NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = T.Hayakawa Found 152 matches. Showing 1 to 100. [Next]2024SH01 Phys.Rev. C 109, 014302 (2024) T.Shizuma, M.Omer, T.Hayakawa, F.Minato, S.Matsuba, S.Miyamoto, N.Shimizu, Y.Utsuno Parity assignment for low-lying dipole states in 58Ni
doi: 10.1103/PhysRevC.109.014302
2023HA39 Commun. Phys. 6, 299 (2023) T.Hayakawa, T.Shizuma, T.Iizuka Half-life of the nuclear cosmochronometer 176Lu measured with a windowless 4π solid angle scintillation detector RADIOACTIVITY 176Lu(β-), (EC); measured decay products, Eγ, Iγ; deduced T1/2, decay constant. Comparison with available data. A windowless 4π solid angle detector based upon bismuth germanate (BGO) scintillation crystals, where a natural Lu sample is located inside of the detector.
doi: 10.1038/s42005-023-01406-7
2023YO01 Eur.Phys.J. A 59, 191 (2023) A.Yogo, Y.Arikawa, Y.Abe, S.R.Mirfayzi, T.Hayakawa, K.Mima, R.Kodama Advances in laser-driven neutron sources and applications
doi: 10.1140/epja/s10050-023-01083-8
2022KO31 Astrophys.J. 937, 116 (2022) H.Ko, D.Jang, M.-K.Cheoun, M.Kusakabe, H.Sasaki, X.Yao, T.Kajino, T.Hayakawa, M.Ono, T.Kawano, G.J.Mathews Comprehensive Analysis of the Neutrino Process in Core-collapsing Supernovae ATOMIC MASSES 7Li, 7Be, 11B, 11C, 92Nb, 98Tc, 138La, 180Ta; analyzed available data; deduced abundances for the neutrino flavor change effects due to neutrino self-interaction and shock wave propagation, as well as the matter effects on the neutrino process in core-collapsing supernovae (CCSNe).
doi: 10.3847/1538-4357/ac88cd
2022MO16 J.Phys.(London) G49, 065103 (2022) T.Mori, A.Yogo, T.Hayakawa, S.R.Mirfayzi, Z.Lan, T.Wei, Y.Abe, Y.Arikawa, M.Nakai, K.Mima, H.Nishimura, S.Fujioka, R.Kodama Thermal neutron fluence measurement using a cadmium differential method at the laser-driven neutron source NUCLEAR REACTIONS 197Au, 59Co, 55Mn(n, γ), (n, 2n), 180Hf(n, γ), (n, n'), 176Hf(n, 2n), E thermal; measured reaction products, Eγ, Iγ; deduced γ-ray energies, thermal neutron fluence. The LFEX laser at the ILE in Osaka U niversity.
doi: 10.1088/1361-6471/ac6272
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
2021MO19 Phys.Rev. C 104, 015808 (2021) T.Mori, A.Yogo, T.Hayakawa, S.R.Mirfayzi, Z.Lan, Y.Abe, Y.Arikawa, D.Golovin, T.Wei, Y.Honoki, M.Nakai, K.Mima, H.Nishimura, S.Fujioka, R.Kodama Direct evaluation of high neutron density environment using (n, 2n) reaction induced by laser-driven neutron source NUCLEAR REACTIONS 55Mn, 59Co, Hf, 197Au(n, 2n), (n, γ)54Mn/56Mn/56Co/58Co/175Hf/180mHf/181Hf/196Au/198Au, E=8-20 MeV neutrons from 9Be(p, n), E=30 MeV and 9Be(d, n), E=20 MeV reactions and laser-driven neutron source (LDNS) at the fast ignition experiment (LFEX) laser system at the ILE, Osaka University; measured Eγ, Iγ; deduced production reaction rates for isotopes and isomer, σ(E) for (n, 2n) reaction; evaluated neutron fluxes from (n, 2n) reaction using the activation method and the TOF. 196,198Au; measured half-lives of decays of ground states from γ-decay curves. Relevance to evaluation of high-density neutrons in stellar environments and nucleosynthesis by r-process.
doi: 10.1103/PhysRevC.104.015808
2021SH08 Phys.Rev. C 103, 024309 (2021) T.Shizuma, F.Minato, M.Omer, T.Hayakawa, H.Ohgaki, S.Miyamoto Low-lying electric and magnetic dipole strengths in 207Pb NUCLEAR REACTIONS 207Pb(polarized γ, γ'), E(maximum)=5.8, 6.3, 6.8 MeV quasimonochromatic photon beam generated by laser Compton scattering (LCS) with relativistic electrons circulating in the NewSUBARU storage ring; measured Eγ, Iγ at azimuthal angles of 0° and 90° relative to the polarization plane, azimuthal intensity ratios using two HPGe detectors at the LASTI of the University of Hyogo. 207Pb; deduced levels, J, π, branching ratios Γ0/Γ, integrated scattering cross sections, gΓ02/Γ, B(E1)(up), B(M1)(up), E1 and M1 photoabsorption cross sections, coherent excitations of spin-flip 1p-1h states in the 206Pb core. Nuclear resonance fluorescence (NRF) study. Comparison with particle-vibration coupling (PVC), with the quasiparticle random-phase approximation (QRPA) calculations using SkM*, SGII, and SkP interactions, and with previous experimental results.
doi: 10.1103/PhysRevC.103.024309
2020IC01 Prog.Theor.Exp.Phys. 2020, 123D01 (2020) Y.Ichikawa, J.Yamagata-Sekihara, J.K.Ahn, Y.Akazawa, K.Aoki, E.Botta, H.Ekawa, P.Evtoukhovitch, A.Feliciello, M.Fujita, T.Gogami, S.Hasegawa, T.Hasegawa, S.Hayakawa, T.Hayakawa, S.Hirenzaki, R.Honda, K.Hosomi, K.Imai, W.Jung, S.Kanatsuki, S.H.Kim, S.Kinbara, K.Kobayashi, J.Lee, S.Marcello, K.Miwa, T.Moon, T.Nagae, Y.Nakada, M.Nakagawa, T.Nanamura, M.Naruki, A.Sakaguchi, H.Sako, S.Sato, Y.Sasaki, K.Shirotori, H.Sugimura, T.Takahashi, H.Tamura, K.Tanida, Z.Tsamalaidze, M.Ukai, T.O.Yamamoto An event excess observed in the deeply bound region of the 12C (K-, p) missing-mass spectrum NUCLEAR REACTIONS 12C(K-, p), E ∼ 1.8 GeV; measured reaction products, Ep, Ip; deduced the inclusive missing-mass spectrum. Comparison with the Green's function method calculations.
doi: 10.1093/ptep/ptaa139
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
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
2017FU06 Physics of Part.and Nuclei 48, 124 (2017) M.Fujiwara, K.Nakai, N.Takahashi, T.Hayakawa, T.Shizuma, S.Miyamoto, G.T.Fan, A.Takemoto, M.Yamaguchi, M.Nishimura Production of medical 99mTc isotope via photonuclear reaction
doi: 10.1134/S1063779617010075
2017SH24 J.Phys.(London) G44, 09LT01 (2017) J.W.Shin, M.-K.Cheoun, T.Kajin, T.Hayakawa A new scheme for short baseline electron antineutrino disappearance study RADIOACTIVITY 8Li(β-) [from 7Li(n, γ), E ∼ 2 MeV]; analyzed available data; deduced antineutrino flux.
