Role of the [ital g][sub 9/2] neutron orbital in the structure of [sup 65]Zn

Journal Article · Sat Oct 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.1813· OSTI ID:6909085

Banerjee, P; Sethi, B; Chatterjee, M B; Goswami, R ^[1]

---

1. Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Calcutta-700 064 (India)

Measurements of [gamma]-ray singles and [gamma][gamma]-coincidence spectra, [gamma]-ray angular distributions, and Doppler shift attenuation have been made, following the reaction [sup 63]Cu([sup 4]He,[ital pn])[sup 65]Zn at 30 MeV. The level scheme has been confirmed up to 5773 keV. The spins and parities of the three states at 3227.6, 3785.7, and 4938.0 keV, hitherto uncertain or unknown, are found to be 17/2[sup +], 17/2[sup +], and 21/2[sup +], respectively. The mean lives for these states, for which there is no information available in the literature, have been estimated, and the deduced [ital B]([ital E]2) values for the 4938.0[r arrow]3227.6 (21/2[sup +][r arrow]17/2[sup +]), 3227.6[r arrow]2053.5 (17/2[sup +][r arrow]13/2[sup +]), and 3785.7[r arrow]2053.5 (17/2[sup +][r arrow]13/2[sup +])-keV transitions are all found to be strongly enhanced with respect to the Weisskopf single-particle estimates indicating collectivity in the structure of the concerned states. Evidence is presented in favor of the interpretation of the positive parity states in [sup 65]Zn with [ital J][sup [pi]] values 9/2[sup +] to 21/2[sup +], as arising from the weak coupling of a [ital g][sub 9/2] neutron to the quadrupole excitations of the [sup 64]Zn core.

• OSTI ID: 6909085
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:4; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663220 -- Electromagnetic Transitions-- (1992-)
663440* -- D-
T-
& He-induced Reactions & Scattering-- (1992-)
663550 -- Nuclear Mass Ranges-- A=59-89-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BRANCHING RATIO
CHARGED-PARTICLE REACTIONS
COLLECTIVE EXCITATIONS
COPPER 63 TARGET
DAYS LIVING RADIOISOTOPES
DISTRIBUTION
E2-TRANSITIONS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXCITATION
EXCITED STATES
FERMIONS
GAMMA SPECTRA
HADRONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
LIFETIME
MEV RANGE
MEV RANGE 10-100
MULTIPOLE TRANSITIONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PARITY
PARTICLE PROPERTIES
RADIOISOTOPES
SPECTRA
SPIN
TARGETS
ZINC 65
ZINC ISOTOPES