Abstract
An outline for research to be done is given. In the heavy ion experiments at RHIC and the LHC, it is widely believed that a state of matter known as the quark-gluon plasma (QGP) has been produced. The so-called hard particles, or particles with very high momentum that are produced as a consequence of the asymptotic freedom of QCD, can be used as tomographic probes of the QGP. We will study the way in which energy is dissipated in this QGP by calculating, in pQCD, short path length corrections to the well-known energy loss formulae. This calculation is necessary to address the discovery at the LHC that shockingly small systems appear to exhibit collective behaviour.
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