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arXiv · 2412.05060

Implementing the RFT finite-volume formalism for three pions across all non-maximal isospins

Athari Alotaibi·Maxwell T. Hansen
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Abstract

We present a numerical investigation of the relativistic-field-theoretic (RFT) formalism, used to predict the discrete energy spectrum of three pions in a finite volume. Applying the previously derived generalization, we extract results for all non-maximal isospin values ($I_{\pi\pi\pi} = 2,1,$ and $0$), for different total momenta $\boldsymbol{P}$, and for various irreducible representations of the finite-volume symmetry group. We restrict attention to the unphysical scenario in which the three-particle interactions are set to zero. This set-up thus serves as a baseline for future lattice QCD calculations that will aim to extract such three-body interactions.

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Athari Alotaibi, Maxwell T. Hansen. 2024-12-06. Implementing the RFT finite-volume formalism for three pions across all non-maximal isospins. https://arxiv.org/abs/2412.05060

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