Identification of mixed-symmetry states in an odd-mass nearly spherical nucleus.
The low-spin structure of 93Nb has been studied using the (n,n'gamma) reaction at neutron energies ranging from 1.5 to 3 MeV and the 94Zr(p,2ngamma)93Nb 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 pi2p(1/2)-1x(2(1),MS+,94Mo) coupling. These assignments are derived from the observed M1 and E2 transition strengths to the 2p(1/2)-1x(2(1)+,94Mo) symmetric one-phonon states, energy systematics, spins and parities, and comparison with shell model calculations.
Orce
J N
JN
Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055, USA. jnorce@pa.uky.edu
Holt
J D
JD
Linnemann
A
A
McKay
C J
CJ
Lesher
S R
SR
Fransen
C
C
Holt
J W
JW
Kumar
A
A
Warr
N
N
Werner
V
V
Jolie
J
J
Kuo
T T S
TT
McEllistrem
M T
MT
Pietralla
N
N
Yates
S W
SW