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Journal Articles

Parity assignment for low-lying dipole states in $$^{58}$$Ni

Shizuma, Toshiyuki*; Omer, M.; Hayakawa, Takehito*; Minato, Futoshi*; Matsuba, Shunya*; Miyamoto, Shuji*; Shimizu, Noritaka*; Utsuno, Yutaka

Physical Review C, 109(1), p.014302_1 - 014302_7, 2024/01

https://doi.org/10.1103/PhysRevC.109.014302
 Times Cited Count：0 Percentile：0.19(Physics, Nuclear)

Journal Articles

Experimental identification of spin-parities and single-particle configurations in $$^{257}$$No and its $$alpha$$-decay daughter $$^{253}$$Fm

Asai, Masato; Tsukada, Kazuaki; Sakama, Minoru*; Ichikawa, Shinichi; Ishii, Tetsuro; Nagame, Yuichiro; Nishinaka, Ichiro; Akiyama, Kazuhiko; Osa, Akihiko; Oura, Yasuji*; et al.

Physical Review Letters, 95(10), p.102502_1 - 102502_4, 2005/09

https://doi.org/10.1103/PhysRevLett.95.102502
 Times Cited Count：63 Percentile：87.59(Physics, Multidisciplinary)

Excited states in $$^{253}$$Fm fed by the $$alpha$$ decay of $$^{257}$$No have been established through $$alpha$$-$$gamma$$ and $$alpha$$-electron coincidence spectroscopy using a gas-jet transport system and an on-line isotope separator. The spin-parity of the 124.1 keV level in $$^{253}$$Fm has been identified on the basis of the measured internal conversion coefficients. The $$nu 3/2^{+}[622]$$ configuration has been assigned to the ground state of $$^{257}$$No as well as to the 124.1 keV level. It was found that the ground state configuration of $$^{257}$$No is different from that of lighter $$N=155$$ isotones.

Journal Articles

EC and $$alpha$$ decays of $$^{235}$$Am

Asai, Masato; Sakama, Minoru*; Tsukada, Kazuaki; Ichikawa, Shinichi; Haba, Hiromitsu*; Nishinaka, Ichiro; Nagame, Yuichiro; Goto, Shinichi*; Kojima, Yasuaki*; Oura, Yasuji*; et al.

European Physical Journal A, 22(3), p.411 - 416, 2004/12

https://doi.org/10.1140/epja/i2004-10044-6
 Times Cited Count：9 Percentile：51.36(Physics, Nuclear)

EC and $$alpha$$ decays of $$^{235}$$Am have been studied by means of $$gamma$$-ray spectroscopy. Excited states in $$^{235}$$Pu have been established for the first time, and tentative spin-parity and Nilsson assignments were given to these levels. The ground state of $$^{235}$$Am was evaluated to be the $$pi 5/2^{-}[523]$$ state from the experimental results. It was found that the $$pi 5/2^{-}[523]$$ state in $$^{231}$$Np is located at $$<$$15~keV, which allowed us to determine the $$Q_{alpha}$$ value of $$^{235}$$Am as 6569$$^{+27}_{-12}$$~keV, in combination with the measured $$alpha$$-particle energy.

Journal Articles

Soft-rotator model analysis of collective band structures of even-even actinide nuclei

Chiba, Satoshi; ; *

Journal of Nuclear Science and Technology, 34(5), p.490 - 497, 1997/05

https://doi.org/10.3327/jnst.34.490
 Times Cited Count：2 Percentile：23.01(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Decay of $$^{1}$$$$^{8}$$$$^{9}$$Re

*; ;

Journal of the Physical Society of Japan, 46(4), p.1067 - 1074, 1979/00

https://doi.org/10.1143/JPSJ.46.1067
 Times Cited Count：5

no abstracts in English

JAEA Reports

Level Schemes for Some Fission Product Nuclides; Comparison of Level Schemes Used by JAERI and Petten

; *; *

JAERI-M 7734, 55 Pages, 1978/06

JAERI-M-7734.pdf:1.14MB

no abstracts in English

Oral presentation

Parities of low-energy states in Hf and W isotopes

Omer, M.; Shizuma, Toshiyuki*; Hajima, Ryoichi*; Koizumi, Mitsuo

no journal, , 

Nuclear resonance fluorescence experiments have been performed on Hf and W natural targets in the 2.5-3.1 MeV energy range using quasi monochromatic $$gamma$$-ray beams generated from laser Compton scattering at the HI$$gamma$$S facility, Duke University. The complete polarization of the incident $$gamma$$-rays has provided the determination of the parity of states in this energy range. Results of these experiment have revealed the parity of about 15 levels in Hf and W nuclei. Such data provide knowledge about the nondestructive detection system of nuclear material by understanding the so-called scissors mode encountered in deformed nuclei including uranium and plutonium isotopes.

Oral presentation

Measurements of parity violation in neutron induced reactions

Snow, W. M.*; Auton, C.*; Endo, Shunsuke; Fujioka, Hiroyuki*; Ide, Ikuo*; Ino, Takashi*; Goto, Yu*; Kawamura, Shiori*; Kitaguchi, Masaaki*; Kobayashi, Ryuju*; et al.

no journal, , 

no abstracts in English

8 (Records 1-8 displayed on this page)
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