NSR Query Results


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NSR database version of May 19, 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 T1/2. 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 T1/2 for 230Am, lower limit of β-delayed fission probability of 230Am. Systematics of β+-delayed fission probabilities for 230,232,234Am, 240,242,244,246,248Es, 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 T1/2. 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 T1/2. 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.


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