g factors

[Franziska1]

a, 111 Cd ground state mu=-0.5948861(1), I=1/2
111 Cd 245 keV level mu= -0.766(3), I=5/2
mu_N = (e hbar)/(2 m_p), e… elementar charge, m_p mass of proton
apply to formular g = (hbar mu)/(mu_N I)

b, Dirac theory as done here in course: g =2, but there exists an anomalous magnetic moment of electron (interaction with virtual photons in QED) therefore g is slightly larger.

c, mu = -1.913 mu_N

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