NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = S.Chiba Found 175 matches. Showing 1 to 100. [Next]2024IV01 Phys.Rev. C 109, 034602 (2024) F.A.Ivanyuk, C.Ishizuka, S.Chiba Five-dimensional Langevin approach to fission of atomic nuclei
doi: 10.1103/PhysRevC.109.034602
2024TU02 Eur.Phys.J. A 60, 25 (2024) A.Tudora, K.Fujio, C.Ishizuka, S.Chiba Prompt emission calculations for 239Pu(nth, f) with the DSE model code and a pre-neutron fragment distribution Y(A, TKE) based on the four-dimensional Langevin model NUCLEAR REACTIONS 239Pu(n, F), E thermal; calculated independent fission product yields (FPY) and other distributions of pre- and post-neutron fragments, prompt neutron multiplicity distributions. Comparison with available data.
doi: 10.1140/epja/s10050-024-01232-7
2023EB02 Int.J.Mod.Phys. E32, 2350030 (2023) S.Ebata, S.Okumura, C.Ishizuka, S.Chiba The difference between charge polarizations of fission fragments deduced by the static theoretical model and in the current data library NUCLEAR REACTIONS 235U(n, F), E low; analyzed available data; deduced a theoretical method to deduce the charge polarization (CP) and most probable charge for fission fragments for the selected range of mass numbers based on a quantum many-body framework, namely, a constrained Skyrme Hartree-Fock+BCS model.
doi: 10.1142/S0218301323500301
2023FU03 Eur.Phys.J. A 59, 178 (2023) K.Fujio, A.Al-Adili, F.Nordstrom, J.-F.Lemaitre, S.Okumura, S.Chiba, A.Koning TALYS calculations of prompt fission observables and independent fission product yields for the neutron-induced fission of 235U NUCLEAR REACTIONS 235U(n, F), E<20 MeV; calculated prompt neutron and γ-ray multiplicities, PFNS, independent fission product yields. Comparison with available data.
doi: 10.1140/epja/s10050-023-01095-4
2023IW01 J.Nucl.Sci.Technol.(Tokyo) 60, 1 (2023) O.Iwamoto, N.Iwamoto, S.Kunieda, F.Minato, S.Nakayama, Y.Abe, K.Tsubakihara, S.Okumura, C.Ishizuka, T.Yoshida, S.Chiba, N.Otuka, J.-C.Sublet, H.Iwamoto, K.Yamamoto, Y.Nagaya, K.Tada, C.Konno, N.Matsuda, K.Yokoyama, H.Taninaka, A.Oizumi, M.Fukushima, S.Okita, G.Chiba, S.Sato, M.Ohta, S.Kwon Japanese evaluated nuclear data library version 5: JENDL-5 NUCLEAR REACTIONS 233,235,238U, 237Np, 238,239,240,242Pu, 241,243Am, 243,244,245,246Cm(n, F), (n, γ), E<20 MeV; analyzed available data; deduced σ, average energies of prompt fission neutrons, prompt neutron multiplicities. Neutron sublibrary for all of stable and unstable isotopes with the half-lives longer than 1 day for Z<101 except 257Es. Comparison with JENDL-4.0, ENDF/B-VIII.0 and EXFOR libraries.
doi: 10.1080/00223131.2022.2141903
2023KU04 Eur.Phys.J. A 59, 2 (2023) S.Kunieda, O.Iwamoto, T.Fukahori, S.Chiba Collaboration with Dr. Efrem Sh. Soukhovitsukii: our fortuitous experiences on optical model analysis, his contribution to nuclear data activities of Japan and a posthumous study on light-nuclei NUCLEAR REACTIONS 160Gd(p, p'), E=65 MeV; 6,7Li, 9Be, 10B, 12C, N, O(p, X), E<200 MeV; calculated energy levels, J, π, bands using SRM, σ(θ), σ using SRM-CC; deduced optical model parameters. Comparison with experimental data. 2 computer codes, SHEMMAN and OPTMAN.
doi: 10.1140/epja/s10050-022-00907-3
2023LE02 Nucl.Phys. A1031, 122594 (2023) New targets for relic antineutrino capture NUCLEAR REACTIONS 131Ba, 159Dy, 175Hf, 195Au, 243Cm(ν-bar, X), E<1 eV; analyzed available data; deduced new candidates for the relic antineutrino detection, needs for high precise experiments of Q-values and intensities of EC decay.
doi: 10.1016/j.nuclphysa.2022.122594
2022IV05 Nucl.Phys. A1028, 122526 (2022) F.A.Ivanyuk, S.V.Radionov, C.Ishizuka, S.Chiba The memory effects in the Langevin description of nuclear fission
doi: 10.1016/j.nuclphysa.2022.122526
2022KO07 Prog.Theor.Exp.Phys. 2022, 023D02 (2022) T.Kouno, C.Ishizuka, T.Inakura, S.Chiba Pairing strength in the relativistic mean-field theory determined from the fission barrier heights of actinide nuclei and verified by pairing rotation and binding energies NUCLEAR STRUCTURE 16O, 40,48Ca, 56,58Ni, 88Sr, 90Zr, 112,124,132Sn, 146Gd, 208Pb, 234,236U, 240,242Pu, 242,244Cm; calculated binding energies, diffraction radii, surface thickness, pairing rotation energy, fission barriers using BCS pair correlation as a residual interaction in relativistic mean-field theory. Comparison with available data.
doi: 10.1093/ptep/ptab167
2022KO28 Int.J.Mod.Phys. E31, 2250080 (2022) T.Kouno, C.Ishizuka, K.Fujio, T.Inakura, S.Chiba Effects of triaxiality and pairing interaction on fission barriers of actinide nuclei NUCLEAR STRUCTURE 232,234,236,238,240U, 232,234Pu, 238,240,242,244Pu, 242,244,246,248Cm; calculated fission barriers. Comparison with available data.
doi: 10.1142/S021830132250080X
2021DI04 Nucl.Data Sheets 173, 144 (2021) P.Dimitriou, I.Dillmann, B.Singh, V.Piksaikin, K.P.Rykaczewski, J.L.Tain, A.Algora, K.Banerjee, I.N.Borzov, D.Cano-Ott, S.Chiba, M.Fallot, D.Foligno, R.Grzywacz, X.Huang, T.Marketin, F.Minato, G.Mukherjee, B.C.Rasco, A.Sonzogni, M.Verpelli, A.Egorov, M.Estienne, L.Giot, D.Gremyachkin, M.Madurga, E.A.McCutchan, E.Mendoza, K.V.Mitrofanov, M.Narbonne, P.Romojaro, A.Sanchez-Caballero, N.D.Scielzo Development of a Reference Database for Beta-Delayed Neutron Emission COMPILATION Z=2-87; compiled β-delayed neutron emission data; deduced total delayed neutron yields, time-dependent group parameters in 6- and 8-group representation, and aggregate delayed neutron spectra.
doi: 10.1016/j.nds.2021.04.006
2021HA21 Phys.Rev. C 103, 045801 (2021) T.Hayakawa, Y.Toh, A.Kimura, S.Nakamura, T.Shizuma, N.Iwamoto, S.Chiba, T.Kajino Isomer production ratio of the 112Cd(n, γ) 113Cd reaction in an s-process branching point NUCLEAR REACTIONS 112Cd(n, γ)113Cd/113mCd, E=66.8-8587 eV neutrons from BL04 neutron beam line of the MLF at J-PARC; measured E(n), I(n) by time-of-flight method, Eγ, Iγ using ANNRI array of two cluster HPGe detectors, eight coaxial HPGe detectors, and BGO Compton-suppression shields. 113Cd; deduced γ-rays intensities decaying to the ground state and the isomer, isomer production ratios for 21 neutron resonances from 66.8 to 8587 eV, minor s-process contribution from the 113Cd isomer to the solar abundance of 115Sn, Jπ of 14 neutron resonances from comparison of experimental γ-ray intensities with the corresponding expected theoretical yields for 1/2-, 1/2+ and 3/2- resonances using CCONE Hauser-Feshbach statistical model calculations.
