Non-perturbative scale evolution of four-fermion operators

M. Guagnelli , J. Heitger , C. Pena , S. Sint , A. Vladikas

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classification ✦ hep-lat

keywords gammaoperatorsfour-fermionappearapplycalculationscomponentsdetermine

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We apply the Schroedinger Functional (SF) formalism to determine the renormalisation group running of four-fermion operators which appear in the effective weak Hamiltonian of the Standard Model. Our calculations are done using Wilson fermions and the parity-odd components of the operators. Preliminary results are presented for the operator $O_{VA}=(\bar s \gamma_\mu d)(\bar s \gamma_\mu \gamma_5 d)$.

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Non-perturbative scale evolution of four-fermion operators

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