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Search: Author = A.S.Molev

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2022BE04      Acta Phys.Pol. B53, 2-A1 (2022)

Yu.A.Berezhnoy, A.S.Molev

S-matrix Description of Refractive Effects in One-nucleon Stripping Reactions Induced by α-particles on ²⁸Si

NUCLEAR REACTIONS ²⁸Si(α, ³He), (α, t), E=50-120 MeV; analyzed available data; deduced σ, σ(θ), S-matrix parameters, Airy minima.

doi: 10.5506/APhysPolB.53.2-A1
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2018BE26      Int.J.Mod.Phys. E27, 1850061 (2018)

Yu.A.Berezhnoy, A.S.Molev, G.M.Onyshchenko, V.V.Pilipenko

Unified S-matrix analysis of Airy structures in α + ²⁴Mg elastic and inelastic scattering

NUCLEAR REACTIONS ²⁴Mg(α, α), (α, α'), E=50-224 MeV; calculated σ(θ) using the six-parameter S-matrix model. Comparison with available data.

doi: 10.1142/S0218301318500611
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2018BE27      Int.J.Mod.Phys. E27, 1850066 (2018)

Yu.A.Berezhnoy, A.S.Molev

Strong absorption model with antisymmetric S-matrix

NUCLEAR REACTIONS ¹²C, ¹⁶O, ²⁸Si(p, p), (n, n), E<135 MeV; analyzed available data; deduced σ, phase shifts, S-matrix parameters.

doi: 10.1142/S0218301318500660
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2018KO09      Phys.Rev. C 97, 034606 (2018)

V.Yu.Korda, A.S.Molev, L.P.Korda, V.F.Klepikov

Systematic model-independent S-matrix analysis of ⁴He - ⁴⁰Ca elastic scattering in going from anomalous large-angle scattering to near-Coulomb-barrier scattering

NUCLEAR REACTIONS ⁴⁰Ca(α, α), E=4.5-27 MeV; calculated σ/σ_R(θ), S-matrix modulii, nuclear phases, deflection functions, and real part of nuclear phase; deduced smooth and monotonic functions of angular momentum, simultaneous description of a variety of scattering processes such as nuclear rainbow, pre-rainbow, anomalous large-angle scattering (ALAS), and near-Coulomb-barrier scattering (NCBS), with no evidence for Airy minima higher than the second order. Evolutionary model-independent S-matrix approach. Comparison with experimental data.

doi: 10.1103/PhysRevC.97.034606
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2015KO02      Phys.Rev. C 91, 024619 (2015)

V.Yu.Korda, A.S.Molev, V.F.Klepikov, L.P.Korda

Unified model-independent S-matrix description of nuclear rainbow, prerainbow, and anomalous large-angle scattering in ⁴He - ⁴⁰Ca elastic scattering

NUCLEAR REACTIONS ⁴⁰Ca(α, α), E=29.05-82.0 MeV; calculated σ(θ, E), angular positions of the Airy minima of first and second orders; deduced simultaneous description of nuclear rainbow, prerainbow, and anomalous large-angle scattering (ALAS). Model-independent S-matrix approach. Comparison with experimental data.

doi: 10.1103/PhysRevC.91.024619
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2009KO05      Phys.Rev. C 79, 024601 (2009)

V.Yu.Korda, A.S.Molev, L.P.Korda, V.F.Klepikov

Model-independent analysis of Airy structures in the ¹⁶O+¹²C and ¹⁶O+¹⁶O elastic scattering differential cross sections at 13-22 MeV/nucleon

NUCLEAR REACTIONS ¹²C(¹⁶O, ¹⁶O), E=200, 300 MeV; ¹⁶O(¹⁶O, ¹⁶O), E=250, 350 MeV; calculated cross sections, scattering matrix moduli, nuclear phases, reduced imaginary scattering phases using model-independent S-matrix approach. Comparison with experimental data.

doi: 10.1103/PhysRevC.79.024601
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2009KO26      Phys.Atomic Nuclei 72, 1754 (2009); Yad.Fiz. 72, 1812 (2009)

V.Yu.Korda, A.S.Molev, L.P.Korda

Analysis of refractive effects in ⁴He + ¹⁵N, ¹⁸O, ²⁴Mg, ⁴⁴Ca, and ⁹⁰Zr scattering processes at energies in the range E(⁴He) = 13-15 MeV per nucleon by using smooth monotonic dependences of the nuclear phase shift on the orbital angular momentum