doi: 10.1103/PhysRevC.103.045801
2021SH36 Phys.Rev. C 104, 054609 (2021) K.Shimada, C.Ishizuka, F.A.Ivanyuk, S.Chiba Dependence of total kinetic energy of fission fragments on the excitation energy of fissioning systems NUCLEAR REACTIONS 235U(n, F)236U*,239Pu(n, F)240Pu*, E=thermal MeV; calculated mass distribution of fission fragments, fission product yields, and compared with experimental results and with data in JENDL/FPY-2011 library. 235U(n, F)236U*,239Pu(n, F)240Pu*, E<50 MeV; calculated average total kinetic energy (TKE) of fission fragments, quadrupole moment (Q20) of fission fragments just after scission, dependence of average quadrupole moment (Q20) and average octupole (Q30) of fission fragments, distance between the center of mass of the nascent fragments just after scission using method based on the four-dimensional Langevin equations. Comparison with experimental data. Relevance to decrease of average total kinetic energy of fission fragments as the excitation energy of the compound nuclei increases, as indicated by experimental data of neutron-induced fission reactions.
doi: 10.1103/PhysRevC.104.054609
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
2020IS01 Phys.Rev. C 101, 011601 (2020) C.Ishizuka, X.Zhang, M.D.Usang, F.A.Ivanyuk, S.Chiba Effect of the doubly magic shell closures in 132Sn and 208Pb on the mass distributions of fission fragments of superheavy nuclei NUCLEAR STRUCTURE 274Hs, 280Ds, 286Cn, 292Fl, 296Lv, 294Og, 302120, 306122; calculated fission fragment mass distributions for the excitation energy 10 and 30 MeV as a function of fragment mass number; deduced effect of doubly magic nuclei 132Sn and 208Pb on the mass distributions of fission fragments of superheavy nuclei 236U, 240Pu, 244Cm, 252Cf, 256,257,258,259,264Fm, 260Md, 259Lr, 274Hs, 286Cn, 292Fl, 296Lv, 294Og, 302120, 306122; calculated distribution of quadrupole deformation Q20 as function of fission fragment mass number. Calculations used dynamical four-dimensional Langevin approach.
doi: 10.1103/PhysRevC.101.011601
2020LI21 Phys.Rev. C 101, 064616 (2020) V.L.Litnevsky, F.A.Ivanyuk, G.I.Kosenko, S.Chiba Formation of superheavy nuclei in 36S 238U and 64Ni 238U reactions NUCLEAR REACTIONS 238U(36S, X)274Hs*, E*=35.8, 41.6, 47.3, 57.7 MeV; 238U(64Ni, X)302120*, E*=23.2, 33.5, 45.2, 64.1 MeV; calculated capture, fusion, fission, and evaporation residue formation σ(E), and neutron emission probabilities. Comparison with experimental results for 238U+36S, and with other theoretical calculations for 238U+64Ni.
doi: 10.1103/PhysRevC.101.064616
2019KE06 Phys.Rev. C 100, 014611 (2019) K.R.Kean, K.Nishio, K.Hirose, M.J.Vermeulen, H.Makii, R.Orlandi, K.Tsukada, A.N.Andreyev, I.Tsekhanovich, S.Chiba Validation of the multinucleon transfer method for the determination of the fission barrier height NUCLEAR REACTIONS 237Np, Ni(18O, 18O), (18O, 17O), (18O, 16O), (18O, 17N), (18O, 16N), (18O, 15N), (18O, 14N), (18O, 15C), (18O, 14C), (18O, 13C), (18O, 12C), (18O, 11C), (18O, 11B), (18O, 10B), (18O, 10Be), (18O, 9Be), (18O, 7Be), (18O, 7Li), (18O, 6Li), E=162 MeV; measured reaction products, particle identification plots, energy loss versus total energy, (charged particles)(fission fragment)-coin using four multiwire proportional counters for fission fragment detection and segmented silicon ΔE-E telescope for ejectile detection at the JAEA tandem accelerator facility; deduced fission probabilities and fission barrier heights for 239Np, 239Pu and 240Pu at E*=0-24 MeV using multinucleon transfer (MNT) method. Comparison with previous experimental values, and in RIPL3 database.
doi: 10.1103/PhysRevC.100.014611
2019LI27 Phys.Rev. C 99, 054624 (2019) V.L.Litnevsky, F.A.Ivanyuk, G.I.Kosenko, S.Chiba Description of the mass-asymmetric fission of the Pt isotopes, obtained in the reaction 36Ar + 142Nd within the two-stage fusion-fission model NUCLEAR REACTIONS 142Nd(36Ar, X)178Pt*,142Nd(36Ar, xn), E(cm)=122.78, 134.68, 142.58 MeV; calculated potential energy of projectile-target system, partial σ(E), fission fragment mass distribution, mass-energy distribution of fission events, and deformation energy and potential energy surface of 178Pt compound nucleus before neutron evaporation, neutron evaporation probability. Two-stage dynamical stochastic model. Comparison with experimental data. 178Pt; calculated deformation and potential energy surfaces.
doi: 10.1103/PhysRevC.99.054624
2019SU21 J.Phys.(London) G46, 075103 (2019) T.Suzuki, A.B.Balantekin, T.Kajino, S.Chiba Neutrino-13C cross sections at supernova neutrino energies NUCLEAR REACTIONS 13C(ν, E), (ν, ν), E<50 MeV; calculated σ. Comparison with available data.
doi: 10.1088/1361-6471/ab1c11
2018HA31 Phys.Rev.Lett. 121, 102701 (2018) T.Hayakawa, H.Ko, M.-K.Cheoun, M.Kusakabe, T.Kajino, M.D.Usang, S.Chiba, K.Nakamura, A.Tolstov, K.Nomoto, M.-a.Hashimoto, M.Ono, T.Kawano, G.J.Mathews Short-Lived Radioisotope 98Tc Synthesized by the Supernova Neutrino Process NUCLEAR REACTIONS 98Mo(ν, E)98Tc, 99Tc(ν, ν'n)98Tc, 99Ru(ν, ν'p)98Tc, E=1-9 MeV; calculated yields, abundances as a function of interior mass from the Supernova; deduced dominance the charged current reaction on 98Mo reaction.
doi: 10.1103/PhysRevLett.121.102701
2018IV04 Phys.Rev. C 97, 054331 (2018) F.A.Ivanyuk, C.Ishizuka, M.D.Usang, S.Chiba Temperature dependence of shell corrections NUCLEAR STRUCTURE 236U; calculated temperature dependence of shell corrections and averaged in deformation to the energy, entropy and free energy for protons and neutrons of 236U g.s. with and without pairing effects using mean-field approximation; deduced more accurate approximation for the shell corrections to energy and free energy. A=50-250; calculated pairing critical temperature for protons and neutrons along the β-stability line. NUCLEAR REACTIONS 232Th, 238U(n, F), E=32.8, 45.3, 59.9 MeV; calculated fission fragment mass distributions using new shell corrections to the liquid drop energy and deformed Woods-Saxon potential. Comparison with experimental values and predictions from previous shell corrections.
doi: 10.1103/PhysRevC.97.054331
2018KI18 Phys.Rev. C 98, 064611 (2018) Y.Kikuchi, K.Ogata, T.Hayakawa, S.Chiba Azimuthal angle distributions of neutrons emitted from the 9Be (γ, n) reaction with linearly polarized γ rays NUCLEAR REACTIONS 9Be(polarized γ, n)8Be/9Be, E=1.5-16 MeV; calculated resonant excitation energies and widths of states in 9Be, σ(E), and anisotropy parameters for E1 and M1 transitions in 9Be using α+α+n three-body model with complex-scaled solutions of the Lippmann-Schwinger equation. Comparison with experimental values.
doi: 10.1103/PhysRevC.98.064611
2018OK05 J.Nucl.Sci.Technol.(Tokyo) 55, 1 (2018) S.Okumura, To.Kawano, P.Jaffke, P.Talou, S.Chiba 235U(n, f) Independent fission product yield and isomeric ratio calculated with the statistical Hauser-Feshbach theory NUCLEAR REACTIONS 235U(n, F), E thermal; calculated Independent fission product yield and isomeric ratio using statistical Hauser-Feshbach theory.
