NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = T.Ichikawa Found 53 matches. 2023YA22 Phys.Rev. C 108, L011304 (2023) Y.Yamaguchi, W.Horiuchi, T.Ichikawa, N.Itagaki Dineutron-dineutron correlation in 8He NUCLEAR STRUCTURE 8He; calculated potential energy surface of Jπ=0+ for the α+2n+2n configuration, energy convergence of lowest Jπ=0+ state, point-matter one body density distribution, neutron and proton one body density distributions of 8He, rms point-proton and matter radii, ground state energy, squared overlap between the ground state of 8He and 4He+2n+2n cluster configuration, quadrupole deformation parameter of 4He+2n+2n cluster configuration. Microscopic 4He+4n model, with antisymmetrized wave function and basis states constructed with different neutron configurations and superposed using the generator coordinate method (GCM). Comparison to available experimental data. NUCLEAR REACTIONS 8He(p, p), E=680 MeV; calculated proton-nucleus elastic σ(θ). C(8He, X), E=790/MeV nucleon; calculated total σ. Calculation based on Glauber model with 4He+4n wave function. Comparison with available experimental data.
doi: 10.1103/PhysRevC.108.L011304
2022IC01 Phys.Rev. C 105, 024314 (2022) Optimization of basis functions for multiconfiguration mixing using the replica exchange Monte Carlo method and its application to 12C NUCLEAR STRUCTURE 12C; calculated levels, J, π, potential-energy surface on the β-γ plane, temperature dependence of the calculated energies forthe 0+ excited states, rms radii. Monte Carlo method to sample Slater determinants. Comparison to experimental data.
doi: 10.1103/PhysRevC.105.024314
2020AR01 Phys.Scr. 95, 24003 (2020) K.-i.Arita, T.Ichikawa, K.Matsuyanagi Semiclassical origin of asymmetric nuclear fission: nascent-fragment shell effect in periodic-orbit theory NUCLEAR REACTIONS 236U(n, F), E not given; analyzed available data; deduced shell structures in fission processes with the 3QS cavity model.
doi: 10.1088/1402-4896/ab42a8
2019IC01 Phys.Lett. B 789, 679 (2019) The microscopic mechanism behind the fission-barrier asymmetry (II): The rare-earth region 50 < Z < 82 and 82 < N < 126 NUCLEAR STRUCTURE 132Sn, 240Pu, 186Pt, 236U, 180Hg; calculated potential energy surfaces, single-neutron energy levels; deduced a new type of asymmetric fission but of analogous origin as the asymmetry of actinide fission, mechanism of the saddle asymmetry in the sub-Pb region.
doi: 10.1016/j.physletb.2018.12.034
2018AR09 Phys.Rev. C 98, 064311 (2018) K.Arita, T.Ichikawa, K.Matsuyanagi Nascent fragment shell effects on the nuclear fission processes in semiclassical periodic orbit theory
doi: 10.1103/PhysRevC.98.064311
2017HA16 Phys.Rev. C 95, 054620 (2017) New and efficient method for solving the eigenvalue problem for the two-center shell model with finite-depth potentials NUCLEAR STRUCTURE 16O; calculated neutron single-particle energies for 16O+16O system as function of separation distance between the two nuclei, single-particle energy for the second positive-parity state with 1/2+ as function of the number of one-center and two-center harmonic oscillator bases states. Proposed method to solve the eigenvalue problem for a single-particle motion in a two-center potential, combining separable representation for single-particle potential with matrix diagonalization.
doi: 10.1103/PhysRevC.95.054620
2017MA34 Prog.Theor.Exp.Phys. 2017, 063D01 (2017) H.Matsuno, N.Itagaki, T.Ichikawa, Y.Yoshida, Y.Kanada-Enyo Effect of 12C + α clustering on the E0 transition in 16O NUCLEAR STRUCTURE 16O; analyzed available data; deduced the mixing effect of 3α and α breaking components in the 12C cluster on the E0 transitions.
