NSR Query Results
Output year order : Descending NSR database version of April 24, 2024. Search: Author = V.E.Oberacker Found 54 matches. 2016RE07 Phys.Rev. C 93, 044618 (2016) P.-G.Reinhard, A.S.Umar, P.D.Stevenson, J.Piekarewicz, V.E.Oberacker, J.A.Maruhn Sensitivity of the fusion cross section to the density dependence of the symmetry energy NUCLEAR REACTIONS 48Ca(48Ca, X)96Zr*, E(cm)=45-65 MeV; calculated folding model ion-ion interaction potentials, fusion σ(E). Impact of nuclear fusion on the nuclear equation of state (EOS). 48Ca; calculated Neutron root-mean-square radius (rms), neutron diffraction radius, and neutron halo. Dynamic microscopic method based on density-constrained time-dependent Hartree-Fock (DC-TDHF) approach, and direct TDHF study of barrier cross sections using a family of Skyrme parametrization.
doi: 10.1103/PhysRevC.93.044618
2016UM04 Phys.Rev. C 94, 024605 (2016) A.S.Umar, V.E.Oberacker, C.Simenel Fusion and quasifission dynamics in the reactions 48Ca + 249Bk and 50Ti + 249Bk using a time-dependent Hartree-Fock approach NUCLEAR REACTIONS 249Bk(48Ca, X), E(cm)=211, 218, 193-230 MeV; 249Bk(50Ti, X), E(cm)=233.2, 205-245 MeV; calculated contact time, mass and charge of the light fragment, and excitation energies of the heavy and light fragments as function of incident energy, mass-angle and mass-TKE distributions. Unrestricted time-dependent Hartree-Fock (TDHF) calculations, and the density-constrained TDHF method to extract NN potentials and excitation energy in each fragment. Relevance to the production of Z=117 and 119 superheavy elements, and fusion and quasifission processes.
doi: 10.1103/PhysRevC.94.024605
2015HA12 Phys.Rev. C 91, 041602 (2015) K.Hammerton, Z.Kohley, D.J.Hinde, M.Dasgupta, A.Wakhle, E.Williams, V.E.Oberacker, A.S.Umar, I.P.Carter, K.J.Cook, J.Greene, D.Y.Jeung, D.H.Luong, S.D.McNeil, C.S.Palshetkar, D.C.Rafferty, C.Simenel, K.Stiefel Reduced quasifission competition in fusion reactions forming neutron-rich heavy elements NUCLEAR REACTIONS 180W(50Cr, X), E(cm)=222.6 MeV; 180W(52Cr, X), E(cm)=221.2 MeV; 180W(54Cr, X), E(cm)=219.8 MeV; 186W(50Cr, X), E(cm)=221.0 MeV; 184W(52Cr, X), E(cm)=220.1 MeV; 182W(54Cr, X), E(cm)=221.0 MeV; 184W(54Cr, X), E(cm)=218.9 MeV; 186W(54Cr, X), E(cm)=218.3 MeV; measured spectra of neutron-rich fragments from fusion-fission and quasifission in coincidence mode, mass-angle distributions (MADs) using the ANU CUBE detector system at ANU's Heavy-Ion Accelerator Facility; deduced strong dependence on the N/Z of the compound system in quasifission system. Comparison with microscopic time-dependent Hartree-Fock calculations of the quasifission process.
doi: 10.1103/PhysRevC.91.041602
2015UM02 Phys.Rev. C 92, 024621 (2015) A.S.Umar, V.E.Oberacker, C.Simenel Shape evolution and collective dynamics of quasifission in the time-dependent Hartree-Fock approach NUCLEAR REACTIONS 238U(40Ca, X), E(cm)=211 MeV; 249Bk(48Ca, X), E(cm)=218 MeV; 238U(48Ca, X), E(cm)=203 MeV; calculated effect of moment of inertia on the angular distribution of the fragments, contour plot of the time evolution of the mass density for 249Bk+48Ca reaction, time dependence on the moments inertia, impact parameter and temperature using fully microscopic time-dependent Hartee-Fock (TDHF) approach.