doi: 10.1080/00223131.2018.1467288
2018SU20 Phys.Rev. C 98, 034613 (2018) T.Suzuki, S.Chiba, T.Yoshida, K.Takahashi, H.Umeda Neutrino-nucleus reactions on 16O based on new shell-model Hamiltonians NUCLEAR REACTIONS 16O(ν, e-)16F, 16O(ν-bar, e+)16N, 16O(ν, ν'), 16O(ν, e-p)15O, 16O(ν, e-np)14O, 16O(ν, e-pp)14N, 16O(ν, e-3He)13N, 16O(ν, e-α)12N, 16O(ν, e-p3He)12C, 16O(ν, e-pα)11C, 16O(ν-bar, e+n)15N, 16O(ν-bar, e+np)14C, 16O(ν-bar, e+nn)14N, 16O(ν-bar, e+t)13C, 16O(ν-bar, e+α)12B, 16O(ν-bar, e+nα)11B, 16O(ν, ν'n)15O, 16O(ν, ν'p)15N, 16O(ν, ν'np)14N, 16O(ν, ν'pp)14C, 16O(ν, ν't)13N, 16O(ν, ν'3He)13C, 16O(ν, ν'α)12C, 16O(ν, ν'nα)11C, 16O(ν, ν'pα)11B, E=0-100 MeV; calculated 16O spin-dipole strength, total σ(E), partial σ(E) from each multipole of excited product nucleus or single- and multi-particle emission channels using shell-model with new Hamiltonian SFO-tls, and branching ratios for various channels from Hauser-Feshbach statistical model. Comparison with other theoretical predictions. Discussed production yields of 6,7Li, 7,9Be, 10,11B, 11C from supernova simulations using theoretical reaction cross sections. Discussed effects of multiparticle emission channels on nucleosynthesis in core-collapse supernova explosion. Relevance to supernova (SN) neutrino detection at the Super-Kamiokande.
doi: 10.1103/PhysRevC.98.034613
2018YO11 Phys.Rev. C 98, 041303 (2018) T.Yoshida, T.Tachibana, S.Okumura, S.Chiba Spectral anomaly of reactor antineutrinos based on theoretical energy spectra NUCLEAR REACTIONS 235,238U, 239,241Pu(n, F), E=thermal; calculated spectra for electrons and antineutrinos from fission products within a power reactor using gross theory of β-decay for about 500 fission products. Comparison with inverse β-decay (IBD) data from Daya Bay reactors, and from BILL spectrometer at ILL-Grenoble. Relevance to future experiments at high-flux reactors at Grenoble (the STEREO Collaboration), Oak Ridge (the PROSPECT Collaboration), and at Mol (the SoLid Collaboration).
doi: 10.1103/PhysRevC.98.041303
2017HI03 Nucl.Instrum.Methods Phys.Res. A856, 133 (2017) K.Hirose, K.Nishio, H.Makii, I.Nishinaka, S.Ota, T.Nagayama, N.Tamura, S.Goto, A.N.Andreyev, M.J.Vermeulen, S.Gillespie, C.Barton, A.Kimura, H.Harada, S.Meigo, S.Chiba, T.Ohtsuki Simultaneous measurement of neutron-induced fission and capture cross sections for 241Am at neutron energies below fission threshold NUCLEAR REACTIONS 241Am(n, F), (n, γ), E<20 eV; measured reaction products, En, In, Eγ, Iγ; deduced σ, resonances. Comparison with JENDL-4.0, JEFF evaluated nuclear data libraries.
doi: 10.1016/j.nima.2016.12.021
2017HI10 Phys.Rev.Lett. 119, 222501 (2017) K.Hirose, K.Nishio, S.Tanaka, R.Leguillon, H.Makii, I.Nishinaka, R.Orlandi, K.Tsukada, J.Smallcombe, M.J.Vermeulen, S.Chiba, Y.Aritomo, T.Ohtsuki, K.Nakano, S.Araki, Y.Watanabe, R.Tatsuzawa, N.Takaki, N.Tamura, S.Goto, I.Tsekhanovich, A.N.Andreyev Role of Multichance Fission in the Description of Fission-Fragment Mass Distributions at High Energies NUCLEAR REACTIONS 238U(18O, X)237U/238U/239U/240U/240Np/241Np/242Np/241Pu/242Pu/243Pu/244Pu, E=157.5 MeV; measured reaction products; deduced fragment yields.
doi: 10.1103/PhysRevLett.119.222501
2017IS16 Phys.Rev. C 96, 064616 (2017) C.Ishizuka, M.D.Usang, F.A.Ivanyuk, J.A.Maruhn, K.Nishio, S.Chiba Four-dimensional Langevin approach to low-energy nuclear fission of 236U NUCLEAR REACTIONS 235U(n, F), E=14 MeV; 257Fm(n, F), E=thermal; calculated mass distribution of fission fragments, fission events on the mass-TKE plane, TKE distributions. 235U(n, F), E=0.5, 3.5, 5.5, 8.5, 13.5 MeV; calculated TKE of fission fragments, contour map of prescission kinetic energy as a function of mass number of fission fragments, distribution of deformation parameter in its dependence on the mass number. Four-dimensional (4D) Langevin model with infinite-depth two-center shell-model (TCSM) potential and the finite-depth two-center Woods-Saxon (TCWS) potential. Comparison with experimental data in JENDL/FPY-2011 data library.
doi: 10.1103/PhysRevC.96.064616
2017KO24 Phys.Rev. C 95, 064304 (2017) Improvement to the gross theory of β decay by inclusion of change in parity RADIOACTIVITY 103,104,105,106Rb, 103,104,105,106Sr, 105,106,107,108,109Y, 106,107,108,109,110,111,112Zr, 107,108,109,110,111,112,113,114,115Nb, 109,110,111,112,113,114,115,116,117,118Mo, 112,113,114,115,116,117,118,119,120,121Tc, 116,117,118,119,120,121,122,123,124Ru, 117,118,119,120,121,122,123,124,125,126,127Rh, 120,121,122,123,124,125,126,127,128,129Pd, 124,125,126,127,128,129,130,131,132Ag, 126,127,128,129,130,131,132,133,134Cd, 128,129,130,131,132,133,134,135,136,137In, 134,135,136,137,138,139Sn, 46,47,48,49Ar, 65,66,67,68Ni, 90,91,92Kr(β-); Z=8-90, N=8-140(β-); calculated β-decay half-lives using improvement to the single-particle structure in the gross theory of β decay with the assignment of parity from Woods-Saxontype single-particle potential. Comparison with previous gross theory of β decay, and with experimental values.
doi: 10.1103/PhysRevC.95.064304
2017MA52 Chin.Phys.C 41, 094105 (2017) D.S.Martyanov, E.Sh.Soukhovitskii, R.Capote, J.M.Quesada, S.Chiba Predicting the optical observables for nucleon scattering on even-even actinides NUCLEAR REACTIONS 228,230,232Th, 232,234,236,238U, 238,240,242,244Pu, 246,248Cm, 250Cf(n, X), E<200 MeV; analyzed available data; deduced extended Lane consistent dispersive coupled-channel optical model for nucleon scattering.
doi: 10.1088/1674-1137/41/9/094105
2017US02 Phys.Rev. C 96, 064617 (2017) M.D.Usang, F.A.Ivanyuk, C.Ishizuka, S.Chiba Analysis of the total kinetic energy of fission fragments with the Langevin equation NUCLEAR REACTIONS 235U(n, F), E=14 MeV; 257Fm(n, F), E=thermal; 231Pa, 238U, 239Pu(n, F), E<45 MeV; calculated mass distribution and the total kinetic energy (TKE) of fission fragments at various excitation energies within the three-dimensional Langevin approach with microscopic transport coefficients; deduced systematic trends of TKE with Z2/A1/3 of the fissioning system. Comparison with evaluated post-neutron distributions data stored in JENDL library.
doi: 10.1103/PhysRevC.96.064617
2016CA07 Phys.Rev. C 93, 024609 (2016) Scission neutrons for U, Pu, Cm, and Cf isotopes: Relative multiplicities calculated in the sudden limit RADIOACTIVITY 232,234,236,238,240U, 236,238,240,242,244Pu, 242,244,246,248,250Cm, 246,248,250,252,254Cf(SF); calculated scission-neutron (SN) multiplicity in the sudden limit as a function of mass asymmetry and as function of neutron number of fissioning nucleus, scission-neutron multiplicities averaged over all mass ratios. Fission yields calculated using GEF code. Scission-neutron (SN) multiplicity calculated also for the 235U(n, F), E=thermal reaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.93.024609
2016HA11 Phys.Rev. C 93, 044313 (2016) T.Hayakawa, T.Shizuma, S.Miyamoto, S.Amano, A.Takemoto, M.Yamaguchi, K.Horikawa, H.Akimune, S.Chiba, K.Ogata, M.Fujiwara Spatial anisotropy of neutrons emitted from the 56Fe(γ, n)55Fe reaction with a linearly polarized γ-ray beam NUCLEAR REACTIONS 56Fe(polarized γ, n), (polarized γ, γ'), E<16.7 MeV laser Compton scattered beam at NewSUBARU electron storage ring; measured neutron spectra by TOF method, angular distribution of neutrons, neutron azimuthal anisotropy. 55Fe; deduced levels, J, π.