doi: 10.1093/ptep/ptx065
2016MO08 At.Data Nucl.Data Tables 109-110, 1 (2016) P.Moller, A.J.Sierk, T.Ichikawa, H.Sagawa Nuclear ground-state masses and deformations: FRDM(2012) NUCLEAR STRUCTURE A=16-339; calculated ground-state deformation parameters, β-decay Q-values, T1/2 and delayed neutron emission probabilities, neutron- and proton-separation energies, J, α-decay Q-value and T1/2, atomic masses. Comparison with available data.
doi: 10.1016/j.adt.2015.10.002
2016SH09 Phys.Lett. B 755, 332 (2016) A.Shrivastava, K.Mahata, S.K.Pandit, V.Nanal, T.Ichikawa, K.Hagino, A.Navin, C.S.Palshetkar, V.V.Parkar, K.Ramachandran, P.C.Rout, A.Kumar, A.Chatterjee, S.Kailas Evolution of fusion hindrance for asymmetric systems at deep sub-barrier energies NUCLEAR REACTIONS 198Pt(7Li, X), E=20-35 MeV;198Pt(12C, X), E=50-64 MeV; measured reaction products, Eγ, Iγ, X-rays; deduced fusion σ. Comparison with coupled-channels calculations using the code CCFULL.
doi: 10.1016/j.physletb.2016.02.029
2015IC02 Phys.Rev. C 92, 021602 (2015) Universal damping mechanism of quantum vibrations in deep sub-barrier fusion reactions NUCLEAR REACTIONS 208Pb(16O, X), E near the touching point; calculated Nilsson diagram as a function of neutron or proton radius, B(E3), energy-weighted sums of B(E3), density distributions of the p1/2 and d5/2 states. 16O, 208Pb; deduced damping of quantum octupole vibrations. Random-phase approximation method applied to the heavy-mass asymmetric dinuclear system.
doi: 10.1103/PhysRevC.92.021602
2015IC03 Phys.Rev. C 92, 064604 (2015) Systematic investigations of deep sub-barrier fusion reactions using an adiabatic approach NUCLEAR REACTIONS 64Ni(64Ni, X), E(cm)=83-110 MeV; 58Ni(58Ni, X), E(cm)=90-110 MeV; 58Ni(54Fe, X), E(cm)=83-110 MeV; 40Ca(40Ca, X), E(cm)=47-66 MeV; 48Ca(48Ca, X), E(cm)=44-62 MeV; 30Si(24Mg, X), E(cm)=18-30 MeV; 96Zr(48Ca, X), E(cm)=84-113 MeV; 208Pb(16O, X), E(cm)=63-85 MeV; calculated fusion σ(E), astrophysical S(E) factor, logarithmic derivative of fusion σ(E), barrier distributions as function of incident energy, average angular momentum of compound nucleus versus incident energies, partial fusion cross section versus angular momentum, radius and diffuseness parameters at extremely low incident beam energies. Extension of the standard coupled-channel (CC) model by introducing a damping factor in the coupling matrix elements, and using Yukawa-plus-exponential (YPE) heavy ion-ion potential. Comparison to experimental data.
doi: 10.1103/PhysRevC.92.064604
2015IW01 Phys.Rev. C 92, 011303 (2015) Y.Iwata, T.Ichikawa, N.Itagaki, J.A.Maruhn, T.Otsuka Examination of the stability of a rod-shaped structure in 24Mg NUCLEAR STRUCTURE 24Mg; calculated density profiles of the initial states of six-α clusters, contours of final states of compact shape, rod shape, and fragmentation, comparison of energies with and without the spin-orbit interaction as a function of rotational frequency; deduced rod-shaped structure of 24Mg with large angular momentum as a metastable stationary state. Cranked Hartree-Fock calculation with several different Skyrme-type interactions.
doi: 10.1103/PhysRevC.92.011303
2015MO03 Phys.Rev. C 91, 024310 (2015) P.Moller, A.J.Sierk, T.Ichikawa, A.Iwamoto, M.Mumpower Fission barriers at the end of the chart of the nuclides NUCLEAR STRUCTURE Z=60-130, N=90-230, A=171-330; calculated fission-barrier heights, saddle-point energies for 5239 nuclei between the proton and neutron drip lines. 171Nd; calculated shape at saddle point. 298Hs; calculated potential energy surface contour in (ϵ2, γ) plane. Macroscopic-microscopic finite-range liquid-drop model with a 2002 set of macroscopic-model parameters.
