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NSR database version of May 22, 2024.

Search: Author = P.Nadtochy

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2023SC04      Phys.Lett. B 840, 137873 (2023)

C.Schmitt, P.N.Nadtochy, K.Mazurek

Fission as a relevant probe of the nuclear level density away from β-stability

NUCLEAR REACTIONS 238U(16O, X)256Fm, E=158.8 MeV; 232Th(20Ne, X)252Fm, E=215 MeV; 169Tm(36Ar, X)205Fr, E=205 MeV; 197Au(18O, X)215Fr, E=158.8 MeV; 232Th(16O, X)248Cf, E=96, 128 MeV; analyzed available data; deduced the evolution of the nuclear level density (NLD) away from β-stability using four-dimensional dynamical Langevin model, implementing various prescriptions of the asymptotic level-density parameter, to demonstrate the relevance of considering typical fission observables, and namely the pre- and post-scission neutron multiplicities, to investigate the evolution of with N and Z.

doi: 10.1016/j.physletb.2023.137873
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2020DI02      Phys.Rev. C 102, 024624 (2020)

A.Di Nitto, E.Vardaci, G.La Rana, P.N.Nadtochy, A.Boiano, M.Cinausero, G.Prete, N.Gelli, E.M.Kozulin, G.N.Knyazheva, A.Ordine, F.Davide, C.Parascandolo, D.Pierroutsakou, A.Pulcini

Evaporation and fission decay of 158Er composite nuclei within the statistical model

NUCLEAR REACTIONS 126Te(32S, X)158Er*, E=180 MeV; measured evaporation residues (ER), fission fragments (FF), protons, α, p(ER)-coin, α(ER)-coin, p(FF)-coin, α(FF)-coin using the used the Ball sector 8πLP apparatus at the XTU-Tandem accelerator of LNL-Legnaro; deduced proton and α-particle energy-integrated differential multiplicities, angular distributions, fusion-fission σ; data analyzed in the framework of the statistical model (SM) of evaporation using the code PACE2_N11.

doi: 10.1103/PhysRevC.102.024624
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2020GU05      Phys.Lett. B 803, 135297 (2020)

S.Gupta, K.Mahata, A.Shrivastava, K.Ramachandran, S.K.Pandit, P.C.Rout, V.V.Parkar, R.Tripathi, A.Kumar, B.K.Nayak, E.T.Mirgule, A.Saxena, S.Kailas, A.Jhingan, A.K.Nasirov, G.A.Yuldasheva, P.N.Nadtochy, C.Schmitt

Competing asymmetric fusion-fission and quasifission in neutron-deficient sub-lead nuclei

NUCLEAR REACTIONS 175Lu(16O, X)191Au, E=82.8 MeV; 154Sm(37Cl, X)191Au, E=166.4 MeV; measured reaction products, fission fragments; deduced mass fission yields, newly identified island of mass asymmetric fission in the sub-lead region near 191Au compound nucleus.

doi: 10.1016/j.physletb.2020.135297
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2019MA87      Acta Phys.Pol. B50, 311 (2019)

A.Marcinek, A.Rybicki, K.Mazurek, A.Szczurek, P.N.Nadtochy, C.Schmitt, A.Kelic, V.Ozvenchuk, I.Sputowska

What Shall We Do with the Spectator System in Ultrarelativistic Heavy-ion Collisions?

doi: 10.5506/aphyspolb.50.311
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2019SC21      Phys.Rev. C 100, 064606 (2019)

C.Schmitt, K.Mazurek, P.N.Nadtochy

New procedure to determine the mass-angle correlation of quasifission

NUCLEAR REACTIONS 178Hf(24Mg, F)202Po*,186Os(16O, F)202Po*,168Er(34S, F)202Po*,154Sm(48Ti, F)202Po*, E*=50-85 MeV; calculated fission-fragment pre-neutron mass and angular distributions, mass-angle distribution (MAD) of fusion-fission (CNF) and quasi fission (QF) events, fragment mass distribution widths. Dynamical calculations performed with the four-dimensional (4D) Langevin code. Comparison with experimental data.

