In atomic physics, pairs of two atomic nuclei of different elements are called mirror nuclei if they have inverse numbers of neutrons N and protons Z with the same mass number A.
A pair of mirror partners consisting of the atomic nuclei E and X is therefore given if the following condition is fulfilled:
ZE = NX and ZX = NE.
In addition, the following conditions apply: AE = AX as well as ZE ≠ ZX.
The table below lists the mirror core pairs; The sorting is done by mass number A and Atomic number Z, so that each pair only appears once. In addition, the neutron numbers N and the nuclear spin are given.
[1] - Y. Y. Zong, C. Ma, Y. M. Zhao, A. Arima:
Mass relations of mirror nuclei.
Physical Review C, (2020), DOI 10.1103/PhysRevC.102.024302.
[2] - Paul-Gerhard Reinhard and Witold Nazarewicz:
Information content of the differences in the charge radii of mirror nuclei.
Physical Review C, (2022), DOI 10.1103/PhysRevC.105.L021301.
[3] - S. J. Novario, D. Lonardoni, S. Gandolfi, G. Hagen:
Trends of Neutron Skins and Radii of Mirror Nuclei from First Principles.
Physical Review Letters, (2023), DOI 10.1103/PhysRevLett.130.032501.
Last update: 2025-10-12
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