Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Medium modified Fragmentation Functions with open source xFitter   A new analysis of the modification of the hadronization process in the
nuclear medium for pions is presented. The effective description is condensed
in a set of medium modified fragmentation functions (nFFs) obtained at
next-to-leading order (NLO) accuracy. The study was made using the open-source
tool xFitter, conveniently modified to incorporate semi-inclusive processes.
Theoretical uncertainties for the nFFs are also provided.

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The categories of this paper are: chao-dyn
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The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
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The categories of this paper are: econ
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The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol
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The categories of this paper are: nlin
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The categories of this paper are: hep-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: physics
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The categories of this paper are: solv-int
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The categories of this paper are: stat