Spectroscopy of [sup 95]Ru at high spins

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

DOI:https://doi.org/10.1103/PhysRevC.50.1346· OSTI ID:7224094

Ghugre, S S; Patel, S B; Gupta, M ^[1]; Bhowmik, R K ^[2]; Sheikh, J A ^[3]

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1. Department of Physics, University of Bombay, Vidyanagari, Bombay 400098 (India)
2. Nuclear Science Centre, New Delhi 110067 (India)
3. Tata Institute of Fundamental Research, Bombay 400005 (India)

High spin states in the [ital N]=51 nucleus [sup 95]Ru were populated and studied using the reaction [sup 64]Zn([sup 35]Cl,3[ital pn])[sup 95]Ru at a beam energy of 140 MeV. Gamma-ray intensities and gamma-gamma coincidences were measured. Multipolarities of the transitions were extracted assuming stretched transitions. Forty new transitions have been found. The positive and the negative parity bands have been extended up to spins of 43/2[sup +] and 39/2[sup [minus]], respectively. The level scheme can be well understood up to moderate spins in terms of spherical shell model calculations within a limited configuration space. A weak coupling scheme in which a 2[ital d][sub 5/2] neutron is coupled to the excited [sup 94]Ru core was found to work reasonably well and reproduced the main features of the observed [sup 95]Ru yrast spectrum. A more rigorous approach to understanding the structure of these high spin states is the breaking of the [ital N]=50 neutron core. The top three transitions in the positive parity band (492, 599, and 744 keV) appear to be an indication of collective behavior.

• OSTI ID: 7224094
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:3; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
CHLORINE 35 REACTIONS
COINCIDENCE METHODS
COUNTING TECHNIQUES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EVEN-ODD NUCLEI
FERMIONS
GAMMA CASCADES
GAMMA SPECTROSCOPY
HADRONS
HEAVY ION REACTIONS
HIGH SPIN STATES
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 100-1000
NEUTRONS
NUCLEAR CASCADES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PROTONS
RADIOISOTOPES
RUTHENIUM 95
RUTHENIUM ISOTOPES
SHELL MODELS
SPECTROSCOPY
TARGETS
ZINC 64 TARGET