doi: 10.1103/PhysRevC.92.024621
2015UM03 Phys.Rev. C 92, 025808 (2015) A.S.Umar, V.E.Oberacker, C.J.Horowitz, P.-G.Reinhard, J.A.Maruhn Swelling of nuclei embedded in neutron-gas and consequences for fusion NUCLEAR REACTIONS 28O(28O, X), E(cm)=2-14 MeV; 60Ca(60Ca, X), E(cm)=34-58 MeV; calculated pycnonuclear fusion cross sections and Astrophysical S factor as a function of external neutron-gas density, up to 500 neutrons for 28O and 1040 for 60Ca using Sao Paulo potential and incoming wave boundary condition (IWBC) method. Relevance to study of fusion of neutron rich nuclei at radioactive ion beam facilities, and to the study of composition and heating of the crust of accreting neutron stars.
doi: 10.1103/PhysRevC.92.025808
2015UM04 Nucl.Phys. A944, 238 (2015) Time-dependent HF approach to SHE dynamics NUCLEAR REACTIONS 238U(48Ca, x), E(cm)=185-250 MeV; calculated potential barrier for different mutual orientation of colliding nuclei, capture σ, deformation time dependence, inertia moment time dependence, light fragment charge and mass. 186W(54Cr, x), E=218.6 MeV;238U(40Ca, x), E(cm)=208-220 MeV; calculated quasifission time development for different mutual orientation of colliding nuclei, deformation, TKE, orientation angle between the nuclei, mass and charge differences, moment of inertia. DC-TDHF (Density Constrained TDHF). Compared with available data.
doi: 10.1016/j.nuclphysa.2015.02.011
2014OB06 Phys.Rev. C 90, 054605 (2014) V.E.Oberacker, A.S.Umar, C.Simenel Dissipative dynamics in quasifission NUCLEAR REACTIONS 238U(40Ca, X), (48Ca, X), E(cm)=209 MeV; calculated contact time, mass and charge of light fragment as function of impact parameter, total kinetic energy (TKE) of the quasifission (QF) fragments. Evidence of less QF in 48Ca+238U system than in 40Ca+238U, relevance to formation of superheavy elements (SHE). Discussed the effect due to magicity of 48Ca. TDHF calculations with Skyrme SLy4d energy density functional (EDF).
doi: 10.1103/PhysRevC.90.054605
2014ST22 Phys.Rev. C 90, 041603 (2014) T.K.Steinbach, J.Vadas, J.Schmidt, C.Haycraft, S.Hudan, R.T.deSouza, L.T.Baby, S.A.Kuvin, I.Wiedenhover, A.S.Umar, V.E.Oberacker Sub-barrier enhancement of fusion as compared to a microscopic method in 18O + 12C NUCLEAR REACTIONS 12C(18O, X), E=16.25, 36 MeV; measured fragment spectra, fusion σ(E) in sub-barrier domain, time-of-flight (TOF) technique at FSU tandem accelerator facility. Pulsed beam. Comparison with previous experimental results, and with density-constrained time-dependent Hartree-Fock (DC-TDHF) and coupled channel calculations.
doi: 10.1103/PhysRevC.90.041603
2014UM01 Phys.Rev. C 89, 034611 (2014) A.S.Umar, C.Simenel, V.E.Oberacker Energy dependence of potential barriers and its effect on fusion cross sections NUCLEAR REACTIONS 40Ca(40Ca, X), E(cm)=50, 53, 60, 65 MeV; 208Pb(16O, X), E(cm)=75, 80, 100 MeV; calculated ion-ion interaction potentials, fusion σ(E), fusion barrier distributions as function of incident energy. Density-constrained and direct time-dependent Hartree-Fock (DC-TDHF) methods. Comparison with experimental data.
