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NSR database version of April 11, 2024.

Search: Author = J.Randrup

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2024DO02      Phys.Rev. C 109, 034615 (2024)

T.Dossing, S.AAberg, M.Albertsson, B.G.Carlsson, J.Randrup

Angular momentum in fission fragments

doi: 10.1103/PhysRevC.109.034615
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2023GI01      Phys.Rev. C 107, 014612 (2023)

N.P.Giha, S.Marin, J.A.Baker, I.E.Hernandez, K.J.Kelly, M.Devlin, J.M.O'Donnell, R.Vogt, J.Randrup, P.Talou, I.Stetcu, A.E.Lovell, O.Litaize, O.Serot, A.Chebboubi, C.-Y.Wu, S.D.Clarke, S.A.Pozzi

Correlations between energy and γ-ray emission in 239Pu(n, f)

NUCLEAR REACTIONS 239Pu(n, f), E=2-40 MeV; measured fragments, En, In, Eγ, Iγ, (fragments)γ-coin, (fragment)n-coin, nγ-coin; deduced γ spectrum, γ multiplicity, linear relation between incident neutron energy and γ multiplicity. Comparison to fission model calculations done with CGMF, FIFRELIN and FREYA codes. Multiplicity results are compared to ENDF/B-VIII.0 data and to experimental data on 238U(n, F), 239Pu(d, F), 233Pu(d, F), 240Pu(d, F) reactions. Broad-spectrum neutron beam produced via spallation reaction of an 800 MeV proton beam on W target (Los Alamos Neutron Science Center). Chi-Nu liquid scintillator array, a hemispherical array of 54 EJ-309 (n- and γ- measurement) surrounding multifoil parallel-plate avalanche counter (PPAC) serving as target and contain ing 239Pu (fragment measurement).

doi: 10.1103/PhysRevC.107.014612
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2023GJ01      Phys.Rev. C 108, 064602 (2023)

D.Gjestvang, J.N.Wilson, A.Al-Adili, S.Siem, Z.Gao, J.Randrup, D.Thisse, M.Lebois, N.Jovancevic, R.Canavan, M.Rudigier, D.Etasse, R.-B.Gerst, E.Adamska, P.Adsley, A.Algora, C.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.Courtin, M.L.Cortes, P.Davies, C.Delafosse, M.Fallot, B.Fornal, L.Fraile, A.Gottardo, V.Guadilla, G.Hafner, K.Hauschild, M.Heine, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, P.Ivanov, S.Jazrawi, A.Korgul, P.Koseoglou, T.Kroll, T.Kurtukian-Nieto, S.Leoni, J.Ljungvall, A.Lopez-Martens, R.Lozeva, I.Matea, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa-Silkowska, Y.Popovitch, C.Porzio, L.Qi, P.H.Regan, K.Rezynkina, V.Sanchez-Tembleque, C.Schmitt, P.-A.Soderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, N.Warr, B.Wasilewska, J.Wiederhold, M.Yavahchova, S.Ziliani

Examination of how properties of a fissioning system impact isomeric yield ratios of the fragments

doi: 10.1103/PhysRevC.108.064602
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2022MA26      Phys.Rev. C 105, 054609 (2022)

S.Marin, E.P.Sansevero, M.S.Okar, I.E.Hernandez, R.Vogt, J.Randrup, S.D.Clarke, V.A.Protopopescu, S.A.Pozzi

Directional dependence of the event-by-event neutron-γ multiplicity correlations in 252Cf(sf)

RADIOACTIVITY 252Cf(SF); analyzed Eg and En data collected at the Chi-Nu array at the Los Alamos Neutron Science Center with considering the angle between the emitted particles in addition to their individual energies; deduced nγ-correlations, enhancement of γ-emission around 0.7 and 1.2 MeV, directional alignment for Eγ below 0.7 MeV, correlation between fragment excitation energies and angular momentum. Comparison with model calculations.

doi: 10.1103/PhysRevC.105.054609
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2022RA19      Phys.Rev. C 106, 014609 (2022)

J.Randrup, T.Dossing, R.Vogt

Probing fission fragment angular momenta by photon measurements

RADIOACTIVITY 252Cf(SF); calculated relaxation times for wriggling, bending and twisting as function of neck radius, angular distribution of the collective E2 photons from fission fragments, average angular distribution coefficients, distribution of the opening angle between pairs of E2 photons emitted from even-even product partners. Discussed how certain photon measurements may helpin investigations the of the various rotational modes in fission. Simulations with fission event generator FREYA.

doi: 10.1103/PhysRevC.106.014609
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2022RA26      Phys.Rev. C 106, L051601 (2022)


Coupled fission fragment angular momenta

RADIOACTIVITY 252Cf(SF); calculated fission fragments spin opening angle, spin-spin opening angle distribution. Direct microcanonical and normalmodes sampling procedures. Comparing with calculations made with FREYA code and results obtained in the framework of antisymmetrized molecular dynamics.

NUCLEAR REACTIONS 235U(n, F), E=thermal; distribution of the fragment spin opening angle. 2D sampling of the three angular momenta, using moments of inertia corresponding either to touching or to scission.

doi: 10.1103/PhysRevC.106.L051601
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2021AL03      Phys.Rev. C 103, 014609 (2021)

M.Albertsson, B.G.Carlsson, T.Dossing, P.Moller, J.Randrup, S.Aberg

Correlation studies of fission-fragment neutron multiplicities

NUCLEAR REACTIONS 235U(n, F), E=0, 5.55 MeV; calculated total fragment kinetic energy (TKE) and distribution of TKE versus heavy-fragment mass number, number of scission events in log scale versus fission fragment mass number and total kinetic energy (TKE), probability distribution for the heavy-fragment share of intrinsic energy, average of the light and heavy-fragment intrinsic energies, average fragment distortion energies and deformations at scission versus TKE, average multiplicity of neutrons evaporated from the light or heavy fragment as function of TKE. Nuclear shape evolution from the ground-state shape to scission obtained from METROPOLIS walk method on the five-dimensional potential-energy surfaces, calculated with the macroscopic-microscopic method for the three-quadratic-surface (3QS) parametrization.

doi: 10.1103/PhysRevC.103.014609
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2021AL31      Phys.Rev. C 104, 064616 (2021)

M.Albertsson, B.G.Carlsson, T.Dossing, P.Moller, J.Randrup, S.Aberg

Super-short fission mode in fermium isotopes

RADIOACTIVITY 256,258,260,262Fm(SF); calculated potential energy along the paths for the standard and the super-short fission modes, as function of quadrupole moment. 260Fm(SF); calculated contour plots of the number of fission in the A-TKE plane based on 105 spontaneous or thermal fission events. 254,256,258,260,262,264,266,268Fm(SF); calculated contour plot of fraction of fissions via the super-short mode, with typical scission shapes for the two modes. 254,256,258,260Fm(SF); calculated primary fragment mass yields for spontaneous and thermal fission, total kinetic-energy (TKE) distributions. 254,256,258,260,262,264,266,268Fm, 259,260Md(SF); calculated TKE and average total neutron multiplicity versus the neutron number of the initial nucleus. Metropolis method for the super-short fission mode to simulate the strongly damped fission dynamics driven by shape- and energy-dependent level densities, and analyzing scission configurations. Comparison with experimental data.