NUCLEAR REACTIONS ¹⁵N, ¹⁸O, ²⁴Mg, ⁴⁴Ca, ⁹⁰Zr(α, α), E=13-15 MeV/nucleon; analyzed σ(θ) on the basis of S-matrix approach using evolution algorithm; deduced quantitive description of experimental data with smooth monotonic functions of the orbital angular momentum.

doi: 10.1134/
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2008KO16      Phys.Atomic Nuclei 71, 1287 (2008); Yad.Fiz. 71, 1314 (2008)

V.Yu.Korda, A.S.Molev, L.P.Korda

Model-independent analysis of Airy structures in the differential cross sections for the elastic scattering of ⁴He and ¹⁶O nuclei within a single S-matrix systematics

NUCLEAR REACTIONS ⁹⁰Zr(α, α), E=59.1, 118.0 MeV; ¹²C(¹⁶O, ¹⁶O), E=200.0, 300.0 MeV; ¹⁶O(¹⁶O, ¹⁶O), E=350.0 MeV; analyzed σ(dθ): S-matrix; Airy structures.

doi: 10.1134/S1063778808070235
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2007KO44      Phys.Atomic Nuclei 70, 1047 (2007); Yad.Fiz. 70, 1082 (2007)

V.Yu.Korda, A.S.Molev, L.P.Korda

Elastic ¹⁶O¹⁶O scattering at E(¹⁶O) = 350 MeV and new method for a model-independent determination of the scattering matrix

NUCLEAR REACTIONS ¹⁶O(¹⁶O, ¹⁶O), e=350 MeV; calculated elastic scattering cross sections using S-matrix formalism. Compared results to available data.

doi: 10.1134/S1063778807060075
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2007KO81      Iader.Fiz.Enerh. 8 no.4, 81 (2007); Nuc.phys.atom.energ. 8, no.4, 81 (2007)

V.Yu.Korda, A.S.Molev, L.P.Korda

Model-independent description of the light nucleus-nucleus elastic scattering at intermediate energies

NUCLEAR REACTIONS ¹⁶O(¹⁶O, ¹⁶O), E=350 MeV; calculated scattering matrices. Model-free approach, evolution algorithm.

doi: 10.15407/jnpae
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2005KO24      Phys.Rev. C 72, 014611 (2005)

V.Yu.Korda, A.S.Molev, L.P.Korda

Evolving model-free scattering matrix via evolutionary algorithm: ¹⁶O - ¹⁶O elastic scattering at 350 MeV

NUCLEAR REACTIONS ¹⁶O(¹⁶O, ¹⁶O), E=350 MeV; calculated scattering matrix, σ(θ). Evolutionary algorithm, comparison with data.

doi: 10.1103/PhysRevC.72.014611
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2005KO48      Bull.Rus.Acad.Sci.Phys. 69, 64 (2005)

V.Yu.Korda, A.S.Molev, L.P.Korda

Model-free study of refracting and absorbing properties of ¹⁶O - ¹⁶O interaction at energy 22-44 MeV/nucleon by evolution algorithm

NUCLEAR REACTIONS ¹⁶O(¹⁶O, ¹⁶O), E=350, 480, 704 MeV; analyzed σ(θ); deduced parameters. Model-free approach, evolution algorithm.

2005KO52      Bull.Rus.Acad.Sci.Phys. 69, 1778 (2005)

V.Yu.Korda, A.S.Molev, L.P.Korda

Model-free study of scattering matrix for ¹⁶O + ¹²C at energies E(¹⁶O)=200-281 MeV

NUCLEAR REACTIONS ¹²C(¹⁶O, ¹⁶O), E=200-281 MeV; calculated σ(θ). Comparison with data.

2004BE42      Yad.Fiz. 67, 1480 (2004); Phys.Atomic Nuclei 67, 1454 (2004)

Yu.A.Berezhnoy, A.S.Molev

Interference between Diffractive, Refractive, and Coulomb Effects in the Cross Sections for the Elastic Scattering of Light Nuclei by Nuclei at Intermediate Energies

NUCLEAR REACTIONS ²⁶Mg(³He, ³He), E=33.67 MeV; ¹⁹⁸Au(⁹Be, ⁹Be), E=158 MeV; ¹²C(³He, ³He), E=82.1 MeV; ¹²C(¹³C, ¹³C), E=260 MeV; calculated σ(θ); deduced interference contributions. S-matrix approach, comparison with data.

doi: 10.1134/1.1788036
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2004MO52      Bull.Rus.Acad.Sci.Phys. 68, 229 (2004)

A.S.Molev, V.Yu.Korda, L.P.Korda

Analysis of refractive effects in ¹⁶O-¹⁶O scattering using S-matrix approach and genetic algorithm

NUCLEAR REACTIONS ¹⁶O(¹⁶O, ¹⁶O), E=350 MeV; analyzed σ(θ). S-matrix approach, genetic algorithm.