doi: 10.1103/PhysRevC.89.034611
2013DE23 Phys.Rev. C 88, 014602 (2013) R.T.deSouza, S.Hudan, V.E.Oberacker, A.S.Umar Confronting measured near- and sub-barrier fusion cross sections for 20O+12C with a microscopic method NUCLEAR REACTIONS 12C(20O, X), E(cm)=6-16 MeV; calculated total fusion cross section, heavy-ion potentials, averaged fusion σ. Density-constrained time-dependent Hartree-Fock (DC-TDHF) microscopic method. Comparison with σ measurements for an experiment at SPIRAL-1, GANIL facility at E(20O)=1-2 MeV/nucleon. Comparison with other theoretical calculations.
doi: 10.1103/PhysRevC.88.014602
2013OB01 Phys.Rev. C 87, 034611 (2013) Microscopic analysis of sub-barrier fusion enhancement in 132Sn+40Ca versus 132Sn+48Ca NUCLEAR REACTIONS 132Sn(40Ca, X), (48Ca, X), E(cm)=106-140 MeV; calculated heavy-ion potential, total fusion σ(E). Microscopic calculations based on density-constrained time-dependent Hartree-Fock theory (DC-TDHF) using Skyrme SLy4 interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.87.034611
2013SI21 Phys.Rev. C 88, 024617 (2013) C.Simenel, R.Keser, A.S.Umar, V.E.Oberacker Microscopic study of 16O+16O fusion NUCLEAR REACTIONS 16O(16O, X), E(cm)=6-40 MeV; calculated fusion σ(E) using three dimensional time-dependent Hartree-Fock (TDHF), and density-constrained time-dependent Hartree Fock (DC-TDHF) calculations. 16O(16O, X), E(cm)=6-13 MeV; calculated fusion σ(E) with no coupling and couplings to first 3- states in one or both nuclei using coupled-channel approach (CCFULL computer code). Discussed role of coupling to low-lying octupole states. Comparison with experimental data.
doi: 10.1103/PhysRevC.88.024617
2012KE03 Phys.Rev. C 85, 044606 (2012) R.Keser, A.S.Umar, V.E.Oberacker Microscopic study of Ca + Ca fusion NUCLEAR REACTIONS 40Ca(40Ca, X), 48Ca(40Ca, X), (48Ca, X), E(cm)=45-65; calculated total fusion σ(E), potential barriers, neutron and proton transfer, and excitation energy as a function of the ion-ion distance, isoscalar deformation parameter, power spectrum of isovector dipole amplitude. Microscopic time-dependent Hartree-Fock theory with density constraint (DC-TDHF). Comparison with experimental data.
doi: 10.1103/PhysRevC.85.044606
2012LO10 Phys.Rev. C 86, 024608 (2012) N.Loebl, A.S.Umar, J.A.Maruhn, P.-G.Reinhard, P.D.Stevenson, V.E.Oberacker Single-particle dissipation in a time-dependent Hartree-Fock approach studied from a phase-space perspective NUCLEAR REACTIONS 40Ca(40Ca, X), E(cm)=160, 200, 240 MeV; calculated β and γ deformation parameter, quadrupole moment, and volume phase-space global observables in momentum and coordinate space using the time-dependent Hartree-Fock (TDHF) theory and the Wigner distribution function in the full six-dimensional phase space. Significance of extra time-odd terms.
doi: 10.1103/PhysRevC.86.024608
2012OB02 Phys.Rev. C 85, 034609 (2012) V.E.Oberacker, A.S.Umar, J.A.Maruhn, P.-G.Reinhard Dynamic microscopic study of pre-equilibrium giant resonance excitation and fusion in the reactions 132Sn + 48Ca and 124Sn + 40Ca NUCLEAR REACTIONS 132Sn(48Ca, X), 124Sn(40Ca, X), E(cm)=130 MeV; calculated time evolution of isoscalar quadrupole moment, deformation parameter and rms charge radius, isovector quadrupole moment, dipole amplitude, neutron leakage, pre-equilibrium dipole radiation spectrum, total fusion cross sections, heavy-ion potential, microscopic mass parameter. Pre-equilibrium Giant dipole resonance (GDR) excitation. Density-constrained time-dependent Hartree-Fock (TDHF) method. Comparison with experimental data.
