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Search: Author = K.Tsukada

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2023TS06      Phys.Rev.Lett. 131, 092502 (2023)

K.Tsukada, Y.Abe, A.Enokizono, T.Goke, M.Hara, Y.Honda, T.Hori, S.Ichikawa, Y.Ito, K.Kurita, C.Legris, Y.Maehara, T.Ohnishi, R.Ogawara, T.Suda, T.Tamae, M.Wakasugi, M.Watanabe, H.Wauke

First Observation of Electron Scattering from Online-Produced Radioactive Target

NUCLEAR REACTIONS 137Cs(e-, e-), E=149.3 MeV; measured reaction products; deduced σ(θ). Comparison with calculations. Self-confining RI ion target (SCRIT), 150-MeV electron microtron.

doi: 10.1103/PhysRevLett.131.092502
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2022OR04      Phys.Rev. C 106, 064301 (2022)

R.Orlandi, H.Makii, K.Nishio, K.Hirose, M.Asai, K.Tsukada, T.K.Sato, Y.Ito, F.Suzaki, Y.Nagame, A.N.Andreyev, E.Ideguchi, N.Aoi, T.T.Pham, S.Q.Yan, Y.P.Shen, B.Gao, G.Li

New K isomers in 248Cf

NUCLEAR REACTIONS 249Cf(18O, 19O)248Cf, E=140.4 MeV; measured reaction products, Eγ, Iγ, γγ-coin, particleγ-coin. 248Cf; deduced levels, J, π, transitions from isomeric states, T1/2 for 2 low-ling transitions, B(E1). Discussed possible configuration of newly observed isomeric state at 950 keV to be two-quasineutron K=8- and the two-quasiproton K=5-. Comparison to other experimental data. Radioactive target. Si-detectors array combined with γ-ray detector array consisted of 4 Ge detectors and 4 4x5 inch LaBr3 scintillators at Tokai Tandem accelerator facility of the Japan Atomic Energy Agency (JAEA).

doi: 10.1103/PhysRevC.106.064301
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2022TA02      Phys.Rev. C 105, L021602 (2022)

S.Tanaka, K.Hirose, K.Nishio, K.R.Kean, H.Makii, R.Orlandi, K.Tsukada, Y.Aritomo

Angular momentum transfer in multinucleon transfer channels of 18O +237Np

NUCLEAR REACTIONS 237Np(18O, X)236Np/237Np/238Np/239Np/237Pu/238Pu/239Pu/240Pu/239Am/240Am/241Am/242Am, E=162 MeV; measured fission fragments, angular distribution of fission fragments; deduced angular anisotropy, average angular momenta. Beam from JAEA tandem accelerator.

doi: 10.1103/PhysRevC.105.L021602
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2021KA48      J.Radioanal.Nucl.Chem. 330, 913 (2021)

M.Kawabata, S.Motoishi, A.Ohta, A.Motomura, H.Saeki, K.Tsukada, S.Hashimoto, N.Iwamoto, Y.Nagai, K.Hashimoto

Large scale production of 64Cu and 67Cu via the 64Zn(n, p)64Cu and 68Zn(n, np/d)67Cu reactions using accelerator neutrons

NUCLEAR REACTIONS 64Zn(n, p), 68Zn(n, d), E<40 MeV; measured reaction products, Eγ, Iγ; deduced yields. Comparison with calculations.

doi: 10.1007/s10967-021-07987-3
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2020DU01      Phys.Rev. C 101, 014309 (2020)

E.Dupont, A.Astier, C.M.Petrache, B.F.Lv, I.Deloncle, J.Kiener, R.Orlandi, H.Makii, K.Nishio, K.Hirose, M.Asai, T.K.Sato, K.Tsukada, Y.Ito, K.R.Kean, R.Yanagihara, G.Scamps

New excited 2+ and 3- two-proton states in 21084Po126 populated by two-proton transfer

NUCLEAR REACTIONS 208Pb(12C, 10Be)9Be/10Be/11B/12C/13C, 14C/210Po, E=58, 60, 62, 63.7 MeV; measured reaction products, light beamlike ejectiles, Eγ, Iγ, (charged particles)γ-coin at the 18 MV tandem of JAEA Tokai. 210Po; deduced six 2+ and three 3- levels in two-proton stripping reaction, configurations.

doi: 10.1103/PhysRevC.101.014309
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2020HA27      Phys.Rev. C 102, 024625 (2020)

H.Haba, F.Fan, D.Kaji, Y.Kasamatsu, H.Kikunaga, Y.Komori, N.Kondo, H.Kudo, K.Morimoto, K.Morita, M.Murakami, K.Nishio, J.P.Omtvedt, K.Ooe, Z.Qin, D.Sato, N.Sato, T.K.Sato, Y.Shigekawa, A.Shinohara, M.Takeyama, T.Tanaka, A.Toyoshima, K.Tsukada, Y.Wakabayashi, Y.Wang, S.Wulff, S.Yamaki, S.Yano, Y.Yasuda, T.Yokokita

Production of 266Bh in the 248Cm(23Na, 5n)266Bh reaction and its decay properties

RADIOACTIVITY 266,267Bh(α)[from 248Cm(23Na, 5n), (23Na, 4n), E=125.9, 130.6, 135.3 MeV]; 262Db(α), (SF)[from 266Bh α decay]; 263Db(EC), (α), (SF)[from 267Bh α decay]; 263Rf(SF)[from 263Db EC decay]; 258Lr(α), (EC)[from 262Db α decay]; 259Lr(α), (SF)[from 263Db α decay]; 258No(SF)[from 258Lr(EC); measured Eα, αα-, ααα- and α(SF)-correlations for 32 observed events using rotating wheel apparatus MANON and gas-jet transport system coupled to gas-filled recoil ion separator GARIS at RIKEN; deduced decay times, half-lives, decay branching ratios, production cross sections for 266Bh and 267Bh. Comparison with previous experimental results for half-lives and branching ratios for decay modes.

NUCLEAR REACTIONS 248Cm(23Na, 5n), (23Na, 4n), E=125.9, 130.6, 135.3 MeV; measured reaction products, σ(E) at RIKEN. Comparison with HIVAP calculations, and with previous experimental results.

doi: 10.1103/PhysRevC.102.024625
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2676. Data from this article have been entered in the XUNDL database. For more information, click here.


2020VE07      Phys.Rev. C 102, 054610 (2020)

M.J.Vermeulen, K.Nishio, K.Hirose, K.R.Kean, H.Makii, R.Orlandi, K.Tsukada, I.Tsekhanovich, A.N.Andreyev, S.Ishizaki, M.Okubayashi, S.Tanaka, Y.Aritomo

Measurement of fission-fragment mass distributions in the multinucleon transfer channels of the 18O + 237Np reaction

NUCLEAR REACTIONS 237Np(18O, X)234U*/235U*/236U*/237U*/236Np*/237Np*/238Np*/239Np*/238Pu*/239Pu*/240Pu*/241Pu*/240Am*/241Am*/242Am*/243Am*/242Cm*/243Cm*/244Cm*/245Cm*/244Bk*/245Bk*/246Bk*, E=162.0 MeV from tandem accelerator facility of Japan Atomic Energy Agency (JAEA); measured fission fragments from the fission of reaction products U(A=234-237), Np(A=236-239), Pu(A=238-241), Am(A=240-243), Cm(A=242-244) and Bk(A=244-246) using ΔE-E silicon telescope to detect ejectiles, and four multiwire proportional counters, to detect fission fragments (FFs); deduced yields of fission fragments as a function of their mass and total excitation energy for each multi-nucleon transfer (MNT) channel, fission-fragment mass distributions as function of excitation energy of 7-70 MeV, most probable total excitation energy for each channel, light-fragment and heavy-fragment mass distributions. Comparison with Langevin theoretical calculations including the multichance fission (MCF) process of fission after neutron evaporation.

doi: 10.1103/PhysRevC.102.054610
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2680.


2019AJ01      Phys.Lett. B 789, 620 (2019)

S.Ajimura, H.Asano, G.Beer, C.Berucci, H.Bhang, M.Bragadireanu, P.Buehler, L.Busso, M.Cargnelli, S.Choi, C.Curceanu, S.Enomoto, H.Fujioka, Y.Fujiwara, T.Fukuda, C.Guaraldo, T.Hashimoto, R.S.Hayano, T.Hiraiwa, M.Iio, M.Iliescu, K.Inoue, Y.Ishiguro, T.Ishikawa, S.Ishimoto, K.Itahashi, M.Iwasaki, K.Kanno, K.Kato, Y.Kato, S.Kawasaki, P.Kienle, H.Kou, Y.Ma, J.Marton, Y.Matsuda, Y.Mizoi, O.Morra, T.Nagae, H.Noumi, H.Ohnishi, S.Okada, H.Outa, K.Piscicchia, Y.Sada, A.Sakaguchi, F.Sakuma, M.Sato, A.Scordo, M.Sekimoto, H.Shi, K.Shirotori, D.Sirghi, F.Sirghi, K.Suzuki, S.Suzuki, T.Suzuki, K.Tanida, H.Tatsuno, M.Tokuda, D.Tomono, A.Toyoda, K.Tsukada, O.Vazquez Doce, E.Widmann, T.Yamaga, T.Yamazaki, Q.Zhang, J.Zmeskal

"K-pp", a K-bar-meson nuclear bound state, observed in 3He(K-, Λp)n reactions

NUCLEAR REACTIONS 3He(K-, Λp), E ∼ 1 GeV; measured reaction products; deduced a distinct peak in the Λp invariant mass spectrum.

doi: 10.1016/j.physletb.2018.12.058
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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
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2019TS07      Hyperfine Interactions 240, 102 (2019)

K.Tsukada, K.Adachi, A.Enokizono, T.Fujita, M.Hara, T.Hori, M.Hori, S.-i.Ichikawa, K.Kasama, K.Kurita, K.Namba, T.Ohnishi, T.Suda, T.Tamae, M.Togasaki, M.Wakasugi, M.Watanabe, K.Yamada

Electron scattering from 208Pb and 132Xe ions at the SCRIT facility

NUCLEAR REACTIONS 132Xe, 208Pb(E, E), E=151, 201, 301 MeV; measured reaction products, Eβ, Iβ; deduced σ(θ).

