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On Power Suppressed Operators and Gauge Invariance in SCET

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arxiv hep-ph/0303156 v3 pith:BR7AYVLJ submitted 2003-03-19 hep-ph

Christian W. Bauer , Dan Pirjol , Iain W. Stewart This is my paper · ORCID
classification hep-ph
keywords gaugeoperatorspowersuppressedscetinvariancesoft-collineartheory
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The form of collinear gauge invariance for power suppressed operators in the soft-collinear effective theory is discussed. Using a field redefinition we show that it is possible to make any power suppressed ultrasoft-collinear operators invariant under the original leading order gauge transformations. Our manipulations avoid gauge fixing. The Lagrangians to O(lambda^2) are given in terms of these new fields. We then give a simple procedure for constructing power suppressed soft-collinear operators in SCET_II by using an intermediate theory SCET_I.

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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. Hidden self-energy contributions of collinear functions in SCET

    hep-ph 2025-12 conditional novelty 6.0 of 10

    Quark self-energy contributions on external legs in SCET can be hidden in Wilson-line diagrams at subleading power when a modified operator basis is used.

  2. Non-linear dynamics of jet quenching

    hep-ph 2024-11 conditional novelty 5.0 of 10

    Jet energy loss out of the cone is governed by a non-linear rate equation whose solution feeds a non-linear DGLAP evolution, enabling resummation of alpha_s ln(1/R), alpha_s ln(R/theta_c), and powers of alpha_s L.

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