doi: 10.1088/1361-6471/aa809e
2017SH41 Phys.Rev. C 96, 044316 (2017) T.Shizuma, T.Hayakawa, I.Daito, H.Ohgaki, S.Miyamoto, F.Minato Low-lying dipole strength in 52Cr NUCLEAR REACTIONS 52Cr(polarized γ, γ'), E(max)=8.8, 9.4, 10.1, 11.0, 12.1 MeV quasimonochromatic, linearly polarized photon beam from NewSUBARU synchrotron radiation facility at the University of Hyogo; measured Eγ, Iγ, γγ(θ), polarization asymmetry, multipolarities. 52Cr; deduced levels, J, π, Γ02/Γ, B(E1), B(M1), cumulative M1 and E1 strengths, configurations. Comparison with previous experimental results, and with RPA and SRPA calculations using SGII and SGII+Te1 interactions.
doi: 10.1103/PhysRevC.96.044316
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
2015NE18 J.Nucl.Sci.Technol.(Tokyo) 52, 811 (2015) H.Negm, H.Ohgaki, I.Daito, T.Hayakawa, H.Zen, T.Kii, K.Masuda, T.Hori, R.Hajima, T.Shizuma, N.Kikuzawa Reaction-yield dependence of the (γ, γ') reaction of 238U on the target thickness NUCLEAR REACTIONS 238U(γ, γ'), E=2.475 MeV; measured reaction products, Eγ, Iγ; deduced nuclear resonance fluorescence (NRF) yield as a function of the target thickness, σ.
doi: 10.1080/00223131.2014.980348
2015SU09 Phys.Rev. C 92, 024309 (2015) M.Sugawara, T.Hayakawa, M.Oshima, Y.Toh, A.Osa, M.Matsuda, T.Shizuma, Y.Hatsukawa, H.Kusakari, T.Morikawa, Z.G.Gan, T.Czosnyka Lifetime measurement for the possible antimagnetic rotation band in 101Pd NUCLEAR REACTIONS 68Zn(37Cl, 3np), E=125 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by Doppler broadened line shape method using GEMINI array at JAEA accelerator facility. 101Pd; deduced high-spin levels, B(E2) for transitions in νh11/2 band, moment of inertia plot, configuration, possible antimagnetic rotational band. Comparison with semiclassical particle-rotor model calculations, and with systematics of B(E2) values for bands in 100,102,104Pd, 106,108,110Cd.
doi: 10.1103/PhysRevC.92.024309
2014AN13 Phys.Rev. C 90, 054315 (2014) C.T.Angell, R.Hajima, T.Hayakawa, T.Shizuma, H.J.Karwowski, J.Silano Validating resonance properties using nuclear resonance fluorescence NUCLEAR REACTIONS 27Al(polarized γ, γ'), E=2.6-3.2 MeV; measured Eγ, Iγ, integrated cross section for the 3.004-MeV level in 27Al at HIγS-TUNL facility; 27Al; deduced level spin, validation procedure of spectroscopic properties of a resonance.
doi: 10.1103/PhysRevC.90.054315
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
2014KO41 Eur.Phys.J. A 50, 136 (2014) T.Komatsubara, S.Kubono, T.Hayakawa, T.Shizuma, A.Ozawa, Y.Ito, Y.Ishibashi, T.Moriguchi, H.Yamaguchi, D.Kahl, S.Hayakawa, D.N.Binh, A.A.Chen, J.Chen, K.Setoodehnia, T.Kajino Excited states above the proton threshold in 26Si
doi: 10.1140/epja/i2014-14136-4
2014MC08 Nucl.Data Sheets 120, 88 (2014) E.Mcneice, K.Setoodehnia, B.Singh, Y.Abe, D.N.Binh, A.A.Chen, J.Chen, S.Cherubini, S.Fukuoka, T.Hashimoto, T.Hayakawa, Y.Ishibashi, Y.Ito, D.Kahl, T.Komatsubara, S.Kubono, T.Moriguchi, D.Nagae, R.Nishikiori, T.Niwa, A.Ozawa, T.Shizuma, H.Suzuki, H.Yamaguchi, T.Yuasa In-beam γ-ray Spectroscopy of 30P via the 28Si(3He, pγ)30P Reaction NUCLEAR REACTIONS 28Si(3He, p), E=9 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced level structure, J, π, resonance states, γ-γ directional correlation of oriented nuclei. Comparison with available data.
doi: 10.1016/j.nds.2014.07.014
2013SE08 Phys.Rev. C 87, 065801 (2013) K.Setoodehnia, A.A.Chen, D.Kahl, T.Komatsubara, J.Jose, R.Longland, Y.Abe, D.N.Binh, J.Chen, S.Cherubini, J.A.Clark, C.M.Deibel, S.Fukuoka, T.Hashimoto, T.Hayakawa, J.Hendriks, Y.Ishibashi, Y.Ito, S.Kubono, W.N.Lennard, T.Moriguchi, D.Nagae, R.Nishikiori, T.Niwa, A.Ozawa, P.D.Parker, D.Seiler, T.Shizuma, H.Suzuki, C.Wrede, H.Yamaguchi, T.Yuasa Nuclear structure of 30S and its implications for nucleosynthesis in classical novae NUCLEAR REACTIONS 32S(p, t), E=34.5 MeV; measured triton spectra, σ(θ) using Enge split-pole magnetic spectrograph at WNSL, Yale facility. 28Si(3He, n), E=9 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ)(DCO) at UTTAC facility. 30S; deduced levels, resonances, J, π, multipolarity, σ/J, mixing ratio, branching ratios, proton and gamma widths, resonance strengths. DWBA and coupled reaction channel analyses of σ(θ) data in (p, t). 29P(p, γ)30S, at T=0.01-1.5 GK; deduced astrophysical reaction rates, nova isotopic abundances of Si to Ca mass region isotopes using 1D hydrodynamic model.
doi: 10.1103/PhysRevC.87.065801
2013SH08 Phys.Rev. C 87, 024301 (2013) T.Shizuma, T.Hayakawa, H.Ohgaki, H.Toyokawa, T.Komatsubara, N.Kikuzawa, T.Inakura, M.Honma, H.Nakada Dipole strength distribution in 56Fe NUCLEAR REACTIONS 56Fe(polarized γ, γ'), E=7.6, 8.6, 10.0 MeV; measured Eγ, Iγ, widths, azimuthal asymmetry at TERAS facility in Tsukuba. 56Fe; deduced levels, PDR, J, π, multipolarity, B(M1), B(E1); summed dipole strengths. Comparison with random-phase approximation (RPA) with the Skyrme interaction, and shell-model calculations in the pf shell using the GXPF1J and KB3G effective interactions.
