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NSR database version of April 29, 2024.

Search: Author = E.G.Ryabov

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2017MA17      Eur.Phys.J. A 53, 79 (2017); Erratum Eur.Phys.J. A 53, 144 (2017)

K.Mazurek, P.N.Nadtochy, E.G.Ryabov, G.D.Adeev

Fission fragment distributions within dynamical approach

RADIOACTIVITY ²²⁴Th, ^248,250Cf(SF); calculated fission, deformation, shapes, fission fragment mass distribution, charge distribution, angular distribution anisotropy. ²²⁴Th, ²⁴⁸Cf, ²⁵⁴Fm, ²⁶⁴Rf(SF); calculated angular distribution anisotropy. Langevin equations with statistical description of nuclear evaporation. Compared with available data.

NUCLEAR REACTIONS ²³²Th(¹⁶O, f), E=128 MeV;²³⁸U(¹²C, f), E calculated fission fragment mass-energy distribution. ¹²C(⁹³Nb, f), E=1060 MeV;^144,154Sm(¹⁸O, f), E=158.8 MeV;¹⁹⁷Au(¹⁸O, f), E=158.4 MeV;²⁰⁸Pb(¹⁶O, f), E=108 MeV;²³²Th(¹⁶O, f), E=128 MeV;²³⁸U(¹⁸O, f), E=159 MeV;²⁴⁰Pu(²⁰Ne, f), E=174 MeV;²⁴⁶Cm(¹⁸O, f), E=102.5 MeV; calculated fission fragment mass distribution, variance of the distribution, neutron multiplicity, fragment kinetic energy. ²⁷Al(⁸⁶Kr, f), E=5.9, 10.6 MeV/nucleon;²³²Th(²⁰Ne, f), E=1.25 MeV/nucleon;²³⁸U(²²Ne, f), E=132, 162 MeV; calculated fission σ, mass and charge distribution. FRLDM (Finite-Range Liquid Drop Model), LSD (Lublin-Strasbourg Drop); compared with available data.

doi: 10.1140/epja/i2017-12262-1
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2016NA46      Eur.Phys.J. A 52, 308 (2016)

P.N.Nadtochy, E.G.Ryabov, A.V.Cheredov, G.D.Adeev

Dissipation of the tilting degree of freedom in heavy-ion-induced fission from four-dimensional Langevin dynamics

NUCLEAR STRUCTURE ²⁴⁸Cf; calculated fission barrier vs I, vs K using four-dimensional Langevin fission dynamics.

NUCLEAR REACTIONS ¹⁸³W, ²³²Th(¹⁶O, F), E=90-160 MeV; calculated fission fragment mass distribution, variance, neutron mean multiplicity, mean total kinetic energy, unnormalized σ(θ). ¹⁸⁸Os(¹⁶O, F), E=84, 89, 94, 99 MeV; calculated fusion-fission σ(θ) using four-dimensional Langevin fission dynamics.

doi: 10.1140/epja/i2016-16308-6
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2015RY03      Acta Phys.Pol. B46, 579 (2015)

E.G.Ryabov, P.N.Nadtochy, G.D.Adeev

Analysis of Experimental Data from Fusion-fission Reactions Within Four-dimensional Langevin Dynamics

RADIOACTIVITY ²²⁴Th, ²⁴⁸Cf, ²⁵²Fm(SF); calculated deformation-dependent parameters, mean kinetic energy, fission fragment mass variance and fission fragment mean fragment total kinetic energy variance. 4-D model.

doi: 10.5506/APhysPolB.46.579
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2014NA03      Phys.Rev. C 89, 014616 (2014)

P.N.Nadtochy, E.G.Ryabov, A.E.Gegechkori, Yu.A.Anischenko, G.D.Adeev

Incorporation of a tilting coordinate into the multidimensional Langevin dynamics of heavy-ion-induced fission: Analysis of experimental data from fusion-fission reactions

NUCLEAR REACTIONS ⁹³Nb(¹²C, X)¹⁰⁵Ag*, E=1060 MeV; ¹⁴⁴Sm(¹⁸O, X)¹⁶²Yb*, E=158.8 MeV; 18O ¹⁵⁴Sm(¹⁸O, X)¹⁷²Yb*, E=158.8 MeV; ¹⁸⁴W(¹⁶O, X)²⁰⁰Pb*, E=91.6, 97.7, 102.5, 107.9 MeV; ¹⁹⁷Au(¹⁸O, X)²¹⁵Fr*, E=158.4 MeV; ²⁰⁸Pb(¹⁶O, X)²²⁴Th*, E=108 MeV; ²³²Th(¹⁶O, X)²⁴⁸Cf*, E=128 MeV; ²³⁸U(¹⁶O, X)²⁵⁴Fm*, E=90, 96, 110, 114, 130, 140, 148, 215, 250 MeV; ²⁴⁸Cm(¹⁶O, X)²⁶⁴Rf*, E=110, 130, 148 MeV; ²⁴⁰Pu(²⁰Ne, X)²⁶⁰Rf*, E=142, 174 MeV; ²⁴⁶Cm(¹⁸O, X)²⁶⁴Rf*, E=102.5 MeV; ²³⁸U(¹⁸O, X)²⁵⁶Fm*, E=159 MeV; calculated fission rates, fission time distributions, fission fragment charge and mass-energy distributions (MEDs), mean total kinetic energy, mean multiplicity of prescission neutrons, and anisotropy of fission fragment angular distributions. 4D dynamical model based on the 3D model with the inclusion of tilting degree of freedom into Langevin dynamics. Comparison with experimental data.