doi: 10.1103/PhysRevC.104.064616
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2021GJ01      Phys.Rev. C 103, 034609 (2021)

D.Gjestvang, S.Siem, F.Zeiser, J.Randrup, R.Vogt, J.N.Wilson, F.Bello-Garrote, L.A.Bernstein, D.L.Bleuel, M.Guttormsen, A.Gorgen, A.C.Larsen, K.L.Malatji, E.F.Matthews, A.Oberstedt, S.Oberstedt, T.Tornyi, G.M.Tveten, A.S.Voyles

Excitation energy dependence of prompt fission γ-ray emission from 241Pu

NUCLEAR REACTIONS 240Pu(d, pF)241Pu*, E=13.5 MeV; measured outgoing protons using SiRi, a silicon ΔE-E detector, fission fragments using NIFF, consisting of four parallel plate avalanche counters (PPACs), prompt fission γ rays (PFG), (particle)γ-coin using Oslo Scintillator Array (OSCAR) of 30 LaBr3:Ce scintillators for γ radiation at the Oslo Cyclotron Laboratory; deduced average total PFG multiplicity per fission, average total PFG energy released per fission, and the average PFG energy in the excitation range of 5.75-8.25 MeV. Comparison with simulations using the fission model FREYA, with previous experimental results, and evaluation in ENDF/B-VIII.0.

doi: 10.1103/PhysRevC.103.034609
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23783.

2021MA51      Phys.Rev. C 104, L021601 (2021)

P.Marevic, N.Schunck, J.Randrup, R.Vogt

Angular momentum of fission fragments from microscopic theory

NUCLEAR REACTIONS 239Pu(n, F), E=thermal; calculated angular-momentum distributions of 24 fission fragments over a wide range of fragment masses, and total average photon multiplicities. 239Pu(n, F)128Sn/132Sn/138Xe/130Sn/150Ce/110Ru/90Kr, E=thermal; calculated angular-momentum distributions of primary fission fragments, with binding energy calculated as a function of the quadrupole deformation parameter β2 using the HFB model; deduced dependency of nuclear shell structure and deformation on the angular momentum of the fragments. Calculations used fission model FREYA, and a starting set of 1545 scission configurations.

doi: 10.1103/PhysRevC.104.L021601
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2021MA54      Phys.Rev. C 104, 024602 (2021)

S.Marin, M.S.Okar, E.P.Sansevero, I.E.Hernandez, C.A.Ballard, R.Vogt, J.Randrup, P.Talou, A.E.Lovell, I.Stetcu, O.Serot, O.Litaize, A.Chebboubi, S.D.Clarke, V.A.Protopopescu, S.A.Pozzi

Structure in the event-by-event energy-dependent neutron-γ multiplicity correlations in 252Cf(sf)

RADIOACTIVITY 252Cf(SF); analyzed Eγ and E(n) data collected at the Chi-Nu array at the Los Alamos Neutron Science Center with the application of the normalized differential multiplicity covariances; deduced neutron-γ correlations, evidence for enhancements in neutron-γ correlations around Eγ=0.7 and 1.2 MeV. Comparison with model calculations. Relevance to disagreement in the literature about correlations between neutron-γ competition and fragment properties.

doi: 10.1103/PhysRevC.104.024602
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2021RA14      Phys.Rev.Lett. 127, 062502 (2021)

J.Randrup, R.Vogt

Generation of Fragment Angular Momentum in Fission

NUCLEAR REACTIONS 235,238U, 239Pu(n, F), E not given; calculated fission fragments distribution. Comparison with available data. The fission model FREYA.

RADIOACTIVITY 252CF(SF); calculated fission fragments distribution. Comparison with available data. The fission model FREYA.

doi: 10.1103/PhysRevLett.127.062502
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2021ST06      Nucl.Phys. A1005, 121867 (2021)

J.Steinheimer, L.-G.Pang, K.Zhou, V.Koch, J.Randrup, H.Stoecker

A machine learning study on spinodal clumping in heavy ion collisions

doi: 10.1016/j.nuclphysa.2020.121867
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2021VO02      Phys.Rev. C 103, 014610 (2021)

R.Vogt, J.Randrup

Angular momentum effects in fission

NUCLEAR REACTIONS 235U(n, F), E=0.1, 20 MeV; calculated distribution of the opening angle between the spins of the two primary fission fragments, angular distribution of the evaporated neutrons relative to the spin direction of the emitting fragment, mean number of photons emitted as a function of the sum of spins of two primary fragments, contour plot of the velocity distribution of evaporated neutrons, distribution of neutron-neutron opening angle in the plane transverse to the direction of the light product nucleus. 235U(n, F), E>0, <1, >2 MeV; calculated laboratory angular distribution of the evaporated neutrons relative to the direction of the light primary fragment, with and without a rotational boost. 235U(n, F), E>2, <2 MeV; calculated two-neutron angular correlations. 235,235mU(n, F), E=thermal; calculated neutron multiplicity as a function of TKE. Calculations used fission simulation model FREYA, a Monte Carlo approach.

doi: 10.1103/PhysRevC.103.014610
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2020AL01      Eur.Phys.J. A 56, 46 (2020)

M.Albertsson, B.G.Carlsson, T.Dossing, P.Moller, J.Randrup, S.Aberg

Calculated fission-fragment mass yields and average total kinetic energies of heavy and superheavy nuclei

doi: 10.1140/epja/s10050-020-00036-9
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2020BE28      J.Phys.(London) G47, 113002 (2020)

M.Bender, R.Bernard, G.Bertsch, S.Chiba, J.Dobaczewski, N.Dubray, S.A.Giuliani, K.Hagino, D.Lacroix, Z.Li, P.Magierski, J.Maruhn, W.Nazarewicz, J.Pei, S.Peru, N.Pillet, J.Randrup, D.Regnier, P.G.Reinhard, L.M.Robledo, W.Ryssens, J.Sadhukhan, G.Scamps, N.Schunck, C.Simenel, J.Skalski, I.Stetcu, P.Stevenson, S.Umar, M.Verriere, D.Vretenar, M.Warda, S.Aberg

Future of nuclear fission theory

doi: 10.1088/1361-6471/abab4f
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2020MU06      Phys.Rev. C 101, 054607 (2020)

