 {\cal T}'_{00} \gamma_{\rm hopf}(g = 0.0) \; &=& \;    -0.000~000~000\,, \nonumber\\[0ex] {\cal T}'_{00} \gamma_{\rm hopf}(g = 0.0) \; &=& \;    -0.000~000~000\,, \nonumber\\[0ex] {\cal T}'_{00} \gamma_{\rm hopf}(g = 0.0) \; &=& \;    -0.000~000~000\,