Quenching of hadron spectra in DIS on nuclear targets

Abstract

The multiple scatterings incurred by a hard quark produced in a nuclear medium induce the emission of soft gluons which carry a fraction of the quark energy and eventually affect the hadronization process. Here, the depletion of semi-inclusive hadron spectra in DIS on various nuclei (N, Ne, Cu, Kr) is computed as a function of nu and z to leading order in alpha_s through medium-modified fragmentation functions. Using the transport coefficient q previously determined from Drell-Yan production, the predictions are found to be in good agreement with EMC and HERMES preliminary data. Calculations on Xe targets are also presented and discussed.

20 pages, 8 figures

References in corpus (3)

• Hadron production in deep inelastic lepton-nucleus scattering
• Tomography of cold and hot QCD matter : tools and diagnosis
• Tomography of nuclear matter: Comparing Drell-Yan with deep inelastic scattering data

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