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NSR database version of April 11, 2024.

Search: Author = H.Koura

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2023II01      Phys.Rev.Lett. 130, 012501 (2023)

S.Iimura, M.Rosenbusch, A.Takamine, Y.Tsunoda, M.Wada, S.Chen, D.S.Hou, W.Xian, H.Ishiyama, S.Yan, P.Schury, H.Crawford, P.Doornenbal, Y.Hirayama, Y.Ito, S.Kimura, T.Koiwai, T.M.Kojima, H.Koura, J.Lee, J.Liu, S.Michimasa, H.Miyatake, J.Y.Moon, S.Naimi, S.Nishimura, T.Niwase, A.Odahara, T.Otsuka, S.Paschalis, M.Petri, N.Shimizu, T.Sonoda, D.Suzuki, Y.X.Watanabe, K.Wimmer, H.Wollnik

Study of the N=32 and N=34 Shell Gap for Ti and V by the First High-Precision Multireflection Time-of-Flight Mass Measurements at BigRIPS-SLOWRI

ATOMIC MASSES 55Sc, 56,58Ti, 56,57,58,59V; measured TOF; deduced masses, nonexistence of the N=34 empirical two-neutron shell gaps for Ti and V, and the enhanced energy gap in Ca. Comparison with new Monte Carlo shell model calculations. RIKEN's Radioactive Isotope Beam Factory (RIBF).

doi: 10.1103/PhysRevLett.130.012501
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2022MU10      Phys.Rev. C 105, 034331 (2022)

M.Mukai, Y.Hirayama, Y.X.Watanabe, H.Watanabe, H.Koura, S.C.Jeong, H.Miyatake, M.Brunet, S.Ishizawa, F.G.Kondev, G.J.Lane, Yu.A.Litvinov, T.Niwase, M.Oyaizu, Zs.Podolyak, M.Rosenbusch, P.Schury, M.Wada, P.M.Walker

Ground-state β-decay spectroscopy of 187Ta

RADIOACTIVITY 187Ta(β-)[from W(136Xe, X), E=7.2 MeV/nucleon]; measured Eγ, Iγ, βγ-coin; deduced Iβ feedings, T1/2, logft, Iγ/β-decay. 187W; deduced Eγ, multipolarities, total conversion coefficients (BrIcc calculations). Comparison to KTUY+gross theory, FRDM+QRPA and RHB+pn-RQRPAKEK calculations. Isotope Separation System (KISS) at RIKEN, an argon-gas-cell-based laser ion source combined with an on-line isotope separator.

doi: 10.1103/PhysRevC.105.034331
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2021SC14      Phys.Rev. C 104, L021304 (2021)

P.Schury, T.Niwase, M.Wada, P.Brionnet, S.Chen, T.Hashimoto, H.Haba, Y.Hirayama, D.S.Hou, S.Iimura, H.Ishiyama, S.Ishizawa, Y.Ito, D.Kaji, S.Kimura, H.Koura, J.J.Liu, H.Miyatake, J.-Y.Moon, K.Morimoto, K.Morita, D.Nagae, M.Rosenbusch, A.Takamine, Y.X.Watanabe, H.Wollnik, W.Xian, S.X.Yan

First high-precision direct determination of the atomic mass of a superheavy nuclide

ATOMIC MASSES 257Db; measured Eα, time-of flight, distribution of time-of-flight (ToF)-correlated α-decay events using multireflection time-of-flight mass spectrograph (MRTOF-MS) at RIKEN Ring Cyclotron facility; deduced A/q and mass excess for each of the 11 observed correlated events assigned to 257Db. Comparison with AME2016 evaluated data. 257Db isotope produced in 208Pb(51V, 2n), E=306 MeV reaction, followed by separation of fragments using GARIS-II separator.

doi: 10.1103/PhysRevC.104.L021304
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2021YA25      Prog.Part.Nucl.Phys. 120, 103882 (2021)

T.Yamaguchi, H.Koura, Yu.A.Litvinov, M.Wang

Masses of exotic nuclei

ATOMIC MASSES N<180; analyzed available data; deduced masses.

doi: 10.1016/j.ppnp.2021.103882
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2019EN02      Phys.Rev. C 99, 034303 (2019)

F.Endo, H.Koura

Analysis of nuclear structure in the nuclear chart and improvement to the gross theory of β decay