doi: 10.1103/PhysRevC.93.044313
2016HA37 Phys.Rev. C 94, 055803 (2016) T.Hayakawa, Y.Toh, M.Huang, T.Shizuma, A.Kimura, S.Nakamura, H.Harada, N.Iwamoto, S.Chiba, T.Kajino Measurement of the isomer production ratio for the 112Cd(n, γ)113Cd reaction using neutron beams at J-PARC NUCLEAR REACTIONS 112Cd(n, γ), E<5 keV; measured Eγ, Iγ, time-of-flight spectra, nγ-coin, γ-ray intensity ratios versus neutron energy using the Accurate Neutron-Nucleus Reaction Measurement Instrument (ANNRI) at J-PARC facility; deduced isomer production ratio as function of neutron energies, including neutron resonances. Relevance to s-process branching point for nucleosynthesis.
doi: 10.1103/PhysRevC.94.055803
2016IC01 Phys.Rev. C 93, 064612 (2016) D.Ichinkhorloo, M.Aikawa, S.Chiba, Y.Hirabayashi, K.Kato Low energy scattering cross sections for n + 6, 7Li reactions using the continuum-discretized coupled-channels method NUCLEAR REACTIONS 6,7Li(n, n), (n, n'), E=1-24 MeV; calculated elastic and inelastic scattering σ(E, θ) using n+(α+d) and n+(α+t) cluster models, continuum-discretized coupled-channel (CDCC) method with the JLM effective nucleon-nucleon interaction. Comparison with experimental and evaluated data.
doi: 10.1103/PhysRevC.93.064612
2016LE13 Phys.Lett. B 761, 125 (2016) R.Leguillon, K.Nishio, K.Hirose, H.Makii, I.Nishinaka, R.Orlandi, K.Tsukada, J.Smallcombe, S.Chiba, Y.Aritomo, T.Ohtsuki, R.Tatsuzawa, N.Takaki, N.Tamura, S.Goto, I.Tsekhanovich, C.M.Petrache, A.N.Andreyev Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the 18O + 232Th reaction NUCLEAR REACTIONS 232Th(18O, X)231Th/232Th/233Th/234Th/232Pa/233Pa/234Pa/235Pa/236Pa/234U/235U/236U/237U/238U, E=157 MeV; measured fission fragments; deduced fission yields.
doi: 10.1016/j.physletb.2016.08.010
2016SO16 Phys.Rev. C 94, 064605 (2016); Erratum Phys.Rev. C 102, 059901 (2020) E.Sh.Soukhovitskii, R.Capote, J.M.Quesada, S.Chiba, D.S.Martyanov Nucleon scattering on actinides using a dispersive optical model with extended couplings NUCLEAR REACTIONS 233,235,238U, 232Th(n, X), E=0.001-200 MeV; calculated total σ(E) using dispersive potential with multiple-band couplings, compound-nucleus formation cross section using the rigid-rotor RIPL 2408 potential and the potential derived in the present work. Dispersive isospin-dependent coupled-channels optical model analysis, and extended Tamura's coupling formalism for low-lying bands of vibrational nature in even-even and single-particle nature in odd-A actinides. Comparison with experimental data and with RIPL 2408 potential. 232Th, 233,235,238U, 239Pu; calculated average resonance parameters using derived optical model potential, and compared with experimental data and with RIPL 2408 potential and evaluated data, ground-state deformation parameters β2, β4 and β6, and interband effective coupling parameters.
doi: 10.1103/PhysRevC.94.064605
2016US04 Phys.Rev. C 94, 044602 (2016) M.D.Usang, F.A.Ivanyuk, C.Ishizuka, S.Chiba Effects of microscopic transport coefficients on fission observables calculated by the Langevin equation NUCLEAR STRUCTURE 234,236U, 240Pu; calculated fission fragment mass distribution, total kinetic energy, microscopic transport coefficients for fission of compound nuclei at an excitation energy of 20 MeV. Three-dimensional Langevin model. Comparison with experimental data.
doi: 10.1103/PhysRevC.94.044602
2014AR12 Phys.Rev. C 90, 054609 (2014) Fission dynamics at low excitation energy NUCLEAR REACTIONS 236U(n, F) at E*=20 MeV; calculated potential energy as function of deformation, mass distribution of fission fragments, trajectories of the fission process, nuclear shapes around the scission point, distribution of fission events as function of deformation at the scission point, total kinetic energy distribution (TKE) of fission events as function of deformation parameter. Fluctuation-dissipation model using Langevin equations for dynamics of fission process, within the two-center shell-model parameterization (TCSMP) and the shape characterized by five deformation parameters.
doi: 10.1103/PhysRevC.90.054609
2014CH38 Nucl.Data Sheets 119, 229 (2014) S.Chiba, K.Nishio, H.Makii, Y.Aritomo, I.Nishinaka, T.Ishii, K.Tsukada, M.Asai, K.Furutaka, S.Hashimoto, H.Koura, K.Ogata, T.Ohtsuki, T.Nagayama Surrogate Reactions Research at JAEA/Tokyo Tech NUCLEAR REACTIONS 235,238U(18O, F), E not given; measured reaction products; deduced fission fragment mass yields. 238U(18O, 16O), E not given; measured ejectiles, fission fragments; deduced fission fragment mass distribution, yields vs E*, unnormalized fission probability; calculated fission fragment mass distribution using multidimensional Langevin method. 239U(n, F), E=0.5-20 MeV; measured fission fragments; deduced fission σ vs neutron energy. 155Gd(18O, 16O), E not given; measured reaction products. 156Gd(n, γ), E=0.5-3.5 MeV; deduced σ using SRM (surrogate ratio method). Compared with ENDF/B/VII.1.
doi: 10.1016/j.nds.2014.08.063
2014HO14 Phys.Lett. B 737, 109 (2014) K.Horikawa, S.Miyamoto, T.Mochizuki, S.Amano, D.Li, K.Imasaki, Y.Izawa, K.Ogata, S.Chiba, T.Hayakawa Neutron angular distribution in (γ, n) reactions with linearly polarized γ-ray beam generated by laser Compton scattering NUCLEAR REACTIONS 197Au, 127I, Cu(polarized γ, n), E<16.7 MeV; measured reaction products, En, In, Eγ, Iγ; deduced yields, neutron angular distribution anisotropy. Comparison with available data.
doi: 10.1016/j.physletb.2014.08.024
2014IV06 Phys.Rev. C 90, 054607 (2014) F.A.Ivanyuk, S.Chiba, Y.Aritomo Scission-point configuration within the two-center shell model shape parameterization NUCLEAR REACTIONS 236U(n, F), E=thermal; calculated total deformation energy, shell component of scission point deformation energy, total energy (liquid drop plus shell correction) at the scission point, deformation energy before and after scission as function of elongation and heavy fragment mass number, mass distribution of fission fragments, excitation energy available for prompt neutron emission. 233Th, 236U, 240Pu, 246Cm(n, F), E=thermal; calculated total kinetic energies (TKEs), total excitation energies during the neck rupture. 232Th, 233,235,238U, 237Np, 239,240,241Pu, 241,243Am, 245Cm(n, F), E not given; calculated total neutron multiplicity. Optimal shape descriptions for fissioning systems. Two-center shell model parameterization for scission-point configuration. Comparison with experimental data.
doi: 10.1103/PhysRevC.90.054607
2014MA62 Nucl.Data Sheets 119, 361 (2014) H.Makii, S.Ota, T.Ishii, K.Nishio, I.Nishinaka, K.Furutaka, Y.Wakabayashi, S.Chiba, M.Igashira Development of Anti-Compton LaBr3(Ce) Spectrometer for Measurement of Surrogate Reactions NUCLEAR REACTIONS 27Al(p, γ), E=992, 2046 keV; measured Eγ, Iγ. 155,157Gd(18O, 16O), E*=3-14 MeV; measured Eγ, Iγ, (16O)γ-coin. LaBr3(Ce) spectrometer. 7
doi: 10.1016/j.nds.2014.08.099
2014QU02 Nucl.Data Sheets 118, 270 (2014) J.M.Quesada, R.Capote, E.Sh.Soukhovitskii, S.Chiba Rotational-vibrational Description of Nucleon Scattering on Actinide Nuclei Using a Dispersive Coupled-channel Optical Model NUCLEAR REACTIONS 232Th, 238U(p, x), E=threshold-100 MeV; calculated total σ using DCCOMP (dispersive optical model with different types of rotational bands). Compared with data and calculations with RIPL potentials.
