Rotational bands in {sup 101{endash}103}Nb and {sup 98,100}Y nuclei and identification of yrast bands in {sup 146}La and {sup 149}Pr

Journal Article · Tue Dec 01 00:00:00 EST 1998 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.58.3252· OSTI ID:670247

Hwang, J K; Ramayya, A V; Hamilton, J H; Peker, L K; Kormicki, J; Ginter, T N; Babu, B R; Beyer, C J; Jones, E F; Zhu, S J; Ter Akopian, G M; Daniel, A V ^[1]; Gilat, J; Rasmussen, J O; Donangelo, R ^[2]; Donangelo, R ^[3]; Zhu, S J ^[4]; Griffin, H C ^[5]; Ter Akopian, G M; Oganessian, Y T ; Daniel, A V ^[6]; Ter Akopian, G M; Daniel, A V ^[7]; Ma, W C; Varmette, P G ^[8]; Cole, J D; Aryaeinejad, R; Drigert, M W ^[9]; Stoyer, M A ^[10]

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1. Physics Department, Vanderbilt University, Nashville, Tennessee 37235 (United States)
2. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
3. Instituto de Fisica, Universidade Federal do Rio de Janeiro, C.P. 68528, 21945-970 Rio de Janeiro (Brazil)
4. Physics Department, Tsinghua University, Beijing, Peoples Republic of (China)
5. University of Michigan, Ann Arbor, Michigan 48104 (United States)
6. Joint Institute for Nuclear Research, Dubna 141980 (Russia)
7. Joint Institute for Heavy Ion Research, Oak Ridge, Tennessee 37835 (United States)
8. Department of Physics, Mississippi State University, Mississippi 39762 (United States)
9. Idaho National Engineering Laboratory, Idaho Falls, Idaho 83415 (United States)
10. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

Several {gamma} transitions in {sup 101{endash}103}Nb, {sup 98,100}Y, {sup 146}La, and {sup 149}Pr are identified from spontaneous fission studies employing a {sup 252}Cf source and the Gammasphere detector array. In particular, the pairing-free bands in {sup 100}Y and {sup 102}Nb are extended, two rather highly deformed negative-parity bands feeding the 4.3-s {beta}-decaying isomer of {sup 102}Nb are identified, and their possible bandhead configurations are discussed. In the case of {sup 101,103}Nb, we have extended previously reported level schemes by over 20 transitions in each nuclide. For the fission partners {sup 146}La and {sup 149}Pr we have elucidated their previously unreported yrast level schemes. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 670247
• Journal Information: Physical Review, C, Vol. 58, Issue 6; Other Information: PBD: Dec 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
YRAST STATES
ROTATIONAL STATES
SPONTANEOUS FISSION
ENERGY LEVELS
DEFORMED NUCLEI
NIOBIUM 101
NIOBIUM 102
NIOBIUM 103
YTTRIUM 98
YTTRIUM 100
LANTHANUM 146
PRASEODYMIUM 149