M.R.Mumpower, P.Jaffke, M.Verriere, J.Randrup

Primary fission fragment mass yields across the chart of nuclides

NUCLEAR REACTIONS 226Th, 235U, 259Md, 276No(n, F)227Th/236U/260Md/277No, T=0.5-1.5 MeV; 229Th, 237Np, 239Pu, 245Cm, 255,257Fm(n, F)230Th/238Np/240Pu/246Cm/256Fm/258Fm, E*=5.8-6.8 MeV; 205At, 208Rn, 209Fr, 211Ra, 216Ac, 222Th, 230Pa, 233U(n, F)206At/209Rn/210Fr/212Ra/217Ac/223Th/231Pa/234U, E*=11 MeV; calculated mass yield distributions. 236U, 240Pu, 234Cm; calculated projected potential energy surfaces. Z=80-130, A=171-330: calculated mass yield distributions for 3800 nuclei listed as tabular text files in the supplementary material. Finite-Range Liquid-Drop Model (FRLDM). Comparison with experimental data.

doi: 10.1103/PhysRevC.101.054607
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2019RA13      Phys.Rev. C 99, 054619 (2019)

J.Randrup, P.Talou, R.Vogt

Sensitivity of neutron observables to the model input in simulations of 252Cf(sf)

RADIOACTIVITY 252Cf(SF); analyzed mass distribution, total kinetic energy (TKE), width of the total kinetic energy distribution of fission fragments; calculated neutron multiplicity distribution, neutron multiplicity covariance matrix elements, factorial moments of the neutron multiplicity distribution, neutron spectra, angular distribution of two neutrons, neutron energy-energy correlation, anticorrelation between average total kinetic energy and average neutron multiplicity using the FREYA code. Comparison with experimental data.

COMPILATION 252Cf; compiled experimental data for spontaneous fission of 252Cf for mass-dependent fragment yields, the mass-dependent average total fragment kinetic energy (TKE), and the associated TKE dispersion σ(TKE, A) based on entries in the EXFOR database from 1963 to 2014.

doi: 10.1103/PhysRevC.99.054619
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2019SC12      Phys.Rev. C 100, 014605 (2019)

P.F.Schuster, M.J.Marcath, S.Marin, S.D.Clarke, M.Devlin, R.C.Haight, R.Vogt, P.Talou, I.Stetcu, T.Kawano, J.Randrup, S.A.Pozzi

High resolution measurement of tagged two-neutron energy and angle correlations in 252Cf (sf)

RADIOACTIVITY 252Cf(SF); measured prompt neutron time of flight, angular distribution of neutrons, nn-coin, prompt neutron emission anisotropy, correlations in angle and energy between prompt neutrons emitted in spontaneous fission using fission chamber and the Chi-Nu liquid scintillator detector array at LANSCE-LANL facility. Comparison with simulations produced by the fission event generators CGMF, FREYA, and MCNPX-POLIMI IPOL(1)=1.

doi: 10.1103/PhysRevC.100.014605
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14574.

2018MA25      Phys.Rev. C 97, 044622 (2018)

M.J.Marcath, R.C.Haight, R.Vogt, M.Devlin, P.Talou, I.Stetcu, J.Randrup, P.F.Schuster, S.D.Clarke, S.A.Pozzi

Measured and simulated 252Cf(sf) prompt neutron-photon competition

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, E(n), I(n), nγ-coin, time of flight distributions for neutrons and photons, event-by-event neutron-photon correlation using Chi-Nu liquid scintillator array of 45 liquid organic scintillation detectors and a fission chamber at LANL; deduced neutron and photon multiplicities. Comparison with MCPNX-PoliMi simulation with CGMF and FREYA models.

doi: 10.1103/PhysRevC.97.044622
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2018TA05      Eur.Phys.J. A 54, 9 (2018)

P.Talou, R.Vogt, J.Randrup, M.E.Rising, S.A.Pozzi, J.Verbeke, M.T.Andrews, S.D.Clarke, P.Jaffke, M.Jandel, T.Kawano, M.J.Marcath, K.Meierbachtol, L.Nakae, G.Rusev, A.Sood, I.Stetcu, C.Walker

Correlated prompt fission data in transport simulations

COMPILATION 235U, 239Pu(n, F), E=thermal;252Cf(SF); compiled average prompt fission neutron multiplicity vs fragment mass, prompt fission neutron σ(En), γ-decay energy spectrum σ(Eγ), γ multiplicity, n-n angular correlation. Calculated σ, yields using FREYA and CGMF codes. Compared with data.

doi: 10.1140/epja/i2018-12455-0
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2017CL01      Phys.Rev. C 95, 064612 (2017)

S.D.Clarke, B.M.Wieger, A.Enqvist, R.Vogt, J.Randrup, R.C.Haight, H.Y.Lee, B.A.Perdue, E.Kwan, C.Y.Wu, R.A.Henderson, S.A.Pozzi

Measurement of the energy and multiplicity distributions of neutrons from the photofission of 235U

NUCLEAR REACTIONS 235U(γ, F), E<800 MeV white photon source; measured E(n), I(n), neutron time-of-flight spectrum, prompt fission neutron spectrum, neutron multiplicity distribution, average energy of correlated photofission neutron pairs as function of the angle between detectors at the WNR-15L beam line at LANSCE-LANL. Comparison with simulations using FREYA and MCNPX-POLIMI codes.

doi: 10.1103/PhysRevC.95.064612
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0224.

2017VO13      Phys.Rev. C 96, 064620 (2017)

R.Vogt, J.Randrup

Improved modeling of photon observables with the event-by-event fission model FREYA

RADIOACTIVITY 252Cf(SF); calculated photon spectrum, average total photon energy, average photon multiplicity, and energy per photon as a function of fragment mass, total photon energy and the photon multiplicity as functions of total fragment kinetic energy with and without the GDR and RIPL-3, mean total photon energy, mean photon multiplicity and energy per photon as functions of fragment mass number, average fragment angular momentum as function of fragment mass, total photon energy, and photon multiplicity as functions of total fragment kinetic energy TKE, photon multiplicity distributions. Calculations using FREYA (Fission Reaction Event Yield Algorithm) code. Comparison with experimental data.

NUCLEAR REACTIONS 233,235U, 239Pu(n, F), E=thermal; calculated total photon energy and photon multiplicity, energy per photon as function of fragment mass, total photon energy as a function of total fragment kinetic energy (TKE), photon energy spectrum. Calculations using FREYA (Fission Reaction Event Yield Algorithm) code. Comparison with experimental data.

doi: 10.1103/PhysRevC.96.064620
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2017WA08      Phys.Rev. C 95, 024618 (2017)

D.E.Ward, B.G.Carlsson, T.Dossing, P.Moller, J.Randrup, S.AAberg

Nuclear shape evolution based on microscopic level densities

NUCLEAR REACTIONS 226Th, 234,236U, 240Pu(γ, F), (n, F), E(n)=thermal; calculated yield of fragments as function of proton number and angular momentum and excitation energy using parameter-free microscopic level densities obtained with the Metropolis-walk method. Comparison with experimental data.