doi: 10.1103/PhysRevC.91.024310
2015MO27 Eur.Phys.J. A 51, 173 (2015) A method to calculate fission-fragment yields Y(Z, N) versus proton and neutron number in the Brownian shape-motion model - Application to calculations of U and Pu charge yields
doi: 10.1140/epja/i2015-15173-1
2014IC01 Phys.Rev. C 89, 011305 (2014) T.Ichikawa, K.Matsuyanagi, J.A.Maruhn, N.Itagaki Pure collective precession motion of a high-spin torus isomer NUCLEAR STRUCTURE 40Ca; calculated time-evolution of the density distribution, total angular momentum, tilting angle, and rotational angle of precession motion of the high-K torus isomer. Three-dimensional time-dependent Hartree-Fock (TDHF) method, and random-phase approximation (RPA) method for high-spin states.
doi: 10.1103/PhysRevC.89.011305
2014IC02 Phys.Rev. C 90, 034314 (2014) T.Ichikawa, K.Matsuyanagi, J.A.Maruhn, N.Itagaki High-spin torus isomers and their precession motions NUCLEAR STRUCTURE 36Ar, 40Ca, 44Ti, 48Cr, 52Fe; calculated density distributions, moments of inertia, single-particle energies, time evolution of the precession motion, Nilsson diagrams for high-spin torus isomers. Cranked three-dimensional Hartree-Fock (TDHF) method with Skyrme interactions and radially displaced harmonic-oscillator (RDHO) model.
doi: 10.1103/PhysRevC.90.034314
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
2013AS02 Phys.Rev. C 87, 014332 (2013) M.Asai, K.Tsukada, M.Sakama, H.Haba, T.Ichikawa, Y.Ishii, A.Toyoshima, T.Ishii, I.Nishinaka, Y.Nagame, Y.Kasamatsu, M.Shibata, Y.Kojima, H.Hayashi Ground-state configuration of the N=157 nucleus 259No RADIOACTIVITY 259No(α)[from 248Cm(18O, 3nα), E=94 MeV]; measured Eα, Iα, Eγ, I(K-x rays), αγ-coin, T1/2 at JAEA facility. 255Fm; deduced levels, J, π, multipolarity, configuration. 259No; deduced ground-state configuration. 255,257,259,261,263,265No; calculated energies of neutron single-particle orbitals, and β2, β4, β6 deformation parameters using macroscopic-microscopic model based on FRLDM and Strutinsky shell correction method. Observed α lines from decays of 211,213,214Po, 211At, 250,254,255,256Fm, 253Es, 257No, 261Rf formed in competing reaction channels.
doi: 10.1103/PhysRevC.87.014332
2013IC01 Phys.Rev. C 87, 054326 (2013) T.Ichikawa, P.Moller, A.J.Sierk Character and prevalence of third minima in actinide fission barriers NUCLEAR STRUCTURE 228,230,232,234,236Ra, 228,230,232,234,236,238Th, 228,230,232,234,236U, 234,236Pu; calculated depth and height of triple-humped fission barriers, third (hyperdeformed) minima. Folded-Yukawa single particle potential in a macroscopic-microscopic model.
doi: 10.1103/PhysRevC.87.054326
2013IC03 Phys.Rev. C 88, 011602 (2013) Damping of quantum vibrations revealed in deep sub-barrier fusion NUCLEAR REACTIONS 16O(16O, X), E not given; 40Ca(40Ca, X), E(cm)=47-66 MeV; calculated E3 transition strengths, damping factor for E3 transitions, transition densities and currents, fusion σ(E). Discussed damping of quantum vibrations in deep sub-barrier fusion reactions. Random-phase-approximation method for two-body system, and Coupled-channel (CC) model. Comparison with experimental data.
doi: 10.1103/PhysRevC.88.011602
2013KL03 J.Phys.:Conf.Ser. 445, 012036 (2013) M.A.Klatt, T.Ichikawa, K.Iida, N.Itagaki, J.A.Maruhn, K.Matsuyanagi, K.Mecke, S.Ohkubo, P.-G.Reinhard, B.Schuetrumpf Exotic cluster structures in the mean-field theory NUCLEAR STRUCTURE 16O, 40Ca; calculated deformation, exotic shapes using Skyrme Hartree-Fock, TDHF.
