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NSR database version of April 25, 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, T_1/2, 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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Data from this article have been entered in the XUNDL database. For more information, click here.

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 ^{127,128,129,130,131,132,133,134,135,136,137,138}Sb, ^{133,134,135,136,137,138,139,140,141,142,143,144}Te, ^{208,209,210,211,212,213,214,215,216,217,218,219,220}Tl, ^{280,281,282,283,284,285,286,287,288,289,290,291,292}Db, ^{285,286,287,288,289,290,291,292,293,294,295,296}Sg, 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 ^{210,211,212,214}Ra, ^{210,211,212,213,214}Ac; 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 ^{103,104,105,106}Rb, ^{103,104,105,106}Sr, ^{105,106,107,108,109}Y, ^{106,107,108,109,110,111,112}Zr, ^{107,108,109,110,111,112,113,114,115}Nb, ^{109,110,111,112,113,114,115,116,117,118}Mo, ^{112,113,114,115,116,117,118,119,120,121}Tc, ^{116,117,118,119,120,121,122,123,124}Ru, ^{117,118,119,120,121,122,123,124,125,126,127}Rh, ^{120,121,122,123,124,125,126,127,128,129}Pd, ^{124,125,126,127,128,129,130,131,132}Ag, ^{126,127,128,129,130,131,132,133,134}Cd, ^{128,129,130,131,132,133,134,135,136,137}In, ^{134,135,136,137,138,139}Sn, ^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type 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 T_1/2. 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 T_1/2. 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 ^{48,50,52,54,56,58,60,62,64,68}Ni; 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, T_1/2.

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, 64}Ni 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, 64}Ni 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; ^{124,126,128,130,134,136,138}Sn(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, T_1/2. 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 T_1/2, 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, T_1/2.

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, T_1/2.

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, T_1/2.

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, T_1/2. 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, T_1/2. 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 T_1/2, 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, ^{56,57,66,67,68,69}Ni, ^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
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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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