NUCLEAR STRUCTURE 236U; calculated microscopic level density as a function of angular momentum and excitation energy, potential-energy curves and mass asymmetry versus elongation using Metropolis walk, combinatorial method.

doi: 10.1103/PhysRevC.95.024618
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2016BL07      Eur.Phys.J. A 52, 267 (2016)

D.Blaschke, J.Aichelin, E.Bratkovskaya, V.Friese, M.Gazdzicki, J.Randrup, O.Rogachevsky, O.Teryaev, V.Toneev

Topical issue on Exploring Strongly Interacting Matter at High Densities - NICA White Paper

doi: 10.1140/epja/i2016-16267-x
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2016RA32      Eur.Phys.J. A 52, 218 (2016)

J.Randrup, J.Cleymans

Exploring high-density baryonic matter: Maximum freeze-out density

doi: 10.1140/epja/i2016-16218-7
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2016ST23      Eur.Phys.J. A 52, 239 (2016)

J.Steinheimer, J.Randrup

Spinodal amplification and baryon number fluctuations in nuclear collisions at NICA

doi: 10.1140/epja/i2016-16239-2
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2016WA03      Phys.Rev. C 93, 014606 (2016)

T.Wang, G.Li, L.Zhu, Q.Meng, L.Wang, H.Han, W.Zhang, H.Xia, L.Hou, R.Vogt, J.Randrup

Correlations of neutron multiplicity and γ-ray multiplicity with fragment mass and total kinetic energy in spontaneous fission of 252Cf

RADIOACTIVITY 252Cf(SF); measured E(n), I(n), Eγ, Iγ; deduced total kinetic energy (TKE), neutron and γ-ray multiplicities, correlations of neutron and γ-ray multiplicities, ratio of average γ-ray yield to the average neutron multiplicity as function of fragment mass, γ-ray multiplicity as a function of the total fragment kinetic energy TKE.

doi: 10.1103/PhysRevC.93.014606
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset32788.

2015MO07      Phys.Rev. C 91, 044316 (2015)

P.Moller, J.Randrup

Calculated fission-fragment yield systematics in the region 74≤Z≤94 and 90≤N≤150

RADIOACTIVITY Z=74-94, N=90-150(SF); 186,190,196W, 195,201Au, 171,176,180,198,202Hg, 199,201,203Tl, 206,210Po, 195,201,207Bi, 209,213At(SF), [compound nuclei in the excitation range of 11-38 MeV]; calculated fission-fragment mass yields for 987 nuclides; reference database for theoretical fission-fragment mass yields. Benchmarked Brownian shape-motion method with random walks on the previously calculated five-dimensional potential-energy surfaces. Comparison with available data.

doi: 10.1103/PhysRevC.91.044316
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2015VE02      Comput.Phys.Commun. 191, 178 (2015)

J.M.Verbeke, J.Randrup, R.Vogt

Fission Reaction Event Yield Algorithm, FREYA - For event-by-event simulation of fission

doi: 10.1016/j.cpc.2015.02.002
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2014GH09      Phys.Rev. C 90, 041301 (2014)

L.Ghys, A.N.Andreyev, M.Huyse, P.Van Duppen, S.Sels, B.Andel, S.Antalic, A.Barzakh, L.Capponi, T.E.Cocolios, X.Derkx, H.De Witte, J.Elseviers, D.V.Fedorov, V.N.Fedosseev, F.P.Hessberger, Z.Kalaninova, U.Koster, J.F.W.Lane, V.Liberati, K.M.Lynch, B.A.Marsh, S.Mitsuoka, P.Moller, Y.Nagame, K.Nishio, S.Ota, D.Pauwels, R.D.Page, L.Popescu, D.Radulov, M.M.Rajabali, J.Randrup, E.Rapisarda, S.Rothe, K.Sandhu, M.D.Seliverstov, A.M.Sjodin, V.L.Truesdale, C.Van Beveren, P.Van den Bergh, Y.Wakabayashi, M.Warda

Evolution of fission-fragment mass distributions in the neutron-deficient lead region

RADIOACTIVITY 194,196At, 200,202Fr(β+F)[from U(p, X), E=1.4 GeV at CERN-ISOLDE using HRS and GPS separators]; measured mass and energy distributions of coincident fission fragments after β-delayed fission, ratio of α to β-delayed-fission decays, total kinetic energy. 196At, 200Fr; deduced β-delayed fission decay probabilities, new region of multimodal fission in the neutron-deficient lead region. 196Po; Calculated potential energy surface contour. Comparison with Finite-range liquid-drop (FRLDM) and Hartree-Fock-Bogoliubov (HFB) model calculations. Comparison with experimental results for β-delayed fission of 180Tl.

doi: 10.1103/PhysRevC.90.041301
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Data from this article have been entered in the XUNDL database. For more information, click here.

2014MO17      Phys.Rev. C 90, 014601 (2014)

P.Moller, J.Randrup, A.Iwamoto, T.Ichikawa

Fission-fragment charge yields: Variation of odd-even staggering with element number, energy, and charge asymmetry

NUCLEAR REACTIONS 234U, 240Pu(n, F), E=thermal; 222,226,228Th, 234U(γ, F), E=11 MeV; analyzed magnitude of the odd-even staggering for fission-fragment charge-yield distributions; deduced total energies, potential energies, and excitation energies from saddle to scission at different locations in the five-dimensional deformation space; correlation of odd-even staggering with excitation energy.

doi: 10.1103/PhysRevC.90.014601
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2014MU01      Phys.Rev. C 89, 034615 (2014)

J.M.Mueller, M.W.Ahmed, R.H.France, M.S.Johnson, H.J.Karwowski, L.S.Myers, J.Randrup, M.H.Sikora, M.C.Spraker, S.Stave, J.R.Tompkins, R.Vogt, H.R.Weller, C.S.Whisnant, W.R.Zimmerman

Prompt neutron polarization asymmetries in photofission of 232Th, 233, 235, 238U, 237Np, and 239, 240Pu

NUCLEAR REACTIONS 232Th, 233,235,238U, 237Np, 239,240Pu(polarized γ, F), E=5.3-7.6 MeV; measured E(n), I(n), time-of flight spectrum, angular distribution, and polarization asymmetry of prompt neutrons generated by fission, θ(fragment) at HIγS-TUNL facility; deduced angular distribution coefficients b and c, and compared with predicted values from FREYA computer code of event-by-event Monte Carlo prompt neutron+γ-ray emission calculation. Discussed differences in polarization asymmetries between the even-even actinides and odd-A actinides.

doi: 10.1103/PhysRevC.89.034615
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2014RA09      Phys.Rev. C 89, 044601 (2014)

J.Randrup, R.Vogt

Refined treatment of angular momentum in the event-by-event fission model freya

RADIOACTIVITY 252Cf(SF); calculated angular correlation of evaporated neutrons, angular distribution of neutrons relative to the direction of the angular momentum of the emitted nucleus, photon multiplicity distribution using refined event-by-event fission model FREYA code. Treatment of angular momenta in FREYA. Comparison with experimental data.