doi: 10.1103/PhysRevC.100.064606
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2019VA17      J.Phys.(London) G46, 115111 (2019)

E.Vardaci, A.Di Nitto, P.N.Nadtochy, G.La Rana

Fission dynamics in systems of intermediate fissility

NUCLEAR REACTIONS 100Mo(32S, F), E=200 MeV; measured reaction products, Eα, Iα, Ep, Ip. 132Ce; deduced multiplicity spectra of alpha particles in coincidence with fission fragments, σ, proton and α-particle energy spectra, yields. Comparison with theoretical calculations.

doi: 10.1088/1361-6471/ab445a
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2018DI04      Nucl.Phys. A971, 21 (2018)

A.Di Nitto, E.Vardaci, G.La Rana, P.N.Nadtochy, G.Prete

Evaporation channel as a tool to study fission dynamics

NUCLEAR REACTIONS 100Mo(32S, F), E=200 MeV; measured charged particles, fission fragments using Ball sector (7 rings of 18 ΔE-E (Si followed by thick CsI(Tl)) telescopes each) of 8π LP facility, evaporation residues with PISO tiplicity in ER channel, fission σ, evaporation σ; calculated charged particle σ(θ), p-multiplicity, α-multiplicity in ER channel, fission σ, evaporation σ using SM PACE2_N11 (multistep compound nucleus with light particle evaporation and fission process) and a DM code (stochastic approach based on 3-D Langevin equations); deduced SM and DM parameters.

doi: 10.1016/j.nuclphysa.2018.01.008
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2018MA14      Phys.Rev. C 97, 024604 (2018)

K.Mazurek, A.Szczurek, C.Schmitt, P.N.Nadtochy

Dynamical evolution of spectator systems produced in ultrarelativistic heavy-ion collisions

NUCLEAR REACTIONS 208Pb(208Pb, X), E=158 GeV/nucleon; calculated particle multiplicities, fission fragment charge distributions, excitation energies of spectator. Glauber model, and abrasion-ablation model. Dynamical approach for fission and evaporation reaction based on the multidimensional stochastic Langevin equations. Comparison with experimental data from CERN.

doi: 10.1103/PhysRevC.97.024604
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2018SC03      Phys.Rev. C 97, 014616 (2018)

C.Schmitt, K.Mazurek, P.N.Nadtochy

Influence of fusion dynamics on fission observables: A multidimensional analysis

NUCLEAR REACTIONS 134Ba(28Si, X)162Yb*, E=132-165 MeV; 159Tb(20Ne, X)179Re*, E=89-205 MeV; 182W(16O, X)198Pb*, E=72-80 MeV; 170Er(28Si, X)198Pb*, E=113-139 MeV; 194Pt(12C, X)206Po*, E=80-108 MeV; 184W(22Ne, X)206Po*, E=99-127 MeV; 197Au(16O, X)213Fr*, E=83-113 MeV; 194Pt(19F, X)213Fr*, E=82-111 MeV; 204Pb(12C, X)216Ra*, E=86-90 MeV; 197Au(19F, X)216Ra*, E=93-97 MeV; 237Np(11B, X)248Cf*, E=73-96 MeV; 232Th(16O, X)248Cf*, E=96-118 MeV; calculated entrance-channel asymmetry and energy with respect to the Coulomb barrier as function of formation time, excitation energy and mean angular momentum of compound nucleus as function of neutron prescission multiplicity by combining dynamical stochastic Langevin model for fission of excited compound nuclei with predictions by the dynamical deterministic HICOL code for the fusion time.

doi: 10.1103/PhysRevC.97.014616
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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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2016DI05      Phys.Rev. C 93, 044602 (2016)

A.Di Nitto, E.Vardaci, A.Brondi, G.La Rana, M.Cinausero, N.Gelli, R.Moro, P.N.Nadtochy, G.Prete, A.Vanzanella

