论文标题
Riken Ral的FAMU实验，以精确度量质子半径
The FAMU experiment at RIKEN RAL for a precise measure of the proton radius
论文作者
论文摘要
Riken Ral的FAMU实验的目标是测量Muonic氢的基态超精细分裂，以便确定质子Zemach半径的精度优于$ 5 \ times 10^{ - 3} $。该测量与使用普通氢进行的测量的比较可能有助于解决所谓的“质子半径拼图”，这是由质子电荷半径差异$6σ$差异触发的，如Muonic Lamb Shings所提取的，以及基于E-P散射和普通氢态的值。
The goal of the FAMU experiment at RIKEN RAL is the measure of the hyperfine splitting of the ground state of the muonic hydrogen, to allow a determination of the proton Zemach radius with a precision better than $5 \times 10^{-3}$ . The comparison of this measurement with the ones done with ordinary hydrogen may help to solve the so-called "proton radius puzzle", triggered by the $6 σ$ discrepancy in the proton charge radius value as extracted from muonic Lamb shift and the value based on e-p scattering and ordinary hydrogen spectroscopy.
