Research output: Contribution to journal › Article › peer-review
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Journal | Physical Review Letters |
---|---|
Date | Accepted/In press - 7 Jan 2021 |
Date | Published (current) - 19 Feb 2021 |
Issue number | 7 |
Volume | 126 |
Pages (from-to) | 072501 |
Original language | English |
We studied the proton-rich T_{z}=-1 nucleus ^{70}Kr through inelastic scattering at intermediate energies in order to extract the reduced transition probability, B(E2;0^{+}→2^{+}). Comparison with the other members of the A=70 isospin triplet, ^{70}Br and ^{70}Se, studied in the same experiment, shows a 3σ deviation from the expected linearity of the electromagnetic matrix elements as a function of T_{z}. At present, no established nuclear structure theory can describe this observed deviation quantitatively. This is the first violation of isospin symmetry at this level observed in the transition matrix elements. A heuristic approach may explain the anomaly by a shape change between the mirror nuclei ^{70}Kr and ^{70}Se contrary to the model predictions.
accepted PRL
Project: Research project (funded) › Research
Project: Research project (funded) › Research
Project: Research project (funded) › Research
Project: Research project (funded) › Research
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