Up to and beyond ninth order in opacity: Radiative energy loss with GLV

Details Up to and beyond ninth order in opacity: Radiative energy loss with GLV Up to and beyond ninth order in opacity: Radiative energy loss with GLV

2008-04-29

arxiv.org/abs/0804.4704v1

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

A new examination of the GLV all-orders opacity result for radiative energy loss is presented. The opacity expansion is shown to be a Dyson expansion of a Schrodinger-like (or diffusion) equation, a form also found in BDMPS-Z-ASW, AMY and Higher Twist formalisms of radiative energy loss. A new, efficient numerical evaluation of the GLV all-orders result gives results up to and beyond ninth order in opacity. This presents a solution to this Schrodinger-like equation to almost arbitrary accuracy for lengths and densities applicable at RHIC and LHC. The first order is found to be most important, although higher orders implemented in a geometry integration will be needed for quantitative jet tomography.

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