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NSR database version of May 8, 2024.

Search: Author = F.Koyuncu

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2022DE14      Chin.Phys.C 46, 044104 (2022)

V.Dehghani, S.A.Alavi, R.Razavi, A.Soylu, F.Koyuncu

Cluster decay half-lives using asymmetry dependent densities

RADIOACTIVITY ²²¹Fr, ^{221,222,223,224}Ra, ²²⁶Ra, ²²⁶Th(¹⁴C), ²²⁶Th(¹⁸O), ²²⁸Th(²⁰O), ²³⁰Th(²⁴Ne), ²³²Th(²⁶Ne), ²³¹Pa(²³F), (²⁴Ne), ²³⁰U(²²Ne), (²⁴Ne), ²³²U(²⁴Ne), (²⁸Mg), ²³³U(²⁴Ne), (²⁵Ne), (²⁸Mg), ²³⁴U(²⁴Ne), (²⁶Ne), (²⁸Mg), ²³⁵U(²⁴Ne), (²⁵Ne), (²⁸Mg), ²³⁶U(²⁴Ne), (²⁶Ne), (³⁰Mg), ²³⁷Np(³⁰Mg), ²³⁶Pu(²⁸Mg), ²³⁸Pu(²⁸Mg), (³⁰Mg), (³²Si), ²⁴⁰Pu, ²⁴¹Am(³⁴Si); calculated T_1/2. Comparison with available data.

doi: 10.1088/1674-1137/ac4035
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2022SO12      Int.J.Mod.Phys. E31, 2250062 (2022)

A.Soylu, F.Koyuncu, S.A.Alavi, V.Dehghani

Calculations on the proton decay with modified preformation probability

RADIOACTIVITY ^{144,145,146,147}Tm, ^150,151Lu, ^155,156,157Ta, ^159,160,161Re, ^{164,165,166,167}Ir, ^170,171Au, ^176,177Tl(p); calculated T_1/2. Comparison with available data.

doi: 10.1142/S0218301322500628
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2021AL15      Nucl.Phys. A1012, 122213 (2021)

G.Aliyeva, A.Soylu, F.Koyuncu

Search for α-decay chains for superheavy nuclei with Z=125-127

NUCLEAR STRUCTURE Z=125-127; calculated α- and SF T_1/2 within the framework of Wentzel-Kramers-Brillouin (WKB) and Bohr-Sommerfeld quantization condition. Comparison with available data.

doi: 10.1016/j.nuclphysa.2021.122213
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2021KO21      Nucl.Phys. A1012, 122211 (2021)

F.Koyuncu

A new potential model for alpha decay calculations

RADIOACTIVITY ^{106,107,108,109}Te, ¹¹³I, ^112,113Xe, ¹¹⁴Ba, ¹⁴⁴Nd, ¹⁴⁵Pm, ^146,147,148Sm, ^147,148Eu, ^{148,149,150,151,152}Gd, ^{150,151,152,153,154}Dy, ^152,154Ho, ^{152,153,154,155}Er, ^{153,154,155,156,157,158}Tm, ^{156,157,158,159,160}Hf, ¹⁶²Hf, ¹⁷⁴Hf, ¹⁵⁹W, ^{160,162,164,166}W, ¹⁸⁰W, ¹⁶⁰Re, ^162,163Re, ¹⁶²Os, ^{166,168,170,172,174}Os, ¹⁶⁹Os, ¹⁷³Os, ¹⁶⁶Ir, ^169,170Ir, ^176,177Ir, ^168,170Pt, ¹⁷¹Pt, ^{174,176,178,180}Pt, ¹⁷⁷Pt, ¹⁸¹Pt, ¹⁸³Pt, ^188,190Pt, ¹⁷⁰Au, ¹⁷⁴Au, ¹⁸³Au, ¹⁸⁵Au, ^174,176Hg, ¹⁷⁷Hg, ^{180,182,184,186,188}Hg, ¹⁸³Hg, ¹⁸⁵Hg, ^177,179Tl, ^{186,188,190,192,194}Pb, ²¹⁰Pb, ^190,192,194Po, ^{195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210}Po, ^{212,213,214,215,216}Po, ²¹⁸Po, ^{196,197,198,199,200,201,202,203,204,205,206,207,208,209}At, ²¹¹At, ^213,214,215At, ¹⁹⁵Rn, ¹⁹⁸Rn, ²⁰¹Rn, ^{203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222}Rn, ^{206,207,208,209,210}Rn, ²⁰¹Fr, ^{203,204,205,206,207,208,209}Fr, ²¹¹Fr, ²¹³Fr, ^{215,216,217,218,219}Fr, ^205,206,207Ra, ^{209,210,211,212}Ra, ²¹⁴Ra, ^216,217,218Ra, ^{220,222,224,226}Ra, ²⁰⁶Ac, ^208,209Ac, ^{211,213,215,217,219,221}Ac, ²¹⁸Ac, ²²²Ac, ²²⁷Ac, ²¹³Th, ²¹⁶Th, ^218,219,220Th, ^{222,224,226,228,230,232}Th, ^217,218,219Pa, ²²¹Pa, ²²³Pa, ^226,227Pa, ²³¹Pa, ²²⁵U, ^228,229,230U, ^232,233,234U, ^236,238U, ^{232,233,234,235,236,237,238,239,240,241,242,243,244}Pu, ^{238,239,240,241,242,243,244,245,246,247,248}Cm, ²⁴⁰Cf, ^245,246Cf, ^{248,250,252,254}Cf, ^251,253Es, ^{246,248,250,252,254,256}Fm, ^252,254,256No, ²⁶⁰Sg, ²⁶¹Bh(α); calculated T_1/2. Comparison with experimental data, UDL and UMADAC code results.