Clustering effects in 48Cr composite nuclei produced via the 24Mg + 24Mg reaction

NUCLEAR REACTIONS 24Mg(24Mg, X)48Cr*, E=91.72 MeV; measured α-particle energy spectra, α-evaporation residues, α-α and α-α-α correlations, time-of-flight spectra, angular distributions, using 8πLP apparatus at Laboratori Nazionali di Legnaro; deduced α-particle multiplicities. Comparison to statistical model predictions using Hauser-Feshbach formulation of the shell model in conjunction with the Monte Carlo method for normally deformed (ND) and highly deformed (HD) systems. Comparison with the predictions of the cranked cluster model.

doi: 10.1103/PhysRevC.93.044602
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2016MA77      Phys.Rev. C 94, 064602 (2016)

K.Mazurek, C.Schmitt, P.N.Nadtochy, A.V.Cheredov

Going beyond statistical models for fission in the Businaro-Gallone region

NUCLEAR REACTIONS 9Be(93Nb, X)102Rh*, E=8.4, 11.4 MeV/nucleon; 27Al(84Kr, X)111In*, E=10.4 MeV/nucleon; 65Cu(45Sc, X)110Sn*, E=4.4 MeV/nucleon; 9Be(139La, X)148Pm*, E=8.3 MeV/nucleon; calculated Z and time distribution of fragments, yields, correlation between fragment Z and angular momentum of compound nucleus, potential energy contours, pre-scission multiplicities in the fission of compound nuclei. Mapping of fission in the Businaro-Gallone region. Dynamical calculations based on four-dimensional stochastic Langevin approach. Comparison with experimental data.

NUCLEAR STRUCTURE 102Rh, 110Sn, 132Ce, 148Pm, 160Yb, 206Po; calculated fission barrier height as a function of asymmetry coordinate q3 for angular momentum of 0 and 40, stiffness as a function of angular momentum.

doi: 10.1103/PhysRevC.94.064602
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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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2015AY01      Phys.Rev. C 91, 034601 (2015)

Y.Ayyad, J.Benlliure, J.L.Rodriguez-Sanchez, A.Bacquias, A.Boudard, E.Casarejos, T.Enqvist, M.Fernandez, V.Henzl, V.Henzlova, B.Jurado, A.Kelic-Heil, T.Kurtukian, S.Lukic, P.Nadtochy, D.Perez-Loureiro, R.Pleskac, F.Farget, M.V.Ricciardi, K.-H.Schmidt, C.Schmitt, N.N.Son

Dissipative effects in spallation-induced fission of 208Pb at high excitation energies

NUCLEAR REACTIONS 1,2H(208Pb, F), E=500 MeV/nucleon; measured particle spectra, energy loss of the fission fragments, sum spectrum of fission fragments nuclear charge Z1+Z2, fission fragment charge distributions as function of mass number, partial fission and normalized cross sections as a function of the charge, distribution of the excitation energy of all the prefragments, width of the fission fragment charge distribution. Comparisons with model calculations using INCL and ISABEL codes coupled to ABLA.

doi: 10.1103/PhysRevC.91.034601
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2015GR16      Phys.Rev. C 92, 064606 (2015)

D.Gruyer, J.D.Frankland, E.Bonnet, A.Chbihi, G.Ademard, M.Boisjoli, B.Borderie, R.Bougault, E.Galichet, J.Gauthier, D.Guinet, P.Lautesse, N.Le Neindre, E.Legouee, I.Lombardo, O.Lopez, L.Manduci, P.Marini, K.Mazurek, P.N.Nadtochy, M.Parlog, M.F.Rivet, R.Roy, E.Rosato, G.Spadaccini, G.Verde, E.Vient, M.Vigilante, J.P.Wieleczko, for the INDRA Collaboration

