Identification of Mixed-Symmetry States in an Odd-Mass Nearly Spherical Nucleus

Journal Article · Fri Aug 11 00:00:00 EDT 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.97.062504· OSTI ID:20860641

Orce, J N; McKay, C J; Lesher, S R; Kumar, A; McEllistrem, M T ^[1]; Holt, J D; Holt, J W; Kuo, T T. S. ^[2]; Linnemann, A; Fransen, C; Warr, N; Werner, V; Jolie, J ^[3]; Pietralla, N ^[2]; Yates, S W ^[1]

---

1. Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055 (United States)
2. Nuclear Structure Laboratory, Department of Physics and Astronomy, SUNY, Stony Brook, New York 11794-3800 (United States)
3. Institut fuer Kernphysik, Universitaet zu Koeln, 50937 Cologne (Germany)

The low-spin structure of {sup 93}Nb has been studied using the (n,n{sup '}{gamma}) reaction at neutron energies ranging from 1.5 to 3 MeV and the {sup 94}Zr(p,2n{gamma}){sup 93}Nb reaction at bombarding energies from 11.5 to 19 MeV. States at 1779.7 and 1840.6 keV, respectively, are proposed as mixed-symmetry states associated with the {pi}2p{sub 1/2}{sup -1}x(2{sub 1,MS}{sup +},{sup 94}Mo) coupling. These assignments are derived from the observed M1 and E2 transition strengths to the 2p{sub 1/2}{sup -1}x(2{sub 1}{sup +},{sup 94}Mo) symmetric one-phonon states, energy systematics, spins and parities, and comparison with shell model calculations.

• OSTI ID: 20860641
• Journal Information: Physical Review Letters, Vol. 97, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.97.062504; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
E2-TRANSITIONS
M1-TRANSITIONS
MASS
MEV RANGE 10-100
MOLYBDENUM 94
NEUTRONS
NIOBIUM 93
PARITY
PHONONS
PROTON REACTIONS
SHELL MODELS
SPIN
SYMMETRY
ZIRCONIUM 94 TARGET