NUCLEAR REACTIONS 239Pu(n, F), E=thermal; calculated distribution of the angle between the post-evaporation fragment angular momentum and that of the of the initial compound nucleus using improved FREYA code.

doi: 10.1103/PhysRevC.89.044601
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2014ST07      Phys.Rev. C 89, 034901 (2014)

J.Steinheimer, J.Randrup, V.Koch

Non-equilibrium phase transition in relativistic nuclear collisions: Importance of the equation of state

doi: 10.1103/PhysRevC.89.034901
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2014TA16      Nucl.Data Sheets 118, 227 (2014)

P.Talou, T.Kawano, I.Stetcu, R.Vogt, J.Randrup

Monte Carlo Predictions of Prompt Fission Neutrons and Photons: a Code Comparison

RADIOACTIVITY 252Cf(SF); calculated neutron, γ average kinetic energy, neutron multiplicity, γ multiplicity from different fission fragments. Compared with

doi: 10.1016/j.nds.2014.04.043
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2014VO04      Nucl.Data Sheets 118, 220 (2014)

R.Vogt, J.Randrup

Event-by-event Modeling of Prompt Neutrons and Photons from Neutron-induced and Spontaneous Fission with FREYA

NUCLEAR REACTIONS 235U, 239Pu(n, F), E not given (probably low); calculated neutron, γ average kinetic energy, neutron multiplicity, γ multiplicity from fission fragments. Compared with other calculations and data.

RADIOACTIVITY 252Cf(SF); calculated neutron, γ average kinetic energy, neutron multiplicity, γ multiplicity from fission fragments. Compared with other calculations and data.

doi: 10.1016/j.nds.2014.04.041
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2014VO14      Phys.Rev. C 90, 064623 (2014)

R.Vogt, J.Randrup

Neutron angular correlations in spontaneous and neutron-induced fission

NUCLEAR REACTIONS 235U(n, F), E>0.425 keV; calculated nn(θ, E(n)) between two neutrons emitted in fission using event-by-event models of fission, FREYA. Comparison with experimental data, including that for thermal-neutron induced fission.

RADIOACTIVITY 252Cf(SF); calculated nn(θ) between two neutrons emitted as a function of the opening angle, neutron multiplicity distribution using event-by-event models of fission, FREYA. Comparison with experimental data.

doi: 10.1103/PhysRevC.90.064623
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2013RA34      Phys.Rev. C 88, 064606 (2013)

J.Randrup, P.Moller

Energy dependence of fission-fragment mass distributions from strongly damped shape evolution

NUCLEAR REACTIONS Pb(205At, X), E*=19.41 MeV; Pb(206At, X), E*=20.63 MeV; Pb(204Rn, X), E*=16.10 MeV; Pb(205Rn, X), E*=17.20 MeV; Pb(206Rn, X), E*=18.20 MeV; Pb(207Rn, X), E*=19.14 MeV; Pb(208Rn, X), E*=19.93 MeV; Pb(209Rn, X), E*=20.75 MeV; Pb(206Fr, X), E*=15.98 MeV; Pb(207Fr, X), E*=16.84 MeV; Pb(208Fr, X), E*=17.71 MeV; Pb(209Fr, X), E*=18.60 MeV; Pb(210Fr, X), E*=19.40 MeV; Pb(211Fr, X), E*=20.02 MeV; Pb(212Fr, X), E*=20.72 MeV; Pb(217Fr, X), E*=16.74 MeV; Pb(218Fr, X), E*=16.40 MeV; Pb(209Ra, X), E*=16.54 MeV; Pb(210Ra, X), E*=17.26 MeV; Pb(211Ra, X), E*=18.00 MeV; Pb(212Ra, X), E*=18.40 MeV; Pb(213Ra, X), E*=19.11 MeV; Pb(214Ra, X), E*=18.94 MeV; Pb(215Ra, X), E*=17.93 MeV; Pb(216Ra, X), E*=17.01 MeV; Pb(217Ra, X), E*=15.80 MeV; Pb(218Ra, X), E*=15.25 MeV; Pb(219Ra, X), E*=14.81 MeV; Pb(212Ac, X), E*=16.66 MeV; Pb(213Ac, X), E*=17.00 MeV; Pb(214Ac, X), E*=17.52 MeV; Pb(215Ac, X), E*=17.36 MeV; Pb(216Ac, X), E*=16.19 MeV; Pb(217Ac, X), E*=15.08 MeV; Pb(218Ac, X), E*=14.40 MeV; Pb(219Ac, X), E*=14.03 MeV; Pb(220Ac, X), E*=13.71 MeV; Pb(221Ac, X), E*=13.34 MeV; Pb(222Ac, X), E*=13.13 MeV; Pb(223Ac, X), E*=12.69 MeV; Pb(224Ac, X), E*=12.50 MeV; Pb(225Ac, X), E*=12.05 MeV; Pb(226Ac, X), E*=11.71 MeV; Pb(217Th, X), E*=15.02 MeV; Pb(218Th, X), E*=13.99 MeV; Pb(219Th, X), E*=13.17 MeV; Pb(220Th, X), E*=12.45 MeV; Pb(221Th, X), E*=12.27 MeV; Pb(222Th, X), E*=11.99 MeV; Pb(223Th, X), E*=12.20 MeV; Pb(224Th, X), E*=11.85 MeV; Pb(225Th, X), E*=11.59 MeV; Pb(226Th, X), E*=11.20 MeV; Pb(227Th, X), (228Th, X), (229Th, X), (224Pa, X), (225Pa, X), (226Pa, X), (227Pa, X), (228Pa, X), (229Pa, X), (230Pa, X), (231Pa, X), (232Pa, X), (230U, X), (231U, X), (232U, X), (233U, X), (234U, X), E*=11.0 MeV, [secondary At, Rn, Fr, Ra, Ac, Th, Pa, U beams from 9Be(238U, X), E=1 GeV/nucleon primary fragmentation reaction, fission by γ rays produced in incident secondary beams on a Pb target via the GDR]; calculated relative fission fragment charge yield distributions as function of nuclear excitation energy by Metropolis method. Comparison and benchmarking with experimental data from GSI. Shell-plus-pairing correction term. Damped Brownian shape evolution.

doi: 10.1103/PhysRevC.88.064606
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2013ST07      Phys.Rev. C 87, 054903 (2013)

J.Steinheimer, J.Randrup

Spinodal density enhancements in simulations of relativistic nuclear collisions

doi: 10.1103/PhysRevC.87.054903
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2013VO04      Phys.Rev. C 87, 044602 (2013)

R.Vogt, J.Randrup

Event-by-event study of photon observables in spontaneous and thermal fission

RADIOACTIVITY 252Cf(SF); analyzed prompt photon multiplicity distribution as function of fragment mass and TKE, average neutron multiplicity as a function of fragment TKE, neutron-photon correlations, nn(θ). Event-by-event FREYA fission model by assuming no competition between prompt photon and neutron emissions.