doi: 10.1007/s10751-019-1635-2
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2019XI06      Phys.Rev. C 100, 034315 (2019)

Y.Xiao, S.Go, R.Grzywacz, R.Orlandi, A.N.Andreyev, M.Asai, M.A.Bentley, G.de Angelis, C.J.Gross, P.Hausladen, K.Hirose, S.Hofmann, H.Ikezoe, D.G.Jenkins, B.Kindler, R.Leguillon, B.Lommel, H.Makii, C.Mazzocchi, K.Nishio, P.Parkhurst, S.V.Paulauskas, C.M.Petrache, K.P.Rykaczewski, T.K.Sato, J.Smallcombe, A.Toyoshima, K.Tsukada, K.Vaigneur, R.Wadsworth

Search for α decay of 104Te with a novel recoil-decay scintillation detector

RADIOACTIVITY 108,109Xe, 104,105Te(α)[from 54Fe(58Ni, X), E=250 MeV from the tandem accelerator of the Japan Atomic Energy Agency (JAEA), followed by separation of evaporation residues using Recoil Mass Separator (RMS)]; measured Eα, Iα, αα-correlations using an inorganic scintillator YAP:Ce for implanted nuclei, and a multiwire proportional chamber (MWPC) for α particles; deduced αα-correlations for the 109Xe to 105Te to 101Sn α-decay chain, and no conclusive trace observed for the 108Xe to 104Te to 100Sn α-decay chain, half-life of 108Xe decay, upper limit of 4 ns for the half-life of 104Te; estimated cross section for the production of 108Xe, an order of magnitude lower than the expectation based on earlier cross section measurements and the HIVAP fusion-evaporation code. 109I(p), 108,109Te(α); measured proton and α spectra, half-life of 109I decay. Comparison with data for 108Xe to 104Te to 100Sn α-decay chain reported by 2018Au04.

doi: 10.1103/PhysRevC.100.034315
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Data from this article have been entered in the XUNDL database. For more information, click here.


2018GO11      Nucl.Instrum.Methods Phys.Res. A900, 60 (2018)

T.Gogami, C.Chen, Y.Fujii, O.Hashimoto, M.Kaneta, D.Kawama, T.Maruta, A.Matsumura, S.Nagao, S.N.Nakamura, Y.Okayasu, J.Reinhold, L.Tang, K.Tsukada, S.A.Wood, L.Yuan

Experimental techniques and performance of Λ-hypernuclear spectroscopy with the (e, e'K+) reaction

NUCLEAR REACTIONS 1H, 7Li, 9Be, 10B, 12C, 16O, 52Cr(E, E'K+), E=2.344 GeV; measured reaction products, Eβ, Iβ; deduced missing mass spectrum, the best energy resolution in reaction spectroscopy of hypernuclei.

doi: 10.1016/j.nima.2018.05.042
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2018OH01      Acta Phys.Pol. B49, 483 (2018)

T.Ohnishi, A.Enokizono, M.Hara, M.Hori, S.Ichikawa, M.Wakasugi, M.Watanabe, K.Adachi, T.Fujita, T.Hori, K.Kurita, M.Togasaki, N.Uchida, K.Yamada, T.Suda, T.Tamae, K.Tsukada

The SCRIT Electron Scattering Facility Project at the RIKEN RI Beam Factory

doi: 10.5506/aphyspolb.49.483
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2661.


2017TS03      Phys.Rev.Lett. 118, 262501 (2017)

K.Tsukada, A.Enokizono, T.Ohnishi, K.Adachi, T.Fujita, M.Hara, M.Hori, T.Hori, S.Ichikawa, K.Kurita, K.Matsuda, T.Suda, T.Tamae, M.Togasaki, M.Wakasugi, M.Watanabe, K.Yamada

First Elastic Electron Scattering from 132Xe at the SCRIT Facility

NUCLEAR REACTIONS 132Xe(E, E), E=151, 201, 301 MeV; measured reaction products, Eβ, Iβ; deduced σ(θ).

doi: 10.1103/PhysRevLett.118.262501
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016BE17      Prog.Theor.Exp.Phys. 2016, 063D01 (2016)

B.Beckford, P.Bydzovsky, A.Chiba, D.Doi, T.Fujii, Y.Fujii, K.Futatsukawa, T.Gogami, O.Hashimoto, Y.C.Han, K.Hirose, R.Honda, K.Hosomi, T.Ishikawa, H.Kanda, M.Kaneta, Y.Kaneko, S.Kato, D.Kawama, C.Kimura, S.Kiyokawa, T.Koike, K.Maeda, K.Makabe, M.Matsubara, K.Miwa, S.Nagao, S.N.Nakamura, A.Okuyama, K.Shirotori, K.Sugihara, K.Suzuki, T.Tamae, H.Tamura, K.Tsukada, F.Yamamoto, T.O.Yamamoto, F.Yonemoto, H.Yamazaki

Near threshold angular distributions for the 2H(γ, Λ)X reaction

NUCLEAR REACTIONS 2H(γ, Λ), E=0.95-1.08 GeV; measured reaction products; deduced σ(θ, p). Comparison with available data.

doi: 10.1093/ptep/ptw071
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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
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2015HO11      Prog.Theor.Exp.Phys. 2015, 081D01 (2015)

K.Hosomi, Y.Ma, S.Ajimura, K.Aoki, S.Dairaku, Y.Fu, H.Fujioka, K.Futatsukawa, W.Imoto, Y.Kakiguchi, M.Kawai, S.Kinoshita, T.Koike, N.Maruyama, M.Mimori, S.Minami, Y.Miura, K.Miwa, Y.Miyagi, T.Nagae, D.Nakajima, H.Noumi, K.Shirotori, T.Suzuki, T.Takahashi, T.N.Takahashi, H.Tamura, K.Tanida, N.Terada, A.Toyoda, K.Tsukada, M.Ukai, S.Zhou

Precise determination of Λ12C level structure by γ-ray spectroscopy

NUCLEAR REACTIONS 12C(π+, K+), E=12 GeV; measured reaction products, Eγ, Iγ; deduced the level structure of the 12C hypernucleus, J, π, the spacing of the ground-state doublet. Comparison with available data.

doi: 10.1093/ptep/ptv113
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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
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2014HA04      Phys.Rev. C 89, 024618 (2014)

H.Haba, M.Huang, D.Kaji, J.Kanaya, Y.Kudou, K.Morimoto, K.Morita, M.Murakami, K.Ozeki, R.Sakai, T.Sumita, Y.Wakabayashi, A.Yoneda, Y.Kasamatsu, Y.Kikutani, Y.Komori, K.Nakamura, A.Shinohara, H.Kikunaga, H.Kudo, K.Nishio, A.Toyoshima, K.Tsukada

Production of 262Db in the 248Cm(19F, 5n)262Db reaction and decay properties of 262Db and 258Lr

NUCLEAR REACTIONS 248Cm(19F, 5n)262Db, E=97.4, 103.1 MeV; measured production σ of 262Db, correlated α-α and α-SF decay chains using rotating wheel apparatus MANON for α and SF spectrometry at RIKEN facility. Comparison with HIVAP model calculations, and with previous experimental and theoretical results. No observation of 263Db and 259Lr correlated chains through possible 248Cm(19F, 4n) reaction channel.

RADIOACTIVITY 262Db(α), (SF)[from 248Cm(19F, 5n), E=97.4, 103.1 MeV]; 258Lr(α), (EC)[from 262Db α decay]; measured Eα, Iα, half-lives, α-α, α-SF correlations, branching ratios for α, SF and EC modes. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.89.024618
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2450. Data from this article have been entered in the XUNDL database. For more information, click here.


2014SA21      Radiochim.Acta 102, 211 (2014)

N.Sato, T.K.Sato, M.Asai, A.Toyoshima, K.Tsukada, Z.J.Li, K.Nishio, Y.Nagame, M.Schadel, H.Haba, S.Ichikawa, H.Kikunaga

Production of 256Lr in the 249, 250, 251Cf + 11B, 243Am + 18O, and 248Cm + 14N reactions

NUCLEAR REACTIONS 249,250,251Cf(11B, xn)256Lr, E=65.1-76.4 MeV; 243Am(18O, 5n), E=106.9-112.4 MeV; 248Cm(14N, 6n), E=101.5 MeV; measured reaction products, Eα, Iα; deduced σ, T1/2. Comparison with available data.

doi: 10.1515/ract-2014-2142
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2465.


2014SA38      J.Phys.Soc.Jpn. 83, 073201 (2014)

N.Sato, K.Tsukada, S.Watanabe, N.S.Ishioka, M.Kawabata, H.Saeki, Y.Nagai, T.Kin, F.Minato, N.Iwamoto, O.Iwamoto

First Measurement of the Radionuclide Purity of the Therapeutic Isotope 67Cu Produced by 68Zn(n, x) Reaction Using natC(d, n) Neutrons

NUCLEAR REACTIONS 68Zn(n, X)64Cu/67Cu/69Zn/65Zn/65Ni/66Ni, E<40 MeV; measured reaction products, Eγ, Iγ; deduced yields. Comparison with CCONE nuclear model code calculations.

doi: 10.7566/JPSJ.83.073201
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2013AS02      Phys.Rev. C 87, 014332 (2013)

M.Asai, K.Tsukada, M.Sakama, H.Haba, T.Ichikawa, Y.Ishii, A.Toyoshima, T.Ishii, I.Nishinaka, Y.Nagame, Y.Kasamatsu, M.Shibata, Y.Kojima, H.Hayashi

Ground-state configuration of the N=157 nucleus 259No

RADIOACTIVITY 259No(α)[from 248Cm(18O, 3nα), E=94 MeV]; measured Eα, Iα, Eγ, I(K-x rays), αγ-coin, T1/2 at JAEA facility. 255Fm; deduced levels, J, π, multipolarity, configuration. 259No; deduced ground-state configuration. 255,257,259,261,263,265No; calculated energies of neutron single-particle orbitals, and β2, β4, β6 deformation parameters using macroscopic-microscopic model based on FRLDM and Strutinsky shell correction method. Observed α lines from decays of 211,213,214Po, 211At, 250,254,255,256Fm, 253Es, 257No, 261Rf formed in competing reaction channels.

doi: 10.1103/PhysRevC.87.014332
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Data from this article have been entered in the XUNDL database. For more information, click here.