RADIOACTIVITY 127,128,129,130,131,132,133,134,135,136,137,138Sb, 133,134,135,136,137,138,139,140,141,142,143,144Te, 208,209,210,211,212,213,214,215,216,217,218,219,220Tl, 280,281,282,283,284,285,286,287,288,289,290,291,292Db, 285,286,287,288,289,290,291,292,293,294,295,296Sg, 202Re, 196Tm(β-); calculated β-decay half-lives using gross theory of β decay with improved spin-parity condition. 196Tm, 202Re, 208Tl, 289Db, 290,291Sg(β-); calculated decay schemes in single-particle levels. 132Sn, 208Pb, 298Fl; calculated single-particle levels. Z=8-150, N=8-350; surveyed change of spin and parity between neutron and proton single-particle levels for β-decay channel in the entire nuclear chart using the gross theory of β decay; deduced that regions of dominant forbidden transition distributed periodically in the nuclear chart, and that matrix elements for allowed g.s. to g.s. transitions get suppressed systematically in the neighborhood of heavier doubly magic nuclei. Comparison with experimental values, and with other theoretical predictions.

doi: 10.1103/PhysRevC.99.034303
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2019SI39      Nucl.Data Sheets 160, 405 (2019)

B.Singh, M.S.Basunia, M.Martin, E.A.McCutchan, I.Bala, R.Caballero-Folch, R.Canavan, R.Chakrabarti, A.Chekhovska, M.M.Grinder, S.Kaim, D.Kanjilal, D.Kasperovych, M.J.Kobra, H.Koura, S.Nandi, A.Olacel, A.Singh, B.P.E.Tee

Nuclear Data Sheets for A=218

COMPILATION 218Pb, 218Bi, 218Po, 218At, 218Rn, 218Fr, 218Ra, 218Ac, 218Th, 218Pa, 218U; compiled, evaluated nuclear structure data.

doi: 10.1016/j.nds.2019.100524
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This article is in the ENSDF database. For more information, click here.


2018IT04      Phys.Rev.Lett. 120, 152501 (2018)

Y.Ito, P.Schury, M.Wada, F.Arai, H.Haba, Y.Hirayama, S.Ishizawa, D.Kaji, S.Kimura, H.Koura, M.MacCormick, H.Miyatake, J.Y.Moon, K.Morimoto, K.Morita, M.Mukai, I.Murray, T.Niwase, K.Okada, A.Ozawa, M.Rosenbusch, A.Takamine, T.Tanaka, Y.X.Watanabe, H.Wollnik, S.Yamaki

First Direct Mass Measurements of Nuclides around Z=100 with a Multireflection Time-of-Flight Mass Spectrograph

NUCLEAR REACTIONS 232Th(19F, 5n)246Es, E=99.6, 103 MeV;238U(18O, 5n)251Fm, E=93.9 MeV; 203Tl(48Ca, 2n)249Md, E=215 MeV; 205Tl(48Ca, 3n)250Md, E=223 MeV; 205Tl(48Ca, 2n)251Md, E=215 MeV; 238U(19F, 5n)252md, E=98.6 MeV; 208Pb(48Ca, 2n)254No, E=219 MeV; measured reaction products, TOF; deduced mass excesses. Comparison with available data.

ATOMIC MASSES 253,254Lr, 257,258Db, 261,262Bh, 266Mt; analyzed available data; deduced mass excesses.

doi: 10.1103/PhysRevLett.120.152501
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2018RO14      Phys.Rev. C 97, 064306 (2018)

M.Rosenbusch, Y.Ito, P.Schury, M.Wada, D.Kaji, K.Morimoto, H.Haba, S.Kimura, H.Koura, M.MacCormick, H.Miyatake, J.Y.Moon, K.Morita, I.Murray, T.Niwase, A.Ozawa, M.Reponen, A.Takamine, T.Tanaka, H.Wollnik

New mass anchor points for neutron-deficient heavy nuclei from direct mass measurements of radium and actinium isotopes

ATOMIC MASSES 210,211,212,214Ra, 210,211,212,213,214Ac; measured time of flight, and mass excess using multireflection time-of-flight mass spectrograph (MRTOF-MS) at superheavy element (SHE) mass facility of RIKEN-KEK, and using gas-filled recoil ion separator GARIS-II at RIKEN. Comparison with values from AME-2016. Ra and Ac isotopes produced in 169Tm(48Ca, X), E=5, 6 MeV/nucleon reaction at RIKEN. Z=82-92, N=121-129; systematics of S(2n) values.