NUCLEAR REACTIONS 235U(n, F), E=thermal; analyzed prompt photon multiplicity distribution, neutron-photon correlations. Event-by-event FREYA fission model by assuming no competition between prompt photon and neutron emissions.

doi: 10.1103/PhysRevC.87.044602
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2012MO04      Phys.Rev. C 85, 024306 (2012)

P.Moller, J.Randrup, A.J.Sierk

Calculated fission yields of neutron-deficient mercury isotopes

RADIOACTIVITY 180Tl(EC); calculated Gamow-Teller β-strength function, T1/2. Comparison with experimental data. 174,176,178,180,182,184,186,188Hg(SF); calculated fragment mass yields. Method of Brownian shape motion.

NUCLEAR STRUCTURE 174,180,188Hg; calculated potential-energy surfaces, energy minima, saddles, major valleys, major ridges. Brownian shape motion (Metropolis) treatment.

doi: 10.1103/PhysRevC.85.024306
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2012PI13      Phys.Rev. C 86, 025203 (2012)

M.B.Pinto, V.Koch, J.Randrup

Surface tension of quark matter in a geometrical approach

doi: 10.1103/PhysRevC.86.025203
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2012RA26      Phys.Scr. T150, 014033 (2012)

J.Randrup, P.Moller

Brownian shape motion: fission fragment mass distributions

NUCLEAR REACTIONS 240Pu, 234,236U, 222,224,226,228Th(n, F), E=6-11 MeV; calculated fission fragment yields. Comparison with experimental data.

doi: 10.1088/0031-8949/2012/T150/014033
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2012ST16      Phys.Rev.Lett. 109, 212301 (2012)

J.Steinheimer, J.Randrup

Spinodal Amplification of Density Fluctuations in Fluid-Dynamical Simulations of Relativistic Nuclear Collisions

doi: 10.1103/PhysRevLett.109.212301
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2012VO01      Phys.Rev. C 85, 024608 (2012)

R.Vogt, J.Randrup, D.A.Brown, M.A.Descalle, W.E.Ormand

Event-by-event evaluation of the prompt fission neutron spectrum from 239Pu(n, f)

NUCLEAR REACTIONS 239Pu(n, F), E<20 MeV; analyzed chance fission probability, probability for pre-equilibrium neutron emission, fragment mass yields, total and average fragment kinetic energies, neutron multiplicity, prompt neutron spectra, neutron-neutron correlation coefficient contour plots. Event-by-event fission model FREYA with multichance fission and pre-equilibrium neutron emission. Comparison with ENDF-B/VII.0 evaluation.

doi: 10.1103/PhysRevC.85.024608
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2011RA02      Phys.Rev.Lett. 106, 132503 (2011)

J.Randrup, P.Moller

Brownian Shape Motion on Five-Dimensional Potential-Energy Surfaces:Nuclear Fission-Fragment Mass Distributions

NUCLEAR REACTIONS 233,235U, 239Pu(n, F), E=thermal; 234U(γ, F), E=11 MeV; 222,224,226,228Th(γ, F), E=11 MeV; calculated distribution of charge fission yields. Comparison with experimental data.

doi: 10.1103/PhysRevLett.106.132503
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2011RA06      Int.J.Mod.Phys. E20, 299 (2011)


Spinodal phase separation in nuclear collisions

doi: 10.1142/S021830131101765X
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2011RA27      Phys.Rev. C 84, 034613 (2011)

J.Randrup, P.Moller, A.J.Sierk

Fission-fragment mass distributions from strongly damped shape evolution

NUCLEAR REACTIONS 239Pu(n, F)240Pu, E=8-14 MeV; 234,236U(n, F)235U/236U, E=8-14 MeV; 234U(γ, F)234U, E=8-14 MeV; 222,224,226,228Th(γ, F)222Th/224Th/226Th/228Th, E=8-14 MeV; calculated fission fragment mass and charge yields, comparison with experimental data. Random walks on a five-dimensional potential energy surface within the framework of the Smoluchowski equation of motion.

NUCLEAR STRUCTURE 222,224,226,228Th, 240Pu; calculated fission fragment mass and charge distributions. 222Th; calculated contours of three shapes relevant to fission, and the most probable symmetric fragment division in 111Rh isotope.

doi: 10.1103/PhysRevC.84.034613
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2011VO11      Phys.Rev. C 84, 044621 (2011)

R.Vogt, J.Randrup

Event-by-event study of neutron observables in spontaneous and thermal fission

RADIOACTIVITY 238U, 240Pu, 244Cm, 252Cf(SF); calculated yields, total fragment kinetic energies, neutron multiplicities, prompt fission neutron spectra, angular correlations between two neutrons. Event-by-event fission model FREYA for fission neutron correlations. Comparison with experimental data.

NUCLEAR REACTIONS 235U(n, F), 239Pu(n, F), E=thermal; calculated yields, total fragment kinetic energies, prompt fission neutron spectra, angular correlations between two neutrons. Event-by-event fission model FREYA for fission neutron correlations. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.044621
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2011VO12      J.Korean Phys.Soc. 59, 895s (2011)

R.Vogt, J.Randrup, J.Pruet, W.Younes

Calculation of 239Pu Fission Observables in an Event-by-Event Simulation

NUCLEAR REACTIONS 239Pu(n, f), E=0.5-5.5 MeV; calculated prompt σ(En), fragment TKE, average neutron multiplicity, correlation coefficients using FREYA event generator. Comparison to data.

doi: 10.3938/jkps.59.895
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2010RA18      Phys.Rev. C 82, 034902 (2010)


Spinodal phase separation in relativistic nuclear collisions

doi: 10.1103/PhysRevC.82.034902
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2009RA09      Phys.Rev. C 79, 054911 (2009)


Phase transition dynamics for baryon-dense matter

doi: 10.1103/PhysRevC.79.054911
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2009RA18      Phys.Rev. C 80, 024601 (2009)

J.Randrup, R.Vogt

Calculation of fission observables through event-by-event simulation

NUCLEAR REACTIONS 235U, 239Pu(n, X), E=0.53 MeV; calculated kinetic energy and dispersions of neutrons, total energies of fission fragments, multiplicity of neutrons emitted by fission fragments, neutron-neutron angular correlations and neutron-photon correlations using a new computational model, the fission reaction event yield algorithm (FREYA).