Coulomb chronometry to probe the decay mechanism of hot nuclei

NUCLEAR REACTIONS Sn(129Xe, X), E=8, 12, 15, 18, 20, 25 MeV/nucleon; measured particle spectra using INDRA 4π charged product multidetector at GANIL accelerator facility; deduced correlations between cosine of the flow angle and the total detected charge, light charged particle multiplicities as function of beam energy, Dalitz plots of central collisions, normalized charge distributions, distribution of the intersplitting angle, Coulomb distortion parameter as function of intersplitting time, mean intersplitting time as function of beam energy and estimated excitation energy of the initial composite systems, Coulomb chronometer for three-fragment exit channel and strong Coulomb proximity effects, and multifragmentation.

doi: 10.1103/PhysRevC.92.064606
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2015MA26      Phys.Rev. C 91, 041603 (2015)

K.Mazurek, C.Schmitt, P.N.Nadtochy

Description of isotopic fission-fragment distributions within the Langevin approach

NUCLEAR REACTIONS 12C(238U, X)250Cf*, E=6.1 MeV/nucleon; calculated fragment isotopic distributions for Sr to Nd isotopes produced in the fission of 250Cf compound nucleus at an excitation energy of 45 MeV. Four-dimensional stochastic Langevin approach extended to the description of fragment isotopic distributions in fission. Comparison with experimental data.

doi: 10.1103/PhysRevC.91.041603
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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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2015VA15      Pramana 85, 345 (2015)

E.Vardaci, A.Di Nitto, P.N.Nadtochy, A.Brondi, G.La Rana, R.Moro, M.Cinausero, G.Prete, N.Gelli, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis

Fission dynamics with systems of intermediate fissility

NUCLEAR REACTIONS 100Mo(32S, X), E=200 MeV; measured fission products, Ep, Ip, Eα, Iα; deduced proton and α-particle multiplicities, evaporation residue and fission fragments σ. Comparison with statistical model.

doi: 10.1007/s12043-015-1049-x
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2015VA16      Phys.Rev. C 92, 034610 (2015)

E.Vardaci, P.N.Nadtochy, A.Di Nitto, A.Brondi, G.La Rana, R.Moro, P.K.Rath, M.Ashaduzzaman, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, M.Cinausero, G.Prete, D.Fabris, G.Montagnoli, N.Gelli

Fission dynamics of intermediate-fissility systems: A study within a stochastic three-dimensional approach

NUCLEAR REACTIONS 100Mo(32S, X)132Ce*, E=200 MeV pulsed beam; measured particle multiplicities, proton- and α-particle energy spectra, and angular distributions of light-charged-particle (LCPs) in the fusion-fission (FF) and evaporation-residue (ER) channels, (ER)α(θ), (ER)p(θ) using BALL sector of 8πLP apparatus and TOF spectrometer CORSET at XTU Tandem-ALPI accelerator complex of LNL-Legnaro; deduced mass-energy distribution (MEDs), mass and total-kinetic-energy (TKE) distributions of fission fragments, fission time distribution and fission rate, yields of pre-scission particle multiplicities versus time of emission from equilibrium. Data analyzed using dynamical model based on three-dimensional Langevin equations. Theoretical analysis using multidimensional stochastic approach coupled with a Hauser-Feshbach treatment of particle evaporation.

doi: 10.1103/PhysRevC.92.034610
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2014BE30      Nucl.Data Sheets 119, 277 (2014)

J.Benlliure, Y.Ayyad, A.Boudard, E.Casarejos, T.Enqvist, F.Farget, A.Bacquias, M.Fernandez, L.Giot, V.Henzl, D.Henzlova, A.Kelic-Heil, T.Kurtukian, S.Leray, S.Lukic, N.N.Son, P.Nadtochy, D.Perez, R.Pleskak, K.-H.Schmidt, C.Schmitt

Fission in Lead on Proton and Deuteron Reactions at 500 A MeV

NUCLEAR REACTIONS 1,2H(208Pb, F), E=500, 1000 MeV/nucleon; measured fission fragments energy, angle, atomic number; deduced fission fragment charge distribution, total fusion σ. Compared with data.

doi: 10.1016/j.nds.2014.08.076
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2294.