doi: 10.1103/PhysRevC.97.064306
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2017KO24      Phys.Rev. C 95, 064304 (2017)

H.Koura, S.Chiba

Improvement to the gross theory of β decay by inclusion of change in parity

RADIOACTIVITY 103,104,105,106Rb, 103,104,105,106Sr, 105,106,107,108,109Y, 106,107,108,109,110,111,112Zr, 107,108,109,110,111,112,113,114,115Nb, 109,110,111,112,113,114,115,116,117,118Mo, 112,113,114,115,116,117,118,119,120,121Tc, 116,117,118,119,120,121,122,123,124Ru, 117,118,119,120,121,122,123,124,125,126,127Rh, 120,121,122,123,124,125,126,127,128,129Pd, 124,125,126,127,128,129,130,131,132Ag, 126,127,128,129,130,131,132,133,134Cd, 128,129,130,131,132,133,134,135,136,137In, 134,135,136,137,138,139Sn, 46,47,48,49Ar, 65,66,67,68Ni, 90,91,92Kr(β-); Z=8-90, N=8-140(β-); calculated β-decay half-lives using improvement to the single-particle structure in the gross theory of β decay with the assignment of parity from Woods-Saxon¬Ětype single-particle potential. Comparison with previous gross theory of β decay, and with experimental values.

doi: 10.1103/PhysRevC.95.064304
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2017SC02      Phys.Rev. C 95, 011305 (2017)

P.Schury, M.Wada, Y.Ito, D.Kaji, F.Arai, M.MacCormick, I.Murray, H.Haba, S.Jeong, S.Kimura, H.Koura, H.Miyatake, K.Morimoto, K.Morita, A.Ozawa, M.Rosenbusch, M.Reponen, P.-A.Soderstrom, A.Takamine, T.Tanaka, H.Wollnik

First online multireflection time-of-flight mass measurements of isobar chains produced by fusion-evaporation reactions: Toward identification of superheavy elements via mass spectroscopy

ATOMIC MASSES 204,205,206Fr, 204,205,206Rn, 204,205,206At, 204,205Po, 205Bi; measured time-of-flight spectra, precise atomic masses with reference to that of 205Fr using GARIS-II recoil ion separator GARIS-II and multireflection time-of-flight mass spectrographs (MRTOF-MS) at RILAC-RIKEN facility. Isotopes produced in 165Ho, 169Tm(40Ar, X), E=4.825, 5.16 MeV/nucleon. Comparison with AME-2012 values, and previous experimental values.

doi: 10.1103/PhysRevC.95.011305
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2016KA13      J.Phys.Soc.Jpn. 85, 015002 (2016)

D.Kaji, K.Morimoto, H.Haba, E.Ideguchi, H.Koura, K.Morita

Decay Properties of New Isotopes 234Bk and 230Am, and Even-Even Nuclides 234Cm and 230Pu

RADIOACTIVITY 234Bk(α), (EC) [from 197Au(40Ar, 3n)234Bk, E=89.5 MeV]; measured decay products, Eα, Iα; deduced T1/2. Comparison with available data.

doi: 10.7566/JPSJ.85.015002
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Data from this article have been entered in the XUNDL database. For more information, click here.


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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2014KO44      Prog.Theor.Exp.Phys. 2014, 113D02 (2014)

H.Koura

Estimating fission-barrier height by the spherical-basis method

NUCLEAR STRUCTURE N>120, Z>80; calculated fission barrier height, potential energy surfaces. Comparison with available data.

doi: 10.1093/ptep/ptu148
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2013KO01      J.Phys.Soc.Jpn. 82, 014201 (2013)

H.Koura, S.Chiba

Single-Particle Levels of Spherical Nuclei in the Superheavy and Extremely Superheavy Mass Region

NUCLEAR STRUCTURE 256U, 298Fl, 310126, 342Fl, 366138, 462154, 472164; calculated single-particle level energies, J, π, single particle potentials. deduced beta stable nuclei 298Fl, 310164. Modified Woods-Saxon potential calculations.

doi: 10.7566/JPSJ.82.014201
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2388.