2013BH05      Few-Body Systems 54, 103 (2013)

H.Bhang, S.Ajimura, K.Aoki, A.Banu, T.Fukuda, O.Hashimoto, J.I.Hwang, S.Kameoka, B.H.Kang, E.Kim, J.H.Kim, M.Kim, T.Maruta, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, S.Okada, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tshoo, K.Tsukada, T.Watanabe, H.J.Yim

Three-Body ΛNN → nNN Nonmesonic Weak Decay Process of Λ Hypernuclei

RADIOACTIVITY 5He, 12C(2n), (n), (p); measured hypernuclei decay products, En, In, Ep, Ip; deduced branching ratios and decay resonance widths. Non-mesonic weak decay (NMWD), comparison with available data.

doi: 10.1007/s00601-012-0370-x
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2013ES03      Nucl.Phys. A914, 519c (2013)

A.Esser, S.Nagao, F.Schulz, S.Bleser, M.Steinen, P.Achenbach, C.Ayerbe Gayoso, R.Bohm, O.Borodina, D.Bosnar, A.Botvina, V.Bozkurt, L.Debenjak, M.O.Distler, I.Friscic, Y.Fujii, T.Gogami, M.Gomez Rodriguez, O.Hashimoto, S.Hirose, H.Kanda, M.Kaneta, E.Kim, Y.Kohl, J.Kusaka, A.Margaryan, H.Merkel, M.Mihovilovic, U.Muller, S.N.Nakamura, J.Pochodzalla, C.Rappold, J.Reinhold, T.R.Saito, A.Sanchez Lorente, S.Sanchez Majos, B.S.Schlimme, M.Schoth, C.Sfienti, S.Sirca, L.Tang, M.Thiel, K.Tsukada, A.Weber, K.Yoshida

Prospects for hypernuclear physics at Mainz: From KAOS@MAMI to PANDA@FAIR

NUCLEAR REACTIONS 9Be(e, 3H), (e, 4H), E=1.5 GeV; measured Λ hypernuclei π-meson time coincidence with pion, muon, electron. Preliminary.

doi: 10.1016/j.nuclphysa.2013.02.008
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2013Ho17      Nucl.Phys. A914, 184c (2013)

K.Hosomi, S.Ajimura, K.Aoki, M.Dairaku, Y.Y.Fu, H.Fujioka, T.Fukuda, K.Futatsukawa, W.Imoto, Y.Kakiguchi, M.Kawai, S.Kinoshita, T.Koike, Y.Ma, N.Maruyamai, M.Mimori, S.Minami, Y.Miura, K.Miwa, Y.Miyagi, T.Nagae, D.Nakajima, H.Noumi, K.Shirotori, T.Suzuki, T.Takahashi, T.N.Takahashi, H.Tamura, K.Tanida, N.Terada, A.Toyoda, K.Tsukada, M.Ukai, S.H.Zhou

Gamma-ray spectroscopy of 12ΛC via the (π+, K+) reaction

NUCLEAR REACTIONS 12C(π+, K+), E not given; measured E(kaon), I(kaon), Eγ, Iγ. 12C deduced Λ hypernucleus γ transitions.

doi: 10.1016/j.nuclphysa.2013.04.007
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2013NA16      J.Phys.Soc.Jpn. 82, 064201 (2013)

Y.Nagai, K.Hashimoto, Y.Hatsukawa, H.Saeki, S.Motoishi, N.Sato, M.Kawabata, H.Harada, T.Kin, K.Tsukada, T.K.Sato, F.Minato, O.Iwamoto, N.Iwamoto, Y.Seki, K.Yokoyama, T.Shiina, A.Ohta, N.Takeuchi, Y.Kawauchi, N.Sato, H.Yamabayashi, Y.Adachi, Y.Kikuchi, T.Mitsumoto, T.Igarashi

Generation of Radioisotopes with Accelerator Neutrons by Deuterons

NUCLEAR REACTIONS 100Mo(n, 2n), E<20 MeV; measured reaction products, Eγ, Iγ; deduced yields. Comparison with available data.

doi: 10.7566/JPSJ.82.064201
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2012HA05      Phys.Rev. C 85, 024611 (2012)

H.Haba, D.Kaji, Y.Kudou, K.Morimoto, K.Morita, K.Ozeki, R.Sakai, T.Sumita, A.Yoneda, Y.Kasamatsu, Y.Komori, A.Shinohara, H.Kikunaga, H.Kudo, K.Nishio, K.Ooe, N.Sato, K.Tsukada

Production of 265Sg in the 248Cm(22Ne, 5n)265Sg reaction and decay properties of two isomeric states in 265Sg

NUCLEAR REACTIONS 248Cm(22Ne, 5n)265Sg, E=228.8 MeV; measured evaporation residues, excitation function, production cross sections for isomers, αα, ααα and α(SF) correlations using RIKEN gas-filled recoil-ion separator GARIS. Comparison of cross sections with other 5n evaporation channel reactions, and HIVAP calculations.

RADIOACTIVITY 265,265mSg[from 248Cm(22Ne, 5n), E=228.8 MeV]; 261Rf, 261mRf(α), (SF)[from 265Sg α decay]; measured E(α), E(SF), I(α), T1/2, αα-coin, α(fragment) coin; deduced α and SF decay branching ratios from data for 79 α-α decay chains. 214Po, 252,253,254,255Fm, 257No(α); measured Eα.

doi: 10.1103/PhysRevC.85.024611
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2011AS03      Phys.Rev. C 83, 014315 (2011)

M.Asai, K.Tsukada, H.Haba, Y.Ishii, T.Ichikawa, A.Toyoshima, T.Ishii, Y.Nagame, I.Nishinaka, Y.Kojima, K.Sueki

Neutron one-quasiparticle states in 251Fm151 populated via the α decay of 255No

RADIOACTIVITY 255No(α)[from 248Cm(12C, 5n), E=77 MeV; measured Eα, Iα, Eγ, Iγ, αγ-coin, T1/2, level half-lives from delayed spectra. 251Fm; deduced levels, J, π, α hindrance factors, conversion coefficients, multipolarities, B(E2), configurations. Comparison of α hindrance factors with those from α decay of 251Cf and 253Fm.

NUCLEAR STRUCTURE 245Pu, 247Cm, 249Cf, 251Fm, 253No, 255Rf; calculated one quasiparticle neutron states in N=151 nuclei using macroscopic-microscopic approach with finite-range liquid drop model involving β2, β4, β6 and β8 deformation parameters.

doi: 10.1103/PhysRevC.83.014315
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2011BH10      J.Korean Phys.Soc. 59, 1461s (2011)

H.Bhang, S.Ajimura, K.Aoki, A.Banu, T.Fukuda, O.Hashimoto, J.I.Hwang, S.Kameoka, B.H.Kang, E.Kim, J.H.Kim, T.Maruta, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, S.Okada, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tshoo, K.Tsukada, T.Watanabe, H.J.Yim

The Weak Decay Widths of Λ Hypernuclei

NUCLEAR REACTIONS 12C(π+, K+), E at 1.05 GeV/c; measured E(K meson), En, In(t), np+-coin, time difference; deduced 12C hypernucleus states.

RADIOACTIVITY 12C Λ hypernucleus[from 12C(π+, K+)]; measured decay products; deduced mesonic, non-mesonic decay widths, T1/2, σ(En), σ(Ep), σ(θ). Compared with available data.

doi: 10.3938/jkps.59.1461
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2010KI15      Nucl.Phys. A835, 434c (2010)

M.Kim, S.Ajimura, K.Aoki, A.Banu, H.Bhang, T.Fukuda, O.Hashimoto, J.I.Hwang, S.Kameoka, B.H.Kang, E.Kim, J.H.Kim, T.Maruta, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, S.Okada, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tshoo, K.Tsukada, T.Watanabe, H.J.Yim

Coincidence measurement of the weak decay of 12ΛC and the three-body weak decay process (J-PARC 50GeV PS E18)

RADIOACTIVITY 12C(p), (n); measured hypernucleus decay particle spectra, Ep, Ip, En, In, pn-coin, pp-coin, nn-coin, pion spectra; deduced hypernucleus nucleon decay width. Non-mesonic weak decay.

doi: 10.1016/j.nuclphysa.2010.01.237
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2010MA72      Nucl.Phys. A835, 422c (2010)

Y.Ma, S.Ajimura, K.Aoki, M.Dairaku, Y.Y.Fu, H.Fujioka, T.Fukuda, K.Futatsukawa, K.Hosomi, W.Imoto, M.Kawai, Y.Kakiguchi, S.Kinoshita, T.Koike, N.Maruyama, M.Mimori, S.Minami, Y.Miura, K.Miwa, Y.Miyagi, T.Nagae, D.Nakajima, H.Noumi, K.Shirotori, T.Suzuki, T.Takahashi, T.N.Takahashi, H.Tamura, K.Tanida, N.Terada, A.Toyoda, K.Tsukada, M.Ukai, S.H.Zhou

Updated results on the 11ΛB and 12ΛC γ-ray spectroscopy study

NUCLEAR REACTIONS 12C(π+, K+), (π+, K+p), E at 1.05 GeV/c; measured hypernuclei Eγ, Iγ; deduced levels, J, π, γ-multipolarity, Λ binding energy.

doi: 10.1016/j.nuclphysa.2010.01.234
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2010TA10      Phys.Rev. C 81, 057303 (2010)

R.Takahashi, T.Ishii, M.Asai, D.Nagae, H.Makii, K.Tsukada, A.Toyoshima, Y.Ishii, M.Matsuda, A.Makishima, T.Shizuma, T.Kohno, M.Ogawa

In-beam γ-ray spectroscopy of 248, 250, 252Cf by neutron-transfer reactions using a Cf target

NUCLEAR REACTIONS 249,250,251Cf(18O, 16O), (18O, n16O), (18O, 17O), (18O, n17O), (18O, 18O), (18O, n18O), (18O, n18O), , E=153 MeV; measured Eγ, Iγ, γγ-, (particle)γ-coin. 248,250,252Cf; deduced levels, J, π, ground-state rotational bands, moments of inertia. Radioactive Cf target with 63% 249Cf, 13% 250Cf, 24% 251Cf.

doi: 10.1103/PhysRevC.81.057303
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2009HI03      Phys.Lett. B 674, 17 (2009)