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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2013MA16      Acta Phys.Pol. B44, 293 (2013)

K.Mazurek, C.Schmitt, P.N.Nadtochy, A.Maj, P.Wasiak, M.Kmiecik, B.Wasilewska

Fission Fragment Mass Distribution as a Probe of the Shape-dependent Congruence Energy Term in the Macroscopic Models

NUCLEAR STRUCTURE 111In; calculated potential energy surface.

RADIOACTIVITY 111In, 252Fm(SF); calculated yields, fission-fragment mass distributions. Finite Range Liquid Drop Model (FRLDM) and the Lublin-Strasbourg Drop (LSD) prescription.

doi: 10.5506/APhysPolB.44.293
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2013MA83      Phys.Rev. C 88, 054614 (2013)

K.Mazurek, C.Schmitt, P.N.Nadtochy, M.Kmiecik, A.Maj, P.Wasiak, J.P.Wieleczko

Examining fine potential energy effects in high-energy fission dynamics

NUCLEAR REACTIONS 27Al(84Kr, X)111In*, E=5.9, 10.6 MeV/nucleon; calculated fission probability, prescission and postscission neutron-, proton- and α-multiplicities, neutron-, proton- and α-multiplicities in ER channel, mean fission-fragment total kinetic energy, variance of the fission-fragment charge and total kinetic energy distributions, mean excitation energy of the fission-fragment pair at scission, σ for fission fragment isotopic and isobaric mass distributions using Finite-range liquid drop model (FRLDM) and Lublin-Strasbourg-Drop (LDS) model, both with and without deformation-dependent Wigner term. Comparison with experimental data. 111In, 229Np; calculated potential energy surfaces (PES) within FRLDM and LSD models.

doi: 10.1103/PhysRevC.88.054614
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2013NA14      Phys.Scr. T154, 014004 (2013)

P.N.Nadtochy, C.Schmitt, K.Mazurek

On some limitations of current Langevin calculations

NUCLEAR REACTIONS 238U(12C, X)250Cf, E not given; calculated compound nucleus yield, fission fragment mass distribution. The multi-dimensional Langevin approach, comparison with available data.

doi: 10.1088/0031-8949/2013/T154/014004
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2013SC07      Phys.Rev. C 87, 034601 (2013)

K.-H.Schmidt, B.Jurado, R.Pleskac, M.V.Ricciardi, J.Benlliure, A.Boudard, E.Casarejos, T.Enqvist, F.Farget, A.Bacquias, M.Fernandez, L.Giot, V.Henzl, D.Henzlova, A.Kelic-Heil, T.Kurtukian, S.Leray, S.Lukic, N.N.Son, P.Nadtochy, D.Perez, C.Schmitt

High-precision measurement of total fission cross sections in spallation reactions of 208Pb and 238U

NUCLEAR REACTIONS 1,2H(208Pb, F), (238U, F), E=500-1000 MeV/nucleon; measured beam particle and fission fragment spectra in coincidence, energy-loss, time of flight, total fission σ(E) at GSI facility. Spallation reactions in inverse kinematics. Comparisons with Prokofiev's systematics, and previous measurements.

doi: 10.1103/PhysRevC.87.034601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2141.


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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2011DI12      Eur.Phys.J. A 47, 83 (2011)

A.Di Nitto, E.Vardaci, A.Brondi, G.La Rana, R.Moro, P.N.Nadtochy, M.Trotta, A.Ordine, A.Boiano, M.Cinausero, E.Fioretto, G.Prete, V.Rizzi, D.V.Shetty, M.Barbui, D.Fabris, M.Lunardon, G.Montagnoli, S.Moretto, G.Viesti, N.Gelli, F.Lucarelli, G.N.Knyazheva, E.M.Kozulin

