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NSR database version of May 10, 2024.

Search: Author = S.Soheyli

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2020AS03      Int.J.Mod.Phys. E29, 2050017 (2020)

G.Ashrafi, S.Soheyli, M.K.Khalili

Study of angular momentum effect on the fission process by angular anisotropy method in heavy-ion-induced

NUCLEAR REACTIONS ²⁰⁸Pb(¹⁹F, F), ¹⁹⁷Au(¹⁴N, F), E(cm)<140 MeV; calculated potential energy surfaces, fission fragment angular anisotropy.

doi: 10.1142/S0218301320500172
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2019SO05      Int.J.Mod.Phys. E28, 1950013 (2019)

S.Soheyli, M.K.Khalili, G.Ashrafi

Pre-saddle and pre-scission neutron emission rates in heavy-ion induced fission of ¹⁶O + ²⁰⁸Pb and ¹⁶O + ²⁰⁹Bi systems

NUCLEAR REACTIONS ²⁰⁸Pb, ²⁰⁹Bi(¹⁶O, X), E<100 MeV; calculated angular anisotropy, multiplicity, re-scission and pre-saddle time scales as the functions of initial excitation energy.

doi: 10.1142/S0218301319500137
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2017KH01      Phys.Rev. C 95, 024617 (2017)

M.V.Khanlari, S.Soheyli

Quasifission and fission rates and their lifetimes in asymmetric reactions forming ²¹⁶Ra within a dinuclear system approach

NUCLEAR REACTIONS ²⁰⁴Pb(¹²C, X)²¹⁶Ra*, E*=45-90 MeV; ¹⁹⁷Au(¹⁹F, X)²¹⁶Ra*, E*=50-103 MeV; ¹⁸⁶W(³⁰Si, X)²¹⁶Ra*, E*=45-90 MeV; ¹⁶⁸Er(⁴⁸Ca, X)²¹⁶Ra*, E*=40-77 MeV; calculated driving potential, emission barriers, quasifission rates of decays of the asymmetric dinuclear systems (DNS), lifetime of an excited DNS, fission rates and fission time scales using dinuclear system (DNS) approach.

doi: 10.1103/PhysRevC.95.024617
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2016SO04      Int.J.Mod.Phys. E25, 1650031 (2016)

S.Soheyli, M.V.Khanlari

Effect of the energy spectrum and angular momentum of pre-scission neutrons on the prediction of fission fragment angular anisotropy by the models

NUCLEAR REACTIONS ¹⁹⁷Au, ²⁰⁸Bi(p, X), ²³⁵U, ²³⁷Np(¹¹B, X), ²³⁶U, ²³²Th, ²³⁷Np(¹²C, X), ²⁰⁸Bi, ²⁰⁸Pb, ²³²Th, ²³⁸U, ²⁴⁸Cm(¹⁶O, X), ²³²Th, ²³⁸U(¹⁹F, X), ¹⁹⁷Au, ²⁰⁸Pb, ²³⁸U(³²S, X), ²⁰⁸Pb(²⁴Mg, X), (²⁸Si, X), (³²S, X), ²³²Th(¹⁴N, X), E not given; calculated neutron emission energy spectra, fission fragment angular anisotropy. Transition model.

doi: 10.1142/S0218301316500312
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2016SO10      Phys.Rev. C 94, 034615 (2016)

S.Soheyli, M.V.Khanlari

Theoretical study of effects of the entrance channel on the relative yield of complete fusion and quasifission in heavy-ion collisions within a dinuclear system approach

NUCLEAR REACTIONS ²⁰⁴Pb(¹²C, X), ¹⁹⁷Au(¹⁹F, X), ¹⁸⁶W(³⁰Si, X), ¹⁶⁸Er(⁴⁸Ca, X)²¹⁶Ra*, at E_CN*=30-120 MeV; calculated complete fusion, quasifission and total σ(E_CN*) using statistical method within the framework of dinuclear system model; deduced emission barriers; deduced entrance channel effects.

doi: 10.1103/PhysRevC.94.034615
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2014SO15      Phys.Rev. C 90, 024611 (2014)

S.Soheyli, B.Feizi

Fission fragment angular distribution in heavy-ion-induced fission with anomalous behavior