K.Hirose, M.Ejima, T.Fujibayashi, Y.Fujii, K.Futatsukawa, O.Hashimoto, T.Ishikawa, S.Kameoka, H.Kanda, F.Kato, S.Kinoshita, T.Kinoshita, T.Kon, O.Konno, K.Maeda, A.Matsumura, Y.Miura, F.Miyahara, H.Miyase, T.Nakabayashi, S.N.Nakamura, H.Nomura, K.Nonaka, A.Ohtani, Y.Okayasu, M.Oyamada, A.Sasaki, H.Shimizu, T.Takahashi, T.Tamae, H.Tamura, T.Terasawa, H.Tsubota, K.Tsukada, D.Uchida, M.Ukai, M.Wakamatsu, T.Watanabe, H.Yamauchi, H.Yamazaki, K.Yawata

Study of double pion photoproduction on the deuteron

doi: 10.1016/j.physletb.2009.02.036
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2009KI15      Phys.Rev.Lett. 103, 182502 (2009)

M.Kim, S.Ajimura, K.Aoki, A.Banu, H.Bhang, T.Fukuda, O.Hashimoto, J.I.Hwang, S.Kameoka, B.H.Kang, E.Kim, J.H.Kim, T.Maruta, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, S.Okada, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tshoo, K.Tsukada, T.Watanabe, H.J.Yim

Three-Body Nonmesonic Weak Decay of the 12ΛC Hypernucleus

doi: 10.1103/PhysRevLett.103.182502
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2009MO12      J.Phys.Soc.Jpn. 78, 064201 (2009)

K.Morita, K.Morimoto, D.Kaji, H.Haba, K.Ozeki, Y.Kudou, N.Sato, T.Sumita, A.Yoneda, T.Ichikawa, Y.Fujimori, S.Goto, E.Ideguchi, Y.Kasamatsu, K.Katori, Y.Komori, H.Koura, H.Kudo, K.Ooe, A.Ozawa, F.Tokanai, K.Tsukada, T.Yamaguchi, A.Yoshida

Decay Properties of 266Bh and 262Db Produced in the 248Cm + 23Na Reaction

NUCLEAR REACTIONS 248Cm(23Na, 4n), (23Na, 5n), E=126, 130, 132 MeV; measured yields.

RADIOACTIVITY 266Bh(α); measured Eα, Iα.

doi: 10.1143/JPSJ.78.064201
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2176.


2008IS05      Phys.Rev. C 78, 054309 (2008)

T.Ishii, H.Makii, M.Asai, K.Tsukada, A.Toyoshima, M.Matsuda, A.Makishima, S.Shigematsu, J.Kaneko, T.Shizuma, H.Toume, I.Hossain, T.Kohno, M.Ogawa

Observation of high-j quasiparticle states in 249Cm by in-beam γ-ray spectroscopy using heavy-ion transfer reactions

NUCLEAR REACTIONS 248Cm(16O, 15O), (18O, 17O), E=162 MeV; 248Cm(13C, 12C), E=120 MeV; measured Eγ, Iγ, γγ-coin, half-lives, σ. 249Cm; deduced levels, J, π, bands, configurations.

doi: 10.1103/PhysRevC.78.054309
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2126. Data from this article have been entered in the XUNDL database. For more information, click here.


2008TO05      Radiochim.Acta 96, 323 (2008)

A.Toyoshima, Y.Kasamatsu, Y.Kitatsuji, K.Tsukada, H.Haba, A.Shinohara, Y.Nagame

Development of an electrochemistry apparatus for the heaviest elements

doi: 10.1524/ract.2008.1498
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2008TS04      Phys.Rev. C 78, 014001 (2008); Erratum Phys.Rev. C 83, 039904 (2011)

K.Tsukada, T.Takahashi, T.Watanabe, Y.Fujii, K.Futatsukawa, O.Hashimoto, K.Hirose, K.Ito, S.Kameoka, H.Kanda, K.Maeda, A.Matsumura, Y.Miura, H.Miyase, S.N.Nakamura, H.Nomura, K.Nonaka, T.Osaka, Y.Okayasu, H.Tamura, H.Tsubota, M.Ukai, H.Yamauchi, M.Wakamatsu, T.Ishikawa, T.Kinoshita, F.Miyahara, T.Nakabayashi, H.Shimizu, T.Tamae, H.Yamazaki, A.Sasaki, O.Konno, P.Bydzovsky, M.Sotona

Photoproduction of neutral kaons on a liquid deuterium target in the threshold region

NUCLEAR REACTIONS 2H(γ, K0), E=0.8-1.1 GeV; measured mass spectra, momentum distributions, σ.

doi: 10.1103/PhysRevC.78.014001
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetK2113.


2007BH06      Eur.Phys.J. A 33, 259 (2007)

H.Bhang, S.Ajimura, K.Aoki, A.Banu, T.Fukuda, O.Hashimoto, J.I.Hwang, S.Kameoka, B.H.Kang, E.H.Kim, J.H.Kim, M.Kim, T.Maruta, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, S.Okada, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, S.Shin, T.Takahashi, H.Tamura, K.Tanida, A.Toyota, K.Tsukada, T.Watanabe, H.J.Yim

The quenching of nucleon yields in the nonmesonic weak decay of Λ-hypernuclei and the three-body weak decay process

NUCLEAR REACTIONS 5He, 12C(π+, K+), E at 1.05 GeV/c; measured Ep, En and angular distributions in hypernuclei decay and discussed quenching effect. Comparison with intra-nuclear cascade calculations.

doi: 10.1140/epja/i2007-10470-x
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2007FU07      Chin.Phys.Lett. 24, 2216 (2007)

Y.-Y.Fu, S-H.Zhou, T.Koike, S.Kinoshita, Y.Ma, Y.Miura, K.Miwa, Y.Miyagi, K.Shirotori, T.Suzuki, H.Tamura, K.Tsukada, M.Ukai, K.Futatsukawa, K.Hosomi, M.Kawai, M.Mimori, N.Terada, N.Maruyama, K.Aoki, H.Fujioka, Y.Kakiguchi, T.Nagae, D.Nakajima, H.Noumi, T.Takahashi, T.N.Takahashi, A.Toyota, M.Dairaku, T.Fukuda, S.Minami, W.Imoto, S.Ajimura, K.Tanida

Measurement of Gamma-Rays from 11ΛB and 12LC

NUCLEAR REACTIONS 12C(π+, K+), (π+, K+p), E at 1.05 GeV/c; measured Eγ, Iγ from 12ΛC, 11λB decays. Deduced Λ-N interaction parameters.

doi: 10.1088/0256-307X/24/8/017
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2007HA57      Eur.Phys.J. A 34, 363 (2007)

H.Hayashi, Y.Akita, O.Suematsu, M.Shibata, M.Asai, T.K.Sato, S.Ichikawa, I.Nishinaka, Y.Nagame, A.Osa, K.Tsukada, T.Ishii, Y.Kojima, A.Taniguchi

Qβ measurements of 158, 159Pm, 159, 161Sm, 160-165Eu, 163Gd and 166Tb using a total absorption BGO detector

RADIOACTIVITY 158,159Pm, 159,161Sm, 160,161,162,163,164,165Eu, 163Gd, 166Tb(β-) [from 238U(p, F), E=24 MeV and subsequent decay]; measured Eγ, Iγ, Eβ, Iβ; deduced Qβ, mass excess and two-neutron separation energies. Mass separator.

doi: 10.1140/epja/i2006-10522-9
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Data from this article have been entered in the XUNDL database. For more information, click here.


2007HO24      J.Nucl.Radiochem.Sci. 8, 73 (2007)

S.Hofmann, H.Ikezoe, F.P.Hessberger, D.Ackermann, S.Antalic, V.F.Comas, Z.Gan, S.Heinz, J.A.Heredia, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, B.Lommel, M.Mazzocco, S.Mitsuoka, Y.Nagame, T.Ohtsuki, A.G.Popeko, S.Saro, H.J.Schott, B.Sulignano, A.Svirikhin, K.Tsukada, K.Tsuruta, A.V.Yeremin

Measurement of Evaporation Residue and Fission Cross Sections of the Reaction 30Si + 238U at Subbarrier Energies

NUCLEAR REACTIONS 238U(30Si, X), E=140-183 MeV; measured fission fragment energy and mass distributions, fission cross sections. Compared results to model calculations.


2007IS09      Phys.Rev. C 76, 011303 (2007)

T.Ishii, H.Makii, M.Asai, H.Koura, S.Shigematsu, K.Tsukada, A.Toyoshima, M.Matsuda, A.Makishima, J.Kaneko, H.Toume, I.Hossain, T.Shizuma, S.Ichikawa, T.Kohno, M.Ogawa

Ground-state bands of neutron-rich 236Th and 242U nuclei and implication of spherical shell closure at N = 164

NUCLEAR REACTIONS 238U(18O, 20Ne), E=200 MeV; 244Pu(16O, 20Ne), E=162 MeV; measured Eγ, Iγ, (particle)γ-coinc. 236Th, 242U deduced levels, J, π.

doi: 10.1103/PhysRevC.76.011303
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2007IS11      Phys.Atomic Nuclei 70, 1457 (2007)

T.Ishii, S.Shigematsu, H.Makii, M.Asai, K.Tsukada, A.Toyoshima, M.Matsuda, A.Makishima, T.Shizuma, J.Kaneko, I.Hossain, H.Toume, M.Ohara, S.Ichikawa, T.Kohno, M.Ogawa

In-beam γ-ray study of the neutron-rich nuclei 240U, 246Pu, and 250Cm produced by the (18O, 16O) reaction

NUCLEAR REACTIONS U(18O, 16O)240U, E=200 MeV; 244Pu(18O, 16O)246Pu, E=200 MeV; 248Cm(18O, 16O), e=200 meV; measured Eγ, Iγ, (particle)γ-coinc. 240U, 246Pu, 250Cm deduced levels, J, π, moments of inertia.

doi: 10.1134/S1063778807080224
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2007MA71      Eur.Phys.J. A 33, 243 (2007)