doi: 10.1088/1742-6596/445/1/012036
2013UH01 Nucl.Phys. A913, 127 (2013) H.Uhrenholt, S.Aberg, A.Dobrowolski, Th.Dossing, T.Ichikawa, P.Moller Combinatorial nuclear level-density model NUCLEAR STRUCTURE 60Co, 68Zn, 76,78,80,82,84,86Sr, 94Nb, 97,98Mo, 107,109,111,112,113,114,115,117Cd, 127Te, 148Pm, 148,149Sm, 155Eu, 161,162Dy, 166,167Er, 169,170,171,172,173,174,175,177Yb, 194Ir, 237U, 239Pu; calculated level density, angular momentum distribution, parity ratio, pairing gap. 90Zr, 90Nb; calculated J, π level density. A=20-255; calculated level density at neutron separation energy, vibrational enhancement. Combinatorial (microcanonical) model with folded Yukawa, pairing, rotational and vibrational states. Compared with available data.
doi: 10.1016/j.nuclphysa.2013.06.002
2012IC01 Phys.Rev. C 86, 024610 (2012) T.Ichikawa, A.Iwamoto, P.Moller, A.J.Sierk Contrasting fission potential-energy structure of actinides and mercury isotopes NUCLEAR STRUCTURE 178,180,182,184,186,188,190,192,194,196,198,200Hg, 236U; calculated potential-energy surfaces as function of quadrupole moment, saddle points, barrier heights and the ridge heights for fission. Asymmetric fission. Effect of shell structure of fission fragments. Macroscopic-microscopic approach, finite-range liquid-drop model (FRLDM).
doi: 10.1103/PhysRevC.86.024610
2012IC02 Phys.Rev. C 86, 031303 (2012) T.Ichikawa, N.Itagaki, Y.Kanada-En'yo, Tz.Kokalova, W.von Oertzen Search for three-α states around an 16O core in 28Si NUCLEAR STRUCTURE 28Si; calculated 16O+α states including 24Mg+α, 16O12C basis wave functions, isoscalar monopole transition strengths, root-mean-square radii, density contours using Brink's α cluster model and the multiconfiguration mixing method. Hoyle-like 3α states.
doi: 10.1103/PhysRevC.86.031303
2012IC03 Prog.Theor.Phys.(Kyoto), Suppl. 196, 269 (2012) T.Ichikawa, K.Hagino, A.Iwamoto Smooth Transition from Sudden to Adiabatic States in Deep-Subbarrier Fusion Reactions NUCLEAR REACTIONS 64Ni(64Ni, X), 208Pb(16O, X), E(cm)<90 MeV; calculated fusion σ, average angular momenta of the compound nuclei; deduced adiabatic potential. Coupled-channel model calculations.
doi: 10.1143/PTPS.196.269
2012IC04 Phys.Rev.Lett. 109, 232503 (2012) T.Ichikawa, J.A.Maruhn, N.Itagaki, K.Matsuyanagi, P.-G.Reinhard, S.Ohkubo Existence of an Exotic Torus Configuration in High-Spin Excited States of 40Ca NUCLEAR STRUCTURE 40Ca; calculated high-spin states, J, π, neutron single-particle energies; deduced stable state with thorus configuration. Skyrme Hartree-Fock method, comparison with available data.
doi: 10.1103/PhysRevLett.109.232503
2012MO02 At.Data Nucl.Data Tables 98, 149 (2012) P.Moller, A.J.Sierk, R.Bengtsson, H.Sagawa, T.Ichikawa Nuclear shape isomers NUCLEAR STRUCTURE A=31-120; calculated potential-energy surfaces, deformations and all energy minima, shape isomers near 208Pb.
