LEPTONS

• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2014,（9）
• 页码范围: 645-721
• 页数: 77页
• 语种: 中文

摘要

eJ-1/2 e MASS (atomic mass units u) The primary determination of an electron's mass comes from measuring the ratio of the mass to that of a nucleus,so that the result is obtained in u (atomic mass units).The conversion factor to MeV is more uncertain than the mass of the electron in u;indeed,the recent improvements in the mass determination are not evident when the result is given in MeV.In this datablock we give the result in u,and in the following datablock in MeV.