Y.Ma, S.Ajimura, K.Aoki, M.Dairaku, Y.Y.Fu, H.Fujioka, T.Fukuda, K.Futatsukawa, K.Hosomi, W.Imoto, M.Kawai, Y.Kakiguchi, S.Kinoshita, T.Koike, N.Maruyama, M.Mimori, S.Minami, Y.Miura, K.Miwa, Y.Miyagi, T.Nagae, D.Nakajima, H.Noumi, K.Shirotori, T.Suzuki, T.Takahashi, T.N.Takahashi, H.Tamura, K.Tanida, N.Terada, A.Toyoda, K.Tsukada, M.Ukai, S.H.Zhou

γ-ray spectroscopy study of 11ΛB and 12ΛC

NUCLEAR REACTIONS 12C(π+, K+), E= MeV; measured hypernuclear mass spectrum, Eγ, Iγ. 11B, 12C deduced hypernuclei levels, J, π. Hyperball2 array.

doi: 10.1140/epja/i2007-10471-9
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2007MA72      Eur.Phys.J. A 33, 255 (2007)

T.Maruta, S.Ajimura, K.Aoki, A.Banu, H.Bhang, T.Fukuda, O.Hashimoto, I.Hwang, S.Kameoka, B.H.Kang, E.H.Kim, J.H.Kim, M.J.Kim, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, S.Okada, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tsukada, T.Watanabe

Decay asymmetry in non-mesonic weak decay of light Λ-hypernuclei

NUCLEAR REACTIONS 6Li, 12C(π+, K+), E at 1.05 GeV/c; measured excitation energy and pion spectra, Ep, Ed, En from hypernucleus decay; deduced decay asymmetry parameter.

doi: 10.1140/epja/i2007-10478-2
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2007MA82      Phys.Rev. C 76, 061301 (2007)

H.Makii, T.Ishii, M.Asai, K.Tsukada, A.Toyoshima, M.Matsuda, A.Makishima, J.Kaneko, H.Toume, S.Ichikawa, S.Shigematsu, T.Kohno, M.Ogawa

Z dependence of the N = 152 deformed shell gap: In-beam γ-ray spectroscopy of neutron-rich 245, 246Pu

NUCLEAR REACTIONS 244Pu(18O, 17O), (18O, 16O), E=162 MeV; measured Eγ, Iγ, γγ-coin, half-lives. 245,246Pu; deduced levels, J, π, configurations. Compared with experimental and calculated values for the first 2+ level energy in 232,234,236,238,240,242U, 234,236,238,240,242,244,248Pu, 240,242,244,246,248,250Cm, 244,246,248,250,252,254Cf, 250,252,254,256Fm, 248,250,252,254,256,258No. 247Cm, 249Cf, 251Fm, 253No; systematics.

doi: 10.1103/PhysRevC.76.061301
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2007WA31      Phys.Lett. B 651, 269 (2007)

T.Watanabe, P.Bydzovsky, K.Dobashi, S.Endo, Y.Fujii, O.Hashimoto, T.Ishikawa, K.Itoh, H.Kanda, M.Katoh, T.Kinoshita, O.Konno, K.Maeda, A.Matsumura, F.Miyahara, H.Miyase, T.Miyoshi, K.Mizunuma, Y.Miura, S.N.Nakamura, H.Nomura, Y.Okayasu, T.Osaka, M.Oyamada, A.Sasaki, T.Satoh, H.Shimizu, M.Sotona, T.Takahashi, T.Tamae, H.Tamura, T.Terasawa, H.Tsubota, K.Tsukada, M.Ukai, M.Wakamatsu, H.Yamauchi, H.Yamazaki

Photo-production of neutral kaons on 12C in the threshold region

doi: 10.1016/j.physletb.2007.06.033
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2006AS03      Phys.Rev. C 73, 067301 (2006)

M.Asai, K.Tsukada, S.Ichikawa, M.Sakama, H.Haba, I.Nishinaka, Y.Nagame, S.Goto, Y.Kojima, Y.Oura, M.Shibata

α decay of 238Cm and the new isotope 237Cm

NUCLEAR REACTIONS 237Np(6Li, X), E=52-59 MeV; measured delayed Eα, Iα; deduced evidence for 236,238Pu, 237Am, 237,238Cm. Mass separator.

RADIOACTIVITY 238Cm(α) [from 237Np(6Li, 5n)]; measured Eα, T1/2. 234Pu deduced 2+ excited state energy. Systematics of 2+ levels discussed.

doi: 10.1103/PhysRevC.73.067301
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2006IS07      J.Phys.Soc.Jpn. 75, 043201 (2006)

T.Ishii, S.Shigematsu, H.Makii, M.Asai, K.Tsukada, A.Toyoshima, M.Matsuda, A.Makishima, T.Shizuma, J.Kaneko, I.Hossain, H.Toume, M.Ohara, S.Ichikawa, T.Kohno, M.Ogawa

Ground-State Band of the Neutron-Rich Transuranium Nucleus 250Cm154

NUCLEAR REACTIONS 248Cm(18O, 16O), E=162 MeV; measured Eγ, Iγ, (particle)γ-coin. 250Cm deduced levels, J, π.

doi: 10.1143/JPSJ.75.043201
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2006KA06      Phys.Rev.Lett. 96, 062301 (2006)

B.H.Kang, H.Bhang, E.H.Kim, J.H.Kim, M.J.Kim, H.J.Yim, S.Ajimura, Y.Miyake, K.Aoki, T.Nagae, H.Noumi, H.Outa, P.K.Saha, Y.Sato, M.Sekimoto, A.Toyoda, A.Banu, T.Fukuda, O.Hashimoto, S.Kameoka, Y.Miura, S.N.Nakamura, Y.Okayasu, T.Takahashi, H.Tamura, K.Tsukada, T.Watanabe, J.I.Hwang, T.Maruta, M.Nakamura, S.Okada, H.Park, K.Tanida

Exclusive Measurement of the Nonmesonic Weak Decay of the 5ΛHe Hypernucleus

NUCLEAR REACTIONS 6Li(π+, K+), E at 1.05 GeV/c; measured excitation energy spectra, Ep, En, np-, nn-coin, angular correlations. 5He deduced hypernucleus nonmesonic weak decay widths.

doi: 10.1103/PhysRevLett.96.062301
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2006KI14      Phys.Lett. B 641, 28 (2006)

M.J.Kim, S.Ajimura, K.Aoki, A.Banu, H.Bhang, T.Fukuda, O.Hashimoto, J.I.Hwang, S.Kameoka, B.H.Kang, E.H.Kim, J.H.Kim, T.Maruta, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, S.Okada, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, S.Shin, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tsukada, T.Watanabe, H.J.Yim

Coincidence measurement of the nonmesonic weak decay of 12ΛC

NUCLEAR REACTIONS 12C(π+, K+), E at 1.05 GeV/c; measured excitation energy spectra, Ep, En, np-, nn-coin, angular correlations. 12C deduced hypernucleus nonmesonic weak decay widths.

doi: 10.1016/j.physletb.2006.08.012
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2006NI09      Phys.Atomic Nuclei 69, 1399 (2006)

K.Nishio, H.Ikezoe, M.Asai, K.Tsukada, S.Mitsuoka, K.Tsuruta, K.Satou, C.J.Lin, T.Ohsawa

Evidence of Complete Fusion in the Subbarrier 16O + 238U Reaction

NUCLEAR REACTIONS 238U(16O, 4n), (16O, 5n), (16O, 6n), E(cm)=70-95 MeV; measured evaporation residue σ; deduced reaction mechanism features. Comparison with statistical model predictions.

RADIOACTIVITY 248,249,250Fm(α) [from 238U(16O, xn)]; measured Eα, T1/2.

doi: 10.1134/S1063778806080187
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2006NI10      Eur.Phys.J. A 29, 281 (2006)

K.Nishio, S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, V.F.Comas, Z.Gan, S.Heinz, J.A.Heredia, H.Ikezoe, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, B.Lommel, R.Mann, M.Mazzocco, S.Mitsuoka, Y.Nagame, T.Ohtsuki, A.G.Popeko, S.Saro, H.J.Schott, B.Sulignano, A.Svirikhin, K.Tsukada, K.Tsuruta, A.V.Yeremin

Measurement of evaporation residue cross-sections of the reaction 30Si + 238U at subbarrier energies

NUCLEAR REACTIONS 238U(30Si, F), (30Si, 3n), (30Si, 4n), (30Si, 5n), E=145.5, 151.2, 163.5 MeV; measured fission and evaporation residue σ.

RADIOACTIVITY 263,265Sg, 259Rf, 255No(α) [from 238U(30Si, xn) and subsequent decay]; measured Eα, T1/2. 262,264Sg, 261Rf(SF) [from 238U(30Si, xn) and subsequent decay]; measured T1/2, fission fragments kinetic energy.

doi: 10.1140/epja/i2006-10091-y
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2005AS01      Eur.Phys.J. A 23, 395 (2005)

M.Asai, M.Sakama, K.Tsukada, S.Ichikawa, H.Haba, I.Nishinaka, Y.Nagame, S.Goto, Y.Kojima, Y.Oura, H.Nakahara, M.Shibata, K.Kawade

Proton-neutron configurations in 236g, mAm and its EC-decay daughter 236Pu

RADIOACTIVITY 236,236mAm(EC) [from 235U(6Li, 5n)]; measured Eγ, Iγ, γγ-, (X-ray)γ-coin, T1/2; deduced log ft. 236Pu deduced levels, J, π, configurations, β-feeding intensities, B(E1), B(M1). 236Am deduced isomeric state J, π, configuration.

doi: 10.1140/epja/i2004-10096-6
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2005AS05      Phys.Rev.Lett. 95, 102502 (2005)

M.Asai, K.Tsukada, M.Sakama, S.Ichikawa, T.Ishii, Y.Nagame, I.Nishinaka, K.Akiyama, A.Osa, Y.Oura, K.Sueki, M.Shibata

Experimental Identification of Spin-Parities and Single-Particle Configurations in 257No and Its α-Decay Daughter 253Fm

RADIOACTIVITY 257No(α) [from 248Cm(13C, 4n)]; measured Eγ, Eα, E(ce), αγ-, (ce)α-coin; deduced branching ratios. 253Fm deduced levels, J, π, ICC, configurations. 257No deduced ground-state J, π, configuration.

doi: 10.1103/PhysRevLett.95.102502
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2005IC02      Phys.Rev. C 71, 067302 (2005)