doi: 10.1016/j.adt.2010.09.002
2011AS03 Phys.Rev. C 83, 014315 (2011) M.Asai, K.Tsukada, H.Haba, Y.Ishii, T.Ichikawa, A.Toyoshima, T.Ishii, Y.Nagame, I.Nishinaka, Y.Kojima, K.Sueki Neutron one-quasiparticle states in 251Fm151 populated via the α decay of 255No RADIOACTIVITY 255No(α)[from 248Cm(12C, 5n), E=77 MeV; measured Eα, Iα, Eγ, Iγ, αγ-coin, T1/2, level half-lives from delayed spectra. 251Fm; deduced levels, J, π, α hindrance factors, conversion coefficients, multipolarities, B(E2), configurations. Comparison of α hindrance factors with those from α decay of 251Cf and 253Fm. NUCLEAR STRUCTURE 245Pu, 247Cm, 249Cf, 251Fm, 253No, 255Rf; calculated one quasiparticle neutron states in N=151 nuclei using macroscopic-microscopic approach with finite-range liquid drop model involving β2, β4, β6 and β8 deformation parameters.
doi: 10.1103/PhysRevC.83.014315
2011IC02 Phys.Rev. C 83, 054319 (2011) T.Ichikawa, Y.Kanada-Enyo, P.Moller Cluster formations in deformed states for 28Si and 32S NUCLEAR STRUCTURE 28Si, 32S; calculated potential-energy curves versus quadrupole moment, rotational levels for normal-deformed (ND) and superdeformed (SD) states, density distributions of neutron single-particle wave functions, coulomb barrier heights. Cluster formation and structures similar to 16O+12C, 24Mg+α, 16O+16O and 28Si+α reaction channels. Relation between the one-body deformed minima and the two-body molecular-resonance states. Macroscopic-microscopic model. Comparison with experimental data.
doi: 10.1103/PhysRevC.83.054319
2011IC03 Phys.Rev. C 83, 061301 (2011) T.Ichikawa, N.Itagaki, T.Kawabata, Tz.Kokalova, W.von Oertzen Gas-like state of α clusters around a 16O core in 24Mg NUCLEAR STRUCTURE 24Mg; calculated energies and energy convergence of 0+ states with basis states for 16O+α+α configurations, strength distribution of the isoscalar E0 transitions from the ground state, α-cluster states around 16O. Microscopic α-cluster model, and overlap with Tohsaki-Horiuchi-Schuck-Ropke (THSR) wave functions.
doi: 10.1103/PhysRevC.83.061301
2011IC04 Phys.Rev.Lett. 107, 112501 (2011) T.Ichikawa, J.A.Maruhn, N.Itagaki, S.Ohkubo Linear Chain Structure of Four-α Clusters in 16O NUCLEAR STRUCTURE 16O; calculated surface and total nucleon density, coefficient of the rotational energy, angular momentum; deduced existence of stable exotic nuclei with large angular momentum of inertia. Skyrme cranked Hartree-Fock method.
doi: 10.1103/PhysRevLett.107.112501
2011MU16 Phys.Rev. C 84, 034305 (2011) K.Muta, T.Furumoto, T.Ichikawa, N.Itagaki Three-triton states in 9Li NUCLEAR STRUCTURE 9Li; calculated rms radii and energy convergence of 3/2- 3/2+, 1/2- and 1/2+ states, E0 transition strength; deduced α+t+n+n, t+t+t configurations in excited states of 9Li.
doi: 10.1103/PhysRevC.84.034305
2011SA41 J.Phys.Soc.Jpn. 80, 094201 (2011) N.Sato, H.Haba, T.Ichikawa, D.Kaji, Y.Kudou, K.Morimoto, K.Morita, K.Ozeki, T.Sumita, A.Yoneda, E.Ideguchi, H.Koura, A.Ozawa, T.Shinozuka, T.Yamaguchi, A.Yoshida Production and Decay Properties of 264Hs and 265Hs NUCLEAR REACTIONS 208Pb(58Fe, 2n), 207,208Pb(58Fe, n), E(cm)=200-227 MeV; measured reaction products; deduced σ. RADIOACTIVITY 264,265Hs(α), (SF) [from 208Pb(58Fe, 2n), 207,208Pb(58Fe, n), E(cm)=200-227 MeV]; measured Eα, Iα; deduced α-particle energies, α and spontaneous fission branches, Q-values, T1/2.
