The angular pattern in the hyperfine structure of Xe I and Kr I atoms

Abstract Recent reviews of the hyperfine structure xenon and krypton have highlighted variety values taken by coefficients A B these atoms. These variations, as functions atomic angular momenta, were however not explained quantitatively. This article shows simple picture momentum algebra that make it possible to account for observed trend. The only necessary approximations are consider interaction outer electron negligible with respect coupling p5 core nucleus, assume Racah ||(p5)j l[K]J F〉basis, conventionally used states noble gases, makes a fitting description hierarchy their couplings. way calculation corroborates apparently erratic in Xe I Kr up confirmation validity approximations.