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Fig. 6.3 demonstrates the effect of including all the terms generated by Eq. (6.4), not just the LO in 1 /E $^{+}$. Of course at higher E and p$_{T}$ the additional terms make little difference, but they regulate the otherwise divergent results in Δ p$_{T}$/p$_{T}$ as p$_{T}$ → 0. The Ter-Mikayelian effect, given by the difference between the m$_{γ}$ ̸ = 0 and m$_{γ}$ = 0 plots in Fig. 6.3, varies from 10-40% for charm and bottom energy loss. 

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