doi: 10.1103/PhysRevC.85.034609
2012UM01 Phys.Rev. C 85, 017602 (2012) A.S.Umar, V.E.Oberacker, J.A.Maruhn, P.-G.Reinhard Microscopic composition of ion-ion interaction potentials NUCLEAR REACTIONS 16O(16O, X), (24O, X), E(cm)=12 MeV; 40Ca(40Ca, X), E(cm)=55 MeV; 132Sn(48Ca, X), E(cm)=120 MeV; calculated ion-ion interaction potentials for head-on collisions using TDHF approach for the time evolution of the nuclear collision.
doi: 10.1103/PhysRevC.85.017602
2012UM02 Phys.Rev. C 85, 055801 (2012) A.S.Umar, V.E.Oberacker, C.J.Horowitz Microscopic sub-barrier fusion calculations for the neutron star crust NUCLEAR REACTIONS 12C, 16,24,28O(16O, X), (24O, X), E(cm)=2-13 MeV; calculated nuclear density contours, potential barriers, fusion σ(E), astrophysical S factor. Time-dependent Hartree-Fock theory with density-constrained Hartree-Fock calculations. Comparison with Sao Paulo static barrier penetration model and experimental data.
doi: 10.1103/PhysRevC.85.055801
2011RE05 Phys.Rev. C 83, 034312 (2011) P.-G.Reinhard, J.A.Maruhn, A.S.Umar, V.E.Oberacker Localization in light nuclei NUCLEAR STRUCTURE 4He, 8Be, 12,20C, 16O, 20Ne, 24Mg, 28Si; calculated contours of proton localization and total density. Spatial localization of light nuclei within the Hartree-Fock approximation.
doi: 10.1103/PhysRevC.83.034312
2010OB01 Phys.Rev. C 82, 034603 (2010) V.E.Oberacker, A.S.Umar, J.A.Maruhn, P.-G.Reinhard Microscopic study of the 132, 124Sn+96Zr reactions: Dynamic excitation energy, energy-dependent heavy-ion potential, and capture cross section NUCLEAR REACTIONS 96Zr(124Sn, X), (132Sn, X), (134Sn, X), E(cm)=195-260 MeV; calculated mass density contour plots, potential barriers, intrinsic mass quadrupole moment, heavy ion potential barriers, precompound excitation energy, capture and inelastic cross sections using time-dependent Hartree-Fock (TDHF) and density-constrained time-dependent Hartree-Fock methods (DC-TDHF).
doi: 10.1103/PhysRevC.82.034603
2010UM01 Phys.Rev.Lett. 104, 212503 (2010) A.S.Umar, J.A.Maruhn, N.Itagaki, V.E.Oberacker Microscopic Study of the Triple-α Reaction NUCLEAR REACTIONS 8Be(α, X)12C, E(cm)=2 MeV; calculated time evolution, potential energy curves for 4He + 8Be head-n collision, single-particle parities of the neutron states; deduced formation of a metastable linear chain state of three α-like clusters. Time-dependent Hartree-Fock theory.
doi: 10.1103/PhysRevLett.104.212503
2010UM02 Phys.Rev. C 81, 064607 (2010) A.S.Umar, V.E.Oberacker, J.A.Maruhn, P.-G.Reinhard Entrance channel dynamics of hot and cold fusion reactions leading to superheavy elements NUCLEAR REACTIONS 208Pb(70Zn, X), E(cm)=260-350 MeV; 238U(48Ca, X), E(cm)=180-250 MeV; calculated potential barriers, excitation energies, and capture σ using fully microscopic time-dependent Hartree-Fock theory coupled with a density constraint. Comparison with experimental data.
doi: 10.1103/PhysRevC.81.064607
2009UM01 J.Phys.(London) G36, 025101 (2009) Center-of-mass motion and cross-channel coupling in the time-dependent Hartree-Fock theory
doi: 10.1088/0954-3899/36/2/025101
2009UM03 Eur.Phys.J. A 39, 243 (2009) Density-constrained time-dependent Hartree-Fock calculation of 16O + 208Pb fusion cross-sections NUCLEAR REACTIONS 208Pb(16O, X), E(cm)=65-110 MeV; calculated total fusion σ using energy-dependent density-constrained time-dependent Hartree-Fock method. Comparison with data.
