期刊
PHYSICAL REVIEW C
卷 78, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.78.035501
关键词
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资金
- U. S. Department of Energy [DE-FG02-97ER41014]
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- U.S. Department of Energy (DOE) [DE-FG02-97ER41014] Funding Source: U.S. Department of Energy (DOE)
We study the formalism to include isospin-symmetry-breaking corrections when extracting the up-down Cabibbo-Kobayashi-Maskawa matrix element from superallowed 0(+) -> 0(+) nuclear beta decay. We show that there are no first-order isospin-symmetry-breaking corrections to the relevant nuclear matrix elements. We find corrections to the treatment of Towner and Hardy, and assess these using schematic models of increasing complexity.
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