HIGHLIGHTS
SUMMARY
The neutron skin Rnp ≡ Rn - R p of a nucleus quantifies the difference between the neutron and the proton nuclear distribution radii, Rn and R p, respectively. The PREX-II Collaboration released their new measurement of the lead neutron skin through polarPREX-II 208 ized electron-lead scattering, namely Rnp ( Pb)= * † Rnp ( Pb)=0.30 ± 0.18 fm. In this regime, the value of sW is rather precisely measured 2 SM to be close to sW, thus, if the interpretation is correct, CREX is expected to measure a thin calcium neutron skin, compatible with . . .
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