doi: 10.1016/j.nds.2014.04.055
2013AR07 Phys.Rev. C 88, 044614 (2013) Fission process of nuclei at low excitation energies with a Langevin approach RADIOACTIVITY 234U, 236U, 240Pu(SF); calculated potential energy surfaces, mass distribution of fission fragments (MDFF) for kinetic energy of 20 MeV for the fissioning nucleus. Dynamical model based on the fluctuation-dissipation theorem using Langevin equations. Comparison with experimental data. NUCLEAR REACTIONS 236U(d, F), E=16.3, 20, 30, 40 MeV; calculated mass distribution of fission fragments (MDFF). Dynamical model based on the fluctuation-dissipation theorem using Langevin equations. Comparison with experimental data.
doi: 10.1103/PhysRevC.88.044614
2013KO01 J.Phys.Soc.Jpn. 82, 014201 (2013) Single-Particle Levels of Spherical Nuclei in the Superheavy and Extremely Superheavy Mass Region NUCLEAR STRUCTURE 256U, 298Fl, 310126, 342Fl, 366138, 462154, 472164; calculated single-particle level energies, J, π, single particle potentials. deduced beta stable nuclei 298Fl, 310164. Modified Woods-Saxon potential calculations.
doi: 10.7566/JPSJ.82.014201
2012AR02 Phys.Rev. C 85, 044614 (2012) Y.Aritomo, K.Hagino, K.Nishio, S.Chiba Dynamical approach to heavy-ion induced fission using actinide target nuclei at energies around the Coulomb barrier NUCLEAR REACTIONS 238U(34S, X), (36S, X), (30Si, X), E(cm)=130-180 MeV; analyzed experimental data for σ(E) and fission fragment mass distribution in heavy-ion induced fission. 238U(36S, X)274Hs*, E*=39.5 MeV; 238U(30Si, X)268Sg*, E*=35.5 MeV; calculated potential energy surfaces and nuclear shapes near scission point, probability distribution contour maps, time evolution of the probability distribution, Langevin trajectories. Coupled Channel calculations and a fluctuation-dissipation model for fusion-fission, quasifission and deep quasifission processes.
doi: 10.1103/PhysRevC.85.044614
2012CH25 Phys.Rev. C 85, 065807 (2012) M.-K.Cheoun, E.Ha, T.Hayakawa, S.Chiba, K.Nakamura, T.Kajino, G.J.Mathews Neutrino induced reactions for ν-process nucleosynthesis of 92Nb and 98Tc NUCLEAR REACTIONS 92Zr(ν, e)92Nb, 93Nb[ν, ν'n)92Nb, 93Nb(ν-bar, ν-bar'n]92Nb, 98Mo(ν, e)98Tc, 99Ru(ν, ν'p)98Tc, 99Ru(ν-bar, ν-bar'p)98Tc, E<80 MeV; calculated B(GT) strength distributions, energy and temperature dependent σ in charge current (CC) and neutral current (NC) reactions. Quasiparticle random phase approximation calculations. Nucleosynthesis of odd-odd 98Tc and 92Nb nuclei by the ν-process in core-collapse supernovae.
doi: 10.1103/PhysRevC.85.065807
2012IC05 Phys.Rev. C 86, 064604 (2012) D.Ichinkhorloo, Y.Hirabayashi, K.Kato, M.Aikawa, T.Matsumoto, S.Chiba Analysis of 7Li(n, n')7Li reactions using the continuum-discretized coupled-channels method NUCLEAR REACTIONS 7Li(n, n), (n, n')7Li*, E=11.5-24.0 MeV; calculated σ(θ, E) for elastic and inelastic channels, neutron spectra in terms of double-differential σ(E, θ). Continuum-discretized coupled-channels (CDCC) method, α+t cluster model. Comparison with experimental data.
doi: 10.1103/PhysRevC.86.064604
2012OR01 J.Phys.(London) G39, 045101 (2012) S.Oryu, Y.Hiratsuka, S.Nishinohara, S.Chiba Proton-proton phase shifts calculations in momentum space by a rigorous Coulomb treatment
doi: 10.1088/0954-3899/39/4/045101
2011AR11 Phys.Rev. C 84, 024602 (2011) Dynamical model of surrogate reactions NUCLEAR REACTIONS 236,238U(18O, 16O)238U/240U, E(cm)=133.5 MeV; calculated potential energy surfaces for 240U and 256Fm, spin distributions, fragment mass distributions. Dynamical model of surrogate reactions employing Multidimensional Langevin equations. Comparison with experimental data.
doi: 10.1103/PhysRevC.84.024602
2011CH55 Phys.Rev. C 84, 054602 (2011) Spin-dependent observables in surrogate reactions NUCLEAR REACTIONS 237,239U(n, γ)238U*/240U*, E=0-5 MeV; calculated spectra of evaporated neutrons, multiplicity of γ rays, spectra of cascading γ rays, fission fragment mass distribution as function of the spin of the compound nucleus. Hauser-Feshbach theory , and Fluctuation-dissipation theorem. Surrogate ratio methods.
doi: 10.1103/PhysRevC.84.054602
2011HA22 Phys.Rev. C 83, 054617 (2011) S.Hashimoto, M.Yahiro, K.Ogata, K.Minomo, S.Chiba Effective radii of deuteron-induced reactions NUCLEAR REACTIONS 9Be, 27Al, 58Ni, 93Nb, 208Pb(d, X), E=200 MeV/nucleon; 7Li(d, n), E=40 MeV; calculated cross sections, σ(θ), effective radius and width, proton and neutron stripping, elastic breakup, total fusion. Continuum-discretized coupled-channels (CDCC) method and eikonal reaction theory (ERT). Comparison with Glauber model calculations and experimental data.
doi: 10.1103/PhysRevC.83.054617
2011IC05 J.Nucl.Sci.Technol.(Tokyo) 48, 1357 (2011) D.Ichinkhorloo, T.Matsumoto, Y.Hirabayashi, K.Kato, S.Chiba Analysis of n + 6Li Reactions Using the Continuum-Discretized Coupled-Channels Method NUCLEAR REACTIONS 6Li(n, n'), E=11.5, 14.1, 18 MeV; calculated σ(θ), σ(θ, E); deduced neutron spectra. Continuum-discretized coupled-channels (CDCC) approach.
doi: 10.3327/jnst.48.1357
2011IW04 J.Korean Phys.Soc. 59, 1224s (2011) O.Iwamoto, T.Nakagawa, S.Chiba, N.Otuka Covariance Evaluation for Actinide Nuclear Data in JENDL-4 COMPILATION 233,235,238U(n, F), E=0.01-20 eV;239Pu(n, F), E=0.01 eV-20 MeV;235U, 237Np, 241Am(n, γ), E=0.01-20 eV; evaluated σ, σ covariances. 237Np(n, γ), E=0.001-20 MeV; calculated σ using different models and parameters; evaluated σ covariance. 233U(n, X), E=0.001-20 MeV; evaluated σ, σ uncertainty, covariance. 232Th, 232,233,234,235,236,238U, 237Np, 239,240,241,242Pu, 241,242m,243Am, 242,244,245Cm(n, F), (n, γ), E=thermal; evaluated σ uncertainty, covariance. 242,244,245Cm(n, F), E=0.1-20 MeV; evaluated σ uncertainty, covariance. 233U(n, F), E=0.01-20 MeV; evaluated prompt, delayed neutron multiplicity. Comparison with data.
