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Title: Analysis of isomeric ratios for medium-mass nuclei

Abstract

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.

Authors:
; ;  [1];  [2]
  1. Yerevan State University (Armenia)
  2. Yerevan Physics Institute (YerPhI), A.I. Alikhanian National Science Laboratory (Armenia)
Publication Date:
OSTI Identifier:
22612623
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Atomic Nuclei; Journal Volume: 79; Journal Issue: 5; Other Information: Copyright (c) 2016 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Danagulyan, A. S., Hovhannisyan, G. H., E-mail: hov-gohar@ysu.am, Bakhshiyan, T. M., and Kerobyan, I. A. Analysis of isomeric ratios for medium-mass nuclei. United States: N. p., 2016. Web. doi:10.1134/S1063778816050070.
Danagulyan, A. S., Hovhannisyan, G. H., E-mail: hov-gohar@ysu.am, Bakhshiyan, T. M., & Kerobyan, I. A. Analysis of isomeric ratios for medium-mass nuclei. United States. doi:10.1134/S1063778816050070.
Danagulyan, A. S., Hovhannisyan, G. H., E-mail: hov-gohar@ysu.am, Bakhshiyan, T. M., and Kerobyan, I. A. Thu . "Analysis of isomeric ratios for medium-mass nuclei". United States. doi:10.1134/S1063778816050070.
@article{osti_22612623,
title = {Analysis of isomeric ratios for medium-mass nuclei},
author = {Danagulyan, A. S. and Hovhannisyan, G. H., E-mail: hov-gohar@ysu.am and Bakhshiyan, T. M. and Kerobyan, I. A.},
abstractNote = {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.},
doi = {10.1134/S1063778816050070},
journal = {Physics of Atomic Nuclei},
number = 5,
volume = 79,
place = {United States},
year = {Thu Sep 15 00:00:00 EDT 2016},
month = {Thu Sep 15 00:00:00 EDT 2016}
}