Identification of [sup 162]Gd and a new type of identical bands

Conference · Tue Dec 01 04:00:00 EST 1998 · AIP Conference Proceedings

OSTI ID:6077121

Jones, E F; Gore, P M; Hamilton, J H; Ramayya, A V; Dodder, R S; Beyer, C J; Hwang, J K; Zhang, X Q; Zhu, S H; de Lima, A P; Ter-Akopian, G M; Ter-Akopian, G M; Aryaeinejad, R ^[1]; Oganessian, Yu Ts; Daniel, A V ^[2]; Asztalos, S J; Lee, I Y ^[3]; Stoyer, M A ^[4]

---

1. Idaho National Engineering Laboratory, Idaho Falls, Idaho 83415-2114 (United States) Physics Department, Mississippi State University, Mississippi State, Mississippi 39762 (United States)
2. Joint Institute for Nuclear Research, Dubna 141980 (Russia)
3. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
4. Lawrence Livermore

From [gamma]-[gamma]-[gamma] coincidence measurements in spontaneous fission of [sup 252]Cf, level energies were established to spins 14[sup +] to 20[sup +] in many neutron-rich nuclei. New isotope [sup 162]Gd was identified. Yrast bands of [sup 152,154,156]Nd, [sup 156,158,160]Sm, and [sup 160,162]Gd exhibit near-identical transition energies and moments of inertia (MOI) shifted by the same constant amounts for every spin state from 2[sup +] to 12[sup +] or 14[sup +] for nuclei differing by 2n, 4n, 2p, 4p, [alpha], [alpha]+2p, and [alpha]+2n. These shifted identical bands (SIB) are a new phenomenon. Analysis of all known even-even proton- to neutron-rich nuclei from Ba(Z=56) to Os(Z=76) reveal no SIB for proton-rich nuclei and few cases of SIB for the most neutron-rich pairs around N=98[endash]102 separated by 2n and 2p. [copyright] [ital 1998 American Institute of Physics.]

• DOE Contract Number: AC03-76SF00098; AC07-76ID01570; FG02-88ER40407; W-7405-ENG-48
• OSTI ID: 6077121
• Report Number(s): CONF-980672--
• Conference Information: Journal Name: AIP Conference Proceedings Journal Volume: 455:1
• Country of Publication: United States
• Language: English

Related Subjects

663470* -- Fission-- (1992-)
663590 -- Nuclear Mass Ranges-- A=220 & Above-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE NUCLEI
ACTINIDES
ALPHA DECAY RADIOISOTOPES
CALIFORNIUM
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
COINCIDENCE METHODS
COUNTING TECHNIQUES
DECAY
ELEMENTS
ENERGY LEVELS
EVEN-EVEN NUCLEI
FISSION
GADOLINIUM
GADOLINIUM ISOTOPES
GAMMA SPECTRA
HEAVY NUCLEI
ISOTOPES
METALS
MOMENT OF INERTIA
NEODYMIUM ISOTOPES
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
RADIOISOTOPES
RARE EARTHS
SAMARIUM ISOTOPES
SPECTRA
SPONTANEOUS FISSION
SPONTANEOUS FISSION RADIOISOTOPES
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
YEARS LIVING RADIOISOTOPES
YRAST STATES