doi: 10.1103/PhysRevC.87.024301
2013SU15 Phys.Rev. C 87, 064319 (2013) M.Sugawara, T.Hayakawa, M.Oshima, Y.Toh, A.Osa, M.Matsuda, T.Shizuma, Y.Hatsukawa, H.Kusakari, T.Morikawa, Z.G.Gan, T.Czosnyka Possible band termination in 99Rh NUCLEAR REACTIONS 68Zn(37Cl, 2nα), E=125 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO) using GEMINI array at JAEA facility. 99Rh; deduced high-spin levels, J, π, bands, multipolarity, B(M1)/B(E2), configurations, alignments, E-GOS curves, possible band termination. 68Zn, 101,102Ag, 100,101,102Pd; observed prompt γ rays. Comparison with band structures of neighboring nuclides of 101,103Rh, 98,99,100Ru, 95,96,97Tc.
doi: 10.1103/PhysRevC.87.064319
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
2012OS04 J.Phys.Soc.Jpn. 81, 084201 (2012) M.Oshima, T.Kin, S.Nakamura, M.Honma, F.Minato, T.Hayakawa, K.Y.Hara, A.Kimura, M.Koizumi, H.Harada, J.Goto, Y.Murakami Spectroscopic Study of 63Ni via Cold Neutron Capture Reaction: I. Nuclear Structure of 63Ni NUCLEAR REACTIONS 62Ni(n, γ), E low; measured reaction products, Eγ, Iγ; deduced energies, J, π, level scheme. Comparison with microscopic calculations.
doi: 10.1143/JPSJ.81.084201
2012SU18 Phys.Rev. C 86, 034326 (2012) M.Sugawara, T.Hayakawa, M.Oshima, Y.Toh, A.Osa, M.Matsuda, T.Shizuma, Y.Hatsukawa, H.Kusakari, T.Morikawa, Z.G.Gan, T.Czosnyka Possible antimagnetic rotational band and neutron alignment in 101Pd NUCLEAR REACTIONS 68Zn(37Cl, 3np), E=125 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO) using GEMINI array at JAEA facility. 101Pd; deduced levels, J, π, bands, multipolarity, B(M1)/B(E2) and B(E1)/B(E2) ratios, alignments, configurations, anti-magnetic rotational (AMR) band. 100Pd; measured Eγ; deduced alignment, configuration for a band. Comparison with particle-rotor model calculations. Systematics of alignments and band configurations in 105,106,108,109Cd nuclei.
doi: 10.1103/PhysRevC.86.034326
2011SE03 Phys.Rev. C 83, 018803 (2011) K.Setoodehnia, A.A.Chen, T.Komatsubara, S.Kubono, D.N.Binh, J.F.Carpino, J.Chen, T.Hashimoto, T.Hayakawa, Y.Ishibashi, Y.Ito, D.Kahl, T.Moriguchi, H.Oishi, A.Ozawa, T.Shizuma, Y.Sugiyama, H.Yamaguchi Spins and parities of astrophysically important 30S states from 28Si(3He, nγ )30S NUCLEAR REACTIONS 28Si(3He, n), E=9 MeV; measured Eγ, Iγ, γγ-coin, natural Si target. 30S; deduced levels, J, π. Comparison with mirror nucleus 30Si. Astrophysical relevance to the reaction rates for 29P(p, γ).
doi: 10.1103/PhysRevC.83.018803
2011SH45 J.Phys.:Conf.Ser. 312, 092056 (2011) T.Shizuma, T.Hayakawa, H.Ohgaki, H.Toyokawa, T.Komatsubara, A.Tamii, H.Nakada Nuclear resonance fluorescence measurements by quasi-monochromatic linearly polarized photon beams NUCLEAR REACTIONS 208Pb(polarized γ, γ'), E=5.5, 6.1, 6.9, 7.4 MeV; measured Eγ, Iγ(θ) from inverse laser Compton scattering polarized γ using nuclear resonance fluorescence; deduced analyzing power, levels, J, π, decay width, reduced transition strength B(σλ), B(M1).
doi: 10.1088/1742-6596/312/9/092056
2011YO09 J.Korean Phys.Soc. 59, 1003s (2011) C.J.Yoon, H.Akikawa, K.Aoki, Y.Fukao, H.Funahashi, M.Hayata, K.Imai, K.Miwa, H.Okada, N.Saito, H.D.Sato, K.Shoji, H.Takahashi, K.Taketani, J.Asai, M.Kurosawa, M.Ieiri, T.Hayakawa, T.Kishimoto, A.Sato, Y.Shimizu, K.Yamamoto, T.Yoshida, T.Hibi, K.Nakazawa, J.K.Ahn, B.H.Choi, S.J.Kim, S.H.Kim, B.D.Park, I.G.Park, J.S.Song, C.S.Yoon, K.Tanida, A.Ohnishi, and the KEK-PS E522 Collaboration Probing ΛΛ Potential
doi: 10.3938/jkps.59.1003
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
2009HA14 Phys.Rev. C 79, 059802 (2009) T.Hayakawa, T.Shizuma, T.Kajino, K.Ogawa, H.Nakada Reply on "138La-138Ce-136Ce nuclear cosmochronometer of the supernova neutrino process"
doi: 10.1103/PhysRevC.79.059802
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
2009KI23 Nucl.Phys. A827, 321c (2009) T.Kishimoto, T.Hayakawa, S.Ajimura, F.Khanam, T.Itabashi, K.Matsuoka, S.Minami, Y.Mitoma, A.Sakaguchi, Y.Shimizu, K.Terai, R.E.Chrien, P.Pile, H.Noumi, M.Sekimoto, H.Takahashi, T.Fukuda, W.Imoto, Y.Mizoi Kaon-Nucleus Interaction Studied through the in-flight (K-, N) Reactions
doi: 10.1016/j.nuclphysa.2009.05.066
2009SH17 Eur.Phys.J. A 39, 263 (2009) T.Shizuma, T.Ishii, H.Makii, T.Hayakawa, M.Matsuda A 3-quasiparticle isomer in neutron-rich 183Ta NUCLEAR REACTIONS 181Ta(18O, 16O), E=180 MeV; measured Eγ, Iγ, γγ-coin, (particle)γ-coin, time difference spectrum. 183Ta; deduced levels, J, π and T1/2 of new isomer.
doi: 10.1140/epja/i2008-10730-3
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
2008HA20 Phys.Rev. C 77, 065802 (2008) T.Hayakawa, T.Shizuma, T.Kajino, K.Ogawa, H.Nakada 138La-138Ce-136Ce nuclear cosmochronometer of the supernova neutrino process NUCLEAR STRUCTURE 138La, 140Pr; calculated levels, J, π. Evaluated the 138La-138Ce-136Ce chain as a nuclear cosmochronometer. Comparison with experimental data.
doi: 10.1103/PhysRevC.77.065802
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
2008MA58 Chin.Phys.C 32, 31 (2008) L.Ma, X.-H.Zhou, M.Oshima, Y.Toh, Y.-H.Zhang, Y.-X.Guo, X.-G.Lei, M.Koizumi, A.Osa, T.Hayakawa, Y.Hatsukawa, T.Shizuma, M.Sugawara High-spin states in 190Pt NUCLEAR REACTIONS 176Yb(18O, 4n), E=88, 95 MeV; measured Eγ, Iγ, γγ-coin, DCO. 190Pt; deduced levels, J, π, bands, configurations.