doi: 10.3938/jkps.59.1224
2011LE31 J.Korean Phys.Soc. 59, 1019s (2011) J.-Y.Lee, E.Sh.Soukhovitskii, Y.Kim, R.Capote, S.Chiba, J.M.Quesada Self-Consistent Analyses of Nuclear Level Structures, and Nucleon Interaction Data of Even-even Sn Isotopes NUCLEAR REACTIONS 120Sn(n, n), E=0.1-200 MeV;120Sn(n, p), E=10-200 Mev; calculated σ; 120Sn(n, n), (n, n'), E=0.94, 11.0, 13.9, 16.1 MeV;120Sn(p, p), E=9.7, 16.0, 20.4, 24.6, 30.3, 40.0, 61.5, 100.4, 134.7, 156.0 MeV;120Sn(p, p'), E=20.4, 24.6, 61.5 MeV; calculated σ(θ); 116Sn(p, n), E=22.8 MeV;118Sn(p, n), E=22.8, 25 MeV;120Sn(p, n), E=22.8, 25, 35, 45 MeV; calculated σ(θ). Deduced optical potential parameters. Soft-rotator model, coupled-channels optical model with dispersive Lane-consistent potential. Comparison with data. NUCLEAR STRUCTURE 120Sn; calculated levels, J, π, rotational band using soft-rotator model. Comparison with data.
doi: 10.3938/jkps.59.1019
2011MA40 Phys.Rev. C 83, 064611 (2011) T.Matsumoto, D.Ichinkhorloo, Y.Hirabayashi, K.Kato, S.Chiba Systematic description of the 6Li(n, n')6Li* → d + α reactions with the microscopic coupled-channels method NUCLEAR REACTIONS 6Li(n, n), (n, n'), E=7.47-24.0 MeV; calculated elastic and inelastic σ(θ), neutron spectra using the continuum-discretized coupled-channels method with the Jeukenne-Lejeune-Mahaux effective nucleon-nucleon interaction, and α+d cluster model for 6Li. Comparison with experimental data.
doi: 10.1103/PhysRevC.83.064611
2011MI05 Nucl.Phys. A856, 55 (2011) Fission barrier of actinide nuclei with double-Λ particles within the Skyrme-Hartree-Fock method NUCLEAR STRUCTURE 13B, 240U double hypernuclei; calculated fission barriers.
doi: 10.1016/j.nuclphysa.2011.02.127
2011OG08 J.Nucl.Sci.Technol.(Tokyo) 48, 1337 (2011) Three-Body Model Calculation of Spin Distribution in Two-Nucleon Transfer Reaction for the System of 238U(18O, 16O)240U Reaction NUCLEAR REACTIONS 238U(18O, 16O), E=180 MeV; calculated σ(θ), partial elastic cross sections. CDCC-BA method.
doi: 10.3327/jnst.48.1337
2011OG12 J.Phys.:Conf.Ser. 312, 082008 (2011) K.Ogata, T.Matsumoto, S.Hashimoto, K.Minomo, T.Egami, Y.Iseri, M.Kohno, S.Chiba, C.A.Bertulani, Y.R.Shimizu, M.Kamimura, M.Yahiro Status of breakup reaction theory NUCLEAR REACTIONS 7Li(d, γ), (d, n), (d, p), E=10-50 MeV; calculated σ. 90Zr(p, p), E=65, 800 MeV; calculated dσ with and without Brieva-Rook localization. 208Pb(8B, X), E=250 MeV/nucleon; calculated breakup σ including relativistic corrections. 209Bi(6He, 6He), E=22.5 MeV; calculated σ with and without breakup effects, B(E1) strength distribution. Three- and four-body CDCC.
doi: 10.1088/1742-6596/312/4/082008
2011OH05 J.Korean Phys.Soc. 59, 1817s (2011) A.Ohrn, C.Gustavsson, M.Blann, V.Blideanu, J.Blomgren, S.Chiba, H.Duarte, F.Haddad, C.Kalbach, J.Klug, A.Koning, C.Le brun, C.Lebrun, F.R.Lecolley, X.Ledoux, N.Marie-noury, P.Mermod, L.Nilsson, M.Osterlund, S.Pomp, A.Prokofiev, U.Tippawan, Y.Watanabe Measurements of Inelastic Neutron Scattering at 96 MeV from Carbon, Iron, Yttrium and Lead NUCLEAR REACTIONS 12C, 56Fe, 89Y, 208Pb(n, n'x), E=96 MeV; measured En, In(θ) using SCANDAL (SCAttered Nucleon Detection AssembLy); deduced σ(E, θ), σ(θ); calculated σ(E, θ), σ(θ) using TALYS, QMD, PRECO. Compared with UCLA data at 65 MeV.
doi: 10.3938/jkps.59.1817
2011SH01 J.Nucl.Sci.Technol.(Tokyo) 48, 1 (2011) K.Shibata, O.Iwamoto, T.Nakagawa, N.Iwamoto, A.Ichihara, s.Kunieda, S.Chiba, K.Furutaka, N.Otuka, T.Ohsawa, T.Murata, H.Matsunobu, A.Zukeran, S.Kamada, J.-i.Katakura JENDL-4.0: A New Library for Nuclear Science and Engineering
doi: 10.3327/jnst.48.1
2011SH34 J.Korean Phys.Soc. 59, 1046s (2011) K.Shibata, O.Iwamoto, T.Nakagawa, N.Iwamoto, A.Ichihara, S.Kunieda, S.Chiba, J.Katakura, N.Otuka JENDL-4.0: A New Library for Innovative Nuclear Energy Systems COMPILATION Z=89-100(n, f), (n, 2n), E=thermal-2.25 keV; compiled, evaluated σ, fission products σ for (n, 2n), (n, γ). 1,2H, 9Be, 10B, C, 14N, 16O, Si, Ca, Ti, 50,51V, Cr, 55Mn, 56,57,59Fe, 59Ni, 169Tm, Yb, 174,176,177,178,179,180,181,182Hf, 180,182,183,184,186W, Os, 197Au, Pb, 209Bi(n, X), E not given; compiled, evaluated σ; deduced resolved resonance parameters, coupled channel optical model parameters. DWBA, statistical model codes POD, CCONE.
doi: 10.3938/jkps.59.1046
2011UT01 Phys.Rev. C 83, 021301 (2011) Multiparticle-multihole states around 16O and correlation-energy effect on the shell gap NUCLEAR STRUCTURE 12C, 15,16,17O, 20Ne, 52,60Fe, 55,56,57Ni; calculated cross shell correlation energies. 16,18,20O, 20Ne; calculated first three 0+ states. Shell-model calculation in the full p-sd model space using PSDWBT and GXPF1A interactions.
doi: 10.1103/PhysRevC.83.021301
2011WA32 J.Korean Phys.Soc. 59, 1040s (2011) Y.Watanabe, K.Kosako, S.Kunieda, S.Chiba, R.Fujimoto, H.Harada, M.Kawai, F.Maekawa, T.Murata, H.Nakashima, K.Niita, N.Shigyo, S.Shimakawa, N.Yamano, T.Fukahori Status of JENDL High Energy File COMPILATION Z=1-95(n, X), (p, X), E=0-3 GeV; compiled, evaluated σ, dσ.
doi: 10.3938/jkps.59.1040
2010CH08 Phys.Rev. C 81, 044604 (2010) Verification of the surrogate ratio method NUCLEAR REACTIONS 197Au, 193Ir, 236,238U(n, γ), E<5 MeV; calculated fission and capture probabilities for positive and negative parity states in final nuclei. Verification of surrogate ratio method.
doi: 10.1103/PhysRevC.81.044604
2010CH40 Phys.Rev. C 82, 035504 (2010) M.-K.Cheoun, E.Ha, T.Hayakawa, T.Kajino, S.Chiba Neutrino reactions on 138La and 180Ta via charged and neutral currents by the quasiparticle random-phase approximation NUCLEAR REACTIONS 139La, 181Ta(ν, ν'), 138Ba(ν, e)138La, 180Hf(ν, e)180Ta, E=0-80 MeV; calculated σ by neutral and charged current reactions using standard quasi-particle random phase approximation (QRPA) with neutron-proton pairing and neutron-neutron and proton-proton pairing correlations. Astrophysical relevance. RADIOACTIVITY 138Ba, 180Hf(β-); calculated Gamow-Teller strength distribution B(GT) using QRPA.
doi: 10.1103/PhysRevC.82.035504
2010HA13 Phys.Rev. C 81, 052801 (2010) T.Hayakawa, T.Kajino, S.Chiba, G.J.Mathews New estimate for the time-dependent thermal nucleosynthesis of 180Tam NUCLEAR STRUCTURE 180Ta, 180mTa; calculated time-dependent production and transition widths of 180gTa 180mTa in ν and γ processes in supernovae. Comparison with production of 138La in ν process.