Evaporation and fission decay of 132Ce compound nuclei at Ex=122 MeV: some limitations of the statistical model

NUCLEAR REACTIONS 100Mo(32S, X), E=200 MeV; measured charged particles, ER, FF, (particle)ER-coin, (particle)FF-coin using BALL detector; deduced proton, α σ, σ(θ), σ(E), multiplicity; calculated proton, α σ, σ(θ), σ(E), multiplicity using statistical model codes LILITA_N97, PACE2_N97, GANES.

doi: 10.1140/epja/i2011-11083-6
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2011MA43      Phys.Rev. C 84, 014610 (2011)

K.Mazurek, C.Schmitt, J.P.Wieleczko, P.N.Nadtochy, G.Ademard

Critical insight into the influence of the potential energy surface on fission dynamics

NUCLEAR REACTIONS 240Pu(20Ne, X)260Rf*, E=142 MeV; 40Ca(78Kr, X)118Ba*, E=429 MeV; calculated angular momentum distribution, charge distribution, of fission fragments, mass and TKE correlations of fission fragments. Finite Range Liquid Drop Model (FRLDM) and Lublin-Strasbourg Drop (LSD). Langevin dynamics. Curvature effects.

NUCLEAR STRUCTURE 118Ba, 260Rf; calculated potential energy surfaces, fission barriers using FRLDM and LSD models.

doi: 10.1103/PhysRevC.84.014610
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2010NA08      Phys.Lett. B 685, 258 (2010)

P.N.Nadtochy, E.Vardaci, A.Di Nitto, A.Brondi, G.La Rana, R.Moro, M.Cinausero, G.Prete, N.Gelli, F.Lucarelli

Examination of isospin effects in multi-dimensional Langevin fission dynamics

NUCLEAR STRUCTURE 182,204Hg, 194,200,206Pb; calculated prescission particle multiplicities, fission probability, fragment mass and energy distributions for fission at 100 MeV excitation energy using 1D and 3D dynamical models. Comparison with experimental data for 200Pb.

doi: 10.1016/j.physletb.2010.01.069
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2010SC14      Phys.Rev. C 81, 064602 (2010)

C.Schmitt, K.-H.Schmidt, A.Kelic, A.Heinz, B.Jurado, P.N.Nadtochy

Fragmentation of spherical radioactive heavy nuclei as a novel probe of transient effects in fission

NUCLEAR REACTIONS Pb(205At, X), (206At, X), (207Rn, X), (209Rn, X), (212Fr, X), (217Fr, X), (218Fr, X), (211Ra, X), (212Ra, X), (213Ra, X), (214Ra, X), (215Ra, X), (216Ra, X), (217Ra, X), (218Ra, X), (219Ra, X), (220Ra, X), (221Ra, X), (222Ra, X), (223Ra, X), (215Ac, X), (216Ac, X), (217Ac, X), (218Ac, X), (219Ac, X), (220Ac, X), (221Ac, X), (222Ac, X), (223Ac, X), (224Ac, X), (225Ac, X), (226Ac, X), (221Th, X), (222Th, X), (224Th, X), [secondary radioactive beams from primary reaction Be(238U, X), E=1000 MeV/nucleon], E=420 MeV/nucleon; measured σ, charge correlations of two fragments, deformation parameter, transient time as a function of ΔZ. Comparison with model calculations and Kramer-type calculations.

doi: 10.1103/PhysRevC.81.064602
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2009SC26      Int.J.Mod.Phys. E18, 2150 (2009)

C.Schmitt, A.Kelic, K.-H.Schmidt, A.Heinz, B.Jurado, P.N.Nadtochy

Fragmentation of radioactive beams for tailoring fission transients

doi: 10.1142/S0218301309014469
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2008BO02      Nucl.Phys. A799, 56 (2008)

M.V.Borunov, P.N.Nadtochy, G.D.Adeev

Nuclear scission and fission-fragment kinetic-energy distribution: Study within three-dimensional Langevin dynamics