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2008SH12 Phys.Rev. C 77, 047303 (2008) T.Shizuma, T.Ishii, H.Makii, T.Hayakawa, M.Matsuda, S.Shigematsu, E.Ideguchi, Y.Zheng, M.Liu, T.Morikawa, M.Oi One-quasiparticle bands in neutron-rich 187W NUCLEAR REACTIONS 186W(18O, 17O), E=180 MeV; measured Eγ, Iγ, γγ-coin. 187W; deduced levels, J, π, band structures and configurations. 16,17,18,19O; measured ion energy losses.
doi: 10.1103/PhysRevC.77.047303
2008SH23 Phys.Rev. C 78, 061303 (2008) T.Shizuma, T.Hayakawa, H.Ohgaki, H.Toyokawa, T.Komatsubara, N.Kikuzawa, A.Tamii, H.Nakada Fine structure of the magnetic-dipole-strength distribution in 208Pb NUCLEAR REACTIONS 208Pb(polarized γ, γ), E=7.0-7.4 MeV; measured Eγ, Iγ, angular distributions, azimuthal asymmetry, B(M1), B(E1), widths. 208Pb; deduced levels, J, π.
doi: 10.1103/PhysRevC.78.061303
2008UK01 Phys.Rev. C 77, 054315 (2008) M.Ukai, S.Ajimura, H.Akikawa, D.E.Alburger, A.Banu, R.E.Chrien, G.B.Franklin, J.Franz, O.Hashimoto, T.Hayakawa, H.Hotchi, K.Imai, T.Kishimoto, M.May, D.J.Millener, S.Minami, Y.Miura, T.Miyoshi, K.Mizunuma, T.Nagae, S.N.Nakamura, K.Nakazawa, Y.Okayasu, P.Pile, B.P.Quinn, A.Rusek, Y.Sato, R.Sutter, H.Takahashi, L.Tang, H.Tamura, K.Tanida, S.H.Zhou, for the E930('01) Collaboration γ-ray spectroscopy of 16ΛO and 15ΛN hypernuclei via the 16O(K-, π-γ) reaction NUCLEAR REACTIONS 16O(K-, π-γ), (K-, π-p), E=900 MeV/c; measured Eγ, Iγ, γγ-coin, angular distributions, B(M1), missing mass spectra. 16O, 15N; deduced levels, J, π of hypernuclei. Comparison with shell model calculations.
doi: 10.1103/PhysRevC.77.054315
2007KI10 Prog.Theor.Phys.(Kyoto) 118, 181 (2007) T.Kishimoto, T.Hayakawa, S.Ajimura, F.Khanam, T.Itabashi, K.Matsuoka, S.Minami, Y.Mitoma, A.Sakaguchi, Y.Shimizu, K.Terai, R.E.Chrien, P.Pile, H.Noumi, M.Sekimoto, H.Takahashi, T.Fukuda, W.Imoto, Y.Mizoi Kaon-Nucleus Interaction Studied through the In-Flight (K-, N) Reaction
doi: 10.1143/PTP.118.181
2007SH42 Eur.Phys.J. A 34, 1 (2007) T.Shizuma, T.Ishii, H.Makii, T.Hayakawa, S.Shigematsu, M.Matsuda, E.Ideguchi, Y.Zheng, M.Liu, T.Morikawa Evidence for a Kπ = 1/2+ isomer in neutron-rich 185Ta NUCLEAR REACTIONS 186W(18O, 19F), E=180 MeV; measured Eγ, Iγ, (particle)γ-coin, γγ-coin. 185Ta deduced levels, J, π.
doi: 10.1140/epja/i2007-10484-4
2007UK01 Eur.Phys.J. A 33, 247 (2007) M.Ukai, S.Ajimura, H.Akikawa, D.E.Alburger, A.Banu, R.E.Chrien, G.B.Franklin, J.Franz, O.Hashimoto, T.Hayakawa, H.Hotchi, K.Imai, T.Kishimoto, M.May, D.J.Millener, S.Minami, Y.Miura, T.Miyoshi, K.Mizunuma, T.Nagae, S.N.Nakamura, K.Nakazawa, Y.Okayasu, P.Pile, B.P.Quinn, A.Rusek, Y.Sato, R.Sutter, H.Takahashi, L.Tang, H.Tamura, K.Tanida, L.Yuan, S.H.Zhou Observation of the 7 MeV excited spin-flip and non-spin-flip partners in 16ΛO by γ-ray spectroscopy NUCLEAR REACTIONS 16O(K-, π-), E at 0.93 GeV/c; measured Eγ, Iγ from decaying hypernucleus. 16O deduced hypernucleus levels, J, π. Hyperball array.
doi: 10.1140/epja/i2007-10473-7
2007YO01 Phys.Rev. C 75, 022201 (2007) C.J.Yoon, H.Akikawa, K.Aoki, Y.Fukao, H.Funahashi, M.Hayata, K.Imai, K.Miwa, H.Okada, N.Saito, H.D.Sato, K.Shoji, H.Takahashi, K.Taketani, J.Asai, M.Kurosawa, M.Ieiri, T.Hayakawa, T.Kishimoto, A.Sato, Y.Shimizu, K.Yamamoto, T.Yoshida, T.Hibi, K.Nakazawa, J.K.Ahn, B.H.Choi, S.J.Kim, S.H.Kim, B.D.Park, I.G.Park, J.S.Song, C.S.Yoon, K.Tanida, A.Ohnishi, and the KEK-PS E522 Collaboration Search for the H-dibaryon resonance in 12C(K-, K+ΛΛX) NUCLEAR REACTIONS 12C(K-, K+X), E at 1.67 GeV/c; measured ΛΛ invariant mass spectra; deduced σ upper limit for H-dibaryon production.
doi: 10.1103/PhysRevC.75.022201
2006HA35 Astrophys.J. 648, L47 (2006) T.Hayakawa, N.Iwamoto, T.Kajino, T.Shizuma, H.Umeda, K.Nomoto Principle of universality of γ-process nucleosynthesis in core-collapse supernova explosions
doi: 10.1086/507703
2006HA38 Eur.Phys.J. A 27, Supplement 1, 123 (2006) T.Hayakawa, N.Iwamoto, T.Shizuma, T.Kajino, H.Umeda, K.Nomoto Evidence for p-process nucleosynthesis recorded at the Solar System abundances
doi: 10.1140/epja/i2006-08-017-6
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
2006MI08 Phys.Lett. B 635, 72 (2006) K.Miwa, J.K.Ahn, K.Aoki, B.Choi, Y.Fukao, H.Funahashi, T.Hayakawa, M.Hayata, T.Hibi, M.Ieiri, K.Imai, S.J.Kim, K.Nakazawa, H.Nishikawa, H.Okada, N.Saito, H.D.Sato, K.Shoji, H.Takahashi, K.Taketani, K.Yamamoto, C.J.Yoon Search for Θ+ via π- p → K- X reaction near production threshold NUCLEAR REACTIONS 1H(π-, K-X), E at 1.87, 1.92 GeV/c; measured particle mass vs momenta, missing mass spectra; deduced upper limit of pentaquark production σ. Comparison with theoretical limits.