doi: 10.1140/epja/i2008-10712-5
2009UM04 Phys.Rev. C 80, 041601 (2009) A.S.Umar, V.E.Oberacker, J.A.Maruhn, P.-G.Reinhard Microscopic calculation of pre-compound excitation energies for heavy-ion collisions NUCLEAR REACTIONS 16O(16O, X), E(cm)=11, 20, 34, 50 MeV; 34Ne(16O, X), E(cm)=11, 15, 30 MeV; 40Ca(40Ca, X), E(cm)=55, 60, 80, 100 MeV;calculated excitation energies, internuclear potentials, and ion-ion potentials for head-on collisions using time-dependent Hartree-Fock (TDHF) theory.
doi: 10.1103/PhysRevC.80.041601
2008UM03 Phys.Rev. C 77, 064605 (2008) 64Ni+64Ni fusion reaction calculated with the density-constrained time-dependent Hartree-Fock formalism NUCLEAR REACTIONS 64Ni(64Ni, X), E(cm)=86-110 MeV; calculated orientation probabilities, potential barriers, density contours, σ. Time-dependent Hartree-Fock model.
doi: 10.1103/PhysRevC.77.064605
2008UM04 Eur.Phys.J. A 37, 245 (2008) A.S.Umar, V.E.Oberacker, J.A.Maruhn Neutron transfer dynamics and doorway to fusion in time-dependent Hartree-Fock theory NUCLEAR REACTIONS 24O(16O, X), E(cm)=7, 8, 9 MeV; 96Zr(40Ca, X), E(cm)=91, 97 MeV; calculated neutron and single-particle probability densities, potential barrier using time-dependent Hartree-Fock model.
doi: 10.1140/epja/i2008-10614-6
2007UM02 Phys.Rev. C 76, 014614 (2007) 64Ni+132Sn fusion within the density-constrained time-dependent Hartree-Fock formalism NUCLEAR REACTIONS 132Sn(64Ni, f)E(cm)<200 MeV; calculated fusion cross sections using the density constrained time-dependent Hartree-Fock formalism.
doi: 10.1103/PhysRevC.76.014614
2007UM03 Phys.Rev. C 76, 024316 (2007) Compressibility and equation of state of finite nuclei
doi: 10.1103/PhysRevC.76.024316
2006UM02 Phys.Rev. C 73, 054607 (2006) Three-dimensional unrestricted time-dependent Hartree-Fock fusion calculations using the full Skyrme interaction NUCLEAR REACTIONS 16O(16O, X), E(cm)=34 MeV; calculated fusion σ. Three-dimensional unrestricted time-dependent Hartree-Fock approach, Skyrme interaction.
doi: 10.1103/PhysRevC.73.054607
2006UM03 Phys.Rev. C 74, 021601 (2006) Heavy-ion interaction potential deduced from density-constrained time-dependent Hartree-Fock calculation NUCLEAR REACTIONS 16O(16O, X), E(cm)=34 MeV; 22Ne(16O, X), E(cm)=50 MeV; calculated internuclear potentials. Density-constrained time-dependent Hartree-Fock calculation.
doi: 10.1103/PhysRevC.74.021601
2006UM04 Phys.Rev. C 74, 024606 (2006) Time dependent Hartree-Fock fusion calculations for spherical, deformed systems NUCLEAR REACTIONS 162Dy(64Ni, 64Ni'), E(cm)=200, 265 MeV; calculated Coulomb excitation probabilities for ground-state rotational band, dynamic alignment features. 22Ne(16O, X), E(cm)=95 MeV; calculated dynamic alignment due to Coulomb excitation, fusion σ vs orientation. Time dependent Hartree-Fock approach.
