Abstract
I report on some theoretical progress concerning the calculation of gluon bremsstrahlung for very high energy particles crossing a weakly-coupled quark-gluon plasma. (i) I advertise that two of the several formalisms used to study this problem, the BDMPS-Zakharov formalism and the AMY formalism (the latter used only for infinite, uniform media), can be made equivalent when appropriately formulated. (ii) A standard technique to simplify calculations is to expand in inverse powers of logarithms ln ( E / T ) . I give an example where such expansions are found to work well for ω / T ≳ 10 where ω is the bremsstrahlung gluon energy. (iii) Finally, I report on perturbative calculations of q ˆ .
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