doi: 10.1016/j.physletb.2006.02.048
2006SH23 Eur.Phys.J. A 30, 391 (2006) T.Shizuma, T.Ishii, H.Makii, T.Hayakawa, S.Shigematsu, M.Matsuda, E.Ideguchi, Y.Zheng, M.Liu, T.Morikawa, P.M.Walker, M.Oi Excited states in neutron-rich 188W produced by an 18O-induced 2-neutron transfer reaction NUCLEAR REACTIONS 186W(18O, 16O), E=180 MeV; measured Eγ, Iγ, (particle)γ-coin. 188W deduced levels, J, π, configurations. Level systematics in neighboring isotopes discussed.
doi: 10.1140/epja/i2006-10139-0
2006UK01 Phys.Rev. C 73, 012501 (2006) M.Ukai, S.Ajimura, H.Akikawa, D.E.Alburger, A.Banu, R.E.Chrien, G.B.Franklin, J.Franz, O.Hashimoto, T.Hayakawa, H.Hotchi, K.Imai, T.Kishimoto, M.May, D.J.Millener, S.Minami, Y.Miura, T.Miyoshi, K.Mizunuma, T.Nagae, S.N.Nakamura, K.Nakazawa, Y.Okayasu, P.Pile, B.P.Quinn, A.Rusek, Y.Sato, R.Sutter, H.Takahashi, L.Tang, H.Tamura, K.Tanida, L.Yuan, S.H.Zhou, and the E930('01) Collaboration Cascade γ decay in the 7ΛLi hypernucleus NUCLEAR REACTIONS 10B(K-, π-), E at 0.93 GeV/c; measured Eγ, Iγ, γγ-, (particle)γ-coin following hypernucleus creation and decay. 7Li deduced hypernucleus levels, J, π. Hyperball array.
doi: 10.1103/PhysRevC.73.012501
2006WA05 J.Phys.(London) G32, 283 (2006) S.-Y.Wang, T.Komatsubara, Y.-J.Ma, K.Furuno, Y.-H.Zhang, Y.Z.Liu, T.Hayakawa, J.Mukai, Y.Iwata, T.Morikawa, G.B.Hagemann, G.Sletten, J.Nyberg, D.Jerrestam, H.J.Jensen, J.Espino, J.Gascon, N.Gjorup, B.Cederwall, P.O.Tjom Band structures in 123I NUCLEAR REACTIONS 116Cd(14N, 3nα), E=65 MeV; measured Eγ, Iγ, γγ-coin. 123I deduced high-spin levels, J, π, configurations, B(M1)/B(E2). Nordball array.
doi: 10.1088/0954-3899/32/3/004
2005HA50 Nucl.Phys. A758, 525c (2005) T.Hayakawa, N.Iwamoto, T.Shizuma, T.Kajino, H.Umeda, K.Nomoto Scaling relations for the supernova γ-process and the 176Lu nuclear cosmochronometer
doi: 10.1016/j.nuclphysa.2005.05.095
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
2005KI11 Nucl.Phys. A754, 383c (2005) T.Kishimoto, T.Hayakawa, S.Ajimura, S.Minami, A.Sakaguchi, Y.Shimizu, R.E.Chrien, M.May, P.Pile, A.Rusek, R.Sutter, H.Noumi, H.Tamura, M.Ukai, Y.Miura, K.Tanida Kaonic nuclei probed by the in-flight (K-, n) reaction NUCLEAR REACTIONS 16O(K-, n), (K-, nX), E at 0.93 GeV/c; measured neutron spectra; deduced kaonic nuclei.
doi: 10.1016/j.nuclphysa.2005.03.019
2005NA38 At.Data Nucl.Data Tables 91, 77 (2005) T.Nakagawa, S.Chiba, T.Hayakawa, T.Kajino Maxwellian-average neutron-induced reaction cross sections and astrophysical reaction rates for kT = 1 keV to 1 MeV calculated from microscopic neutron cross section library JENDL-3.3 COMPILATION Z=1-96; A=1-247; compiled, analyzed Maxwellian averaged neutron capture σ, neutron-induced fission σ, astrophysical reaction rates. Other neutron-induced reactions discussed.
doi: 10.1016/j.adt.2005.08.002
2005SE19 Nucl.Phys. A758, 553c (2005) M.Segawa, Y.Nagai, T.Shima, H.Makii, K.Mishima, H.Ueda, Y.Temma, T.Masaki, M.Igashira, T.Ohsaki, T.Shizuma, T.Hayakawa Neutron experiment for the study of Re/Os cosmochronometer NUCLEAR REACTIONS 186,187,188Os(n, γ), E=10-90 keV; measured Eγ, Iγ.
doi: 10.1016/j.nuclphysa.2005.05.101
2005SH26 Phys.Rev. C 71, 067301 (2005) T.Shizuma, T.Hayakawa, S.Mitarai, T.Morikawa, T.Ishii Identification of the Kπ = 11/2+ isomer in neutron-rich 187W NUCLEAR REACTIONS 186W(82Se, X)187W/187Re/185Re, E=630 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (particle)γ-coin. 187W deduced levels, J, π, isomer T1/2, configuration. Recoil shadow technique.
doi: 10.1103/PhysRevC.71.067301
2005SH37 Phys.Rev. C 72, 025808 (2005) T.Shizuma, H.Utsunomiya, P.Mohr, T.Hayakawa, S.Goko, A.Makinaga, H.Akimune, T.Yamagata, M.Ohta, H.Ohgaki, Y.-W.Lui, H.Toyokawa, A.Uritani, S.Goriely Photodisintegration cross section measurements on 186W, 187Re, and 188Os: Implications for the Re-Os cosmochronology NUCLEAR REACTIONS 186W, 187Re, 188Os(γ, n), E=7.3-10.9 MeV; measured σ. 185W, 186Re, 187Os(n, γ), E < 100 keV; calculated capture σ. Astrophysical implications discussed.
doi: 10.1103/PhysRevC.72.025808
2005SH40 Nucl.Phys. A758, 557c (2005) T.Shima, Y.Nagai, H.Makii, K.Mishima, M.Segawa, H.Ueda, Y.Temma, T.Masaki, M.Igashira, T.Ohsaki, T.Hayakawa, T.Shizuma, H.Utsunomiya Experimental study of cosmonuclear physics at J-PARC
doi: 10.1016/j.nuclphysa.2005.05.102
2005SH41 Nucl.Phys. A758, 561c (2005) T.Shizuma, H.Utsunomiya, S.Goko, P.Mohr, T.Hayakawa, A.Makinaga, K.Y.Hara, H.Ohgaki, Y.-W.Lui, S.Goriely Photoneutron cross section measurements on 186W, 187Re and 188Os for cosmochronology NUCLEAR REACTIONS 188Os(γ, n), E=8-11 MeV; measured σ; deduced parameters. 187Os(n, γ), E=5-50 keV; calculated capture σ. Astrophysical implications discussed.
