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QED Corrections to Hadronic Observables

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arxiv 1702.03857 v1 pith:RNKIFGEP submitted 2017-02-13 hep-lat hep-ph

Agostino Patella This is my paper · ORCID
classification hep-lathep-ph
keywords correctionselectrically-chargedelectromagnetichadronicmethodsorderreviewsimulations
verification ladder T0 review T1 audit T2 compute T3 formal

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When aiming at the percent precision in hadronic quantities calculated by means of lattice simulations, isospin breaking effects become relevant. These are of two kinds: up/down mass splitting and electromagnetic corrections. In order to account properly for the latter, a consistent formulation of electrically-charged states in finite volume is needed. In fact on a periodic torus Gauss law and large gauge transformations forbid the propagation of electrically-charged states. In this talk I will review methods that have been used or proposed so far in order to circumvent this problem, while highlighting practical as well as conceptual pros and cons. I will also review and discuss various methods to calculate electromagnetic corrections to hadron masses and decay rates in numerical simulations.

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Forward citations

Cited by 7 Pith papers

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

  1. Isospin-breaking effects in inclusive hadronic $\tau$ data for the muon $(g-2)$ from first principles

    hep-lat 2026-07 unverdicted novelty 6.0 of 10

    A lattice QCD+QED strategy is outlined for calculating isospin-breaking effects in inclusive tau decays to support high-precision HVP contributions to muon g-2.

  2. New Energy-Loss Constraints on Dark Sectors from Deeply Inelastic Scattering with Initial State Radiation

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    A factorization-based method is outlined to derive energy-loss constraints on dark sector particles (spin 0 to 2) from ISR-modified lepton distributions in DIS, illustrated for MeV-GeV spin-0 cases at the EIC.

  3. Comparing QCD+QED via full simulation versus the RM123 method: U-spin window contribution to $a_\mu^{\mathrm{HVP}}$

    hep-lat 2025-06 accept novelty 6.0 of 10

    At fixed lattice spacing and volume with unphysical quark masses, direct QCD+QED simulation and the RM123 perturbative expansion give consistent U-spin window contributions to a_mu^HVP, with the direct simulation abou...

  4. Renormalising vector currents in lattice QCD using momentum-subtraction schemes

    hep-lat 2019-09 accept novelty 6.0 of 10

    Z_V for HISQ vector currents is exact and condensate-free in RI-SMOM and in a modified ratio scheme, but the standard RI'-MOM scheme has O(1%) condensate contamination.

  5. openQ*D code: a versatile tool for QCD+QED simulations

    hep-lat 2019-08 conditional novelty 6.0 of 10

    openQ*D is an open-source lattice code that simulates QCD plus QED with C* boundary conditions and Wilson fermions, extending openQCD and NSPT with new algorithmic features.

  6. Nucleon axial-vector form factor and radius from radiatively-corrected antineutrino scattering data

    hep-ph 2026-01 unverdicted novelty 5.0 of 10

    Radiative corrections applied to MINERvA antineutrino data yield updated values for the nucleon axial-vector form factor G_A and axial radius.

  7. Lepton anomalous magnetic moments: Theory

    hep-ph 2025-12 unverdicted novelty 2.0 of 10

    The paper provides an overview of theoretical calculations for lepton anomalous magnetic moments arising from quantum corrections in the Standard Model.

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