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NSR database version of May 2, 2024.

Search: Author = R.A.Kuzyakin

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2015KU19      Phys.Rev. C 92, 014603 (2015)

R.A.Kuzyakin, V.V.Sargsyan, G.G.Adamian, N.V.Antonenko

Entrance channel effects on sub-barrier capture

NUCLEAR REACTIONS ¹⁵²Sm(¹⁶O, X), E(cm)=45-75 MeV; ¹⁸⁴W(¹⁶O, X), E(cm)=58-88 MeV; ¹⁷⁵Lu(¹⁹F, X), E(cm)=60-93 MeV; ¹⁰⁰Mo(⁶⁴Ni, X), E(cm)=118-162 MeV; ⁵⁸Ni(⁶⁰Ni, X), E(cm)=87-121 MeV; ^90,94Zr(³²S, X), E(cm)=73.2, 78.2, 83.2 MeV; ^90,94Zr(⁴⁰Ca, X), E(cm)=90.7, 95.7, 100.7 MeV; ¹⁴⁴Sm(¹²C, X), ⁹²Zr(⁶⁴Ni, X), E(cm)-V_b=-12 to 35 MeV; ¹⁴⁴Nd(¹⁶O, X), ¹²³Sb(³⁷Cl, X), ⁹⁶Zr(⁶⁴Ni, X), ⁸⁰Se(⁸⁰Se, X), E(cm)-V_b=-13 to 26 MeV; ¹⁴²Ce(²⁸Si, X), ¹³⁸Ba(³²S, X), ¹²²Sn(⁴⁸Ti, X), E(cm)-V_b=-12 to 38 MeV; ²⁰⁴Pb(¹²C, X), ¹⁸⁶W(³⁰Si, X), ¹⁶⁸Er(⁴⁸Ca, X), E(cm)-V_b=-20-40 MeV; ²⁰⁴Pb(¹⁶O, X), ¹⁸⁶W(³⁴S, X), ¹⁷⁰Er(⁵⁰Ti, X), ¹²⁴Sn(⁹⁶Zr, X), E(cm)-V_b=-17 to 26 MeV; ¹⁴⁴Nd(¹⁶O, X), E(cm)-V_b=13 MeV; ⁹⁶Zr(⁶⁴Ni, X), E(cm)-V_b=11 MeV; calculated capture σ(E), partial capture cross sections and the mean angular momenta for compound nuclei of ^156,160Er, ¹⁷⁰Hf, ²⁰⁰Pb, ²¹⁶Ra and ²²⁰Th; investigated deformation, neutron transfer, and entrance channel mass (charge) asymmetry effects. Quantum diffusion approach. Comparison with experimental data.

doi: 10.1103/PhysRevC.92.014603
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2013KU05      Acta Phys.Pol. B44, 471 (2013)

R.A.Kuzyakin, V.V.Sargsyan, G.G.Adamian, N.V.Antonenko

Study of Isotopic Effects in Capture Process

NUCLEAR REACTIONS ^144,150,154Sm(⁴⁸Ca, X), ¹⁵⁴Sm(⁴⁰Ca, X), E(cm)<150 MeV; calculated σ.

doi: 10.5506/APhysPolB.44.471
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2013KU16      Phys.Atomic Nuclei 76, 716 (2013); Yad.Fiz. 76, 766 (2013)

R.A.Kuzyakin, V.V.Sargsyan, G.G.Adamian, N.V.Antonenko

Total and partial capture cross sections in reactions with deformed nuclei at energies near and below the Coulomb barrier

NUCLEAR REACTIONS ¹¹²Cd(¹⁶O, X), E(cm)<50 MeV;¹⁵²Sm(¹⁶O, X), E(cm)<75 MeV;¹⁸⁴W(¹⁶O, X), E(cm)<85 MeV;⁶⁴Ni(⁶⁴Ni, X), E(cm)<110 MeV;⁹²Zr(⁶⁴Ni, X), E(cm)<156 MeV;⁹⁶Zr(⁶⁴Ni, X), E(cm)<156 MeV;¹⁷⁵Lu(¹⁹F, X), E(cm)<90 MeV;⁹⁴Mo(²⁸Si, X), E(cm)<95 MeV;¹⁵⁴Sm(²⁸Si, X), E(cm)<120 MeV;⁶⁴Ni(⁵⁸Ni, X), E(cm)<110 MeV;¹⁰⁰Mo(⁶⁴Ni, X), E<160 MeV;⁹⁶Zr(⁴⁰Ca, X), E(cm)<110 MeV;⁹⁰Zr(⁴⁸Ca, X), E(cm)<115 MeV; calculated total and partial capture σ and the mean angular momenta of the captured systems. Quantum diffusion approach, comparison with available data.

