Role of thermal and photobeta decays in processes of nucleosynthesis of problematic p nuclei of {sup 113}In, {sup 115}Sn, {sup 92},{sup 94}Mo, and {sup 96},{sup 98}Ru in massive stars

Journal Article · Mon Apr 15 04:00:00 EDT 2013 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778813030101· OSTI ID:22163086

Hussain, Imad A. ^[1]

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1. Voronezh State University (Russian Federation)

The temperature dependence of the rates of {sup 113}Cd {yields}{sup 113}In, {sup 115}In {yields}{sup 115}Sn, {sup 92}Zr{yields}{sup 92}Nb {yields}{sup 92}Mo, {sup 94}Zr{yields}{sup 94}Nb {yields}{sup 94}Mo, {sup 96}Mo {yields}{sup 96}Tc{yields}{sup 96}Ru, and {sup 98}Mo{yields}{sup 98}Tc{yields}{sup 98}Ru thermal beta transitions was studied at temperatures of massive-star matter in the range of 1 Multiplication-Sign 10{sup 8}-6 Multiplication-Sign 10{sup 9} K. These decays are the possible channel of synthesis of the p nuclei of {sup 113}In, {sup 115}Sn, {sup 92},{sup 94}Mo, and {sup 96},{sup 98}Ru. The abundances of these nuclei present a challenge for models that study the explosivemechanism of synthesis. The contribution of photobeta decay to the synthesis of the aforementioned p nuclei was estimated. It was shown that the channel of thermal beta decay for {sup 113}In, {sup 115}Sn, {sup 94}Mo, and {sup 98}Ru p nuclei and the channel of photobeta decay for the {sup 96}Mo p nucleus could be efficient at the high-temperature quasiequilibrium stage of massive-star evolution.

• OSTI ID: 22163086
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 4 Vol. 76; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ABUNDANCE
BETA DECAY
CADMIUM 113
INDIUM 113
INDIUM 115
MATTER
MOLYBDENUM 92
MOLYBDENUM 94
MOLYBDENUM 96
NUCLEOSYNTHESIS
RUTHENIUM 96
RUTHENIUM 98
STAR EVOLUTION
STARS
TECHNETIUM 96
TECHNETIUM 98
TEMPERATURE DEPENDENCE
TIN 115