doi: 10.1103/PhysRevC.81.052801
2010HA27 Phys.Rev. C 82, 058801 (2010) T.Hayakawa, P.Mohr, T.Kajino, S.Chiba, G.J.Mathews Reanalysis of the (J=5) state at 592 keV in 180Ta and its role in the υ-process nucleosynthesis of 180Ta in supernovae NUCLEAR STRUCTURE 180mTa; analyzed production and freeze out of 180mTa through the influence of a spin 5 state at 592 keV. Implication for coproduction by neutrino nucleosynthesis with an electron neutrino temperature of kT AP 4 MeV. 180Ta; discussed low-K and high-K rotational band structures; deduced astrophysical reaction rates.
doi: 10.1103/PhysRevC.82.058801
2010MA46 Nucl.Phys. A834, 561c (2010) T.Maruyama, T.Tatsumi, S.Chiba Liquid-gas phase transition in asymmetric nuclear matter at finite temperature
doi: 10.1016/j.nuclphysa.2010.01.091
2009HA48 Astrophys.J. 707, 859 (2009) T.Hayakawa, T.Shizuma, S.Chiba, T.Kajino, Y.Hatsukawa, N.Iwamoto, N.Shinohara, H.Harada Neutron Capture Cross Section to 113Cd Isomer and s-Process Contribution to Rare p-Nuclide 115Sn NUCLEAR REACTIONS 112Cd(n, γ), E thermal; measured reaction products, Eγ, Iγ; deduced isomeric state s, resonance integral. Comparison with JENDL-3.3 evaluated nuclear data library, Hauser-Feshbach statistical model calculations.
doi: 10.1088/0004-637X/707/2/859
2009IW02 J.Nucl.Sci.Technol.(Tokyo) 46, 510 (2009) O.Iwamoto, T.Nakagawa, N.Otuka, S.Chiba, K.Okumura, G.Chiba, T.Ohsawa, K.Furutaka JENDL Actinoid File 2008
doi: 10.3327/jnst.46.510
2009KU13 J.Nucl.Sci.Technol.(Tokyo) 46, 914 (2009) S.Kunieda, S.Chiba, K.Shibata, A.Ichihara, O.Iwamoto, N.Iwamoto, T.Fukahori, E.Sh.Sukhovitskii Extensive Study of the Soft-Rotator Model Hamiltonian Parameters for Medium and Heavy Even-Even Nuclei NUCLEAR STRUCTURE 56,58Fe, 60,62,64Ni, 64,66,68,70Zn, 70,72,74,76Ge, 74,76,78,80,82Se, 86Sr, 96,98,100Mo, 102Ru, 104,106,108,110Pd, 106,108,110,112,114,116Cd, 116,118,120,122,124Sn, 122,124,126,128,130Te, 144,150Nd, 148,150,152,154Sm, 160Gd, 164Dy, 166,168Er, 174,176Yb, 178,180Hf, 182,184W, 192Os, 194Pt, 232Th, 238U; calculated excitation energy levels, J, π, quadrupole deformation parameters, B(E2), B(E3); deduced shell structure effects, agreement with mass-model results. Comparison with experimental results, SRM-CC analysis. NUCLEAR REACTIONS 56,58Fe, 60,62,64Ni, 64,66,68,70Zn, 70,72,74,76Ge, 74,76,78,80,82Se, 86Sr, 96,98,100Mo, 102Ru, 104,106,108,110Pd, 106,108,110,112,114,116Cd, 116,118,120,122,124Sn, 122,124,126,128,130Te, 144,150Nd, 148,150,152,154Sm, 160Gd, 164Dy, 166,168Er, 174,176Yb, 178,180Hf, 182,184W, 192Os, 194Pt, 232Th, 238U(p, p'), E = 22.3, 65 MeV; calculated inelastic proton σ(θ). Coupled-channel optical model analysis.
doi: 10.3327/jnst.46.914
2009LE20 Phys.Rev. C 79, 064612 (2009) J.-Y.Lee, I.Hahn, Y.Kim, S.-W.Hong, S.Chiba, E.Sh.Soukhovitskii Optical potentials for nuclear level structures and nucleon interactions data of tin isotopes based on the soft-rotator model NUCLEAR STRUCTURE 116,118,120,122Sn; calculated levels, J, π and deformation parameters based on the soft rotor model. Comparison with experimental data. NUCLEAR REACTIONS 116,118,120,122Sn(n, n), (n, n'), E=9.95-24 MeV; 116,118,120,122Sn(p, p), (p, p'), E=9.7-156.0 MeV; analyzed σ, σ(θ), optical potential parameters using coupled-channels optical-model calculations. 120Sn(n, X), E=0.1-200 MeV; 120Sn(p, X), E=10-200 MeV; calculated total σ. Comparison with experimental data.
doi: 10.1103/PhysRevC.79.064612
2009MI28 Nucl.Phys. A831, 150 (2009) Fission of heavy Λ hypernuclei with the Skyrme-Hartree-Fock approach NUCLEAR STRUCTURE 239U; calculated fission barrier height, single particle levels and associated parameters for bound hypernucleus using Skyrme-Hartree-Fock-BCS method. Comparison with 238U.
doi: 10.1016/j.nuclphysa.2009.09.063
2008CA32 J.Nucl.Sci.Technol.(Tokyo) 45, 333 (2008) R.Capote, S.Chiba, E.Sh.Soukhovitskii, J.M.Quesada, E.Bauge A Global Dispersive Coupled-Channel Optical Model Potential for Actinides
doi: 10.1080/18811248.2008.9711442
2008CH05 Phys.Rev. C 77, 015809 (2008) S.Chiba, H.Koura, T.Hayakawa, T.Maruyama, T.Kawano, T.Kajino Direct and semi-direct capture in low-energy (n, γ) reactions of neutron-rich tin isotopes and its implications for r-process nucleosynthesis NUCLEAR REACTIONS 16O(n, γ), E=0.01-10 MeV; 124,126,128,130,134,136,138Sn(n, γ), E=30 keV; 122Sn(n, γ), E=1 keV-20 MeV; 208Pb(n, γ), E=0-20 MeV; calculated neutron capture cross sections. 132Sn(n, γ), E=1 keV-20 MeV; calculated neutron capture cross sections, reaction rates. 132,133Sn; calculated levels, J, π, compared with experiment.
doi: 10.1103/PhysRevC.77.015809
2008HA21 Phys.Rev. C 77, 068801 (2008) T.Hayakawa, T.Shizuma, S.Miyamoto, S.Amano, K.Horikawa, K.Ishihara, M.Mori, K.Kawase, M.Kando, N.Kikuzawa, S.Chiba, T.Mochizuki, T.Kajino, M.Fujiwara Half-life of the 164Ho by the (γ, n) reaction from laser Compton scattering gamma rays at the electron storage ring NewSUBARU NUCLEAR REACTIONS 165Ho(γ, n), E=3.3-16.7 MeV; measured Eγ, Iγ, half-life; calculated σ. 164Ho; deduced levels, J, π. RADIOACTIVITY 164Ho(β+), (β-); measured Eγ, Iγ. 164Dy, 164Er; deduced levels, J, π.
doi: 10.1103/PhysRevC.77.068801
2008IW05 Nucl.Data Sheets 109, 2885 (2008) O.Iwamoto, T.Nakagawa, N.Otuka, S.Chiba, K.Okumura, G.Chiba JENDL Actinoid File 2008 and Plan of Covariance Evaluation NUCLEAR REACTIONS 242Am(n, f), E < 50 MeV; analyzed cross sections.
doi: 10.1016/j.nds.2008.11.028
2008YE02 Phys.Rev. C 78, 024611 (2008) T.Ye, Y.Watanabe, K.Ogata, S.Chiba Analysis of deuteron elastic scattering from 6, 7Li using the continuum discretized coupled channels method NUCLEAR REACTIONS 6,7Li(d, d), E=10-50 MeV; calculated phenomenological optical potentials, σ(θ). 6,7Li(p, p), (p, X), (n, n), (n, X), (d, d), E=5-50 MeV; analyzed angular distributions, σ(θ). Continuum discretized coupled channel calculations. Comparison with experimental data.
