PoS - Proceedings of Science
Volume 396 - The 38th International Symposium on Lattice Field Theory (LATTICE2021) - Oral presentation
Finite volume corrections to forward Compton scattering off the nucleon
J.L. de la Parra
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Pre-published on: May 25, 2022
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We calculate the spin-averaged amplitude for doubly virtual forward Compton
scattering off nucleons in the framework of manifestly Lorentz-invariant
baryon chiral perturbation theory at complete one-loop order $O(p^4)$. The calculations are
carried out both in the infinite and in a finite volume. The obtained results allow for a
detailed estimation of the finite-volume corrections to the amplitude which can be extracted
on the lattice using the background field technique.
DOI: https://doi.org/10.22323/1.396.0307
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