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Multiple Parton Scattering in Nuclei: Parton Energy Loss

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arxiv hep-ph/0102230 v2 pith:SJBWLVDP submitted 2001-02-19 hep-ph nucl-th

Xin-Nian Wang , Xiaofeng Guo This is my paper · ORCID
classification hep-phnucl-th
keywords partonscatteringquarkenergyfragmentationfunctionslossmultiple
verification ladder T0 review T1 audit T2 compute T3 formal
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Multiple parton scattering and induced parton energy loss is studied in deeply inelastic scattering (DIS) off nuclei. The effect of multiple scattering of a highly off-shell quark and the induced parton energy loss is expressed in terms of the modification to the quark fragmentation functions. We derive such modified quark fragmentation functions and their QCD evolution equations in DIS using generalized factorization of higher twist parton distributions. We consider double-hard, hard-soft parton scattering as well as their interferences in the same framework. The final result, which depends on both the diagonal and off-diagonal twist-four parton distributions in nuclei, demonstrates clearly the Landau-Pomeranchuk-Migdal interference features and predicts a unique nuclear modification of the quark fragmentation functions.

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Cited by 11 Pith papers

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