doi: 10.1103/PhysRevC.80.024601
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2009VO08      Phys.Rev. C 80, 044611 (2009)

R.Vogt, J.Randrup, J.Pruet, W.Younes

Event-by-event study of prompt neutrons from 239Pu(n, f)

NUCLEAR REACTIONS 239Pu(n, f), E=0.5-5.5 MeV; analyzed prompt neutron spectra from 0.1 to 10 MeV, fragment kinetic energies and excitation energies for fragment A=80-160, and average neutron multiplicities as a function of fragment mass number using Monte Carlo model FREYA. Comparisons with experimental data and ENDF-B/VII evaluations.

doi: 10.1103/PhysRevC.80.044611
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2007AR11      Phys.Rev. C 75, 034902 (2007)

I.C.Arsene, L.V.Bravina, W.Cassing, Yu.B.Ivanov, A.Larionov, J.Randrup, V.N.Russkikh, V.D.Toneev, G.Zeeb, D.Zschiesche

Dynamical phase trajectories for relativistic nuclear collisions

NUCLEAR REACTIONS Au(Au, X), E=5-40 GeV/nucleon; calculated time evolution of net baryon density and energy, related phase trajectories.

doi: 10.1103/PhysRevC.75.034902
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2007RA33      J.Phys.(London) G34, S261 (2007)


Exploring hot and baryon-dense matter with nucleus-nucleus collisions

doi: 10.1088/0954-3899/34/8/S11
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2006KO59      Nucl.Phys. A774, 643 (2006)

V.Koch, A.Majumder, J.Randrup

Strangeness trapping

doi: 10.1016/j.nuclphysa.2006.06.105
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2006KO61      Nucl.Phys. A774, 841 (2006)

V.Koch, A.Majumder, J.Randrup

Baryon-strangeness correlations: a diagnostic of strongly interacting matter

doi: 10.1016/j.nuclphysa.2006.06.147
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2006ON04      Eur.Phys.J. A 30, 109 (2006)

A.Ono, J.Randrup

Dynamical models for fragment formation

doi: 10.1140/epja/i2006-10110-1
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2006RA23      Phys.Rev. C 74, 047901 (2006)

J.Randrup, J.Cleymans

Maximum freeze-out baryon density in nuclear collisions

doi: 10.1103/PhysRevC.74.047901
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2005KO36      Phys.Rev.Lett. 95, 182301 (2005)

V.Koch, A.Majumder, J.Randrup

Baryon-Strangeness Correlations: A Diagnostic of Strongly Interacting Matter

NUCLEAR REACTIONS 197Au(197Au, X), E(cm)=200 GeV/nucleon; calculated baryon-strangeness correlation coefficient vs rapidity.

doi: 10.1103/PhysRevLett.95.182301
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2005KO46      Phys.Rev. C 72, 064903 (2005)

V.Koch, A.Majumder, J.Randrup

Signals of spinodal hadronization: Strangeness trapping

doi: 10.1103/PhysRevC.72.064903
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2005RA10      Nucl.Phys. A752, 384c (2005)


Phase Transitions from Intermediate to Relativistic Energies

doi: 10.1016/j.nuclphysa.2005.02.093
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2004CH02      Phys.Rep. 389, 263 (2004)

P.Chomaz, M.Colonna, J.Randrup

Nuclear spinodal fragmentation

doi: 10.1016/j.physrep.2003.09.006
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2004RA07      Phys.Rev.Lett. 92, 122301 (2004)


Spinodal Decomposition during the Hadronization Stage at RHIC?

doi: 10.1103/PhysRevLett.92.122301
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2004RA11      Phys.Rev. C 69, 047901 (2004)

J.Randrup, P.V.Ruuskanen

Thermodynamic consistency of the equation of state of strongly interacting matter

doi: 10.1103/PhysRevC.69.047901
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2004SO31      J.Phys.(London) G30, L35 (2004)

S.Soff, S.Kesavan, J.Randrup, H.Stocker, N.Xu

φ-meson production at RHIC, strong colour fields and intrinsic transverse momenta

NUCLEAR REACTIONS 197Au(197Au, X), E(cm)=200 GeV/nucleon; calculated φ-mesons transverse momentum spectra, particle yield ratios, effects of strong colour fields.

doi: 10.1088/0954-3899/30/12/L01
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2003RA37      Phys.Rev. C 68, 031903 (2003)


Production of the exotic Θ baryon in relativistic nuclear collisions

NUCLEAR REACTIONS 197Au(197Au, X), E=high; calculated exotic baryon production σ.

doi: 10.1103/PhysRevC.68.031903
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2003RA38      Phys.Rev. C 68, 034909 (2003)

J.Randrup, S.Mrowczynski

Chromodynamic Weibel instabilities in relativistic nuclear collisions

doi: 10.1103/PhysRevC.68.034909
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2002RA19      Phys.Rev. C65, 054906 (2002)


Charged-Pion Correlations Caused by Chiral Relaxation Dynamics in High-Energy Nuclear Collisions

doi: 10.1103/PhysRevC.65.054906
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2002RA52      Acta Phys.Hung.N.S. 16, 169 (2002)


Correlated Charged Pions from Chiral Dynamics in High-Energy Nuclear Collisions

doi: 10.1556/APH.16.2002.1-4.19
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2001RA02      Nucl.Phys. A681, 100c (2001)


Chiral Phase Transition in High-Energy Collisions

doi: 10.1016/S0375-9474(00)00489-9
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2001RA19      Phys.Rev. C63, 061901 (2001)


Probing Chiral Dynamics by Charged-Pion Correlations

doi: 10.1103/PhysRevC.63.061901
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2000BL19      Phys.Rev. C62, 041901 (2000)

M.Bleicher, J.Randrup, R.Snellings, X.-N.Wang

Enhanced Event-by-Event Fluctuations in Pion Multiplicity as a Signal of Disoriented Chiral Condensates in Relativistic Heavy-Ion Collisions

NUCLEAR REACTIONS 197Au(197Au, X), E=high; calculated pion rapidity, multiplicity distributions, factorial moments; deduced signal for disoriented chiral condensate.

doi: 10.1103/PhysRevC.62.041901
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2000PE04      Phys.Rev. C61, 024906 (2000)

T.C.Petersen, J.Randrup

Dynamical Simulation of Disoriented Chiral Condensate Formation in Bjorken Rods

doi: 10.1103/PhysRevC.61.024906
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2000RA30      Phys.Rev. C62, 064905 (2000)


Quantum Field Treatment of Disoriented-Chiral-Condensate Dynamics

doi: 10.1103/PhysRevC.62.064905
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1999HE19      Ann.Phys.(New York) 274, 1 (1999)