doi: 10.1103/PhysRevC.89.014616
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2012NA12      Phys.Rev. C 85, 064619 (2012)

P.N.Nadtochy, E.G.Ryabov, A.E.Gegechkori, Yu.A.Anischenko, G.D.Adeev

Four-dimensional Langevin dynamics of heavy-ion-induced fission

NUCLEAR REACTIONS ²⁰⁸Pb(¹⁶O, X)²²⁴Th*, E=90, 110, 130, 148, 215 MeV; ²³²Th(¹⁶O, X)²⁴⁸Cf*, E=90, 95, 120, 140, 160 MeV; calculated Helmholtz free energy (F), second derivative of F with respect to the mass asymmetry coordinate (stiffness), saddle-point configuration quadrupole moments, fusion-fission cross section, evaporation residue cross section, prescission neutron multiplicity, fission fragment angular distributions. Four-dimensional Langevin dynamics of heavy-ion induced fission with dynamical evolution of orientation degree of freedom (K coordinate). Comparison with experimental data.

doi: 10.1103/PhysRevC.85.064619
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2008RY05      Phys.Rev. C 78, 044614 (2008)

E.G.Ryabov, A.V.Karpov, P.N.Nadtochy, G.D.Adeev

Application of a temperature-dependent liquid-drop model to dynamical Langevin calculations of fission-fragment distributions of excited nuclei

NUCLEAR STRUCTURE ^156,159,162Yb, ^184,185Pt, ¹⁹⁵Hg, ²²⁴Th, ²⁴⁴Cm, ²⁴⁸Cf, ²⁵⁴Fm, ²⁶⁴Rf; calculated potential energy surfaces, σ, fission fragment distributions using stochastic approach.

doi: 10.1103/PhysRevC.78.044614
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2007RY01      Phys.Part. and Nucl.Lett. 4, 29 (2007); Pisma Zh.Fiz.Elem.Chast.Atom.Yadra No.1 [137], 54 (2007)

E.G.Ryabov, A.V.Karpov, G.D.Adeev

Analysis of Angular Momentum Dependence of Fission Fragment Mass-Energy Distribution Within Langevin Dynamics

NUCLEAR STRUCTURE ¹⁶²Yb, ¹⁸⁴Pt, ²⁴⁴Cm; calculated fission fragments mass-energy distributions vs excitation energy. Three-dimensional Langevin calculations.

doi: 10.1134/S1547477107010062
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2006RY01      Nucl.Phys. A765, 39 (2006)

E.G.Ryabov, A.V.Karpov, G.D.Adeev

Influence of angular momentum on fission fragment mass distribution: Interpretation within Langevin dynamics

NUCLEAR STRUCTURE ²⁴⁴Cm, ¹⁸⁴Pt, ¹⁶²Yb; calculated fission fragment mass distributions, angular momentum dependence, fission barriers, neutron binding energies, prescission neutron multiplicities, fission and neutron widths. Finite-range liquid-drop model, three-dimensional Langevin dynamics, comparisons with data.

doi: 10.1016/j.nuclphysa.2005.10.005
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2005RY04      Yad.Fiz. 68, 1583 (2005); Phys.Atomic Nuclei 68, 1525 (2005)

E.G.Ryabov, G.D.Adeev

Static and Statistical Properties of Hot Rotating Nuclei in a Macroscopic Temperature-Dependent Finite-Range Model

NUCLEAR STRUCTURE ¹⁰⁹Ag, ²²⁴Th, ³⁰⁶Lv; Z=50-112; calculated level density parameters. ²²⁰Fr, ²⁴⁰Pu; A=60-300; calculated fission barrier parameters. Other properties of hot rotating nuclei discussed.

doi: 10.1134/1.2053335
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2004KA29      Nucl.Phys. A734, E37 (2004)

A.V.Karpov, P.N.Nadtochy, E.G.Ryabov, D.V.Vanin, G.D.Adeev

Level-density parameter of hot rotating fissioning nuclei within the finite-range liquid-drop model

NUCLEAR STRUCTURE Z=47-116; ¹⁰⁹Ag, ³⁰⁶Lv; calculated level density parameters. Finite-range liquid-drop model.

doi: 10.1016/j.nuclphysa.2004.03.014
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2003KA44      J.Phys.(London) G29, 2365 (2003)

A.V.Karpov, P.N.Nadtochy, E.G.Ryabov, G.D.Adeev

Consistent application of the finite-range liquid-drop model to Langevin fission dynamics of hot rotating nuclei

NUCLEAR STRUCTURE ¹⁰⁹Ag, ²²⁴Th, ³⁰⁶Lv; calculated level density parameters vs deformation. ¹⁸⁶Os; calculated fission barrier heights vs temperature and angular momentum. Generalized finite-range liquid drop model.

NUCLEAR REACTIONS ¹⁸¹Ta(¹⁹F, X), ²⁰⁸Pb(¹⁶O, X), E ≈ 20-200 MeV; calculated prescission neutron multiplicity, fission probability. Generalized finite-range liquid drop model.

doi: 10.1088/0954-3899/29/10/305
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