Analysis of isomeric ratios for medium-mass nuclei

Journal Article · Thu Sep 15 04:00:00 EDT 2016 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778816050070· OSTI ID:22612623

Danagulyan, A. S.; Bakhshiyan, T. M. ^[1]; Kerobyan, I. A. ^[2]

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1. Yerevan State University (Armenia)
2. Yerevan Physics Institute (YerPhI), A.I. Alikhanian National Science Laboratory (Armenia)

Values of the isomeric ratios for product nuclei originating from simple charge-exchange reactions were analyzed. The cross sections for the formation of product nuclei in ground and isomeric states were calculated with the aid of the TALYS 1.4 and EMPIRE 3.2 codes. The calculated values of the isomeric ratios were compared with their experimental counterparts taken from the EXFOR database. For the {sup 86,87}Y, {sup 94,95,96,99}Tc, and {sup 44}Sc nuclei, the experimental values of the isomeric ratios exceed the respective calculated values. The nuclei in question feature weak deformations and have high-spin yrast lines and rotational bands. The possible reason behind the discrepancy between theoretical and experimental isomeric ratios is that the decay of yrast states leads with a high probability to the formation of isomeric states of detected product nuclei.

• OSTI ID: 22612623
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 5 Vol. 79; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGE-EXCHANGE REACTIONS
CROSS SECTIONS
ISOMER RATIO
NUCLEAR DEFORMATION
PARTICLE DECAY
ROTATIONAL STATES
SCANDIUM 44
TECHNETIUM 94
TECHNETIUM 95
TECHNETIUM 96
TECHNETIUM 99
YRAST STATES
YTTRIUM 86
YTTRIUM 87