doi: 10.1143/JPSJ.80.094201
2010AN13 Phys.Rev.Lett. 105, 252502 (2010) A.N.Andreyev, J.Elseviers, M.Huyse, P.Van Duppen, S.Antalic, A.Barzakh, N.Bree, T.E.Cocolios, V.F.Comas, J.Diriken, D.Fedorov, V.Fedosseev, S.Franchoo, J.A.Heredia, O.Ivanov, U.Koster, B.A.Marsh, P.Van den Bergh, J.Van De Walle, K.Nishio, R.D.Page, N.Patronis, M.Seliverstov, I.Tsekhanovich, M.Venhart, S.Vermote, M.Veselsky, C.Wagemans, T.Ichikawa, A.Iwamoto, P.Moller, A.J.Sierk New Type of Asymmetric Fission in Proton-Rich Nuclei RADIOACTIVITY 180Tl(α), (β+), (EC) [from U(p, X), E=1.4 GeV]; measured fission fragments, Eα, Iα, X-rays. 180Hg; deduced asymetric fission fragment distribution, branching ratio for β-delayed fission.
doi: 10.1103/PhysRevLett.105.252502
2009AB18 Int.J.Mod.Phys. E18, 926 (2009) S.Aberg, H.Uhrenholt, T.Ichikawa, P.Moller Chaos and structure of level densities NUCLEAR STRUCTURE 79Cu, 162Dy, 172Yb; calculated level density.
doi: 10.1142/S0218301309013063
2009IC01 Phys.Rev. C 79, 014305 (2009) T.Ichikawa, A.Iwamoto, P.Moller Origin of the narrow, single peak in the fission-fragment mass distribution for 258Fm RADIOACTIVITY 258Fm(SF); calculated potential energy, fragment charge distributions, inertial mass, mass-yield curves. Macroscopic-microscopic model.
doi: 10.1103/PhysRevC.79.014305
2009IC04 Phys.Rev.Lett. 103, 202701 (2009) T.Ichikawa, K.Hagino, A.Iwamoto Signature of Smooth Transition from Sudden to Adiabatic States in Heavy-Ion Fusion Reactions at Deep Sub-Barrier Energies NUCLEAR REACTIONS 208Pb(16O, X), 64Ni(64Ni, X), 58Ni(58Ni, X), E(cm)=60-105 MeV; analyzed fusion σ, S-factors, adiabatic potentials; deduced extension of the standard coupled-channels framework. Comparison with experiment.
doi: 10.1103/PhysRevLett.103.202701
2009MO12 J.Phys.Soc.Jpn. 78, 064201 (2009) K.Morita, K.Morimoto, D.Kaji, H.Haba, K.Ozeki, Y.Kudou, N.Sato, T.Sumita, A.Yoneda, T.Ichikawa, Y.Fujimori, S.Goto, E.Ideguchi, Y.Kasamatsu, K.Katori, Y.Komori, H.Koura, H.Kudo, K.Ooe, A.Ozawa, F.Tokanai, K.Tsukada, T.Yamaguchi, A.Yoshida Decay Properties of 266Bh and 262Db Produced in the 248Cm + 23Na Reaction NUCLEAR REACTIONS 248Cm(23Na, 4n), (23Na, 5n), E=126, 130, 132 MeV; measured yields. RADIOACTIVITY 266Bh(α); measured Eα, Iα.
doi: 10.1143/JPSJ.78.064201
2009MO18 Phys.Rev. C 79, 064304 (2009) P.Moller, A.J.Sierk, T.Ichikawa, A.Iwamoto, R.Bengtsson, H.Uhrenholt, S.Aberg Heavy-element fission barriers NUCLEAR STRUCTURE Z=90-99, A=225-256; calculated double-humped fission barrier energies, first and second saddle heights, and fission-isomer energies. Z=78-125, N=91-188, A=171-312; calculated fission barrier heights for 1585 nuclides. 232Th; calculated proton and neutron single particle levels at saddles for symmetric and asymmetric fission modes. 228Th, 236U, 243Am, 252Cf, 278Nh, 305125; calculated potential energy surfaces. 232Th, 238,239,241,242,243Am; calculated fission-barrier structures and Fermi-gas level density parameters. Macroscopic-microscopic finite-range liquid-drop model. RADIOACTIVITY 236U, 232,240Pu, 222,224,230Cm, 224,230Cf, 226,252,258Fm, 277Cn(α)(SF); calculated α-decay and SF decay half-lives. 180Tl, 188Bi, 192,194,196At, 228Np, 232,234Am, 238,240Bk, 242,244,246,248Es, 246,248,250Md(EC); calculated Q-values and fission barriers in the daughter nuclides. Macroscopic-microscopic finite-range liquid-drop model calculations. Comparisons with experimental data.
