Low-energy structure of 66Co39 and 68Co41 populated through β decay

Liddick, SN; Abromeit, B; Ayres, A; Bey, A; Bingham, CR; Bolla, M; Cartegni, L; Crawford, HL; Darby, IG; Grzywacz, R; Ilyushkin, S; Larson, N; Madurga, M; Miller, D; Padgett, S; Paulauskas, S; Rajabali, Mustafa; Rykaczewski, K; Suchyta, S

doi:10.1103/PhysRevC.85.014328

Low-energy structure of 66Co39 and 68Co41 populated through β decay

Author:

Liddick, SN

Abromeit, B ; Ayres, A ; Bey, A ; Bingham, CR ; Bolla, M ; Cartegni, L ; Crawford, HL ; Darby, IG ; Grzywacz, R ; Ilyushkin, S ; Larson, N ; Madurga, M ; Miller, D ; Padgett, S ; Paulauskas, S ; Rajabali, Mustafa ; Rykaczewski, K ; Suchyta, S

Keywords:

Science & Technology, Physical Sciences, Physics, Nuclear, Physics, SUBSHELL CLOSURE, HALF-LIVES, NEUTRON, ISOTOPES, SPECTROSCOPY, DEFORMATION, NUCLEI, N=40, TI, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, 5106 Nuclear and plasma physics

Abstract:

The low-energy level structures for the neutron-rich Co isotopes at N = 39 and N = 41 are constructed following the beta decay of the respective even-even Fe isotopes. Spin and parity assignments of the lowest energy populated state in 66Co and 68Co are consistent with a 1+ spin and parity assignment and attributed to the coupling of the deformed proton configurations identified in 67Co and deformed neutron configurations inferred from neighboring Fe isotones. Comparisons along the N = 39 and N = 41 isotonic chains reveal a similarity in the structures of the Co and Mn isotopes.