2011BE21      Bull.Rus.Acad.Sci.Phys. 75, 585 (2011); Izv.Akad.Nauk RAS, Ser.Fiz 75, 621 (2011)

O.V.Bespalova, T.A.Ermakova, A.A.Klimochkina, H.Koura, E.A.Romanovskii, T.I.Spasskaya

Evaluation and analysis of neutron single-particle energies in 78Ni nucleus

NUCLEAR STRUCTURE 78Ni, 90Zr, 100Sn; analyzed experimental data; calculated single-particle energies. Koura-Yamada potential.

doi: 10.3103/S1062873811040071
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2011BE41      Phys.Atomic Nuclei 74, 1521 (2011); Yad.Fiz. 74, 1555 (2011)

O.V.Bespalova, I.N.Boboshin, V.V.Varlamov, T.A.Ermakova, B.S.Ishkhanov, A.A.Klimochkina, S.Yu.Komarov, H.Koura, E.A.Romanovsky, T.I.Spasskaya

Shell structure of even-even nickel isotopes containing twenty to forty neutrons

NUCLEAR STRUCTURE 48,50,52,54,56,58,60,62,64,68Ni; calculated single-particle and Coulomb shift energies; deduced parameters of the neutron dispersive optical potential. Comparison with experimental and evaluated data.

doi: 10.1134/S1063778811110056
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2011SA41      J.Phys.Soc.Jpn. 80, 094201 (2011)

N.Sato, H.Haba, T.Ichikawa, D.Kaji, Y.Kudou, K.Morimoto, K.Morita, K.Ozeki, T.Sumita, A.Yoneda, E.Ideguchi, H.Koura, A.Ozawa, T.Shinozuka, T.Yamaguchi, A.Yoshida

Production and Decay Properties of 264Hs and 265Hs

NUCLEAR REACTIONS 208Pb(58Fe, 2n), 207,208Pb(58Fe, n), E(cm)=200-227 MeV; measured reaction products; deduced σ.

RADIOACTIVITY 264,265Hs(α), (SF) [from 208Pb(58Fe, 2n), 207,208Pb(58Fe, n), E(cm)=200-227 MeV]; measured Eα, Iα; deduced α-particle energies, α and spontaneous fission branches, Q-values, T1/2.

doi: 10.1143/JPSJ.80.094201
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2360.


2010BE11      Bull.Rus.Acad.Sci.Phys. 74, 542 (2010); Izv.Akad.Nauk RAS, Ser.Fiz 74, 575 (2010)

O.V.Bespalova, I.N.Boboshin, V.V.Varlamov, T.A.Ermakova, B.S.Ishkhanov, A.A.Klimochkina, S.Yu.Komarov, H.Koura, E.A.Romanovsky, T.I.Spasskaya

Neutron shell structure of 58, 60, 62, 64Ni nuclei and its study within a mean-field model with dispersive optical-model potential

NUCLEAR STRUCTURE 58,60,62,64Ni; calculated single-particle energies with dispersive optical potential; deduced subshell degeneracy.

doi: 10.3103/S106287381004026X
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2010OY02      Phys.Rev. C 82, 027301 (2010)

K.Oyamatsu, K.Iida, H.Koura

Neutron drip line and the equation of state of nuclear matter

doi: 10.1103/PhysRevC.82.027301
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2009BE24      Bull.Rus.Acad.Sci.Phys. 73, 820 (2009); Izv.Akad.Nauk RAS, Ser.Fiz 73, 867 (2009)

O.V.Bespalova, I.N.Boboshin, V.V.Varlamov, T.A.Ermakova, B.S.Ishkhanov, S.Yu.Komarov, H.Koura, E.A.Romanovskii, T.I.Spasskaya

Energies of the single-particle proton 1f and 2p states in the 58, 60, 62, 64Ni isotopes

NUCLEAR STRUCTURE 58,60,62,64Ni; calculated energies of single-particle states; deduced importance of proton dispersive optical potential (dop). Comparison with experiment.

doi: 10.3103/S1062873809060264
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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.


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


2007MO09      J.Phys.Soc.Jpn. 76, 043201 (2007)

K.Morita, K.Morimoto, D.Kaji, T.Akiyama, S.Goto, H.Haba, E.Ideguchi, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, T.Suda, K.Sueki, F.Tokanai, T.Yamaguchi, A.Yoneda, A.Yoshida

Experiment on Synthesis of an Isotope 277112 by 208Pb + 70Zn Reaction

NUCLEAR REACTIONS 208Pb(70Zn, n), E=349.5 MeV; measured delayed Eα, αα-, (recoil)α-coin; deduced production σ. Gas-filled separator.

