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The three-loop unpolarized and polarized non-singlet anomalous dimensions from off shell operator matrix elements

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arxiv 2107.06267 v1 pith:4ZHLHZEL submitted 2021-07-13 hep-ph hep-lathep-th

classification hep-phhep-lathep-th
keywords anomalousdimensionscalculateelementsmatrixoperatorpolarizedshell
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

We calculate the unpolarized and polarized three--loop anomalous dimensions and splitting functions $P_{\rm NS}^+, P_{\rm NS}^-$ and $P_{\rm NS}^{\rm s}$ in QCD in the $\overline{\sf MS}$ scheme by using the traditional method of space--like off shell massless operator matrix elements. This is a gauge--dependent framework. For the first time we also calculate the three--loop anomalous dimensions $P_{\rm NS}^{\rm \pm tr}$ for transversity directly. We compare our results to the literature.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Energy Correlators Resolving Proton Spin

    hep-ph 2025-09 unverdicted novelty 7.0 of 10

    The work establishes a correspondence between spin-dependent energy correlators and polarized TMDs/NECs using SCET, yielding N3LL/N2LL predictions for correlation patterns in current and target fragmentation regions.

  2. Beyond Scale Variations: Perturbative Theory Uncertainties from Nuisance Parameters

    hep-ph 2024-11 conditional novelty 7.0 of 10

    A framework that turns missing higher-order perturbative coefficients into fit-able theory nuisance parameters, giving correlated and statistically meaningful theory uncertainties.

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