NUCLEAR STRUCTURE 138Nd, 172Yb, 186Os, 187Ir, 210Tl, 201Bi, 210Po, 213At, 233Pa, 229Np, 237,240Pu, 244Cm, 248Cf, 256Fm, 260Rf; calculated fission fragment energy distribution parameters for different scission criteria.

doi: 10.1016/j.nuclphysa.2007.11.002
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2008GE05      Phys.Atomic Nuclei 71, 2007 (2008); Yad.Fiz. 71, 2041 (2008)

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

Impact of non-Markovian effects on the fission rate and time

doi: 10.1134/S1063778808120028
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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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2007NA14      Phys.Rev. C 75, 064614 (2007)

P.N.Nadtochy, A.Kelic, K.-H.Schmidt

Fission rate in multi-dimensional Langevin calculations

NUCLEAR STRUCTURE 248Cf; calculated fission rate and the influence of of the dimensionality of the deformation space on its time dependence using multi-dimensional Langevin model.

doi: 10.1103/PhysRevC.75.064614
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2007RU16      Phys.Atomic Nuclei 70, 1679 (2007); Yad.Fiz. 70, 1724 (2007)

A.Ya.Rusanov, G.D.Adeev, M.G.Itkis, A.V.Karpov, P.N.Nadtochy, V.V.Pashkevich, I.V.Pokrovsky, V.S.Salamatin, G.G.Chubarian

Investigation of the reaction 208Pb(18O, f): Fragment spins and phenomenological analysis of the angular anisotropy of fission fragments

NUCLEAR REACTIONS 208Pb(18O, F), E=78.0-198.5 MeV; measured Eγ, Iγ, average multiplicity from fission fragments. Deduced total spins of fission fragments.

doi: 10.1134/S106377880710002X
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2007SC28      Phys.Rev.Lett. 99, 042701 (2007)

C.Schmitt, P.N.Nadtochy, A.Heinz, B.Jurado, A.Kelic, K.-H.Schmidt

First Experiment on Fission Transients in Highly Fissile Spherical Nuclei Produced by Fragmentation of Radioactive Beams

NUCLEAR REACTIONS 208Pb(205At, X), (207Rn, X), (208Fr, X), (211Ra, X), (215Ra, X), (215Ac, X), (219Ac, X), (221Th, X), (222Th, X), (223Ac, X), E=530 MeV/nucleon; measured widths of fission fragment nuclear-charge distributions.

doi: 10.1103/PhysRevLett.99.042701
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2005AD38      Fiz.Elem.Chastits At.Yadra 36, 712 (2005); Physics of Part.and Nuclei 36, 378 (2005)

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

Multidimensional Stochastic Approach to the Fission Dynamics of Excited Nuclei


2005NA39      Phys.Rev. C 72, 054608 (2005)

P.N.Nadtochy, G.D.Adeev

Dynamical interpretation of average fission-fragment kinetic energy systematics and nuclear scission

NUCLEAR STRUCTURE 142Ce, 224Th, 256Fm; calculated fission trajectories in deformation space. A=119-256; calculated average fission fragment energy, scission deformation parameters. Dynamical approach.

doi: 10.1103/PhysRevC.72.054608
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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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2003AD09      Yad.Fiz. 66, 647 (2003); Phys.Atomic Nuclei 66, 618 (2003)

G.D.Adeev, P.N.Nadtochy

Probabilistic Scission of a Fissile Nucleus into Fragments

NUCLEAR REACTIONS 194Pt(12C, X), E=99 MeV; 197Au(18O, X), E=158.8 MeV; 232Th(12C, X), E=97 MeV; 240Pu(20Ne, X), E=142 MeV; calculated fragment mass distributions, neutron multiplicity following compound nucleus fission. Probabilistic scission mechanism, Strutinsky criterion. Comparison with data.