2003BE70      Int.J.Mod.Phys. E12, 827 (2003)

Yu.A.Berezhnoy, A.S.Molev

Interference of diffractive, refractive and Coulomb effects in light nucleus-nucleus elastic scattering cross-sections at intermediate energies

NUCLEAR REACTIONS ²⁶Mg(³He, ³He), E=33.67 MeV; ¹⁹⁸Au(⁹Be, ⁹Be), E=158.30 MeV; ¹²C(³He, ³He), E=82.1 MeV; ¹²C(¹³C, ¹³C), E=260.0 MeV; calculated σ(θ), interference contributions. S-matrix approach, comparison with data.

doi: 10.1142/S0218301303001557
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2001KU20      Bull.Rus.Acad.Sci.Phys. 65, 31 (2001)

A.V.Kuznichenko, A.S.Molev, G.M.Onishchenko

Relation of Refraction and Absorption Effects in ³He - ¹²C Scattering at an Energy of About 20 MeV/Nucleon

NUCLEAR REACTIONS ¹²C(³He, ³He), E=17-20 MeV/nucleon; analyzed σ(θ); deduced S-matrix parameters.

2000MO34      Bull.Rus.Acad.Sci.Phys. 64, 773 (2000)

A.S.Molev

Phase Rule for Refractive Components of Cross Sections for Elastic and Inelastic Scattering of Light Nuclei

NUCLEAR REACTIONS ¹²C(³He, ³He), (³He, ³He'), E=82.1 MeV; ¹²C(¹¹Li, ¹¹Li), (¹¹Li, ¹¹Li'), E=637 MeV; ⁴⁰Ca(α, α), (α, α'), E=104 MeV; calculated refractive and farside σ(θ). S-matrix method.

1999MO37      Bull.Rus.Acad.Sci.Phys. 63, 809 (1999)

A.S.Molev

Potentials of Interaction of Exotic ¹¹Li and ¹⁴Be Nuclei with Nuclei

NUCLEAR REACTIONS ¹²C(¹¹Li, X), E=637 MeV; ²⁸Si(¹¹Li, X), E=319 MeV; ¹²C(¹⁴Be, X), E=796 MeV; calculated real and imaginary parts of the nuclear potential, reaction σ. Comparison with other calculations and data.

1998MO27      Bull.Rus.Acad.Sci.Phys. 62, 141 (1998)

A.S.Molev, A.V.Kuznichenko, G.M.Onishchenko

Sensitivity of Cross Sections for ¹¹Li + ¹²C, ²⁸Si Scattering to Properties at Short Distances

NUCLEAR REACTIONS ¹²C(¹¹Li, ¹¹Li'), E=637 MeV; ²⁸Si(¹¹Li, ¹¹Li'), E=319 MeV; analyzed σ(θ); deduced sensitivity to S-matrix behaviour.

1997MO24      Bull.Rus.Acad.Sci.Phys. 61, 131 (1997)

A.S.Molev, A.V.Kuznichenko, G.M.Onishchenko

Inelastic Contribution to Quasielastic ¹¹Li-²⁸Si Scattering at E(¹¹Li) = 319 MeV

NUCLEAR REACTIONS ²⁸Si(¹¹Li, ¹¹Li), (¹¹Li, X), E=29 MeV/nucleon; analyzed σ(θ); deduced model parameters; deduced inelastic process contribution to quasielastic scattering.

1997MO42      Bull.Rus.Acad.Sci.Phys. 61, 1691 (1997)

A.S.Molev

Nuclear Refraction Effect on Quasielastic Scattering of Neutron-Rich Nuclei with Energy 60 MeV/nucleon

NUCLEAR REACTIONS ¹²C(¹¹Li, ¹¹Li), (¹¹C, ¹¹C), (¹⁴Be, ¹⁴Be), E ≈ 60 MeV/nucleon; calculated σ(θ); deduced refractive contributions. Comparison with data.

