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Journal Articles

Search for neutron excitations across the $$N=20$$ shell gap in $$^{25-29}$$Ne

Belleguic, M.*; Azaiez, F.*; Dombr$'a$di, Zs.*; Sohler, D.*; Lopez-Jimenez, M. J.*; Otsuka, Takaharu*; Saint-Laurent, M. G.*; Sorlin, O.*; Stanoiu, C.*; Utsuno, Yutaka; et al.

Physical Review C, 72(5), p.054316_1 - 054316_7, 2005/11

https://doi.org/10.1103/PhysRevC.72.054316
 Times Cited Count：41 Percentile：89.52(Physics, Nuclear)

no abstracts in English

Journal Articles

A New isomer in $$^{136}$$Ba populated by deep inelastic collisions

Shizuma, Toshiyuki; Gan, Z. G.*; Ogawa, Kengo*; Nakada, Hitoshi*; Oshima, Masumi; Toh, Yosuke; Hayakawa, Takehito; Hatsukawa, Yuichi; Sugawara, Masahiko*; Utsuno, Yutaka; et al.

European Physical Journal A, 20(2), p.207 - 210, 2004/04

https://doi.org/10.1140/epja/i2003-10163-6
 Times Cited Count：13 Percentile：71.74(Physics, Nuclear)

Excited states in $$^{136}$$Ba, populated in deep-inelastic collisions by the interaction of 450-MeV $$^{82}$$Se ions with a $$^{139}$$La target, have been studied by means of in-beam $$gamma$$-ray spectroscopy. A new isomer with $$I^pi=(10^+)$$ has been identified at an excitation energy of $$E_x=3.357$$ MeV. The half-life was determined as $$T_{1/2}=94pm10$$ ns. The extracted $$B(E2)$$ value is much smaller than those in $$^{132}$$Te and $$^{134}$$Xe. This hindrance is investigated by a shell model calculation.

Journal Articles

High-spin structure in $$^{185}$$Os

Shizuma, Toshiyuki; Mitarai, Shiro*; Sletten, G.*; Bark, R. A.*; Gjorup, N. L.*; Jensen, H. J.*; Piiparinen, M.*; Wrzesinski, J.*; Shimizu, Yoshifumi*

Physical Review C, 69(2), p.024305_1 - 024305_18, 2004/02

https://doi.org/10.1103/PhysRevC.69.024305
 Times Cited Count：15 Percentile：65.29(Physics, Nuclear)

High-spin states in $$^{185}$$Os have been studied using the $$^{176}$$Yb($$^{13}$$C,4n) reaction at a beam energy of 65MeV. Previously known 1-quasiparticle bands have been extended to higher spins. New high-$$K$$ bands based on 3- and 5-quasiparticle excitation have been identified. Nilsson configurations are assigned based on the g-factors deduced from M1/E2 branching ratios within the bands. In addition, a new isomer at 5008keV has been found with a half-life of 18(2) ns. The hindrance in decays of the high-$$K$$ intrinsic states are discussed in terms of the $$gamma$$ tunneling model where the low-$$K$$ and high-$$K$$ states interact through the triaxial shape fluctuation.

Journal Articles

Inelastic excitation of $$^{187}$$Re

Shizuma, Toshiyuki; Toh, Yosuke; Oshima, Masumi; Sugawara, Masahiko*; Matsuda, Makoto; Hayakawa, Takehito; Koizumi, Mitsuo; Osa, Akihiko; Zhang, Y. H.*; Liu, Z.*

European Physical Journal A, 17(2), p.159 - 165, 2003/06

https://doi.org/10.1140/epja/i2002-10156-y
 Times Cited Count：10 Percentile：55.54(Physics, Nuclear)

High-spin states in $$^{187}$$Re populated by inelastic scattering of a 500-MeV $$^{82}$$Se beam have been studied by means of in-beam $$gamma$$-ray spectroscopy. Levels built on the $$5/2^+$$[402] and $$9/2^-$$[514] one-quasiparticle states were measured up to $$I^pi=(21/2^+)$$ and $$(21/2^-)$$, respectively. In additions, several new levels including an isomer at 1682 keV with a half-life of 114(23) ns have been found. Quasiparticle configurations of the levels and the transition rates are discussed.

Journal Articles

Yrast bands in N=91 isotones

Hayakawa, Takehito; Oshima, Masumi; Hatsukawa, Yuichi; Katakura, Junichi; Iimura, Hideki; Matsuda, Makoto; Shinohara, Nobuo; Toh, Yosuke; Mitarai, Shiro*; Shizuma, Toshiyuki; et al.

European Physical Journal A, 9(2), p.153 - 156, 2000/10

https://doi.org/10.1007/s100500070030
 Times Cited Count：17 Percentile：66.11(Physics, Nuclear)

no abstracts in English

Journal Articles

Rotational bands of $$^{155}$$Gd

Hayakawa, Takehito; Oshima, Masumi; Hatsukawa, Yuichi; Katakura, Junichi; Iimura, Hideki; Matsuda, Makoto; Mitarashi, Shiro*; Shimizu, Y.*; Otsubo, Shinichi*; Shizuma, Toshiyuki; et al.

AIP Conference Proceedings 495, p.235 - 236, 1999/12

https://doi.org/10.1063/1.1301782

no abstracts in English

Journal Articles

Rotational bands of $$^{155}$$Gd

Hayakawa, Takehito; Oshima, Masumi; Hatsukawa, Yuichi; Katakura, Junichi; Iimura, Hideki; Matsuda, Makoto; Mitarashi, Shiro*; Shimizu, Y.*; Otsubo, Shinichi*; Shizuma, Toshiyuki; et al.

Nuclear Physics A, 657(1), p.3 - 18, 1999/00

https://doi.org/10.1016/S0375-9474(99)00322-X
 Times Cited Count：19 Percentile：70.5(Physics, Nuclear)

no abstracts in English

Journal Articles

High spin states of $$^{132}$$Cs

Hayakawa, Takehito*; J.Lu*; Furuno, Kohei*; *; *; *; Komatsubara, Tetsuro*; Oshima, Masumi; ; *; et al.

Z. Phys., A, 357(4), p.349 - 350, 1997/00

no abstracts in English

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