NUCLEAR STRUCTURE 206Po, 215Fr, 244Cm, 260Rf; calculated fission fragment mass distributions, neutron multiplicity following compound nucleus formation. 244Cm; calculated energy of fission fragment interaction vs distance and neck radius. Probabilistic scission mechanism, Strutinsky criterion.

doi: 10.1134/1.1568813
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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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2003NA11      Yad.Fiz. 66, 1240 (2003); Phys.Atomic Nuclei 66, 1203 (2003)

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

Reduction Coefficient in Surface-Plus-Window Dissipation: Analysis of Experimental Data from Fusion-Fission Reactions within a Stochastic Approach

NUCLEAR REACTIONS 209Bi(α, X), 194Pt, 232Th(12C, X), 170Er, 182W, 208Pb, 232Th(16O, X), 144,154Sm, 197Au, 238U(18O, X), 232Th, 240Pu(20Ne, X), 169Tm(36Ar, X), E ≈ 80-215 MeV; calculated fission probabilities, fragment angular and mass distributions, neutron multiplicities. Three-dimensional stochastic approach.

doi: 10.1134/1.1586438
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2002NA15      Yad.Fiz. 65, 832 (2002); Phys.Atomic Nuclei 65, 799 (2002)

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

Langevin Fission Dynamics of Hot Rotating Nuclei: Systematic application to Z2/A = 34-42 heavy nuclei

NUCLEAR REACTIONS 194Pt, 232Th(12C, F), E ≈ 99 MeV; 197Au, 238U(18O, F), E=159 MeV; 208Pb(16O, F), E=108 MeV; 209Bi, 240Pu(20Ne, F), E ≈ 150 MeV; calculated fission fragment energy and mass distributions, prescission neutron yields. Langevin dynamics.

doi: 10.1134/1.1481471
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2002NA16      Phys.Rev. C65, 064615 (2002)

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

More Detailed Study of Fission Dynamics in Fusion-Fission Reactions within a Stochastic Approach

NUCLEAR REACTIONS 154Sm, 197Au, 238U(18O, X), E=159 MeV; 169Tm(36Ar, X), E=205 MeV; 232Th(20Ne, X), E=215 MeV; calculated fission fragments average kinetic energy, prescission neutron multiplicity, fragment mass distributions following compound nucleus fission. Three-dimensional stochastic approach.

doi: 10.1103/PhysRevC.65.064615
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2001KA30      Phys.Rev. C63, 054610 (2001)

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

Three-Dimensional Langevin Calculations of Fission Fragment Mass-Energy Distribution from Excited Compound Nuclei

NUCLEAR REACTIONS 194Pt(12C, F), E=99 MeV; 208Pb(16O, F), E=108 MeV; 232Th(12C, F), E=97 MeV; 240Pu(20Ne, F), E=142, 174 MeV; calculated fission fragments energy, mass distributions, prescission neutron multiplicities. Three-dimensional Langevin dynamics, comparisons with data.

doi: 10.1103/PhysRevC.63.054610
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2001NA26      Yad.Fiz. 64, No 5, 926 (2001); Phys.Atomic Nuclei 64, 861 (2001)

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

Mass-Energy Distribution of Fragments from the Fission of Excited Nuclei within Three-Dimenstional Langevin Dynamics

NUCLEAR REACTIONS 194Pt(12C, F), E=99 MeV; calculated fission fragments kinetic energy and mass distributions. Three-dimensional Langevin dynamics.

doi: 10.1134/1.1378876
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2000VA27      Yad.Fiz. 63, No 11, 1957 (2000); Phys.Atomic Nuclei 63, 1865 (2000)

D.V.Vanin, P.N.Nadtochy, G.I.Kosenko, G.D.Adeev

Langevin Description of Mass Distributions of Fragments Originating from the Fission of Excited Nuclei

NUCLEAR REACTIONS 232Th(12C, F), E=97 MeV; 249Cf(16O, F), E=145 MeV; calculated fission fragment mass distributions, neutron yields following compound nucleus decay. Liquid drop model.

doi: 10.1134/1.1326976
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