1996MO21      Bull.Rus.Acad.Sci.Phys. 60, 106 (1996)

A.S.Molev, A.V.Kuznichenko, G.M.Onishchenko

Interference between Nearside and Farside Components in Quasielastic ¹⁴Be-¹²C Scattering at Energy 57 MeV/Nucleon

NUCLEAR REACTIONS ¹²C(¹⁴Be, ¹⁴Be), (¹⁴Be, ¹⁴Be'), E=57 MeV/nucleon; analyzed σ(θ); deduced nearside, farside components interference characteristics, quasielastic scattering. Six parameter model representation of S-matrix.

1995MO28      Bull.Rus.Acad.Sci.Phys. 59, 86 (1995)

A.S.Molev

Separation of Refractive and Diffractive Contributions to Cross Sections for Inelastic Scattering of Light Ions with E ≥ 20 MeV/nucleon

NUCLEAR REACTIONS ¹²C(⁶Li, ⁶Li), (⁶Li, ⁶Li'), E=210 MeV; ⁴⁰Ca(α, α), (α, α'), E=100 MeV; analyzed σ(θ); deduced reaction mechanisms, refractive, diffractive contributions separation.

1994MO43      Bull.Rus.Acad.Sci.Phys. 58, 1822 (1994)

A.S.Molev, A.V.Kuznichenko, G.M.Onishchenko, V.V.Adodin, N.T.Burtebaev, A.D.Duisebaev

Rainbowlike Phenomena in (³He, α) Reaction of ²⁴Mg, ^28,30Si Nuclei at an Energy of 60 MeV

NUCLEAR REACTIONS ^28,29,30Si, ²⁴Mg(³He, α), E=60 MeV; analyzed σ(θ) data; deduced distant component role, model parameters. Model representation of scattering matrix.

1993KU28      Bull.Rus.Acad.Sci.Phys. 57, 1800 (1993)

A.V.Kuznichenko, A.S.Molev, G.M.Onyshchenko

Inelastic Scattering of ^3,4He Ions by Deformed Nuclei with A = 24-32 at Energies 60-120 MeV

NUCLEAR REACTIONS ^24,26Mg(α, α), (α, α'), E=81-119 MeV; ²⁴Mg, ^28,30Si, ³²S(³He, ³He), (³He, ³He'), E=60 MeV; analyzed σ(θ); deduced nucleus-nucleus interaction probing possibility.

1991KU29      Izv.Akad.Nauk SSSR, Ser.Fiz. 55, 2249 (1991); Bull.Acad.Sci.USSR, Phys.Ser. 55, No.11, 165 (1991)

A.V.Kuznichenko, A.S.Molev, G.M.Onishchenko, V.V.Pilipenko

Inelastic Rainbow Scattering of ³He Ions at ¹²C Nuclei at an Energy of 24-33 MeV per Nucleon

NUCLEAR REACTIONS ¹²C(³He, ³He'), E=72-98 MeV; analyzed σ(θ); deduced rainbow scattering features, model parameters. ¹²C levels deduced deformation parameters. S-matrix approach.

1990KU23      Izv.Akad.Nauk SSSR, Ser.Fiz. 54, 848 (1990); Bull.Acad.Sci.Ussr, Phys.Ser. 54, No.5, 31 (1990)

A.V.Kuznichenko, A.S.Molev, G.M.Onishchenko

Total Cross Sections for Reactions with the Participation of Light Nuclei and the Ericson Parametrization of the Scattering Matrix

NUCLEAR REACTIONS, ICPND ²⁴Mg(α, α), E=33.4 MeV; ²⁷Al(³He, ³He), E=29.6 MeV; ⁵⁸Ni(³He, ³He), E=33.7, 51.3 MeV; ²⁸Si(⁶Li, ⁶Li), E=22.8 MeV; ²⁸Si(¹⁶O, ¹⁶O), E=55 MeV; ⁴⁰Ca(¹⁶O, ¹⁶O), E=1.503 GeV; calculated reaction σ. Scattering matrix approach, Ericson parametrization.

1990KU25      Izv.Akad.Nauk SSSR, Ser.Fiz. 54, 2142 (1990); Bull.Acad.Sci.USSR, Phys.Ser. 54, No.11, 57 (1990)

A.V.Kuznichenko, A.S.Molev, G.M.Onishchenko, V.V.Pilipenko

The Nuclear Rainbow Effect in the Elastic Scattering of ³He by ¹²C at E(³He) = 72-98 MeV

NUCLEAR REACTIONS ¹²C(³He, ³He), E=72-98 MeV; analyzed σ(θ). S-matrix approach.