doi: 10.1103/PhysRevC.79.064304
2009MO27 Phys.Rev.Lett. 103, 212501 (2009) P.Moller, A.J.Sierk, R.Bengtsson, H.Sagawa, T.Ichikawa Global Calculation of Nuclear Shape Isomers NUCLEAR STRUCTURE A=31-290; calculated potential energy surfaces; 70,72,74,76,78Kr, 180Hg, 186Pb, 208Pb; deduced deformations, shape isomerism.
doi: 10.1103/PhysRevLett.103.212501
2009SH34 Phys.Rev.Lett. 103, 232702 (2009) A.Shrivastava, A.Navin, A.Lemasson, K.Ramachandran, V.Nanal, M.Rejmund, K.Hagino, T.Ichikawa, S.Bhattacharyya, A.Chatterjee, S.Kailas, K.Mahata, V.V.Parkar, R.G.Pillay, P.C.Rout Exploring Fusion at Extreme Sub-Barrier Energies with Weakly Bound Nuclei NUCLEAR REACTIONS 198Pt(6Li, xn)199Tl/200Tl/201Tl/202Tl, E(cm)<35 MeV; measured x-rays, Eγ, Iγ; deduced fusion and evaporation residue excitation functions, average angular momentum and logarithmic derivatives of the fusion σ, internuclear potentials.
doi: 10.1103/PhysRevLett.103.232702
2008MO13 At.Data Nucl.Data Tables 94, 758 (2008) P.Moller, R.Bengtsson, B.G.Carlsson, P.Olivius, T.Ichikawa, H.Sagawa, A.Iwamoto Axial and reflection asymmetry of the nuclear ground state NUCLEAR STRUCTURE A=31-330; calculated nuclear ground state masses, deformation parameters; effect of axial and reflection asymmetry and of triaxiality; macroscopic-microscopic approach using folded-Yukawa single particle potential.
doi: 10.1016/j.adt.2008.05.002
2007IC01 Phys.Rev. C 75, 057603 (2007) T.Ichikawa, K.Hagino, A.Iwamoto Existence of a one-body barrier revealed in deep subbarrier fusion NUCLEAR REACTIONS 64Ni(64Ni, X), E(cm)< 110 MeV; calculated fusion cross section with a two step model.
doi: 10.1103/PhysRevC.75.057603
2007IC02 Phys.Rev. C 75, 064612 (2007) T.Ichikawa, K.Hagino, A.Iwamoto Systematics of threshold incident energy for deep sub-barrier fusion hindrance NUCLEAR REACTIONS 89Y, 90Zr, 92Zr(90Zr, X), 64Ni, 74Ge, 100Mo(64Ni, X), 89Y(60Ni, X), 58Ni, 60Ni, 64Ni, 74Ge(58Ni, X), 208Pb(50Ti, X), 48Ca(48Ca, X), 90Zr(40Ca, X), 89Y(34S, X), 89Y(32S, X), 58,62,64Ni, (28Si, X), 208Pb(19F, X), 208Pb, 144Sm, 76Ge, 16O(16O, X), 16O, 14N, 13C(12O, X), 12C(11O, X), 10B(10B, X), E< 200 MeV; calculated potential energy at the touching configuration for heavy-ion reactions using various potential models. Compared results to available data.
doi: 10.1103/PhysRevC.75.064612
2006MO31 Phys.Rev.Lett. 97, 162502 (2006) P.Moller, R.Bengtsson, B.G.Carlsson, P.Olivius, T.Ichikawa Global Calculations of Ground-State Axial Shape Asymmetry of Nuclei NUCLEAR STRUCTURE 108Ru; calculated potential energy surface, deformation. Z=6-116; calculated ground-state axial asymmetry parameters.