RADIOACTIVITY 277Cn, 273Ds, 269Hs, 265Sg(α) [from 208Pb(70Zn, n) and subsequent decay]; measured Eα, T1/2. Gas-filled separator.

doi: 10.1143/JPSJ.76.043201
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2054.


2007MO43      J.Phys.Soc.Jpn. 76, 045001 (2007)

K.Morita, K.Morimoto, D.Kaji, T.Akiyama, S.-i.Goto, H.Haba, E.Ideguchi, K.Katori, H.Koura, H.Kikunaga, H.Kudo, T.Ohnishi, A.Ozawa, N.Sato, T.Suda, K.Sueki, F.Tokanai, T.Yamaguchi, A.Yoneda, A.Yoshida

Observation of Second Decay Chain from 278113

RADIOACTIVITY 278Nh, 274Rg, 270Mt, 266Bh, 262Db(α) [from 209Bi(70Zn, n)278Nh, E=353 MeV]; measured decay products, Eα, Iα; deduced T1/2, σ.

doi: 10.1143/JPSJ.76.045001
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2055.


2006KA15      J.Nucl.Sci.Technol.(Tokyo) 43, 1 (2006)

T.Kawano, S.Chiba, H.Koura

Phenomenological Nuclear Level Densities using the KTUY05 Nuclear Mass Formula for Applications Off-Stability

NUCLEAR STRUCTURE 28Si, 56Fe, 93Nb, 132Sn, 139La, 158Gd, 204Os, 209Bi; calculated level densities. Phenomenological model.

doi: 10.1080/18811248.2006.9711062
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2005KO07      Prog.Theor.Phys.(Kyoto) 113, 305 (2005)

H.Koura, T.Tachibana, M.Uno, M.Yamada

Nuclidic Mass Formula on a Spherical Basis with an Improved Even-Odd Term

ATOMIC MASSES Z=2-130; A=4-330; calculated masses, neutron and proton separation energies, deformation parameters.

NUCLEAR STRUCTURE Z=2-130; A=4-330; calculated masses, neutron and proton separation energies, deformation parameters.

doi: 10.1143/PTP.113.305
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2004MO14      Nucl.Phys. A734, 101 (2004)

K.Morita, K.Morimoto, D.Kaji, S.Goto, H.Haba, E.Ideguchi, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, J.C.Peter, T.Suda, K.Sueki, I.Tanihata, F.Tokanai, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, Y.-L.Zhao, T.Zheng

Status of heavy element research using GARIS at RIKEN

NUCLEAR REACTIONS 208Pb(64Ni, n), E=310, 313, 316, 320 MeV; 209Bi(64Ni, n), E=320, 323, 326 MeV; measured σ.

RADIOACTIVITY 272Rg, 271Ds, 268Mt, 267Hs, 264Bh, 263Sg, 260Db, 259Rf, 256Lr, 255No, 252Md(α) [from 208Pb, 209Bi(64Ni, n) and subsequent decay]; measured Eα, T1/2.

doi: 10.1016/j.nuclphysa.2004.01.019
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1918.


2004MO26      J.Phys.Soc.Jpn. 73, 1738 (2004)

K.Morita, K.Morimoto, D.Kaji, H.Haba, E.Ideguchi, J.C.Peter, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, T.Suda, K.Sueki, I.Tanihata, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, Y.-L.Zhao, T.Zheng, S.Goto, F.Tokanai

Production and Decay Properties of 272Rg and its Daughter Nuclei

NUCLEAR REACTIONS 209Bi(64Ni, n), E=320, 323, 326 MeV; measured σ.

RADIOACTIVITY 272Rg, 268Mt, 264Bh, 260Db, 256Lr(α) [from 209Bi(64Ni, n) and subsequent decay]; measured Eα, T1/2.

doi: 10.1143/JPSJ.73.1738
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1919.


2004MO27      Nucl.Phys. A738, 129 (2004)

K.Morimoto, K.Morita, D.Kaji, S.Goto, H.Haba, E.Ideguchi, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, J.C.Peter, T.Suda, K.Sueki, I.Tanihata, F.Tokanai, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, T.-L.Zhao, T.Zheng

Status of super heavy element research using GARIS at RIKEN

NUCLEAR REACTIONS 208Pb, 209Bi(64Ni, n), E=310-326 MeV; measured excitation functions.