doi: 10.1103/PhysRevC.74.024606
2006UM06 Phys.Rev.C 74, 061601 (2006) Dynamical deformation effects in subbarrier fusion of 64Ni+132Sn NUCLEAR REACTIONS 132Sn(64Ni, X), E(cm)=140-180 MeV; calculated internuclear potential, fusion σ, dynamical deformation effects.
doi: 10.1103/PhysRevC.74.061601
2005BL12 Phys.Rev. C 71, 054321 (2005) A.Blazkiewicz, V.E.Oberacker, A.S.Umar, M.Stoitsov Coordinate space Hartree-Fock-Bogoliubov calculations for the zirconium isotope chain up to the two-neutron drip line NUCLEAR STRUCTURE 102,104,106,108,110,112,114,116,118,120,122,124Zr; calculated binding energies, two-neutron separation energies, quadrupole moments, β2, radii, pairing energies. Hartree-Fock-Bogoliubov approach.
doi: 10.1103/PhysRevC.71.054321
2005BL32 Eur.Phys.J. A 25, Supplement 1, 543 (2005) A.Blazkiewicz, V.E.Oberacker, A.S.Umar 2-D lattice HFB calculations for neutron-rich zirconium isotopes NUCLEAR STRUCTURE 102,104,106,108,110,112,114,116,118,120,122Zr; calculated two-neutron separation energies, quadrupole moments, radii. Hartree-Fock-Bogoliubov approach.
doi: 10.1140/epjad/i2005-06-100-7
2005UM01 Phys.Rev. C 71, 034314 (2005) Time-dependent response calculations of nuclear resonances NUCLEAR STRUCTURE 16O, 32S, 40Ca; calculated giant resonance response functions, time-dependent features.
doi: 10.1103/PhysRevC.71.034314
2005UM02 Eur.Phys.J. A 25, Supplement 1, 553 (2005) TDHF studies with modern Skyrme forces NUCLEAR REACTIONS 22Ne(16O, X), E=2.5 MeV/nucleon; calculate density distributions vs time; deduced orientation effects on fusion σ. Three-dimensional time-dependent Hartree-Fock approach, Skyrme forces.
doi: 10.1140/epjad/i2005-06-087-y
2003OB06 Phys.Rev. C 68, 064302 (2003) V.E.Oberacker, A.S.Umar, E.Teran, A.Blazkiewicz Hartree-Fock-Bogoliubov calculations in coordinate space: Neutron-rich sulfur, zirconium, cerium, and samarium isotopes NUCLEAR STRUCTURE 32,34,36,38,40,42,44,46,48,50,52S; calculated two-neutron separation energies, quadrupole moments, radii. 102,104Zr, 152Ce, 156Nd, 160Sm; calculated deformation parameters, radii. 158Sm; calculated ground-state binding energy, pairing energies, radii, density distributions. Hartree-Fock-Bogoliubov approach.
doi: 10.1103/PhysRevC.68.064302
2003TE03 Phys.Rev. C 67, 064314 (2003) E.Teran, V.E.Oberacker, A.S.Umar Axially symmetric Hartree-Fock-Bogoliubov calculations for nuclei near the drip lines NUCLEAR STRUCTURE 22O, 102Zr, 150Sn; calculated binding energies, pair gap energies, radii. Hartree-Fock-Bogoliubov approach, continuum coupling.
doi: 10.1103/PhysRevC.67.064314
2002TE18 Acta Phys.Hung.N.S. 16, 437 (2002) E.Teran, V.E.Oberacker, A.S.Umar Theoretical Description of Hartree-Fock Calculations under Axial Symmetry: First Results on Tin Isotopes NUCLEAR STRUCTURE 120,150Sn; calculated binding energies, pair gaps, deformation. Comparison with data.
doi: 10.1556/APH.16.2002.1-4.46
2000WA07 Phys.Rev. C61, 044308 (2000) J.C.Wang, G.Canchel, P.Dendooven, J.H.Hamilton, S.Hankonen, J.Huikari, J.K.Hwang, A.Jokinen, V.S.Kolhinen, G.Lhersonneau, A.Nieminen, V.E.Oberacker, K.Perajarvi, A.V.Ramayya, J.Aysto Low-Spin Structure of 110Ru Studied by β Decay of 110Tc RADIOACTIVITY 110Tc(β-) [from 238U(p, F)]; measured Eγ, Iγ, γγ-, βγ-coin; deduced β-branching, logft. 110Ru deduced levels, J, π, B(E2). Level systematics in Ru isotopes discussed. Comparisons with model predictions.