NUCLEAR REACTIONS ¹⁹⁷Au(³²S, F)²²⁹Am*, ²⁰⁸Pb(²⁴Mg, F)²³²Pu*, ²⁰⁸Pb(²⁸Si, F)²³⁶Cm*, ²⁰⁸Pb(³²S, F)²⁴⁰Cf*, ²³²Th(¹⁴N, F)²⁴⁶Bk*, ²³²Th(¹⁶O, F)²⁴⁸Cf*, E(cm)/V_B=1.0-1.5; ²³²Th(¹⁹F, F)²⁵¹Es*, E(cm)/V_B=0.6-1.2; ²³⁸U(¹⁶O, F)²⁵⁴Fm*, E(cm)/V_B=0.8-1.8; ²³⁸U(¹⁹F, F)²⁵⁷Md*, E(cm)/V_B=1.0-1.2; ²⁴⁸Cm(¹⁶O, F)²⁶⁴Rf*, E(cm)/V_B=0.9-1.5; calculated fission fragment angular distributions within the framework of standard saddle-point statistical, the scission-point statistical, and the upgraded saddle-point statistical models. Comparison with experimental data.

doi: 10.1103/PhysRevC.90.024611
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2013SO06      Phys.Rev. C 87, 034610 (2013)

S.Soheyli, M.K.Khalili

Pre-saddle neutron multiplicity for fission reactions induced by heavy ions and light particles

NUCLEAR REACTIONS ¹⁹⁷Au, ²⁰⁸Pb, ²⁰⁹Bi(¹⁶O, X), ²⁰⁸Pb(¹⁹F, X), ¹⁹⁷Au, ²⁰⁹Bi, ²³⁵U, ²³⁷Np(¹¹B, X), ¹⁹⁷Au, ²⁰⁹Bi(¹²C, X), (¹⁴N, X), ²⁰⁶Pb, ¹⁸²W(α, X), ²⁰⁹Bi, ¹⁸⁵Re(p, X), E*=20-80 MeV; calculated pre-saddle neutron multiplicities, anisotropies. Standard saddle-point statistical model.

doi: 10.1103/PhysRevC.87.034610
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2012SO04      Phys.Rev. C 85, 034610 (2012)

S.Soheyli, M.K.Khalili

Non-compound-nucleus fission events and standard saddle-point statistical model

NUCLEAR REACTIONS ²⁰⁸Pb(²⁴Mg, F), (²⁸Si, F), (³²S, F), ²³²Th, ²³⁸U(¹⁶O, F), (¹⁹F, F), ²³²Th(³²S, F), ²³⁸U(²⁷Al, F), E(cm)/V_b at 0.95-1.35 MeV; calculated non-compound-nucleus fission (NCNF) contributions to anisotropies, average non-compound-nucleus fission (NCNF) contributions for targets A=165-250 and projectiles of ¹⁶O and ³²S. Standard saddle-point statistical model (SSPSM). Comparison with experimental data.

doi: 10.1103/PhysRevC.85.034610
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2011SO24      Phys.Rev. C 84, 044609 (2011)

S.Soheyli

Effective moment of inertia for several fission reaction systems induced by nucleons, light particles, and heavy ions

