Source:http://linkedlifedata.com/resource/pubmed/id/14525235
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
8
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| pubmed:dateCreated |
2003-10-3
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| pubmed:abstractText |
The half-life, 3.8755(12) s, and superallowed branching ratio, 0.5315(12), for 22Mg beta decay have been measured with high precision. The latter depended on gamma-ray intensities being measured with an HPGe detector calibrated for relative efficiencies to an unprecedented 0.15%. Previous precise measurements of 0+ --> 0+ transitions have been restricted to the nine that populate stable daughter nuclei. No more such cases exist, and any improvement in a critical Cabibbo-Kobayashi-Maskawa unitarity test must depend on precise measurements of more exotic nuclei. With this branching-ratio measurement, we show those to be possible for T(z)=-1 parents. We obtain a corrected Ft value of 3071(9) s, in good agreement with expectations.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Aug
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| pubmed:issn |
0031-9007
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| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:day |
22
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| pubmed:volume |
91
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
082501
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| pubmed:year |
2003
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| pubmed:articleTitle |
High precision measurement of the superallowed 0+ --> 0+ beta decay of 22Mg.
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| pubmed:affiliation |
Cyclotron Institute, Texas A&M University, College Station, Texas 77843, USA.
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| pubmed:publicationType |
Journal Article
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