S.Ichikawa, M.Asai, K.Tsukada, H.Haba, Y.Nagame, M.Shibata, M.Sakama, Y.Kojima

β-decay half-lives of new neutron-rich rare-earth isotopes 159Pm, 162Sm, and 166Gd

RADIOACTIVITY 159Pm, 162Sm, 166Gd, 166Tb(β-) [from 238U(p, F)]; measured Eγ, Iγ, βγ-, γγ-coin, T1/2. 166Tb deduced levels, β-feeding intensities.

doi: 10.1103/PhysRevC.71.067302
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2005KA23      Nucl.Phys. A754, 173c (2005)

S.Kameoka, S.Ajimura, K.Aoki, A.Banu, H.C.Bhang, T.Fukuda, O.Hashimoto, J.I.Hwang, B.H.Kang, E.H.Kim, J.H.Kim, M.J.Kim, T.Maruta, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, S.Okada, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tsukada, T.Watanabe, H.J.Yim

Measurement of the π- decay width of 5ΛHe

NUCLEAR REACTIONS 6Li, 12C(π+, K+), (π+, pX), E at 1.05 GeV/c; measured excitation energy spectra, proton spectra following hypernucleus decay. 5He deduced hypernucleus decay width.

doi: 10.1016/j.nuclphysa.2005.03.016
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2005MA45      Nucl.Phys. A754, 168c (2005)

T.Maruta, S.Ajimura, K.Aoki, A.Banu, H.Bhang, T.Fukuda, O.Hashimoto, J.I.Hwang, S.Kameoka, B.H.Kang, E.H.Kim, J.H.Kim, M.J.Kim, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, S.Okada, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tsukada, T.Watanabe, H.J.Yim

Proton asymmetry in non-mesonic weak decay of light hypernuclei

RADIOACTIVITY 5He, 11B, 12C; measured proton decay asymmetry parameters from polarized hypernuclei.

doi: 10.1016/j.nuclphysa.2005.02.159
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2005NA46      Radiochim.Acta 93, 519 (2005)

Y.Nagame, K.Tsukada, M.Asai, A.Toyoshima, K.Akiyama, Y.Ishii, T.Kaneko-Sato, M.Hirata, I.Nishinaka, S.Ichikawa, H.Haba, S.Enomoto, K.Matsuo, D.Saika, Y.Kitamoto, H.Hasegawa, Y.Tani, W.Sato, A.Shinohara, M.Ito, J.Saito, S.Goto, H.Kudo, H.Kikunaga, N.Kinoshita, A.Yokoyama, K.Sueki, Y.Oura, H.Nakahara, M.Sakama, M.Schadel, W.Bruchle, J.V.Kratz

Chemical studies on rutherfordium (Rf) at JAERI

NUCLEAR REACTIONS 248Cm(18O, 5n), E ≈ 90-100 MeV; measured excitation function. Chemical properties of rutherfordium studied.

doi: 10.1524/ract.2005.93.9-10.519
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2005OK02      Nucl.Phys. A752, 196c (2005)

S.Okada, S.Ajimura, K.Aoki, A.Banu, H.C.Bhang, T.Fukuda, O.Hashimoto, J.I.Hwang, S.Kameoka, B.H.Kang, E.H.Kim, J.H.Kim, M.J.Kim, T.Maruta, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tsukada, T.Watanabe, H.J.Yim

Nucleon-nucleon coincidence measurement in the non-mesonic weak decay of 5ΛHe and 12ΛC hypernuclei

NUCLEAR REACTIONS 6Li(π+, K+p), 12C(π+, K+), E at 1.05 GeV/c; measured nucleon-nucleon pair spectra, yields following hypernucleus decay; deduced hyperon decay widths.

doi: 10.1016/j.nuclphysa.2005.02.035
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2005OK04      Nucl.Phys. A754, 178c (2005)

S.Okada, S.Ajimura, K.Aoki, A.Banu, H.C.Bhang, T.Fukuda, O.Hashimoto, J.I.Hwang, S.Kameoka, B.H.Kang, E.H.Kim, J.H.Kim, M.J.Kim, T.Maruta, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tsukada, T.Watanabe, H.J.Yim

π0 decay branching ratios of 5ΛHe and 12ΛC hypernuclei

NUCLEAR REACTIONS 6Li, 12C(π+, K+), E at 1.05 GeV/c; measured excitation energy spectra, γ-spectra from neutral pion decay. 5He, 12C deduced hypernucleus decay branching ratios.

doi: 10.1016/j.nuclphysa.2005.02.128
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2005OU02      Nucl.Phys. A754, 157c (2005)

H.Outa, S.Ajimura, K.Aoki, A.Banu, H.C.Bhang, T.Fukuda, O.Hashimoto, J.I.Hwang, S.Kameoka, B.H.Kang, E.H.Kim, J.H.Kim, M.J.Kim, T.Maruta, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, S.Okada, Y.Okayasu, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tsukada, T.Watanabe, H.J.Yim

Hypernuclear weak decay experiments at KEK: n-n and n-p coincidence measurement

NUCLEAR REACTIONS 6Li, 12C(π+, K+), E not given; measured hypernucleus excitation energy spectra, nn-, np-coin following hypernucleus decay. 5He, 12C deduced hypernucleus decay widths, branching ratios.

doi: 10.1016/j.nuclphysa.2005.03.007
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2005WA19      Nucl.Phys. A754, 327c (2005)

T.Watanabe, S.Endo, Y.Fujii, O.Hashimoto, K.Hirose, T.Ishikawa, K.Ito, H.Kanda, M.Katoh, T.Kinoshita, O.Konno, K.Maeda, A.Matsumura, Y.Miura, F.Miyahara, H.Miyase, K.Mizunuma, T.Nakabayashi, S.N.Nakamura, H.Nomura, Y.Okayasu, T.Osaka, A.Otani, M.Oyamada, A.Sasaki, T.Sato, H.Shimizu, T.Takahashi, T.Tamae, H.Tamura, T.Terasawa, H.Tsubota, K.Tsukada, M.Ukai, M.Utoyama, M.Wakamatsu, H.Yamauchi, Y.Yamaguchi, Y.Yamamoto, H.Yamazaki

K0 photoproduction on 12C in the threshold region

NUCLEAR REACTIONS 12C(γ, K0X), E=0.8-1.1 GeV; measured hyperon production associated invariant mass spectra, kaon production σ.

doi: 10.1016/j.nuclphysa.2005.02.157
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2004AS12      Eur.Phys.J. A 22, 411 (2004)

M.Asai, M.Sakama, K.Tsukada, S.Ichikawa, H.Haba, I.Nishinaka, Y.Nagame, S.Goto, Y.Kojima, Y.Oura, H.Nakahara, M.Shibata, K.Kawade

EC and α decays of 235Am

RADIOACTIVITY 235Am(EC), (α) [from 233U(6Li, 4n)]; measured Eγ, Iγ, Eα, X-ray spectra, γγ-, αγ-coin; deduced log ft, Qα. 235Am deduced ground-state J, π. 235Pu deduced levels, J, π, ICC, β-feeding intensities. 231Np deduced level energy. Level systematics in neighboring nuclides discussed.

doi: 10.1140/epja/i2004-10044-6
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2004MI17      Nucl.Instrum.Methods Phys.Res. A523, 96 (2004)

H.Miyahara, K.Katoh, N.Marnada, K.Ikeda, K.Fujiki, I.Nishinaka, K.Tsukada, Y.Nagame, M.Asai, S.-I.Ichikawa, H.Haba

Emission probability measurement of principal γ-rays of 147Eu

RADIOACTIVITY 147Eu(β+), (EC) [from 147Sm(p, n)]; measured Eγ, Iγ, βγ-coin; deduced γ-ray emission probabilities, electron capture branching ratio. 147Sm levels deduced feeding intensities.

doi: 10.1016/j.nima.2003.12.029
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2004MI43      Nucl.Instrum.Methods Phys.Res. A533, 404 (2004)

H.Miyahara, K.Katoh, K.Ikeda, K.Fujiki, I.Nishinaka, K.Tsukada, Y.Nagame, M.Asai, S.Ichikawa, H.Haba

Gamma-ray emission probability measurement of 149Eu

RADIOACTIVITY 149Eu(EC) [from 149Sm(p, n)]; measured Eγ, Iγ; deduced branching ratios, emission probabilities. 149Sm deduced transition intensities, internal conversion probabilities.

doi: 10.1016/j.nima.2004.06.171
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2004NA10      Nucl.Phys. A734, 124 (2004)

Y.Nagame, H.Haba, K.Tsukada, M.Asai, A.Toyoshima, S.Goto, K.Akiyama, T.Kaneko, M.Sakama, M.Hirata, T.Yaita, I.Nishinaka, S.Ichikawa, H.Nakahara

Chemical studies of the heaviest elements

doi: 10.1016/j.nuclphysa.2004.01.021
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2004NI10      Phys.Rev.Lett. 93, 162701 (2004)

K.Nishio, H.Ikezoe, Y.Nagame, M.Asai, K.Tsukada, S.Mitsuoka, K.Tsuruta, K.Satou, C.J.Lin, T.Ohsawa

Evidence of Complete Fusion in the Sub-Barrier 16O + 238U Reaction

NUCLEAR REACTIONS 238U(16O, 4n), (16O, 5n), (16O, 6n), E(cm) ≈ 70-105 MeV; measured evaporation residue σ; deduced complete fusion at sub-barrier energies, role of orientation and deformation. Comparison with statistical model predictions.

doi: 10.1103/PhysRevLett.93.162701
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2004OK01      Phys.Lett. B 597, 249 (2004)

S.Okada, S.Ajimura, K.Aoki, A.Banu, H.C.Bhang, T.Fukuda, O.Hashimoto, J.I.Hwang, S.Kameoka, B.H.Kang, E.H.Kim, J.H.Kim, M.J.Kim, T.Maruta, Y.Miura, Y.Miyake, T.Nagae, M.Nakamura, S.N.Nakamura, H.Noumi, Y.Okayasu, H.Outa, H.Park, P.K.Saha, Y.Sato, M.Sekimoto, T.Takahashi, H.Tamura, K.Tanida, A.Toyoda, K.Tsukada, T.Watanabe, H.J.Yim

Neutron and proton energy spectra from the non-mesonic weak decays of 5ΛHe and 12ΛC

NUCLEAR REACTIONS 6Li, 12C(π+, K+), E at 1.05 GeV/c; measured hypernucleus excitation energy spectra, En, Ep, yield ratios following hypernucleus decay. 5He, 12C deduced hypernucleus decay widths.

doi: 10.1016/j.physletb.2004.07.031
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2004SA05      Phys.Rev. C 69, 014308 (2004)

M.Sakama, M.Asai, K.Tsukada, S.Ichikawa, I.Nishinaka, Y.Nagame, H.Haba, S.Goto, M.Shibata, K.Kawade, Y.Kojima, Y.Oura, M.Ebihara, H.Nakahara

α-decays of neutron-deficient americium isotopes

RADIOACTIVITY 233,234,235,236Am, 229Np(α) [from 233,235U(6Li, xn) and subsequent decay]; measured Eα, Iα, T1/2, Eγ, X-ray spectra, αγ-coin; deduced hindrance factors. 233,235,236Am deduced Qα. Mass separator.

