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Three-Loop Mixing of Dipole Operators

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arxiv hep-ph/0504194 v2 pith:FICQ5IJR submitted 2005-04-21 hep-ph

Martin Gorbahn , Ulrich Haisch , Mikolaj Misiak This is my paper · ORCID
classification hep-ph
keywords operatorsthree-loopanomalousdimensiondipolematrixalphaanalysis
verification ladder T0 review T1 audit T2 compute T3 formal
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We calculate the complete three-loop O(alpha_s^3) anomalous dimension matrix for the dimension-five dipole operators that arise in the Standard Model after integrating out the top quark and the heavy electroweak bosons. Our computation completes the three-loop anomalous dimension matrix of operators that govern low-energy |Delta F| = 1 flavor-changing processes, and represents an important ingredient of the next-to-next-to-leading order QCD analysis of the Bbar -> X_s gamma decay.

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Cited by 4 Pith papers

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

  1. The photon-energy spectrum in $B\to X_s\gamma$ to N$^3$LO: light-fermion and large-$N_{\rm c}$ corrections

    hep-ph 2026-03 unverdicted novelty 8.0 of 10

    N3LO calculation of the B to Xs gamma photon spectrum including complete light-fermion corrections, two massive fermion loops, and large-Nc terms, with improved results in kinetic and MSR mass schemes.

  2. Current-current operator contribution to the decay matrix in $B$-meson mixing at next-to-next-to-leading order of QCD

    hep-ph 2025-05 conditional novelty 6.0 of 10

    The full charm-mass dependence of the three-loop current-current contribution to the B-meson decay matrix is computed, yielding Delta_Gamma_s = (0.077 +/- 0.016) ps^-1 with the leading-term perturbative error reduced ...

  3. Investigating non-local contributions in $B_{s} \to \phi \bar{\ell} \ell$ including higher-twist effects

    hep-ph 2025-02 conditional novelty 6.0 of 10

    Including twist-5 and twist-6 B_s-meson distribution amplitudes enhances the charm-loop non-local form factors in B_s to phi l+l- by about an order of magnitude, producing a larger but still Standard-Model-consistent ...

  4. Radiative B to tensor meson decays at NLO in SCET

    hep-ph 2025-05 conditional novelty 4.0 of 10

    An NLO SCET calculation predicts B(B to K2*(1430) gamma) = (16.7 ± 6.4 ± 1.2) × 10^-6, close to the experimental average, with much smaller predictions for the a2 and f2 modes.

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