doi: 10.1016/j.nuclphysa.2005.05.103
2005UK01 Nucl.Phys. A754, 70c (2005) M.Ukai, O.Hashimoto, Y.Miura, T.Miyoshi, K.Mizunuma, S.N.Nakamura, Y.Okayasu, H.Tamura, S.Ajimura, T.Kishimoto, T.Hayakawa, S.Minami, H.Akikawa, K.Imai, H.Takahashi, D.E.Alburger, R.E.Chrien, H.Hotchi, M.May, P.Pile, A.Rusek, R.Sutter, T.Nagae, Y.Sato, A.Banu, G.B.Franklin, B.P.Quinn, J.Franz, K.Nakazawa, K.Tanida, L.Tang, L.Yuan, and the E930 '01 Collaboration Observation of hypernuclear fine structure in 16ΛO NUCLEAR REACTIONS 16O(K-, π-), E at 0.93 GeV/c; measured Eγ, Iγ. 16O deduced hypernucleus levels, J, π. Hyperball array.
doi: 10.1016/j.nuclphysa.2005.02.127
2004HA47 Phys.Rev.Lett. 93, 161102 (2004) T.Hayakawa, N.Iwamoto, T.Shizuma, T.Kajino, H.Umeda, K.Nomoto Evidence for Nucleosynthesis in the Supernova γ Process: Universal Scaling for p Nuclei
doi: 10.1103/PhysRevLett.93.161102
2004KO03 Nucl.Phys. A730, 46 (2004) M.Koizumi, A.Seki, Y.Toh, A.Osa, Y.Utsuno, A.Kimura, M.Oshima, T.Hayakawa, Y.Hatsukawa, J.Katakura, M.Matsuda, T.Shizuma, T.Czosnyka, M.Sugawara, T.Morikawa, H.Kusakari Multiple Coulomb excitation experiment of 68Zn NUCLEAR REACTIONS Pb(68Zn, 68Zn'), E=276 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 68Zn deduced transitions B(E2), B(M1), quadrupole moment.
doi: 10.1016/j.nuclphysa.2003.10.010
2004MO11 Phys.Rev. C 69, 032801 (2004) P.Mohr, T.Shizuma, H.Ueda, S.Goko, A.Makinaga, K.Y.Hara, T.Hayakawa, Y.-W.Lui, H.Ohgaki, H.Utsunomiya s-process branching at 185W revised NUCLEAR REACTIONS 186W(γ, n), E ≈ 4-11 MeV; measured neutron spectra, photodisintegration σ. 185W(n, γ), E=low; deduced capture σ. Astrophysical implications discussed.
doi: 10.1103/PhysRevC.69.032801
2004SH15 Eur.Phys.J. A 20, 207 (2004) T.Shizuma, Z.G.Gan, K.Ogawa, H.Nakada, M.Oshima, Y.Toh, T.Hayakawa, Y.Hatsukawa, M.Sugawara, Y.Utsuno, Z.Liu A new isomer in 136Ba populated by deep inelastic collisions NUCLEAR REACTIONS 139La(82Se, X)136Ba, E=450 MeV; measured prompt and delayed Eγ, Iγ, γγ-coin. 136Ba deduced levels, J, π, isomer T1/2, B(E2). Comparisons with shell model predictions.
doi: 10.1140/epja/i2003-10163-6
2004UK01 Phys.Rev.Lett. 93, 232501 (2004) M.Ukai, S.Ajimura, H.Akikawa, D.E.Alburger, A.Banu, R.E.Chrien, G.B.Franklin, J.Franz, O.Hashimoto, T.Hayakawa, H.Hotchi, K.Imai, T.Kishimoto, M.May, D.J.Millener, S.Minami, Y.Miura, T.Miyoshi, K.Mizunuma, T.Nagae, S.N.Nakamura, K.Nakazawa, Y.Okayasu, P.Pile, B.P.Quinn, A.Rusek, Y.Sato, R.Sutter, H.Takahashi, L.Tang, H.Tamura, K.Tanida, L.Yuan, S.H.Zhou, and the E930('01) Collaboration Hypernuclear Fine Structure in 16ΛO and the ΛN Tensor Interaction NUCLEAR REACTIONS 16O(K-, π-), E at 0.93 GeV/c; measured Eγ, Iγ, (particle)γ-coin. 16O deduced hypernucleus level energies, transitions. Hyperball array.
doi: 10.1103/PhysRevLett.93.232501
2004UT01 Nucl.Phys. A738, 136 (2004) H.Utsunomiya, K.Y.Hara, S.Goko, H.Akimune, T.Yamagata, M.Ohta, H.Ohgaki, H.Toyokawa, T.Hayakawa, T.Shizuma, P.Mohr, Y.-W.Lui, H.Ohkuma, H.Yonehara, K.Soutome, M.Arnould Photonuclear reaction studies at synchrotron radiation facilities in Japan
doi: 10.1016/j.nuclphysa.2004.04.022
2004WA16 Chin.Phys.Lett. 21, 1024 (2004) S.-Y.Wang, Y.-J.Ma, T.Komatsubara, Y.-Z.Liu, Y.-H.Zhang, K.Furuno, T.Hayakawa, J.Mukai, Y.Iwata, T.Morikawa, G.B.Hagemann, G.Sletten, J.Nyberg, D.Jerrestam, H.J.Jensen, J.Espino, J.Gascon, N.Gjorup, B.Cederwall, P.O.Tjom Structure of the πg7/2[404]7/2+ Band in Odd Proton Nucleus 123I NUCLEAR REACTIONS 116Cd(14N, 5n2p), E=65 MeV; measured Eγ, Iγ, γγ-coin. 123I deduced high-spin levels, J, π, configurations.
doi: 10.1088/0256-307X/21/6/012
2004WA37 High Energy Phys. and Nucl.Phys. (China) 28, 491 (2004) S.-Y.Wang, Y.-J.Ma, T.Komatsubara, Y.-Z.Liu, Y.-H.Zhang, G.-D.Liang, K.Furuno, T.Hayakawa, J.Mukai, Y.Iwata, T.Morikawa, G.B.Hagemann, G.Sletten, J.Nyberg, D.Jerrestam, H.J.Jensen, J.Espino, J.Gascon, N.Gjorup, B.Cederwall, P.O.Tjom High-Spin Level Scheme of 126Cs
2004XI01 Eur.Phys.J. A 19, 7 (2004) C.Y.Xie, X.H.Zhou, Y.Zheng, Y.H.Zhang, Z.Liu, Z.G.Gan, T.Hayakawa, M.Oshima, T.Toh, T.Shizuma, J.Katakura, Y.Hatsukawa, M.Matsuda, H.Kusakari, M.Sugawara, K.Furuno, T.Komatsubara Level structure of 146Tb NUCLEAR REACTIONS 118Sn(32S, 3np), E=165 MeV; measured Eγ, Iγ, γγ-, (X-ray)γ-coin. 146Tb deduced high-spin levels, J, π, configurations.
doi: 10.1140/epja/i2003-10116-1
2004ZH05 Eur.Phys.J. A 19, 11 (2004) X.H.Zhou, M.Oshima, F.R.Xu, Y.Toh, Y.H.Zhang, Y.Zheng, Y.B.Xu, M.Koizumi, A.Osa, T.Hayakawa, Y.Hatsukawa, T.Shizuma, M.Sugawara Configuration-dependent bands in 169Re NUCLEAR REACTIONS 144Sm(28Si, 2np), E=140, 145, 150 MeV; measured Eγ, Iγ, γγ-, (X-ray)γ-coin. 169Re deduced high-spin levels, J, π, configurations, B(M1)/B(E2). Cranked mean-field calculations, comparison with neighboring isotopes.