doi: 10.1016/j.nuclphysa.2021.122211
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2021SO20      Chin.Phys.C 45, 044108 (2021)

A.Soylu, F.Koyuncu, G.Gangopadhyay, V.Dehghani, S.A.Alavi

Proton radioactivity half-lives with nuclear asymmetry factor

RADIOACTIVITY ¹⁰⁹I, ^112,113Cs, ¹¹⁷La, ¹²¹Pr, ^130,131Eu, ¹³⁵Tb, ^140,141Ho, ^{144,145,146,147}Tm, ^150,151Lu, ^155,156,157Ta, ^159,160,161Re, ^164,166,167Ir, ^170,171Au, ^176,177Tl(p), ¹⁴¹Ho, ^146,147Tm, ^150,151Lu, ¹⁵⁶Ta, ^159,161Re, ^165,166,167Ir, ^170,171Au, ¹⁷⁷Tl, ²¹⁵Bi(IT), (p); analyzed available data; deduced the dependence of proton emission T_1/2 on the nuclear asymmetry parameter.

doi: 10.1088/1674-1137/abe03f
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2020GH06      Phys.Rev. C 102, 014610 (2020)

F.Ghorbani, S.A.Alavi, V.Dehghani, A.Soylu, F.Koyuncu

Heavy ion fusion reaction cross section: Analysis of the temperature dependence of the repulsive nuclear potential

NUCLEAR REACTIONS ⁶³Cu(¹⁸O, X), E(cm)=30-52 MeV; ¹⁹⁴Pt(¹⁸O, X), E(cm)=71-90 MeV; ²⁰⁸Pb(¹⁶O, X), E(cm)=70-100 MeV; ¹⁴¹Pr(¹²C, X), E(cm)=45-100 MeV; calculated repulsive nuclear potential strength as function of temperature, fusion parameters and barrier heights, fusion σ(E) using Wong formula with double-folding potentials (M3Y) and corrected temperature-dependent repulsive nuclear potential. Comparison with experimental data.

doi: 10.1103/PhysRevC.102.014610
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2020KO25      Int.J.Mod.Phys. E29, 2050053 (2020)

F.Koyuncu, A.Soylu

The alpha-decay chains and decay mode predictions of the nuclei Z=118, 119 and 120

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

doi: 10.1142/S0218301320500536
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2020SO24      Acta Phys.Pol. B51, 2125 (2020)

A.Soylu, F.Koyuncu, S.A.Alavi, V.Dehghani

Proton-radioactivity Half-life Formulas with Isospin and Shell Effects

RADIOACTIVITY ¹⁰⁹I, ^112,113Cs, ¹¹⁷La, ¹²¹Pr, ^130,131Eu, ¹³⁵Tb, ^140,141Ho, ^{144,145,146,147}Tm, ^150,151Lu, ^155,156,157Ta, ^159,160,161Re, ¹⁶⁴Ir, ^166,167Ir, ¹⁷⁰Au, ^176,177Tl(p), ¹⁴¹Ho, ^146,147Tm, ^150,151Lu, ¹⁵⁶Ta, ¹⁵⁹Re, ¹⁶¹Re, ^165,166,167Ir, ^170,171Au, ¹⁷⁷Tl, ¹⁸⁵Bi(p), ^103,104,105Sb, ¹⁰⁸I, ¹¹¹Cs, ^116,117La, ¹²⁷Pm, ¹²⁹Pm, ¹³⁷Tb, ^{161,163,165,167,169,171}Ir, ¹⁶⁹Au, ¹⁷¹Au, ¹⁸⁵Bi, ²¹¹Pa, ^{195,196,197,198,199,200,201,202,203,204,205,206,207}Ac, ^198,199Th, ^{200,201,202,203,204,205,206,207,208,209}Pa, ^212,213Pa, ²⁰³U, ^{206,207,208,209,210,211,212,213,214,215,216,217}Np, ²⁰⁹Pu, ^{212,213,214,215,216,217,218,219,220,221,222,223,224}Am, ²¹⁵Cm, ^{218,219,220,221,222,223,224,225,226,227}Bk, ²²¹Cf, ^{224,225,226,227,228,229,230,231}Es, ^{229,230,231,232,233,234,235,236,237,238,239}Md, ^232,233No, ^{235,236,237,238,239,240,241,242,243}Lr(p); analyzed available data; calculated T_1/2; deduced parameters.

doi: 10.5506/aphyspolb.51.2125
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2019SO14      Eur.Phys.J. A 55, 118 (2019)

A.Soylu, F.Koyuncu

The predictions on the heavier cluster decays of superheavy nuclei

doi: 10.1140/epja/i2019-12790-6
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2018KO14      Chin.Phys.C 42, 054106 (2018)

F.Koyuncu, A.Soylu

Screening effects on ¹²C+¹²C fusion reaction

NUCLEAR REACTIONS ¹²C(¹²C, X)²⁴Mg, E<6 MeV; calculated resonant energy states, S-factor; deduced electron screening parameters. Comparison with available data.

doi: 10.1088/1674-1137/42/5/054106
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2017KO40      Int.J.Mod.Phys. E26, 1750086 (2017)

F.Koyuncu, A.Soylu

Investigation of Sub-Coulomb barrier fusion reaction of α + ⁴⁰Ca in different models

NUCLEAR REACTIONS ⁴⁰Ca(α, X), E<5 MeV; calculated σ, reaction rates using WKB method with Talys code. Comparison with Reaclib values.

doi: 10.1142/S0218301317500860
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