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Low-Energy Effective Field Theory below the Electroweak Scale: Anomalous Dimensions

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arxiv 1711.05270 v3 pith:ZOJAX5FZ submitted 2017-11-14 hep-ph

Low-Energy Effective Field Theory below the Electroweak Scale: Anomalous Dimensions

classification hep-ph
keywords operatorsdimension-fivedimension-sixequationsleptonnumberanomalousbaryon
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We compute the one-loop anomalous dimensions of the low-energy effective Lagrangian below the electroweak scale, up to terms of dimension six. The theory has 70 dimension-five and 3631 dimension-six Hermitian operators that preserve baryon and lepton number, as well as additional operators that violate baryon number and lepton number. The renormalization group equations for the quark and lepton masses and the QCD and QED gauge couplings are modified by dimension-five and dimension-six operator contributions. We compute the renormalization group equations from one insertion of dimension-five and dimension-six operators, as well as two insertions of dimension-five operators, to all terms of dimension less than or equal to six. The use of the equations of motion to eliminate operators can be ambiguous, and we show how to resolve this ambiguity by a careful use of field redefinitions.

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