doi: 10.1140/epja/i2003-10106-3
2004ZH09 J.Phys.(London) G30, 465 (2004) Y.Zheng, X.H.Zhou, Y.H.Zhang, T.Hayakawa, M.Oshima, Y.Toh, T.Shizuma, J.Katakura, Y.Hatsukawa, M.Matsuda, H.Kusakari, M.Sugawara, K.Furuno, T.Komatsubara Multi-quasiparticle excitations in 145Tb NUCLEAR REACTIONS 118Sn(32S, 4np), E=161, 168, 175 MeV; measured Eγ, Iγ, γγ-coin. 145Tb deduced high-spin levels, J, π, configurations.
doi: 10.1088/0954-3899/30/4/006
2003HA01 Phys.Lett. 551B, 79 (2003) T.Hayakawa, Y.Toh, M.Oshima, M.Matsuda, Y.Hatsukawa, N.Shinohara, H.Iimura, T.Shizuma, Y.H.Zhang, M.Sugawara, H.Kusakari Electric-dipole transition probabilities between yrast bands in 157Gd NUCLEAR REACTIONS 157Gd(136Xe, 136Xe'), E=516 MeV; measured Eγ, Iγ, γγ-coin following Coulomb excitation. 157Gd deduced high-spin levels, J, π, configurations, interband transitions B(E1), Coriolis mixing.
doi: 10.1016/S0370-2693(02)02982-9
2003HA15 Phys.Rev. C 67, 064310 (2003) T.Hayakawa, Y.Toh, M.Oshima, A.Osa, M.Koizumi, Y.Hatsukawa, Y.Utsuno, J.Katakura, M.Matsuda, T.Morikawa, M.Sugawara, H.Kusakari, T.Czosnyka Projectile Coulomb excitation of 78Se NUCLEAR REACTIONS Pb(78Se, 78Se'), E=320 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 78Se deduced transitions B(E2), B(M1), quadrupole moments.
doi: 10.1103/PhysRevC.67.064310
2003HA31 Nucl.Phys. A718, 665c (2003) T.Hayakawa, T.Shizuma, T.Yamauchi, E.Minehara, T.Arisawa Neutron capture cross section to 186Re isomeric state NUCLEAR REACTIONS 185Re(n, γ), E=thermal; measured capture σ to ground and isomeric states. Astrophysical implications discussed.
doi: 10.1016/S0375-9474(03)00882-0
2003HA45 Phys.Rev. C 68, 067303 (2003) T.Hayakawa, Y.Toh, M.Oshima, M.Matsuda, Y.Hatsukawa, T.Shizuma, J.Katakura, H.Iimura, S.Mitarai, Y.H.Zhang, M.Sugawara, H.Kusakari High spin states in 158Dy NUCLEAR REACTIONS 150Nd(12C, 4n), E=64 MeV; measured Eγ, Iγ, γγ-coin. 158Dy deduced high-spin levels, J, π, configurations.
doi: 10.1103/PhysRevC.68.067303
2003HE29 High Energy Phys. and Nucl.Phys. (China) 27, 784 (2003) C.-Y.He, S.-X.Wen, L.-H.Zhu, Z.-M.Wang, G.-S.Li, R.-G.Ma, X.-G.Wu, G.-J.Yuan, C.-X.Yang, Y.Wang, Z.-L.Zhang, R.Meng, J.-B.Lu, R.-Q.Xu, S.-D.Xiao, M.Oshima, Y.Toh, A.Osa, M.Koizumi, Y.Hatsukawa, M.Matsuda, T.Hayakawa Signature Splitting and Inversion and Back Bending in Negative Sideband in 80Rb
2003KI25 Prog.Theor.Phys.(Kyoto), Suppl. 149, 264 (2003) T.Kishimoto, T.Hayakawa, S.Ajimura, S.Minami, A.Sakaguchi, Y.Shimizu, R.E.Chrien, M.May, P.Pile, A.Rusek, R.Sutter, H.Noumi, H.Tamura, M.Ukai, Y.Miura, K.Tanida Kaonic Nuclei Excited by the In-Flight (K-, N) Reaction NUCLEAR REACTIONS 16O(K-, n), E at 0.93 GeV/c; measured neutron spectra.
doi: 10.1143/PTPS.149.264
2003KO51 Eur.Phys.J. A 18, 87 (2003) M.Koizumi, A.Seki, Y.Toh, M.Oshima, A.Osa, A.Kimura, Y.Hatsukawa, T.Shizuma, T.Hayakawa, M.Matsuda, J.Katakura, T.Czosnyka, M.Sugawara, T.Morikawa, H.Kusakari Multiple Coulomb excitation experiment of 66Zn NUCLEAR REACTIONS Pb(66Zn, 66Zn'), E=274.2 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 66Zn deduced transitions B(E2), level configurations, quadrupole moments. Cranked mean-field calculations.
doi: 10.1140/epja/i2003-10063-9
2003SH13 Eur.Phys.J. A 17, 159 (2003) T.Shizuma, Y.Toh, M.Oshima, M.Sugawara, M.Matsuda, T.Hayakawa, M.Koizumi, A.Osa, Y.H.Zhang, Z.Liu Inelastic excitation of 187Re NUCLEAR REACTIONS 187Re(82Se, 82Se'), E=500 MeV; measured prompt and delayed Eγ, Iγ, γγ-coin. 187Re deduced levels, J, π, gK-gR, configurations, isomeric state T1/2.
doi: 10.1140/epja/i2002-10156-y
2003SU01 Eur.Phys.J. A 16, 409 (2003) M.Sugawara, Y.Toh, T.Czosnyka, M.Oshima, T.Hayakawa, H.Kusakari, Y.Hatsukawa, J.Katakura, N.Shinohara, M.Matsuda, T.Morikawa, A.Seki, F.Sakata Multiple Coulomb excitation of a 70Ge beam and the interpretation of the 0+2 state as a deformed intruder NUCLEAR REACTIONS Pb(70Ge, 70Ge'), E=300 MeV; measured Eγ, Iγ following projectile Coulomb excitation. 70Ge deduced transition matrix elements, level configurations. Comparison with model predictions.
doi: 10.1140/epja/i2002-10110-1
2003UT01 Phys.Rev. C 67, 015807 (2003) H.Utsunomiya, H.Akimune, S.Goko, M.Ohta, H.Ueda, T.Yamagata, K.Yamasaki, H.Ohgaki, H.Toyokawa, Y.-W.Lui, T.Hayakawa, T.Shizuma, E.Khan, S.Goriely Cross section measurements of the 181Ta(γ, n)180Ta reaction near neutron threshold and the p-process nucleosynthesis NUCLEAR REACTIONS 181Ta(γ, n), E ≈ 7.8-12 MeV; measured σ; calculated astrophysical reaction rates.