RADIOACTIVITY 271Ds, 267Hs, 263Sg, 259Rf, 255No(α) [from 208Pb(64Ni, n) and subsequent decay]; 272Rg, 268Mt, 264Bh, 260Db, 256Lr(α) [from 209Bi(64Ni, n) and subsequent decay]; measured Eα, T1/2.

doi: 10.1016/j.nuclphysa.2004.04.021
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Data from this article have been entered in the XUNDL database. For more information, click here.


2004MO40      Eur.Phys.J. A 21, 257 (2004)

K.Morita, K.Morimoto, D.Kaji, H.Haba, E.Ideguchi, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, T.Suda, K.Sueki, I.Tanihata, H.Xu, A.V.Yeremin, A.Yoneda, A.Yoshida, Y.-L.Zhao, T.Zheng

Production and decay of the isotope 271Ds (Z = 110)

NUCLEAR REACTIONS 208Pb(64Ni, n), E=308, 311, 314, 318 MeV; measured excitation function.

RADIOACTIVITY 271Ds, 267Hs, 263Sg, 259Rf, 255No(α) [from 208Pb(64Ni, n) and subsequent decay]; measured Eα, T1/2. 271Ds, 267Hs deduced isomeric states.

doi: 10.1140/epja/i2003-10205-1
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1918. Data from this article have been entered in the XUNDL database. For more information, click here.


2004MO42      J.Phys.Soc.Jpn. 73, 2593 (2004)

K.Morita, K.Morimoto, D.Kaji, T.Akiyama, S.Goto, H.Haba, E.Ideguchi, R.Kanungo, K.Katori, H.Koura, H.Kudo, T.Ohnishi, A.Ozawa, T.Suda, K.Sueki, H.Xu, T.Yamaguchi, A.Yoneda, A.Yoshida, Y.Zhao

Experiment on the Synthesis of Element 113 in the Reaction 209Bi(70Zn, n)278113

NUCLEAR REACTIONS 209Bi(70Zn, n), E=349 MeV; measured delayed (recoil)α-, αα-coin; deduced production σ. Gas-filled recoil separator.

RADIOACTIVITY 278Nh, 274Rg, 270Mt, 266Bh(α) [from 209Bi(70Zn, n) and subsequent decay]; measured Eα, T1/2. Gas-filled recoil separator.

doi: 10.1143/JPSJ.73.2593
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1920.


2002KO73      J.Nucl.Radiochem.Sci. 3, No 1, 201 (2002)

H.Koura

Alpha-decay Half-lives and Fission Barriers for Superheavy Nuclei Predicted by a Nuclear Mass Formula

NUCLEAR STRUCTURE Z=102-118; 284,285Cn, 287,288Fl, 292Lv;calculated α-decay T1/2, fission barrier heights. 280Cn, 300120; calculated potential energy surfaces. Phenomenological formulas.


2000KO23      Nucl.Phys. A671, 96 (2000)

H.Koura, M.Yamada

Single-Particle Potentials for Spherical Nuclei

NUCLEAR STRUCTURE 4,5,8,9He, 5,9Li, 12,13,14,15C, 13,15N, 16,17O, 17F, 36,37S, 37Cl, 40,41,48,49Ca, 41,49Sc, 56,57,66,67,68,69Ni, 67,69Cu, 88,89Sr, 89Y, 90,91Zr, 91Nb, 132,133Sn, 133Sb, 208,209Pb, 209Bi; calculated single-particle neutron, proton levels, J, π. Five-parameter refinement to Woods-Saxon potential. Comparisons with data.

doi: 10.1016/S0375-9474(99)00428-5
Citations: PlumX Metrics


2000KO27      Nucl.Phys. A674, 47 (2000)

H.Koura, M.Uno, T.Tachibana, M.Yamada

Nuclear Mass Formula with Shell Energies Calculated by a New Method

NUCLEAR STRUCTURE Z=2-120; calculated shell energies, masses, deformation effects.

ATOMIC MASSES Z=2-120; calculated shell energies, masses, deformation effects.

doi: 10.1016/S0375-9474(00)00155-X
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