NUCLEAR REACTIONS ¹⁸⁵Re(p, F)¹⁸⁶Os*, E(cm)=42-66.5 MeV; ¹⁸³W(³He, F)¹⁸⁶Os*, E(cm)=28-59.5 MeV; ¹⁸²W(α, F)¹⁸⁶Os*, E(cm)=53.5-73 MeV; ¹⁸⁵Re(α, F)¹⁸⁹Ir*, E(cm)=46-72.5 MeV; ¹⁹⁷Au(p, F)¹⁹⁸Hg*, E(cm)=36-66 MeV; ¹⁹⁷Au(³He, F)²⁰⁰Tl*, E(cm)=23-59 MeV; ¹⁹⁷Au(α, F)²⁰¹Tl*, E(cm)=47.5-77 MeV; ²⁰⁵Tl(p, F)²⁰⁶Pb*, E(cm)=36-67.5 MeV; ²⁰⁹Bi(p, F)²¹⁰Po*, E(cm)=35-67.5 MeV; ²⁰⁷Pb(³He, F)²¹⁰Po*, E(cm)=21-59 MeV; ²⁰⁶Pb(α, F)²¹⁰Po*, E(cm)=45.5-72.5 MeV; ²⁰⁹Bi(α, F)²¹³At*, E(cm)=44-76 MeV; ²³²Th(n, F)²³³Th*, E(cm)=21-95 MeV; ²³²Th(¹²C, F)²⁴⁴Cm*, E(cm)=64-78 MeV; ²³⁵U(¹¹B, F)²⁴⁶Bk*, E(cm)=60-70 MeV; ²³²Th(¹⁴N, F)²⁴⁶Bk*, E(cm)=75-86 MeV; ²³⁷Np(¹¹B, F)²⁴⁸Cf*, E(cm)=75-114 MeV; ²³⁶U(¹²C, F)²⁴⁸Cf*, E(cm)=75-125 MeV; ²³²Th(¹⁶O, F)²⁴⁸Cf*, E(cm)=93-136 MeV; analyzed coefficients in the effective moment of inertia equation from angular distribution of fission fragments, deformation and mass asymmetry parameters for the heavy-ion induced-fission reaction. Dinuclear shape for the fissioning system. Standard saddle-point statistical model, comparison with rotational liquid drop model and Sierk model.

doi: 10.1103/PhysRevC.84.044609
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2010SO13      Phys.Rev. C 82, 014605 (2010)

S.Soheyli, M.Khamehchi

Calculation of spin distribution for several fission reaction systems induced by nucleons and heavy ions

NUCLEAR REACTIONS ¹⁹⁷Au(¹⁹F, F), ²⁰⁸Pb(¹⁶O, F), (¹⁹F, F), (²⁴Mg, F), (²⁸Si, F), (³²S, F), ²⁰⁹Bi(¹⁶O, F), ²³²Th(¹⁰B, F), (⁹Be, F), (¹²C, F), (¹⁴N, F), (¹⁶O, F), ²³⁵U(¹¹B, F), ²³⁶U(¹²C, F), ²³⁷Np(¹¹B, F), (¹²C, F), ²³⁸U(¹¹B, F), E not given; calculated spin distributions of the fission of compound nuclei ²¹⁶Ra, ²²⁴Th, ²⁴²Am, ^249,251Es, ^225,227Pa, ^232,241Pu, ^236,244Cm, ^246,249Bk, ^240,248Cf using standard saddle-point statistical model (SSPSM). Comparison with coupled-channel calculations.

doi: 10.1103/PhysRevC.82.014605
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2008SO08      Int.J.Mod.Phys. E17, 425 (2008)

S.Soheyli, H.Noshad, I.Ziaian

Calculation of fission fragment angular anisotropy in heavy-ion induced fission

NUCLEAR REACTIONS ²³²Th(¹²C, X), (¹⁴N, X), (¹⁶O, X), ²³⁵U, ²³⁷Np(¹¹B, X), E not given; ²³⁶U(¹²C, X), E not given; calculated fission fragment angular anisotropies using the standard saddle point statistical model (SSPSM). Comparisons with experimental data.

doi: 10.1142/S0218301308009471
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2007SO10      Chin.Phys.Lett. 24, 1525 (2007)

S.Soheyli

Energy and Mass Distributions of Induced-Fission of ¹⁹⁷Au Nucleus by 29 MeV Protons

NUCLEAR REACTIONS ¹⁹⁷Au(p, f), E=29 MeV; measured fission cross section, fragment mass and energy distributions. Compared results to existing data.

doi: 10.1088/0256-307X/24/6/026
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0895.

2001NO13      J.Nucl.Sci.Technol.(Tokyo) 38, 901 (2001)

H.Noshad, S.Soheyli, M.Lamehi-Rachti

Fission of ²⁰⁹Bi and ¹⁹⁷Au Nuclei Induced by 30 MeV Protons

NUCLEAR REACTIONS ¹⁹⁷Au, ²⁰⁹Bi(p, F), E=30 MeV; measured σ, fission fragment kinetic energy and mass distributions.

doi: 10.1080/18811248.2001.9715113
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1269.