doi: 10.1103/PhysRevLett.97.162502
2005IC01 Phys.Rev. C 71, 044608 (2005) T.Ichikawa, A.Iwamoto, P.Moller, A.J.Sierk Barrier for cold-fusion production of superheavy elements NUCLEAR REACTIONS 208Pb(48Ca, X), (50Ti, X), (54Cr, X), (58Fe, X), (62Ni, X), (64Ni, X), (70Zn, X), (74Ge, X), (76Ge, X), 209Bi(58Fe, X), (64Ni, X), (70Zn, X), E not given; calculated fusion barrier energies, deformation effects. Comparisons with data.
doi: 10.1103/PhysRevC.71.044608
2005IC03 Phys.Rev. C 71, 067601 (2005) Effect of charge polarization on the Coulomb barrier for cold-fusion reactions NUCLEAR REACTIONS 208Pb(48Ca, X), (50Ti, X), (54Cr, X), (58Fe, X), (62Ni, X), (64Ni, X), (70Zn, X), (74Ge, X), (78Ge, X), 209Bi(58Fe, X), (64Ni, X), (70Zn, X), E not given; calculated Coulomb barrier height, effect of charge polarization.
doi: 10.1103/PhysRevC.71.067601
2004AS07 Prog.Theor.Phys.(Kyoto), Suppl. 154, 457 (2004) T.Asano, T.Wada, M.Ohta, T.Ichikawa, S.Yamaji, H.Nakahara Dynamical Calculation of Multi-Modal Nuclear Fission of Fermium Isotopes NUCLEAR STRUCTURE 256Fm; calculated fission fragment total kinetic energy and mass distributions, excitation energy dependence. Dynamical calculation.
doi: 10.1143/PTPS.154.457
2004AS14 J.Nucl.Radiochem.Sci. 5, No 1, 1 (2004) T.Asano, T.Wada, M.Ohta, T.Ichikawa, S.Yamaji, H.Nakahara Dynamical Calculation of Multi-Modal Nuclear Fission of Fermium Nuclei NUCLEAR STRUCTURE 256,258,264Fm; calculated fission fragments kinetic energy and mass distributions. Multi-modal fission model.
2004IW02 Nucl.Phys. A738, 499 (2004) A.Iwamoto, T.Ichikawa, P.Moller, A.J.Sierk Cluster expression in fission and fusion in high-dimensional macroscopic-microscopic calculations NUCLEAR STRUCTURE 272Ds; calculated fission potential energy surfaces. NUCLEAR REACTIONS 208Pb(64Ni, X), E not given; calculated collision surface energy vs projectile deformation.
doi: 10.1016/j.nuclphysa.2004.04.096
2004MO38 Prog.Theor.Phys.(Kyoto), Suppl. 154, 21 (2004) P.Moller, A.J.Sierk, T.Ichikawa, A.Iwamoto Fission and Fusion at the End of the Periodic System NUCLEAR REACTIONS 208Pb(50Ti, X), (70Zn, X), E not given; calculated potential energy vs separation and deformation. 208Pb(48Ca, X), (50Ti, X), (54Cr, X), (58Fe, X), (62Ni, X), (64Ni, X), (70Zn, X), (74Ge, X), (76Ge, X), E not given; calculated fusion barrier energies; deduced microscopic and deformation effects.
2002IC03 J.Nucl.Radiochem.Sci. 3, No 1, 67 (2002) T.Ichikawa, T.Asano, T.Wada, M.Ohta Dynamics of Fission Modes Studied with the 3-dimensional Langevin Equation NUCLEAR STRUCTURE 270Sg; calculated fission modes deformations, shell correction energy, fragments kinetic energy and mass distributions.
2001IC02 Prog.Theor.Phys.(Kyoto) 105, 915 (2001) Fission Width of Compound Nuclei Calculated Using the Mean First Passage Time Method NUCLEAR STRUCTURE 238U; calculated fission width vs angular momentum. Mean first passage time method. NUCLEAR REACTIONS 100Mo, 110Pd(100Mo, X), 110Pd(110Pd, X), E(cm)=170-290 MeV; calculated fission barrier, evaporation residue σ. Mean first passage time method.
doi: 10.1143/PTP.105.915
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