Woit · §7.2 The spin 1/2 particle in a magnetic field
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英文 OCR 草稿
The source names μ the magnetic moment operator and gives its formula.
机器草稿中的定义提及
Here is the vector describing the magnetic field, and
is an operator called the magnetic moment operator. The constants that appear are: − the electric charge, the speed of light, the mass of the particle, and a dimensionless number called the “gyromagnetic ratio”, which is approximately 2 for an electron, about 5.6 for a proton.