doi: 10.1103/PhysRevC.67.015807
2003UT02 Nucl.Phys. A718, 199c (2003) H.Utsunomiya, H.Akimune, S.Goko, T.Hayakawa, Y.-W.Lui, H.Ohgaki, M.Ohta, T.Shizuma, H.Toyokawa, T.Yamagata A new astrophysical γ probe and its applications NUCLEAR REACTIONS 181Ta(γ, n), E ≈ 7.8-12.5 MeV; 9Be(γ, n), E ≈ 1.5-4.5 MeV; measured photoneutron σ. 9Be deduced resonance parameters. Comparison with previous results and model predictions.
doi: 10.1016/S0375-9474(03)00715-2
2003XI05 High Energy Phys. and Nucl.Phys. (China) 27, 884 (2003) C.-Y.Xie, X.-H.Zhou, Y.Zheng, Y.-H.Zhang, Z.Liu, Q.-Y.Pan, Z.-G.Gan, T.Hayakawa, M.Oshima, T.Toh, T.Shizuma, J.Katakura, Y.Hatsukawa, M.Matsuda, H.Kusakari, M.Sugawara Study of Level Structure in 146Tb
2003ZH50 High Energy Phys. and Nucl.Phys. (China) 27, 313 (2003) Y.-H.Zhang, M.Oshima, T.Morikawa, T.Hayakawa, Y.Toh, X.-H.Zhou, J.-J.He, Z.Liu, Z.-G.Gan, T.Shizuma, M.Koizumi, A.Osa, J.Katakura, Y.Hatsukawa, M.Matsuda, N.Shinohara, T.Ishii, H.Kusakari, M.Sugawara, K.Furuno, T.Komatsubara, T.Une, S.-X.Wen, L.-H.Zhu, Z.-M.Wang, F.-R.Xu Study of Signature Inversion in the πi13/2(X)νi13/2 Bands of Odd-Odd Nuclei
2003ZH53 High Energy Phys. and Nucl.Phys. (China) 27, 984 (2003) X.-H.Zhou, M.Oshima, F.R.Xu, Y.Toh, Y.-H.Zhang, Y.Zheng, M.Koizumi, A.Osa, T.Hayakawa, Y.Hatsukawa, T.Shizuma, M.Sugawara Configuration-Dependent Bands in 169Re
2002GA54 High Energy Phys. and Nucl.Phys. (China) 26, 814 (2002) Z.-G.Gan, Z.Liu, Y.-H.Zhang, Q.-Y.Pan, M.Oshima, T.Hayakawa, Y.Toh, T.Shizima, Y.Hatsukawa, T.Ishii, M.Sugawara A New Isomer State in 136Ba
2002HA55 Eur.Phys.J. A 15, 299 (2002) T.Hayakawa, Y.Toh, M.Oshima, M.Matsuda, Y.Hatsukawa, J.Katakura, H.Iimura, T.Shizuma, S.Mitarai, M.Sugawara, H.Kusakari, Y.H.Zhang Rotational alignment of the h11/2 band in 157Dy NUCLEAR REACTIONS 150Nd(12C, 5n), E=65 MeV; measured Eγ, Iγ, γγ-coin. 157Dy deduced high-spin levels, J, π, B(M1)/B(E2), configurations. Tilted-axis-cranking model analysis.
doi: 10.1140/epja/i2002-10082-0
2002HA60 Prog.Theor.Phys.(Kyoto), Suppl. 146, 561 (2002) T.Hayakawa, T.Shizuma, T.Yamauchi, T.Arisawa Nucleosynthesis of Heavy Element
doi: 10.1143/PTPS.146.561
2002LI21 Eur.Phys.J. A 13, 277 (2002) Z.Liu, Y.H.Zhang, X.H.Zhou, M.L.Liu, W.J.Luo, Q.Y.Pan, Z.G.Gan, T.Hayakawa, M.Oshima, Y.Toh, T.Shizima, Y.Hatsukawa, A.Osa, T.Ishii, M.Sugawara New Yrast Excited States of the N = 84 Nucleus 142Ce Observed in Deep Inelastic Reactions NUCLEAR REACTIONS 139La(82Se, X)142Ce, E=420 MeV; measured Eγ, γγ-coin, DCO, following deep inelastic reactions. 142Ce deduced levels, J, π, configurations. Comparison with Shell model results.
doi: 10.1007/s10050-002-8755-8
2002LI71 High Energy Phys. and Nucl.Phys. (China) 26, 1015 (2002) Z.Liu, Y.-H.Zhang, Y.-X.Guo, X.-H.Zhou, X.-G.Lei, M.-L.Liu, W.-J.Luo, J.-J.He, Y.Zheng, Q.-Y.Pan, Z.-G.Gan, Y.-X.Luo, T.Hayakawa, M.Oshima, Y.Toh, T.Shizima, Y.Hatsukawa, A.Osa, T.Ishii, M.Sugawara Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus 142Ce
2002OS07 Phys.Lett. 546B, 48 (2002) A.Osa, T.Czosnyka, Y.Utsuno, T.Mizusaki, Y.Toh, M.Oshima, M.Koizumi, Y.Hatsukawa, J.Katakura, T.Hayakawa, M.Matsuda, T.Shizuma, M.Sugawara, T.Morikawa, H.Kusakari First measurement of the quadrupole moment in the 2+1 state of 84Kr NUCLEAR REACTIONS 98Mo, Ta(84Kr, 84Kr'), E=250 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 84Kr level deduced quadrupole moment, B(E2). Comparisons with large-scale shell model predictions.
doi: 10.1016/S0370-2693(02)02660-6
2002SH21 Phys.Rev. C65, 064310 (2002) T.Shizuma, P.D.Stevenson, P.M.Walker, Y.Toh, T.Hayakawa, M.Oshima, K.Furuno, T.Komatsubara High-K Negative Parity States in 184Os NUCLEAR REACTIONS 170Er(18O, 4n), E=85 MeV; measured Eγ, Iγ, γγ-coin. 184Os deduced high-spin levels, J, π, configurations, isomeric state T1/2. Cranked mean-field calculations.
doi: 10.1103/PhysRevC.65.064310
2002SH41 J.Nucl.Sci.Technol.(Tokyo) 39, 1137 (2002) T.Shizuma, Y.R.Shimizu, T.Hayakawa Tunneling in High-K Isomeric Decays NUCLEAR STRUCTURE 170Dy; calculated potential energy surface. 172,174Hf, 176,177,178,179,182W, 182,183,184,186Os; calculated hindrance factors for high-K isomeric decay. Dy, Er, Yb, Hf, W, Os; calculated tunneling probabilities. Tunneling model, comparisons with data.
doi: 10.1080/18811248.2002.9715304
2002SU03 Nucl.Phys. A699, 450 (2002) M.Sugawara, S.Mitarai, H.Kusakari, M.Oshima, T.Hayakawa, Y.Toh, Y.Hatsukawa, J.Katakura, H.Iimura, Y.H.Zhang, M.Sugie, Y.Sato Rotational Bands of 159Dy NUCLEAR REACTIONS 150Nd(13C, 4n), E=65 MeV; measured Eγ, Iγ, γγ-coin. 159Dy deduced high-spin levels, J, π, γ-branching, B(E1)/B(E2), B(M1)/B(E2), configurations. Generalized intensity relation, strong coupling model.
doi: 10.1016/S0375-9474(01)01280-5
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