期刊
PHYSICAL REVIEW LETTERS
卷 115, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.222502
关键词
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资金
- PRIN [2001024324_01302]
- Polish National Center for Science [2013/08/M/ST2/00591, 2011/03/B/ST2/01894]
- Spanish Grant [FPA2011-29854-C04-01]
- German Bundesministerium fur Bildung und Forschung (BMBF) [05P12PKFNE TP4]
The isospin mixing was deduced in the compound nucleus Zr-80 at an excitation energy of E* = 54 MeV from the gamma decay of the giant dipole resonance. The reaction Ca-40 + Ca-40 at E-beam = 136 MeV was used to form the compound nucleus in the isospin I = 0 channel, while the reaction Cl-37 + Ca-44 at E-beam = 95 MeV was used as the reference reaction. The. rays were detected with the AGATA demonstrator array coupled with LaBr3:Ce detectors. The temperature dependence of the isospin mixing was obtained and the zero-temperature value deduced. The isospin-symmetry-breaking correction delta(C) used for the Fermi superallowed transitions was extracted and found to be consistent with beta-decay data.
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