1989KU22      Izv.Akad.Nauk SSSR, Ser.Fiz. 53, 147 (1989); Bull.Acad.Sci.USSR, Phys.Ser. 53, No.1, 142 (1989)

A.V.Kuznichenko, A.S.Molev, G.M.Onishchenko

Elastic Scattering of ⁴He Nuclei by ¹²C Nuclei in the 120-173 MeV Range

NUCLEAR REACTIONS ¹²C(α, α), E=120-173 MeV; calculated σ(θ); deduced model parameters.

1989KU30      Izv.Akad.Nauk SSSR, Ser.Fiz. 53, 2211 (1989); Bull.Acad.Sci.USSR, Phys.Ser. 53, No.11, 158 (1989)

A.V.Kuznichenko, A.S.Molev, G.M.Onishchenko

Total Cross Sections of the Reaction between α Particles and ¹²C Nuclei in the Energy Range 96.6-172.5 MeV

NUCLEAR REACTIONS, ICPND ¹²C(α, α), E ≈ 100-175 MeV; calculated σ, reaction σ. Different models.

1987BE40      Izv.Akad.Nauk SSSR, Ser.Fiz. 51, 933 (1987); Bull.Acad.Sci.USSR, Phys.Ser. 51, No.5, 95 (1987)

Yu.A.Berezhnoi, A.S.Molev, A.P.Soznik

Spin Reversal Function of 800 MeV Protons on Nucleus with One- and Two-Photon Excitation of Nuclear States

NUCLEAR REACTIONS ⁹²Zr(p, p'), (polarized p, p'), E=800 MeV; calculated σ(θ), spin reversal function vs θ. Multiple diffraction scattering theory.

1986BE48      Ukr.Fiz.Zh. 31, 1310 (1986)

Yu.A.Berezhnoi, A.S.Molev

Interaction Potentials between Medium Energy Particles and Nuclei

NUCLEAR REACTIONS ²⁰⁸Pb, ⁹⁰Zr(p, X), E=156, 185 MeV; ⁹Be(³He, X), E=217 MeV; calculated central, spin-orbit, isospin potentials; deduced nuclear parameters vs radius. Diffraction model.

1985BE19      Ukr.Fiz.Zh. 30, 13 (1985)

Yu.A.Berezhnoi, A.S.Molev, A.P.Soznik, G.A.Khomenko

Spin-Orbit Part of the Scattering Matrix in the Intermediate Energy Region

NUCLEAR REACTIONS ¹²C, ⁹⁰Zr, ¹²⁴Sn, ²⁰⁸Pb(p, p), E=1 GeV; calculated amplitudes; deduced S-matrix spin-orbit component.

1985BE28      Ukr.Fiz.Zh. 30, 814 (1985)

Yu.A.Berezhnoi, A.S.Molev

Coulomb Effects and Polarization Phenomena in Elastic Nuclear Scattering of Medium Energy Protons

NUCLEAR REACTIONS ⁹⁰Zr, ²⁰⁸Pb(p, p), (polarized p, p), E=40, 185 MeV; calculated σ(θ), analyzing power vs θ, spin rotation function. Coulomb field, proton magnetic moment coupling.

1985BE29      Yad.Fiz. 41, 1420 (1985)

Yu.A.Berezhnoi, A.S.Molev, V.V.Pilipenko, A.P.Soznik

Spin Rotation Functions of 500 MeV Protons Scattered by ⁴⁰Ca Nuclei

NUCLEAR REACTIONS ⁴⁰Ca(polarized p, p), (polarized p, p'), E=500 MeV; analyzed polarization characteristics, spin-rotation function data, σ(θ); deduced nucleon-nucleon amplitude spin-orbit term role. Multiple diffraction scattering theory.

1984BE04      Yad.Fiz. 39, 24 (1984)

Yu.A.Berezhnoy, A.S.Molev, A.P.Soznik

Polarization Phenomena in Inelastic Nuclear Scattering of Moderate-Energy Protons

NUCLEAR REACTIONS ⁵⁸Ni(polarized p, p), (polarized p, p'), E=40 MeV; ²⁰⁸Pb(polarized p, p), (polarized p, p'), E=185 MeV; analyzed σ(θ), polarization parameters vs θ. Diffraction model.