doi: 10.1134/S1063778813060094
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2013KU17      Bull.Rus.Acad.Sci.Phys. 77, 803 (2013); Izv.Akad.Nauk RAS, Ser.Fiz 77, 886 (2013)

R.A.Kuzyakin, V.V.Sargsyan, G.G.Adamian, N.V.Antonenko, E.E.Saperstein, S.V.Tolokonnikov

Study of isotopic chain capture

NUCLEAR REACTIONS ^{196,200,204,208}Pb(¹⁶O, X), E(cm)<100 MeV; ^{196,200,204,208}Pb(⁴⁸Ca, X), E(cm)<190 MeV; ^152,154Sm(¹⁶O, X), E(cm)<75 MeV; calculated σ, mean-square angular momenta. Double-folding formalism with the effective Migdal nucleon-nucleon interaction, comparison with experimental data.

doi: 10.3103/S1062873813070150
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2012GO27      J.Phys.:Conf.Ser. 381, 012089 (2012)

I.I.Gontchar, R.A.Kuzyakin, E.G.Pavlova, N.E.Aktaev

The nuclear fission process as Brownian motion: modifying the Kramers fission rates

doi: 10.1088/1742-6596/381/1/012089
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2012KU12      Phys.Rev. C 85, 034612 (2012)

R.A.Kuzyakin, V.V.Sargsyan, G.G.Adamian, N.V.Antonenko, E.E.Saperstein, S.V.Tolokonnikov

Isotopic trends of capture cross section and mean-square angular momentum of the captured system

NUCLEAR REACTIONS ^{196,200,204,208}Pb(α, X), E(cm)=13-40 MeV; ^{196,200,204,208}Pb(¹⁶O, X), E=60-105 MeV; ^{196,200,204,208}Pb(³⁶S, X), E(cm)=130-175 MeV; ^{196,200,204,208}Pb(⁴⁸Ca, X), E(cm)=165-195 MeV; ^70,72,74,76Ge(¹⁶O, X), E(cm)=25-50 MeV; calculated nucleus-nucleus interaction potentials, diffuseness parameter as function of mass number, Coulomb barriers, capture cross sections, mean-square angular momenta, astrophysical S factor. Quantum diffusion approach. Comparison with experimental data.

doi: 10.1103/PhysRevC.85.034612
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2012KU17      Phys.Atomic Nuclei 75, 439 (2012); Yad.Fiz. 75, 475 (2012)

R.A.Kuzyakin, V.V.Sargsyan, G.G.Adamian and N.V.Antonenko

Quantum diffusion description of the subbarrier-capture process in heavy-ion reactions

NUCLEAR REACTIONS ²⁰⁸Pb, ²⁰⁹Bi(¹⁶O, X), (²²Ne, X), (⁴⁸Ca, X), (⁵⁰Ti, X), (α, X), (³⁶S, X), E(cm)<200 MeV;calculated subbarrier-capture σ. Comparison with available data.

doi: 10.1134/S1063778812030118
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2011GO19      Phys.Rev. C 84, 014617 (2011)

I.I.Gontchar, R.A.Kuzyakin

Integral Kramers formula for the fission rate versus dynamical modeling: The case of deformation-dependent temperature

NUCLEAR STRUCTURE ²³²U, ²¹⁴Ra, ²⁰⁸Pb; calculated quasistationary fission (Kramers) rates from excited nuclei using approximate analytical formulas, accounting for the microcanonical nature of the fission process. Comparison with dynamical rates deduced from Smoluchowski equation. Discussed accuracy of the Kramers rates.

doi: 10.1103/PhysRevC.84.014617
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