# Electromagnetic finite-size effects beyond the point-like approximation

@article{Carlo2021ElectromagneticFE, title={Electromagnetic finite-size effects beyond the point-like approximation}, author={Matteo Di Carlo and Maxwell T. Hansen and Nils Hermansson-Truedsson and Antonin Portelli}, journal={EPJ Web of Conferences}, year={2021} }

We present a model-independent and relativistic approach to analytically derive electromagnetic finite-size effects beyond the point-like approximation. The key element is the use of electromagnetic Ward identities to constrain vertex functions, and structure-dependence appears via physical form-factors and their derivatives. We apply our general method to study the leading finitesize structure-dependence in the pseudoscalar mass (at order 1/L3) as well as in the leptonic decay amplitudes of…

## 3 Citations

### Structure-Dependent Electromagnetic Finite-Size Effects

- PhysicsProceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021)
- 2022

We present a model-independent and relativistic approach to analytically derive electromagnetic finite-size effects beyond the point-like approximation. The key element is the use of electromagnetic…

### Near Physical Point Lattice Calculation of Isospin-Breaking Corrections to $K_{\ell2}/\pi_{\ell2}$

- PhysicsProceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021)
- 2022

Andrew Zhen Ning Yong,a,∗ Peter Boyle, Matteo Di Carlo, Felix Erben, Vera Gülpers, Maxwell T. Hansen, Tim Harris, Nils Hermansson-Truedsson, Raoul Hodgson, Andreas Jüttner, Antonin Portelli and James…

### B → Dℓνℓ form factors beyond leading power and extraction of |Vcb| and R(D)

- Materials ScienceJournal of High Energy Physics
- 2022

We investigate the subleading-power corrections to the exclusive B → Dℓνℓ form factors at O\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts}…

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