NSR Query Results

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NSR database version of April 27, 2024.

Search: Author = M.Takeyama

Found 6 matches.

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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
Citations: PlumX Metrics
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.

2017KA31      J.Phys.Soc.Jpn. 86, 085001 (2017)

D.Kaji, K.Morimoto, H.Haba, Y.Wakabayashi, M.Takeyama, S.Yamaki, Y.Komori, S.Yanou, S.-i.Goto, K.Morita

Decay Measurement of ²⁸³Cn Produced in the ²³⁸U(⁴⁸Ca, 3n) Reaction Using GARIS-II

NUCLEAR REACTIONS ²³⁸U(⁴⁸Ca, 3n), E=251.8 MeV; measured reaction products; deduced σ. Comparison with available data.

RADIOACTIVITY ²⁸³Cn(α), (SF), ²⁷⁹Ds(SF); measured decay products, Eα, Iα; deduced T_1/2. Comparison with available data.

doi: 10.7566/JPSJ.86.085001
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2542.

2017KA66      J.Phys.Soc.Jpn. 86, 034201 (2017)

D.Kaji, K.Morita, K.Morimoto, H.Haba, M.Asai, K.Fujita, Z.Gan, H.Geissel, H.Hasebe, S.Hofmann, M.H.Huang, Y.Komori, L.Ma, J.Maurer, M.Murakami, M.Takeyama, F.Tokanai, T.Tanaka, Y.Wakabayashi, T.Yamaguchi, S.Yamaki, A.Yoshida

Study of the Reaction ⁴⁸Ca + ²⁴⁸Cm → ²⁹⁶Lv^* at RIKEN-GARIS

RADIOACTIVITY ²⁹²Lv, ²⁸⁸Fl, ²⁸⁴Cn, ²⁹³Lv, ²⁸⁹Fl, ²⁸⁵Cn, ²⁹⁴Lv, ²⁹⁰Fl(α) [from ²⁴⁸Cm(⁴⁸Ca, X)²⁹⁶Lv, E=261.6, 258.0 MeV]; measured decay products, Eα, Iα; deduced decay branches and ratios.

NUCLEAR REACTIONS ²⁴⁸Cm(⁴⁸Ca, X)²⁹⁶Lv, E=261.6, 258.0 MeV; measured reaction products; deduced σ. Comparison with available data.

doi: 10.7566/jpsj.86.034201
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2538.

2017WI13      Phys.Rev. C 96, 044315 (2017)

G.L.Wilson, M.Takeyama, A.N.Andreyev, B.Andel, S.Antalic, W.N.Catford, L.Ghys, H.Haba, F.P.Hessberger, M.Huang, D.Kaji, Z.Kalaninova, K.Morimoto, K.Morita, M.Murakami, K.Nishio, R.Orlandi, A.G.Smith, K.Tanaka, Y.Wakabayashi, S.Yamaki

β-delayed fission of ²³⁰Am

RADIOACTIVITY ²³⁰Am(β⁺F)[from ²⁰⁷Pb(²⁷Al, 4n), E=145 MeV]; measured fission fragments, double-fold fission fragment coincidences, total energy spectrum, α-α correlations using the GARIS recoil-ion separator at RIKEN. Analyzed TKE(²³⁰Pu); deduced T_1/2 for ²³⁰Am, lower limit of β-delayed fission probability of ²³⁰Am. Systematics of β⁺-delayed fission probabilities for ^230,232,234Am, ^{240,242,244,246,248}Es, ^236,238,240Bk nuclei. ²³⁰Am found to have the highest lower limit for β⁺-delayed fission probability so far among all the known nuclei decaying by this mode.

doi: 10.1103/PhysRevC.96.044315
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2013SU04      J.Phys.Soc.Jpn. 82, 024202 (2013)

T.Sumita, K.Morimoto, D.Kaji, H.Haba, K.Ozeki, R.Sakai, A.Yoneda, A.Yoshida, H.Hasebe, K.Katori, N.Sato, Y.Wakabayashi, S.-i.Mitsuoka, S.-i.Goto, M.Murakami, Y.Kariya, F.Tokanai, K.Mayama, M.Takeyama, T.Moriya, E.Ideguchi, T.Yamaguchi, H.Kikunaga, J.Chiba, K.Morita

New Result on the Production of ²⁷⁷Cn by the ²⁰⁸Pb + ⁷⁰Zn Reaction

NUCLEAR REACTIONS ²⁰⁸Pb(⁷⁰Zn, n)²⁷⁷Cn, E=347.5, 351.5, 355.5 MeV; ²⁰⁹Bi(⁷⁰Zn, n)²⁷⁸Nh, E=347.5, 351.5, 355.5 MeV; measured reaction products, Eα, Iα; deduced σ. Comparison with similar nuclei.

RADIOACTIVITY ²⁷⁷Cn, ²⁷³Ds, ²⁶⁹Hs, ²⁶⁵Sg, ²⁶¹Rf, ²⁵⁷No(α); measured decay products, Eα, Iα; deduced T_1/2. Comparison with available data.

doi: 10.7566/JPSJ.82.024202
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2406.

2012MO25      J.Phys.Soc.Jpn. 81, 103201 (2012)

K.Morita, K.Morimoto, D.Kaji, H.Haba, K.Ozeki, Y.Kudou, T.Sumita, Y.Wakabayashi, A.Yoneda, K.Tanaka, S.Yamaki, R.Sakai, T.Akiyama, S.-i.Goto, H.Hasebe, M.Huang, T.Huang, E.Ideguchi, Y.Kasamatsu, K.Katori, Y.Kariya, H.Kikunaga, H.Koura, H.Kudo, A.Mashiko, K.Mayama, S.-ic.Mitsuoka, T.Moriya, M.Murakami, H.Murayama, S.Namai, A.Ozawa, N.Sato, K.Sueki, M.Takeyama, F.Tokanai, T.Yamaguchi, A.Yoshida

New Result in the Production and Decay of an Isotope, ²⁷⁸113, of the 113th Element

NUCLEAR REACTIONS ²⁰⁹Bi(⁷⁰Zn, X)²⁷⁸Nh, E=349 MeV; measured reaction products, Eα, Iα. ²⁷⁴Rg, ²⁷⁰Mt, ²⁶⁶Bh, ²⁶²Db, ²⁵⁸Lr; deduced T_1/2. Comparison with available data.

doi: 10.1143/JPSJ.81.103201
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2388.