J.Helgesson, J.Randrup

Spin-Isospin Modes in Heavy-Ion Collisions II. Transport Simulations

NUCLEAR REACTIONS 1H(p, nX), E(cm)=2-3 GeV; calculated Δ production σ. 197Au(197Au, X), E=1 GeV/nucleon; 40Ar(p, X), E=500 MeV; calculated Δ production rates, invariant mass spectra, pions production rate, transverse momentum, related in-medium quantities. Transport simulations.

doi: 10.1006/aphy.1999.5906
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1999HI06      Prog.Theor.Phys.(Kyoto) 102, 89 (1999)

Y.Hirata, Y.Nara, A.Ohnishi, T.Harada, J.Randrup

Quantum Fluctuation Effects on Hyperfragment Formation from Ξ- Absorption at Rest on 12C

NUCLEAR REACTIONS 12C(Ξ-, X), E at rest; calculated hypernucleus fragments mass distributions; deduced quantum fluctuation effects. Microscopic transport model.

doi: 10.1143/PTP.102.89
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1999RA23      Acta Phys.Hung.N.S. 9, 289 (1999)


Enhanced Pion Production in DCC Dynamics

1999SC16      Phys.Rev. C59, 3329 (1999)

J.Schaffner-Bielich, J.Randrup

Disoriented Chiral Condensate Dynamics with the SU(3) Linear Sigma Model

doi: 10.1103/PhysRevC.59.3329
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1998HE30      Phys.Lett. 439B, 243 (1998)

J.Helgesson, J.Randrup

Transport Simulations with π and Δ In-Medium Properties

NUCLEAR REACTIONS 197Au(197Au, X), E=1 GeV/nucleon; calculated Δ resonance decay widths, invariant mass, pions transverse momentum spectra; deduced in-medium effects. Transport calculations.

doi: 10.1016/S0370-2693(98)01109-5
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1998HI16      Nucl.Phys. A639, 389c (1998)

Y.Hirata, Y.Nara, A.Ohnishi, T.Harada, J.Randrup

Formation of Twin and Double Λ Hypernuclei from Ξ- Absorption at Rest on 12C

NUCLEAR REACTIONS 12C(Ξ-, X), E at rest; calculated hypernucleus production rates.

doi: 10.1016/S0375-9474(98)00302-9
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1998KL01      Phys.Rev. C57, 280 (1998)

Y.Kluger, V.Koch, J.Randrup, X.-N.Wang

Dileptons from Disoriented Chiral Condensates

doi: 10.1103/PhysRevC.57.280
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1998KO40      Nucl.Phys. A638, 447c (1998)

V.Koch, J.Randrup, X.N.Wang, Y.Kluger

Dileptons from Disoriented Chiral Condensates

NUCLEAR REACTIONS Pb(Pb, X), E=158 GeV/nucleon; calculated dilepton invariant mass spectra.

doi: 10.1016/S0375-9474(98)00362-5
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1998OH02      Nucl.Phys. A630, 223c (1998)

A.Ohnishi, J.Randrup, Y.Hirata, N.Otuka, Y.Nara, T.Harada

Quantum Fluctuation Effects on Nuclear and Atomic Cluster Formation

doi: 10.1016/S0375-9474(97)00760-4
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1998RA06      Nucl.Phys. A630, 468c (1998)


DCC Formation and Observation in Nucleus-Nucleus Collisions

doi: 10.1016/S0375-9474(97)00786-0
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1998RA20      Nucl.Phys. A638, 439c (1998)


Transport Treatment of DCC Dynamics

doi: 10.1016/S0375-9474(98)00354-6
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1998RA24      Phys.Lett. 435B, 251 (1998)


Transport Simulation of the Linear Sigma Model

doi: 10.1016/S0370-2693(98)00858-2
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1997GU11      Phys.Lett. 403B, 191 (1997)

A.Guarnera, Ph.Chomaz, M.Colonna, J.Randrup

Multifragmentation with Brownian One-Body Dynamics

NUCLEAR STRUCTURE 197Au; calculated fragment multiplicity vs time, charge distribution after compression to double density. Brownian one-body dynamics.

doi: 10.1016/S0370-2693(97)00515-7
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1997HE12      Phys.Rev. C56, 1187 (1997)

J.Helgesson, J.Randrup

Comment on ' Influence of the In-Medium Pion Dispersion Relation in Heavy Ion Collisions '

doi: 10.1103/PhysRevC.56.1187
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1997HE19      Phys.Lett. 411B, 1 (1997)

J.Helgesson, J.Randrup

Effects of Spin-Isospin Modes in Transport Simulations

NUCLEAR REACTIONS 197Au(197Au, X), E=1 GeV/nucleon; calculated pion, Δ multiplicity, decay rates vs time, neutral pion transverse momentum spectra; deduced in-medium properties effects. Transport model.

doi: 10.1016/S0370-2693(97)00965-9
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1997OH01      Phys.Lett. 394B, 260 (1997)

A.Ohnishi, J.Randrup

Quantum Fluctuation Effects on Nuclear Fragment Formation

NUCLEAR REACTIONS 197Au(197Au, X), E=100-400 MeV/nucleon; analyzed intermediate mass fragment multiplicity before, after statistical decay. Quantal Langevin model.

doi: 10.1016/S0370-2693(97)00032-4
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1997RA11      Nucl.Phys. A616, 531 (1997)


Mean-Field Treatment of the Linear σ Model in Dynamical Calculations of DCC Observables

doi: 10.1016/S0375-9474(97)00003-1
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1996AY01      Z.Phys. A355, 407 (1996)

S.Ayik, Ph.Chomaz, M.Colonna, J.Randrup

Analysis of Boltzmann-Langevin Dynamics in Nuclear Matter

doi: 10.1007/s002180050130
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1996HE04      Nucl.Phys. A597, 672 (1996)

J.Helgesson, J.Randrup

Treatment of Pionic Modes at the Nuclear Surface for Transport Descriptions

doi: 10.1016/0375-9474(95)00433-5
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1996RA28      Acta Phys.Pol. B27, 253 (1996)


Dynamics of Catastrophic Processes in Nuclear Physics

1996RA39      Phys.Rev.Lett. 77, 1226 (1996)


Amplification of Pionic Instabilities in High-Energy Collisions ( Question )

doi: 10.1103/PhysRevLett.77.1226
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1995BU04      Nucl.Phys. A581, 356 (1995)

G.F.Burgio, Ph.Chomaz, M.Colonna, J.Randrup

Simulation of Transport Equations for Unstable Systems: Comparison between lattice and test-particle methods

doi: 10.1016/0375-9474(94)00525-R
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1995HE15      Phys.Rev. C52, 427 (1995)

J.Helgesson, J.Randrup

Dilepton Production from Pion Annihilation in a Realistic Δ-Hole Model

doi: 10.1103/PhysRevC.52.427
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