259,261}Rf, ^{256,257,258,259,260,261,262,263}Db, ^{259,260,261,263,265,266,269,271}Sg, ^{262,264,266,267,270,271,272,274}Bh, ^{263,264,265,266,267,269,270,271,273,275}Hs, ^{266,268,270,274,275,276,278}Mt, ^{267,269,270,271,273,277,279,281}Ds, ^{272,274,278,279,280,282}Rg, ^{277,281,283,285}Cn, ^{278,282,283,284,285,286}Nh, ^{286,287,288,289}Fl, ^{287,288,289,290}Mc, ^{290,291,292,293}Lv, ^293,294Ts, ^294,295Og, ^298,299120(α); calculated half-lives for superheavy nuclei (SHN). Shell-model rate theory with α clustering and resonance scattering amplitudes given by self-consistent models for nuclear structure and reaction dynamics. Brown relationship for α-decay half-life and Q(α). Simple fit formulas proposed for α-decay half-lives. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.044618
Citations: PlumX Metrics

2013SI04      At.Data Nucl.Data Tables 98, 1096 (2013)

I.Silisteanu, A.I.Budaca

Structure and α-decay properties of the heaviest nuclei

NUCLEAR STRUCTURE Z=102-120; calculated T_1/2; deduced Brown systematics. Microscopic shell model.

doi: 10.1016/j.adt.2011.12.007
Citations: PlumX Metrics

2013SI27      Rom.J.Phys. 58, 1198 (2013)

I.Silisteanu, A.I.Budaca

Study of α-Radioactivity of Superheavy Nuclei

RADIOACTIVITY ^{267,269,270,271,273,277,279,281}Ds(α); calculated T_1/2. Shell model, comparison with experimental data.

2012BU12      J.Phys.:Conf.Ser. 337, 012022 (2012)

A.-I.Budaca, I.Silisteanu

Study of α-Decay Properties of Superheavy Nuclei

RADIOACTIVITY Z=102-118, 120(α); compiled T_1/2; deduced systematics.

doi: 10.1088/1742-6596/337/1/012022
Citations: PlumX Metrics

2012SI02      Rom.J.Phys. 57, 493 (2012)

I.Silisteanu, A.I.Budaca

Alpha-Decay Data of Superheavy Nuclei as a Source of Information about Nuclear States

RADIOACTIVITY ²⁸⁶Fl, ²⁸¹Cn, ²⁷⁷Ds, ²⁷³Hs, ²⁶⁹Sg, ²⁸²Nh, ²⁷⁸Rg, ²⁷⁴Mt, ²⁷⁰Bh(α); calculated T_1/2. Comparison with experimental data.

2010SI27      Rom.J.Phys. 55, 1088 (2010)

I.Silisteanu, A.I.Budaca, A.O.Silisteanu

Systematics of α-Decay Half-Lives of the Heaviest Elements

RADIOACTIVITY ^{253,254,255,256,257,259}No, ^{254,255,256,257,258,259,260}Lr, ^{255,256,257,258,259,260,261}Rf, ^{256,257,258,259,260,261,262,263}Db, ^{259,260,261,263,265,266,271}Sg, ^{261,262,264,266,267,272,274}Bh, ^{264,265,266,267,269,270}Hs, ^{266,268,270,275,276,278}Mt, ^{267,269,270,271,273,279}Ds, ^{272,274,279,280,282}Rg, ^277,283,285Cn, ^{278,283,284,285,286}Nh, ^{286,287,288,289}Fl, ^{287,288,289,290}Mc, ^{290,291,292,293}Lv, ^293,294Ts, ^294,295Og, ^298,299120(α); calculated T_1/2. Comparison with experimental data.

2007SI32      Rom.J.Phys. 52, 775 (2007)

I.Silisteanu

Contributions of Aureliu Sandulescu to the Theory of Alpha Decay

2007SI33      Rom.J.Phys. 52, 807 (2007)

I.Silisteanu, A.Sandru, A.O.Silisteanu, B.Popovici, A.Neacsu

Theoretical Approaches to Clustering and Fine Structure in Heaviest Elements

2001SI03      Nucl.Phys. A679, 317 (2001)

I.Silisteanu, W.Scheid, A.Sandulescu

Proton, Alpha and Cluster Decay Rates for Nuclei with 52 ≤ Z ≤ 56 and 52 ≤ N ≤ 60

RADIOACTIVITY ¹⁰⁵Sb, ¹⁰⁹I, ^112,113Cs, ¹¹⁴Ba(p); ¹¹⁴Ba(2p); ^{106,107,108,109,110}Te, ^{110,111,112,113}I, ^{110,111,112,113}Xe, ^{112,113,114,115}Cs, ^{113,114,115,116}Ba(α); ^{113,114,115,116,117,118}Ba(¹²C); calculated T_1/2. comparisons with data.

NUCLEAR STRUCTURE Z=52-56; Z=84-88; analyzed decay energies, lifetimes; deduced systematic features.

doi: 10.1016/S0375-9474(00)00336-5
Citations: PlumX Metrics

1996SI20      Roum.J.Phys. 41, 43 (1996)

I.Silisteanu, W.Scheid

Evidence for Similar Alpha and Cluster Decay Properties in the Trans-Tin and Trans-Lead Regions

RADIOACTIVITY ¹⁰⁶Te, ¹²⁰Xe, ¹¹³I, ¹¹⁵Cs, ¹¹⁴Ba, ²¹⁴Po, ²¹⁸Rn, ²²¹At, ²²⁷Ra, ²²¹Fr; analyzed, calculated α-decay T_1/2. ^{222,221,223,224,225,226}Ra(¹⁴C); ^{114,113,115,116,117,118}Ba(¹²C); calculated cluster decay T_1/2. Other nuclei, other decays also considered.