doi: 10.1103/PhysRevC.61.044308
1999BU32 J.Phys.(London) G25, 2253 (1999) K.Butler-Moore, R.Aryaeinejad, X.Q.Zhang, B.R.S.Babu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, V.E.Oberacker, S.J.Zhu, J.Kormicki, L.K.Peker, J.D.Cole, Y.X.Dardenne, W.C.Ma, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, M.F.Mohar, J.O.Rasmussen, R.W.Lougheed, K.J.Moody, M.A.Stoyer, J.F.Wild, S.G.Prussin, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, J.Kliman, M.Morhac High-Spin States in Neutron-Rich Even-Even Pd Isotopes RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 112,114,116Pd deduced high-spin levels, J, π, configurations. Gammasphere array. IBA calculations, level systematics in Pd isotopes discussed.
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1999OB03 Acta Phys.Hung.N.S. 10, 221 (1999) Prompt Muon-Induced Fission: A probe for nuclear energy dissipation NUCLEAR REACTIONS 237Np(μ-, F), E at rest; calculated fission fragments mass asymmetry, muon attachment probability; deduced sensitivity to nuclear energy dissipation. Time-dependent Dirac equation. Comparison with data.
1996TR05 Nucl.Phys. A601, 56 (1996) D.Troltenier, J.P.Draayer, B.R.S.Babu, J.H.Hamilton, A.V.Ramayya, V.E.Oberacker The 108,110,112Ru Isotopes in the Generalized Collective Model NUCLEAR STRUCTURE 108,110,112Ru; calculated potential energy surfaces, levels, B(λ). Generalized collective model.
doi: 10.1016/0375-9474(96)00018-8
1995LU10 Phys.Rev. C52, 1348 (1995) Q.H.Lu, K.Butler-Moore, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, V.E.Oberacker, W.C.Ma, B.R.S.Babu, J.K.Deng, J.Kormicki, J.D.Cole, R.Aryaeinejad, Y.X.Dardenne, M.Drigert, L.K.Peker, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, I.Y.Lee, M.F.Mohar, J.M.Nitschke, N.R.Johnson, F.K.McGowan, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.B.Gupta Structure of 108,110,112Ru: Identical bands in 108,110Ru RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-, γγγ-, (X-ray)γ-coin. 108,110,112Ru deduced levels, J, π, intraband B(E2) ratios. Rotation-vibration, rigid triaxial rotor calculation.
doi: 10.1103/PhysRevC.52.1348
1995WE16 Nucl.Instrum.Methods Phys.Res. B99, 293 (1995) J.C.Wells, V.E.Oberacker, M.R.Strayer, A.S.Umar Lattice Calculation for Lepton Capture from Vacuum-Pair Production in Relativistic Heavy-Ion Collisions NUCLEAR REACTIONS 197Au(197Au, X), E=2 GeV/nucleon; calculated muon-pair production associated K-shell capture probabilities, relativistic collisions. Lattice collocation techniques, time-dependent Dirac equation.
doi: 10.1016/0168-583X(94)00652-0
1993OB02 Phys.Rev. C48, 1297 (1993) V.E.Oberacker, A.S.Umar, J.C.Wells, C.Bottcher, M.R.Strayer, J.A.Maruhn Muon-Induced Fission: A probe for nuclear dissipation and fission dynamics NUCLEAR STRUCTURE 238U; calculated mesonic atom levels, Coulomb interaction potential; deduced muon induced fission features. ATOMIC PHYSICS, Mesic-Atoms 238U; calculated mesonic atom levels, Coulomb interaction potential; deduced muon induced fission features.