NUCLEAR REACTIONS 235U(6Li, 5n), 233U(6Li, 4n), (6Li, 5n), (6Li, 6n), E ≈ 34-60 MeV; measured production σ.

doi: 10.1103/PhysRevC.69.014308
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2004VO24      Radiochim.Acta 92, 855 (2004)

A.von Zweidorf, R.Angert, W.Bruchle, S.Burger, K.Eberhardt, R.Eichler, H.Hummrich, E.Jager, H.-O.Kling, J.V.Kratz, B.Kuczewski, G.Langrock, M.Mendel, U.Rieth, M.Schadel, B.Schausten, E.Schimpf, P.Thorle, N.Trautmann, K.Tsukada, N.Wiehl, G.Wirth

Evidence for the formation of sodium hassate(VIII)

NUCLEAR REACTIONS 248Cm(26Mg, xn), E=144-149 MeV; measured delayed αα-coin; deduced evidence for 269,270Hs. Radiochemical analysis.

RADIOACTIVITY 269,270Hs, 265,266Sg, 257No(α); 261,262Rf(SF) [from 248Cm(26Mg, xn) and subsequent decay]; measured Eα, T1/2.

doi: 10.1524/ract.92.12.855.55112
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2003AS01      Eur.Phys.J. A 16, 17 (2003)

M.Asai, K.Tsukada, S.Ichikawa, M.Sakama, H.Haba, Y.Nagame, I.Nishinaka, K.Akiyama, A.Toyoshima, T.Kaneko, Y.Oura, Y.Kojima, M.Shibata

Identification of the new isotope 241Bk

NUCLEAR REACTIONS 239Pu(6Li, 4n), E=34-42 MeV; measured prompt and delayed Eγ, Iγ, (X-ray)γ-, (recoil)γ-coin; deduced evidence for 241Bk. Isotope separator.

RADIOACTIVITY 241Bk(EC) [from 239Pu(6Li, 4n)]; measured Eγ, Iγ, (X-ray)γ-coin, T1/2; deduced ground-state configuration.

doi: 10.1140/epja/i2002-10112-y
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2003GO01      J.Radioanal.Nucl.Chem. 255, 73 (2003)

S.Goto, D.Kaji, I.Nishinaka, Y.L.Nagame, S.Ichikawa, K.Tsukada, M.Asai, H.Haba, S.Mitsuoka, K.Nishio, M.Sakama, Y.Zhao, K.Sueki, K.Tanikawa, K.Takamiya, H.Kudo, H.Nakahara

Characteristics of the asymmetric mass distribution in proton-induced fission of actinides

NUCLEAR REACTIONS 232Th, 233,235,238U(p, F), E=13, 15 MeV; measured fission fragment mass distributions; deduced fragment shell structure effects.

doi: 10.1023/A:1022271529219
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2003NA10      Yad.Fiz. 66, 1167 (2003); Phys.Atomic Nuclei 66, 1131 (2003)

Y.Nagame, M.Asai, H.Haba, K.Tsukada, I.Nishinaka, S.Goto, A.Toyoshima, K.Akiyama, M.Sakama, Y.L.Zhao, S.Ichikawa, H.Nakahara

Heavy Element Nuclear Chemistry at JAERI

NUCLEAR REACTIONS 248Cm(18O, 5n), E=92-99 MeV; 248Cm(19F, 5n), E=106 MeV; measured σ.

RADIOACTIVITY 233,234,235,236,236mAm, 237,238Cm(α), (EC) [from 233,235U, 237Np(6Li, xn)]; measured T1/2, Eα, α-branching ratios.

doi: 10.1134/1.1586427
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2003NI01      Phys.Rev. C 67, 014604 (2003)

K.Nishio, H.Ikezoe, Y.Nagame, S.Mitsuoka, I.Nishinaka, L.Duan, K.Satou, S.Goto, M.Asai, H.Haba, K.Tsukada, N.Shinohara, S.Ichikawa, T.Ohsawa

Fragment mass distribution of the 239Pu(d, pf) reaction via the superdeformed β-vibrational resonance

NUCLEAR REACTIONS 239Pu(d, pF), E=13.5 MeV; measured Ep, (fragment)p-coin, fission fragment mass yields; deduced mass distribution for fission from superdeformed resonance. 240Pu deduced fission mechanism features.

doi: 10.1103/PhysRevC.67.014604
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2003TA32      Nucl.Phys. A721, 991c (2003)

T.Takahashi, Y.Fujii, O.Hashimoto, K.Itoh, H.Kanda, M.Katoh, T.Kinoshita, O.Konno, K.Maeda, H.Miyase, K.Mizunuma, S.N.Nakamura, T.Osaka, A.Sasaki, T.Tamae, H.Tamura, T.Terasawa, H.Tsuboda, K.Tsukada, M.Ukai, M.Wakamatsu, T.Watanabe, H.Yamazaki, and the NKS Collaboration

Photoproduction of Neutral Kaons on C in the Threshold Region

NUCLEAR REACTIONS 12C(γ, K0), E=0.8-1.1 GeV; measured missing mass spectrum.

doi: 10.1016/S0375-9474(03)01267-3
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2003ZH05      J.Radioanal.Nucl.Chem. 255, 67 (2003)

Y.L.Zhao, I.Nishinaka, Y.Nagame, K.Tsukada, K.Sueki, S.Goto, M.Tanikawa, H.Nakahara

Primary fragment mass-yield distribution for asymmetric fission path of heavy nuclei

NUCLEAR REACTIONS 232Th, 238U, 244Pu, 248Cm(p, F), E=15.0 MeV; measured fission fragment mass distributions, average total kinetic energy; deduced fragment shell structure effects.

doi: 10.1023/A:1022219512380
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1974.


2002AS08      J.Nucl.Radiochem.Sci. 3, No 1, 187 (2002)

M.Asai, M.Sakama, K.Tsukada, S.Ichikawa, H.Haba, I.Nishinaka, Y.Nagame, S.Goto, K.Akiyama, A.Toyoshima, Y.Kojima, Y.Oura, H.Nakahara, M.Shibata, K.Kawade

Decay Studies of Neutron-deficient Am, Cm, and Bk Nuclei Using an On-line Isotope Separator

RADIOACTIVITY 235,236Am(EC) [from 233,235U(6Li, xn)]; measured prompt and delayed Eγ, Iγ, γγ-coin; deduced log ft. 235,236Pu deduced levels, J, π, configurations. 233,234,235,236Am, 237,238Cm(α) [from 233,235U, 237Np(6Li, xn)]; measured Eα, T1/2. Isotope separator.

Data from this article have been entered in the XUNDL database. For more information, click here.


2002GO43      J.Nucl.Radiochem.Sci. 3, No 1, 63 (2002)

S.Goto, D.Kaji, I.Nishinaka, Y.Nagame, S.Ichikawa, K.Tsukada, M.Asai, H.Haba, S.Mitsuoka, K.Nishio, M.Sakama, Y.L.Zhao, K.Sueki, M.Tanikawa, K.Takamiya, H.Kudo, H.Nakahara

Systematic Studies of Asymmetric Mass Distributions in Proton-induced Fission of Actinides

NUCLEAR REACTIONS 239,242,244Pu(p, F), E=13 MeV; measured fission fragment kinetic energy and mass distributions; deduced shell effects.


2002IC04      Nucl.Instrum.Methods Phys.Res. B187, 548 (2002)

S.Ichikawa, K.Tsukada, M.Asai, H.Haba, M.Sakama, Y.Kojima, M.Shibata, Y.Nagame, Y.Oura, K.Kawade

Performance of the multiple target He/PbI2 aerosol jet system for mass separation of neutron-deficient actinide isotopes

NUCLEAR REACTIONS 233U(6Li, 4n)235Am, E=52 MeV; 141Pr(6Li, 4n)143Sm, E=37.2 MeV; 237Np(6Li, 6n)237Cm, E=62 MeV; measured reaction products, Eα, Iα. 233,234,235,236Am; decay products energies and T1/2. The isotope separator on line (JAERI-ISOL) at the JAERI tandem accelerator facility.

doi: 10.1016/s0168-583x(01)01145-4
Citations: PlumX Metrics


2002KA28      J.Nucl.Sci.Technol.(Tokyo) 39, 329 (2002)

K.Katoh, H.Miyahara, N.Marnada, N.Ueda, K.Ikeda, K.Fujiki, H.Haba, I.Nishinaka, K.Tsukada, Y.Nagame, M.Asai, S.-I.Ichikawa

Production of 147Eu for Gamma-Ray Emission Probability Measurement

NUCLEAR REACTIONS 147Sm(p, n), (p, 2n), E=6.7-18.0 MeV; measured production σ. Activation technique, comparison with model predictions.

doi: 10.1080/18811248.2002.9715197
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2172.


2002NA37      J.Nucl.Radiochem.Sci. 3, No 1, 85 (2002)

Y.Nagame, M.Asai, H.Haba, S.Goto, K.Tsukada, I.Nishinaka, K.Nishio, S.Ichikawa, A.Toyoshima, K.Akiyama, H.Nakahara, M.Sakama, M.Schadel, J.V.Kratz, H.W.Gaggeler, A.Turler

Production Cross Sections of 261Rf and 262Db in Bombardments of 248Cm with 18O and 19F Ions

NUCLEAR REACTIONS 248Cm(18O, 5n), E=91, 94, 99 MeV; 248Cm(19F, 5n), E=106 MeV; measured delayed Eα, αα-coin; deduced production σ.