1995SI05      Phys.Rev. C51, 2023 (1995)

I.Silisteanu, W.Scheid

Half-Lives of Cluster Radioactivity within a Model Including Superfluid Phenomena and Resonance Effects

RADIOACTIVITY ²²¹Fr, ^{221,222,223,224,226}Ra, ²²⁵Ac(¹⁴C); ²³¹Pa(²³F); ²³⁰Th, ²³¹Pa, ^232,233,234U(²⁴Ne); ²³²Th, ²³⁴U(²⁶Ne); ²³³U(²⁵Ne); ²³⁴U, ²³⁸Pu(²⁸Mg); ²³⁸Pu(³²Si); ²⁴¹Am(³⁴Si); calculated cluster decay T_1/2. Continuum hopping model, superfluid phenomena, resonance effects.

doi: 10.1103/PhysRevC.51.2023
Citations: PlumX Metrics

1993SC38      Roum.J.Phys. 38, 331 (1993)

W.Scheid, I.Silisteanu, A.Sandulescu

Lifetimes of Cluster Radioactivity of Neutron Deficient Trans-Tin Isotopes

RADIOACTIVITY A=114-241; analyzed cluster decay T_1/2 vs Q data. ¹¹⁴Ba deduced ¹²C-decay T_1/2, branching ratio relative to α-decay.

1993SI26      Roum.J.Phys. 38, 55 (1993)

I.Silisteanu, M.Ivascu, I.Rotter

The Excitation of Collective Modes in Heavy Fragment Radioactivity

RADIOACTIVITY ²²¹Fr, ^{221,222,223,224,226}Ra, ²²⁵Ac(¹⁴C); ²³¹Pa(²³F); ^230,232Th, ²³¹Pa, ^234,232,233U(²⁴Ne); ²³³U(²⁵Ne); ²³⁴U(²⁶Ne); ²³⁴U, ²³⁸Pu(²⁸Mg); ²³⁷Np, ²³⁸Pu(³⁰Mg); ²³⁸Pu(³²Si); ²⁴¹Am(³⁴Si); calculated cluster decay resonance width, decay T_1/2. Collective mode excitation, microscopic, macroscopic method.

1993SI27      Roum.J.Phys. 38, 329 (1993)

I.Silisteanu, W.Scheid, M.Ivascu

Alpha and ¹²C Emission Energies of ¹¹⁴Ba

RADIOACTIVITY ¹¹⁴Ba(α), (¹²C); analyzed Qα data in other Ba, Cs, Xe, I, Te isotopes; deduced α-, ¹²C-decay Qα, mass excess.

1990IV01      Fiz.Elem.Chastits At.Yadra 21, 1405 (1990); Sov.J.Part.Nucl. 21, 599 (1990)

M.Ivascu, I.Silisteanu

Cluster Radioactivity Half-Lives

RADIOACTIVITY A=221-252; compiled, reviewed cluster decay T_1/2 data, model results.

1989SI13      J.Phys.(London) G15, 1405 (1989)

I.Silisteanu, M.Ivascu

Estimates of the Influence of Nuclear Deformations on the Lifetimes of Heavy-Fragment Radioactivities

RADIOACTIVITY ^234,232U(²⁴Ne); ²³⁴U, ²³⁴Pu(²⁸Mg); ²⁴¹Am, ²³⁷Np(³⁰Mg); ^240,246Cm, ²⁴⁰Pu, ²⁴¹Am(³⁴Si); calculated fragment emission energy, T_1/2; deduced deformations role.

doi: 10.1088/0954-3899/15/9/010
Citations: PlumX Metrics

1988IV02      Nucl.Phys. A485, 93 (1988)

M.Ivascu, I.Silisteanu

The Microscopic Approach to the Rates of Radioactive Decay by Emission of Heavy Clusters

RADIOACTIVITY ^{222,223,224,226}Ra, ²³¹Pa, ^232,233U(α), (¹²C), (²⁴Ne); calculated α-, cluster-decay T_1/2, ratios, spectroscopic factor, Γ ratios. Microscopic model.

doi: 10.1016/0375-9474(88)90524-6
Citations: PlumX Metrics

1988SI09      Rev.Roum.Phys. 33, 267 (1988)

I.Silisteanu, R.G.Nazmitdinov

The Instability of Rapidly Rotating Nuclei Towards Emission of α-Particles

RADIOACTIVITY ⁷⁴Kr, ¹²²Xe(α); calculated T_1/2, emission rates.

1987IV01      Rev.Roum.Phys. 32, 549 (1987)

M.Ivascu, A.Sandulescu, I.Silisteanu

On the Rates of Radioactive Decays by Emission of Heavy Clusters

RADIOACTIVITY ^{222,223,224,226}Ra(¹⁴C), ²³¹Pa, ^232,233U(²⁴Ne); calculated T_1/2, branching ratios, one-body resonance widths, cluster spectroscopic factors. Microscopic-macroscopic method.

1986NA02      Yad.Fiz. 43, 58 (1986)

R.G.Nazmitdinov, I.Silisteanu

α Decay of Fast Rotating Nuclei

RADIOACTIVITY ¹²²Xe(α); calculated T_1/2, α-formation factor. Fast rotating nuclei.

1983SI16      Rev.Roum.Phys. 28, 331 (1983)

I.Silisteanu

Alpha Decay Rates of Neutron Deficient Trans-Tin Isotopes

RADIOACTIVITY ^{106,107,108,109,110}Te, ^{108,109,110,111,112,113}I, ^{108,109,110,111,112,113}Xe, ^{109,110,111,112,113,114,115}Cs, ^{110,111,112,113,114,115,116}Ba; calculated Eα, T_1/2, α-decay rates. Unified theory, one-body, shell model approaches.