Neutron skin in a nucleus is a measure of the difference between the nucleus’ neutron and proton density root mean square radii. We show how atomic parity-violation effects are affected by neutron skin in isotopes [1]. Specifically, we calculate the effect in isotopes of Cs, Ba, Sm, Dy, Yb, Pb, Fr, and Ra. We conclude that if a 0.1% accuracy in the isotopic ratio measurement is reached, neutron skin effects may be detected. We also estimate the contributions of new physics to isotopic ratios.
[1] arXiv:1903.00123 (2019).