2002ZH55      J.Nucl.Radiochem.Sci. 3, No 1, 103 (2002)

Y.L.Zhao, I.Nishinaka, Y.Nagame, K.Tsukada, K.Sueki, M.Tanikawa, S.Goto, H.Nakahara

Fission Characteristics of Individual Deformation Paths in Heavy Elements

NUCLEAR STRUCTURE 210Po, 227Ac, 233Pa, 249Bk, 259Md; calculated fission fragment mass distributions, total kinetic energies for symmetric and asymmetric fission paths.


2001NA30      Acta Phys.Hung.N.S. 13, 121 (2001)

Y.Nagame, Y.L.Zhao, I.Nishinaka, S.Goto, M.Tanikawa, K.Tsukada, M.Asai, H.Haba, M.Sakama, S.Ichikawa, K.Sueki, H.Nakahara

Symmetric and Asymmetric Scission Properties

doi: 10.1556/APH.13.2001.1-3.13
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2001NA46      Radiochim.Acta 89, 681 (2001)

Y.Nagame, Y.L.Zhao, I.Nishinaka, S.Goto, D.Kaji, M.Tanikawa, K.Tsukada, M.Asai, H.Haba, M.Sakama, S.Ichikawa, K.Sueki, H.Kudo, H.Nakahara

Characteristics of Two Fission Modes

NUCLEAR REACTIONS 232Th, 238U, 244Pu, 248Cm(p, F), E=11-16 MeV; measured fission fragments total kinetic energies, mass yield distributions; deduced two fission modes, deformation effects.


2001TA29      Nucl.Phys. A691, 387c (2001)

T.Takahashi, K.Dobashi, Y.Fujii, O.Hashimoto, H.Kanda, K.Maeda, H.Miyase, Y.Okayasu, H.Tamura, K.Tsukada, T.Watanabe, H.Yamazaki

Photoproduction of Neutral Kaon on 12C in the Threshold Region

NUCLEAR REACTIONS 1H(γ, K+X), E ≈ 1-1.5 GeV; 1n(γ, K0X), E ≈ 1-1.5 GeV; calculated hyperon production associated σ, σ(θ). Implications for planned experiment discussed.

doi: 10.1016/S0375-9474(01)01061-2
Citations: PlumX Metrics


2000SA52      Eur.Phys.J. A 9, 303 (2000)

M.Sakama, K.Tsukada, M.Asai, S.Ichikawa, H.Haba, S.Goto, Y.Oura, I.Nishinaka, Y.Nagame, M.Shibata, Y.Kojima, K.Kawade, M.Ebihara, H.Nakahara

New Isotope 233Am

RADIOACTIVITY 233Am, 229Np(α), (EC) [from 233U(6Li, X), E=63 MeV]; measured Eα, T1/2, α-branching ratio, αα(t), (x-ray)α-coin following mass separation. Comparison with results of nearby isotopes, ISOL technique.

NUCLEAR REACTIONS 233U(6Li, X), E=63 MeV; measured α spectra, αα-coin following compound nucleus decay; deduced evidence for 233Am.

doi: 10.1007/s100500070013
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2000SH40      Radiochim.Acta 88, 1 (2000)

N.Shinohara, K.Tsukada, S.Ichikawa, M.Magara, Y.Hatsukawa

Isomeric Yield Ratios of 134I and 136I in the Proton-, 12C- and 19F-Induced Fission of 235U, 237Np and 238U

NUCLEAR REACTIONS 235,238U, 237Np(p, F)134I/136I, E=14 MeV; 235,238U, 237Np(12C, F)134I/136I, E=86 MeV; 235,238U, 237Np(19F, F)134I/136I, E=109 MeV; measured delayed Eγ, Iγ from chemically separated fission fragments; deduced isomer yield ratios, fission fragments angular momenta.

doi: 10.1524/ract.2000.88.1.001
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1792.


1999AS03      Phys.Rev. C59, 3060 (1999)

M.Asai, S.Ichikawa, K.Tsukada, M.Sakama, M.Shibata, Y.Kojima, A.Osa, I.Nishinaka, Y.Nagame, K.Kawade, T.Tachibana

β-Decay Half-Lives of New Neutron-Rich Isotopes 167, 168Tb and Levels in 167, 168Dy

RADIOACTIVITY 167,168Tb(β-) [from 238U(p, F)]; measured Eγ, Iγ, βγ-coin, T1/2. 167,168Dy deduced levels, J, π, configurations, rotational band features. Comparisons with neighboring nuclides.

doi: 10.1103/PhysRevC.59.3060
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Data from this article have been entered in the XUNDL database. For more information, click here.


1999NA12      J.Radioanal.Nucl.Chem. 239, 97 (1999)

Y.Nagame, I.Nishinaka, Y.L.Zhao, K.Tsukada, S.Ichikawa, Z.Qin, H.Ikezoe, Y.Oura, K.Sueki, H.Nakahara, M.Tanikawa, T.Ohtsuki, S.Goto, H.Kudo, Y.Hamajima, K.Takamiya, K.Nakanishi, H.Baba

Two Deformation Paths in Fission of Light Actinides

NUCLEAR REACTIONS 232Th, 238U(p, F), E=10-20 MeV; measured fission fragments angular, mass distributions; deduced two fission modes.

doi: 10.1007/BF02349537
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1999QI02      Radiochim.Acta 84, 115 (1999)

Z.Qin, K.Tsukada, N.Shinohara, Y.L.Zhao, I.Nishinaka, Y.Hatsukawa, S.Ichikawa, K.Hata, Y.Nagame

Mass Yield Distributions in Proton-Induced Fission of 248Cm

NUCLEAR REACTIONS 248Cm(p, F), E=10.5-20.0 MeV; measured fission fragments mass yield distributions, isotopic production σ. Radiochemical method.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1852.


1999SE04      J.Radioanal.Nucl.Chem. 239, 127 (1999)

T.Sekine, S.Ichikawa, A.Osa, M.Koizumi, H.Iimura, K.Tsukada, I.Nishinaka, Y.Hatsukawa, Y.Nagame, M.Asai, Y.Kojima, T.Hirose, M.Shibata, H.Yamamoto, K.Kawade

Recent Studies of Unstable Nuclei Far from Stability with the On-Line Isotope Separators of JAERI

doi: 10.1007/BF02349543
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1999ZH07      J.Radioanal.Nucl.Chem. 239, 113 (1999)

Y.L.Zhao, T.Ohtsuki, Y.Nagame, I.Nishinaka, K.Tsukada, S.Ichikawa, H.Ikezoe, Y.Hatuskawa, K.Hata, M.Tanikawa, Z.Qin, K.Sueki, Y.Oura, H.Kudo, H.Nakahara

Characteristics of Binary Scission Configurations in Proton-Induced Fission of Actinides

NUCLEAR REACTIONS 232Th, 238U(p, F), E=13 MeV; 244Pu(p, F), E=15 MeV; measured fission fragments velocity, mass distributions; deduced elongation properties of scission configurations.

doi: 10.1007/BF02349540
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1851.


1999ZH10      Phys.Rev.Lett. 82, 3408 (1999)

Y.L.Zhao, I.Nishinaka, Y.Nagame, M.Tanikawa, K.Tsukada, S.Ichikawa, K.Sueki, Y.Oura, H.Ikezoe, S.Mitsuoka, H.Kudo, T.Ohtsuki, H.Nakahara

Symmetric and Asymmetric Scission Properties: Identical shape elongations of fissioning nuclei

NUCLEAR STRUCTURE 227Ac, 233Pa, 239Np, 245Am, 249Bk, 252Cf, 252No, 259Lr, 262Rf; analyzed fission process deformation data; deduced three types of elongation.

doi: 10.1103/PhysRevLett.82.3408
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1999ZH41      Radiochim.Acta 86, 79 (1999)

Y.L.Zhao, M.Tanikawa, K.Sueki, I.Nishinaka, K.Tsukada, Y.Oura, Y.Nagame, H.Nakahara

Angular Momentum Effects on Mass Division in Actinide Fission

NUCLEAR REACTIONS 238U(p, n), (p, 5n), (p, np), (p, 2nα), (p, 3nα), (p, F), E*=28-45 MeV; 232Th(7Li, n), (7Li, 5n), (7Li, np), (7Li, nα), (7Li, 2nα), (7Li, 3nα), (7Li, F), E*=30-46 MeV; measured evaporation residue and fission excitation functions, fission fragment mass yields; deduced angular momentum dependence of fission barrier. Comparison with model predictions.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO0765.


1998IC02      Phys.Rev. C58, 1329 (1998)

S.Ichikawa, K.Tsukada, I.Nishinaka, Y.Hatsukawa, H.Iimura, K.Hata, Y.Nagame, M.Asai, Y.Kojima, T.Hirose, M.Shibata, K.Kawade, Y.Oura

Identification of 161Sm and 165Gd

NUCLEAR REACTIONS 238U(p, F), E=20 MeV; measured βγ-, γγ-coin following fission fragment decay; deduced evidence for 161Sm, 165Gd. Online isotope separator.

RADIOACTIVITY 161Sm, 165Gd(β-); measured T1/2.

doi: 10.1103/PhysRevC.58.1329
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1998IK01      Phys.Rev. C57, R2804 (1998)

T.Ikuta, H.Ikezoe, S.Mitsuoka, I.Nishinaka, K.Tsukada, Y.Nagame, J.Lu, T.Kuzumaki

Observation of a New Isomeric State in 217Pa

RADIOACTIVITY 216,217Pa(α) [from 194Pt(28Si, xnp), E=163 MeV]; measured Eα, T1/2. 217Pa deduced levels, isomeric state.

doi: 10.1103/PhysRevC.57.R2804
Citations: PlumX Metrics


1998IK02      Eur.Phys.J. A 2, 379 (1998)

H.Ikezoe, T.Ikuta, S.Mitsuoka, Y.Nagame, I.Nishinaka, K.Tsukada, T.Ohtsuki, T.Kuzumaki, J.Lu

First Evidence for a New Spontaneous Fission Decay Produced in the Reaction 30Si + 238U

NUCLEAR REACTIONS 238U(30Si, X), E=158 MeV; measured fission fragment spectra following compound nucleus decay, T1/2; deduced evidence for 263,264Sg.

doi: 10.1007/s100500050134
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