标题： 双光子交换在中子上和超精细分裂 显示英文标题

标题： Two-photon exchange on neutron and the hyperfine splitting

摘要： 我们计算中子对S能级的超精细分裂的双光子交换贡献。 我们更新中子的Zemach半径值，估计总反冲和极化校正。 结果表明，在电子原子中的双光子交换比主要的Zemach项大一个数量级，并且在电子氢和μ子氢中符号不同。 显示英文摘要

摘要： We calculate the contribution from the two-photon exchange on the neutron to the hyperfine splitting of S energy levels. We update the value of the neutron Zemach radius, estimate total recoil and polarizability corrections. The resulting two-photon exchange in electronic atoms exceeds by an order of magnitude the leading Zemach term and has different sign both in electronic and muonic hydrogen.