High spin structure of [sup 84]Y

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

DOI:https://doi.org/10.1103/PhysRevC.49.116· OSTI ID:5287017

Chattopadhyay, S; Jain, H C; Paul, S D; Sheikh, J A; Jhingan, M L ^[1]

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1. Tata Institute of Fundamental Research, Bombay 400 005 (India)

The high spin levels of [sup 84]Y have been established up to 12 MeV excitation energy and probable spin of 25[sup +] through the reaction [sup 59]Co([sup 28]Si,2[ital pn])[sup 84]Y using in-beam [gamma]-ray spectroscopic techniques. The [gamma] transitions in [sup 84]Y have been identified through the particle-gamma coincidences. The level scheme was constructed through the [gamma]-[gamma] coincidences, angular distribution, and directional correlation orientation ratios. The positive parity yrast band built on the ([pi][ital g][sub 9/2][direct product][nu][ital g][sub 9/2]) configuration shows a large signature splitting and a signature inversion at [ital I][similar to]11[h bar]. The measured [ital B]([ital E]2; [ital I][r arrow][ital I][minus]2) values give a deformation [beta][sub 2][similar to]0.17. The negative parity band shows a signature inversion at [ital I][similar to]11[h bar] and [ital B]([ital M]1; [ital I][r arrow][ital I][minus]1) enhancement for [ital I][gt]11[h bar]. The projected Hartree-Fock and the cranked shell model calculations provide an understanding for the observed properties of the energy levels in [sup 84]Y.

• OSTI ID: 5287017
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:1; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

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663120 -- Nuclear Structure Models & Methods-- (1992-)
663220 -- Electromagnetic Transitions-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CALCULATION METHODS
CHARGED-PARTICLE REACTIONS
COBALT 58 TARGET
COMPOUND-NUCLEUS REACTIONS
CRANKING MODEL
E2-TRANSITIONS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
FERMIONS
HADRONS
HARTREE-FOCK METHOD
HEAVY ION REACTIONS
HIGH SPIN STATES
INTERMEDIATE MASS NUCLEI
ISOTOPES
M1-TRANSITIONS
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
PROTONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SILICON 28 REACTIONS
TARGETS
YRAST STATES
YTTRIUM 84
YTTRIUM ISOTOPES