doi: 10.1103/PhysRevC.78.024611
2007BO19 Phys.Rev. C 75, 054618 (2007) L.Bonneau, T.Kawano, T.Watanabe, S.Chiba Nucleon direct-semidirect radiative capture with Skyrme-Hartree-Fock-BCS bound states NUCLEAR REACTIONS 122Sn, 132Sn, 208Pb, 238U(n, γ), E< 20MeV; calculated direct-semidirect capture cross sections by calculating a transition amplitude to the Hartree-Fock-BCS bound states. Compared results to available data.
doi: 10.1103/PhysRevC.75.054618
2007KU14 J.Nucl.Sci.Technol.(Tokyo) 44, 838 (2007) S.Kunieda, S.Chiba, K.Shibata, A.Ichihara, E.Sh.Sukhovitskii Coupled-channels Optical Model Analyses of Nucleon-induced Reactions for Medium and Heavy Nuclei in the Energy Region from 1keV to 200 MeV NUCLEAR REACTIONS Fe, Ni, Cu, Y, Zr, Nb, Mo, Sn, W, Au, Pb, Bi, Th, U(n, X), (p, X), E=1 keV - 200 MeV; analyzed cross sections using coupled channel method.
doi: 10.1080/18811248.2007.9711321
2007NI09 Nucl.Phys. A790, 277c (2007) S.Nishinohara, S.Chiba, S.Oryu The Coulomb scattering in momentum space for few-body systems NUCLEAR REACTIONS 1H(p, X), E(cm)≈0-200 MeV; calculated Coulomb phase shift.
doi: 10.1016/j.nuclphysa.2007.03.044
2007OK01 Phys.Rev. C 75, 034616 (2007) N.T.Okumusoglu, F.Korkmaz Gorur, J.Birchall, E.Sh.Soukhovitskii, R.Capote, J.M.Quesada, S.Chiba Angular distributions of protons scattered by 40Ar nuclei with excitation of the 2+(1.46 MeV) and 3-(3.68 MeV) collective levels for incident energies of 25.1, 32.5, and 40.7 MeV NUCLEAR REACTIONS 40Ar(p, p), (p, p'), E=25.1, 32.5, 40.7 MeV; measured σ(E, θ), Ay(θ). 40Ar deduced deformation parameters. Isospin dependent soft-rotator coupled-channels optical model analysis.
doi: 10.1103/PhysRevC.75.034616
2007OR02 Phys.Rev. C 75, 021001 (2007) S.Oryu, S.Nishinohara, N.Shiiki, S.Chiba Coulomb phase shift calculation in momentum space NUCLEAR REACTIONS 1H(p, X), E(cm) ≈ 0-200 MeV; calculated Coulomb phase shift.
doi: 10.1103/PhysRevC.75.021001
2007QU04 Phys.Rev. C 76, 057602 (2007) J.M.Quesada, R.Capote, E.Sh.Soukhovitskii, S.Chiba Approximate Lane consistency of the dispersive coupled-channels potential for actinides NUCLEAR REACTIONS 238U, 232Th(p, n), E=26 MeV; calculated angular distributions, compared with experimental data.
doi: 10.1103/PhysRevC.76.057602
2007SU08 Prog.Part.Nucl.Phys. 59, 486 (2007) T.Suzuki, S.Chiba, Ta.Yoshida, K.Higashiyama, M.Honma, T.Kajino, T.Otsuka Advances in shell-model calculations and neutrino-induced reactions NUCLEAR REACTIONS 12C(ν, ν'), (ν, e), (ν, ν'p), (ν, ν'n), 56Fe(ν, e), 58.60,62,64Ni(ν, e), E not given; calculated supernova neutrino induced cross sections using new shell model hamiltonian.
doi: 10.1016/j.ppnp.2007.01.013
2006EN01 Prog.Theor.Phys.(Kyoto) 115, 337 (2006) T.Endo, T.Maruyama, S.Chiba, T.Tatsumi Charge Screening Effect in the Hadron-Quark Mixed Phase
doi: 10.1143/PTP.115.337
2006HA51 Phys.Rev.C 74, 065802 (2006) T.Hayakawa, S.Miyamoto, Y.Hayashi, K.Kawase, K.Horikawa, S.Chiba, K.Nakanishi, H.Hashimoto, T.Ohta, M.Kando, T.Mochizuki, T.Kajino, M.Fujiwara Half-life of 184Re populated by the (γ, n) reaction from laser Compton scattering γ rays at the electron storage ring NewSUBARU RADIOACTIVITY 184,184mRe(EC), (β+) [from 185Re(γ, n)]; measured Eγ, Iγ, T1/2. 184W deduced transitions. NUCLEAR REACTIONS 185Re(γ, n), E ≈ 2-20 MeV; measured β-delayed Eγ, Iγ; deduced isomer yield ratio.
doi: 10.1103/PhysRevC.74.065802
2006KA15 J.Nucl.Sci.Technol.(Tokyo) 43, 1 (2006) Phenomenological Nuclear Level Densities using the KTUY05 Nuclear Mass Formula for Applications Off-Stability NUCLEAR STRUCTURE 28Si, 56Fe, 93Nb, 132Sn, 139La, 158Gd, 204Os, 209Bi; calculated level densities. Phenomenological model.
doi: 10.1080/18811248.2006.9711062
2006MA19 Phys.Rev. C 73, 035802 (2006) T.Maruyama, T.Tatsumi, D.N.Voskresensky, T.Tanigawa, T.Endo, S.Chiba Finite size effects on kaonic "pasta" structures
doi: 10.1103/PhysRevC.73.035802
2006MA40 Phys.Rev. C 74, 014315 (2006) Nuclear electromagnetic current in the relativistic approach with the momentum-dependent self-energies
doi: 10.1103/PhysRevC.74.014315
2006SU15 Phys.Rev. C 74, 034307 (2006) T.Suzuki, S.Chiba, T.Yoshida, T.Kajino, T.Otsuka Neutrino-nucleus reactions based on new shell model Hamiltonians NUCLEAR REACTIONS 12C(ν, ν'), (ν, e), E=spectrum; calculated σ for decay-at-rest neutrinos. 4He, 12C(ν, ν'), (ν, e), E=spectrum; 12C(ν, ν'n), (ν, ν'p), (ν, ν'α), E=spectrum; calculated σ, branching ratios for supernova neutrinos. Shell model, implications for isotope production in supernovae discussed.
doi: 10.1103/PhysRevC.74.034307
2005AK05 Nucl.Phys. A749, 329c (2005) Y.Akimura, T.Maruyama, N.Yoshinaga, S.Chiba Stability and structure of quark matter in a molecular dynamics framework
doi: 10.1016/j.nuclphysa.2004.12.062
2005AK11 Eur.Phys.J. A 25, 405 (2005) Y.Akimura, T.Maruyama, N.Yoshinaga, S.Chiba Molecular dynamics simulation for the baryon-quark phase transition at finite baryon density
doi: 10.1140/epja/i2005-10143-x
2005CA56 Phys.Rev. C 72, 064610 (2005) R.Capote, E.Sh.Soukhovitskii, J.M.Quesada, S.Chiba Is a global coupled-channel dispersive optical model potential for actinides feasible? NUCLEAR REACTIONS 232Th, 238U(n, X), (p, X), E=0.001-200 MeV; analyzed data; deduced parameters. Dispersive coupled-channels optical model.
doi: 10.1103/PhysRevC.72.064610
2005EN02 Nucl.Phys. A749, 333c (2005) T.Endo, T.Maruyama, S.Chiba, T.Tatsumi Numerical study of the hadron-quark mixed phase
doi: 10.1016/j.nuclphysa.2004.12.063
2005HA60 Astrophys.J. 628, 533 (2005) T.Hayakawa, T.Shizuma, T.Kajino, S.Chiba, N.Shinohara, T.Nakagawa, T.Arima New s-Process Path and Its Implications for a 187Re-187Os Nucleo-Cosmochronometer NUCLEAR REACTIONS 185Re(n, γ), E=thermal; measured isomer yield ratio. Activation technique, astrophysical implications discussed.
doi: 10.1086/430198
2005MA15 Nucl.Phys. A749, 186c (2005) T.Maruyama, T.Tatsumi, D.N.Voskresensky, T.Tanigawa, S.Chiba Structured mixed phase at charged kaon condensation
doi: 10.1016/j.nuclphysa.2004.12.031
2005MA56 Phys.Rev. C 72, 015802 (2005) T.Maruyama, T.Tatsumi, D.N.Voskresensky, T.Tanigawa, S.Chiba Nuclear "pasta" structures and the charge screening effect
doi: 10.1103/PhysRevC.72.015802
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