doi: 10.1103/PhysRevC.48.1297
1992OB03 Phys.Lett. 293B, 270 (1992) V.E.Oberacker, A.S.Umar, J.C.Wells, M.R.Strayer, C.Bottcher Study of Nuclear Dissipation via Muon-Induced Fission. A Relativistic Lattice Calculation NUCLEAR REACTIONS 238U(μ-, F), E at rest; calculated muon-nucleus Coulomb interaction vs time during fission, muon to light fission fragment attachment probability vs dissipated energy. Relativistic lattice calculation.
doi: 10.1016/0370-2693(92)90882-5
1989KA03 J.Phys.(London) G15, 333 (1989) Microscopic Theory of Heavy-Ion Interaction Potentials NUCLEAR REACTIONS 40Ca(40Ca, 40Ca), 90Zr(90Zr, 90Zr), 238U(238U, 238U), E not given; calculated interaction potentials.
doi: 10.1088/0954-3899/15/3/011
1988WI11 Z.Phys. A330, 87 (1988) G.Wirth, W.Bruchle, F.Wo, K.Summerer, F.Funke, J.V.Kratz, N.Trautmann, V.E.Oberacker Fission in 238U + 238U Collisions Below the Coulomb Barrier NUCLEAR REACTIONS 238U(238U, F), E=5.4-6.2 MeV/nucleon; measured fission σ(E); 239U(238U, X), E=5.05-6.07 MeV/nucleon; calculated one-nucleon transfer σ(θ); deduced reaction mechanism.
1986KA16 Phys.Lett. 172B, 292 (1986) M.W.Katoot, V.E.Oberacker, W.T.Pinkston Microscopic Theory of Heavy-Ion Potentials NUCLEAR STRUCTURE 16O, 28Si, 40Ca, 64Ni, 74Ge, 116Ba, 236U; calculated binding energy. Many-body theory, effective Skyrme nucleon interaction. NUCLEAR REACTIONS 28Si(28Si, 28Si), 40Ca(40Ca, 40Ca), 90Zr(90Zr, 90Zr), E not given; calculated heavy-ion potential parameters vs separation distance. Many-body theory, effective Skyrme nucleon-nucleon interaction.
doi: 10.1016/0370-2693(86)90254-6
1985RU06 Phys.Lett. 158B, 201 (1985) D.P.Russell, W.T.Pinkston, V.E.Oberacker Pockets in Heavy-Ion Potentials and Nucleon Transfer NUCLEAR REACTIONS 238U(238U, 238U), (238U, X), E=673 MeV; calculated elastic, single nucleon transfer σ(θ). Schematic model, potential pockets.
doi: 10.1016/0370-2693(85)90954-2
1983RH01 Phys.Rev.Lett. 50, 1435 (1983) M.J.Rhoades-Brown, V.E.Oberacker Strong Enhancement of Subbarrier Fusion due to Negative Hexadecapole Deformation NUCLEAR REACTIONS, ICPND 184W(16O, X), E(cm)=57-67 MeV; calculated fusion σ(E); deduced hexadecapole deformation effects. Modified barrier penetration model.
doi: 10.1103/PhysRevLett.50.1435
1983RH02 Z.Phys. A310, 287 (1983) M.J.Rhoades-Brown, V.E.Oberacker, M.Seiwert, W.Greiner Potential Pockets in the 238U + 238U System and Their Possible Consequences NUCLEAR REACTIONS 238U(238U, 238U), E=5.7-6 MeV/nucleon; calculated ion-ion interaction potential separation, shape, orientation dependence. Effective interactions, deformed matter densities, quadrupole, hexadecapole deformations.
doi: 10.1007/BF01419514
1980MA17 Phys.Rev.Lett. 44, 1576 (1980) J.A.Maruhn, V.E.Oberacker, V.Maruhn-Rezwani Muon-Induced Fission as a Probe for Fission Dynamics NUCLEAR REACTIONS 242Pu(μ-, F), E at rest; calculated heavy fragment muon capture probability; deduced muonic final state dependence on fission dynamics. Time dependent Schrodinger equation.
doi: 10.1103/PhysRevLett.44.1576
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