Three-hadron dynamics from lattice QCD

Fuente: arXiv
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Main Author: Romero-López, Fernando
Format: Preprint
Published: 2025
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author Romero-López, Fernando
author_facet Romero-López, Fernando
contents Three-hadron spectroscopy is a key frontier in our understanding of the hadron spectrum. In recent years, significant formal and numerical advances have paved the way for studying three-hadron processes directly from lattice QCD, with outstanding applications including the Roper resonance and the doubly charmed tetraquark. This requires theoretical frameworks that relate finite-volume energies to infinite-volume three-particle scattering amplitudes. In this contribution, I discuss recent progress in formulating such frameworks for generic three-hadron systems, and present numerical results for three-meson systems at maximal isospin with physical quark masses, as well as our recent investigation of the three-body dynamics of the doubly charmed tetraquark, $T_{\rm cc}$.
format Preprint
id arxiv_https___arxiv_org_abs_2504_00586
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Three-hadron dynamics from lattice QCD
Romero-López, Fernando
High Energy Physics - Lattice
High Energy Physics - Phenomenology
Nuclear Theory
Three-hadron spectroscopy is a key frontier in our understanding of the hadron spectrum. In recent years, significant formal and numerical advances have paved the way for studying three-hadron processes directly from lattice QCD, with outstanding applications including the Roper resonance and the doubly charmed tetraquark. This requires theoretical frameworks that relate finite-volume energies to infinite-volume three-particle scattering amplitudes. In this contribution, I discuss recent progress in formulating such frameworks for generic three-hadron systems, and present numerical results for three-meson systems at maximal isospin with physical quark masses, as well as our recent investigation of the three-body dynamics of the doubly charmed tetraquark, $T_{\rm cc}$.
title Three-hadron dynamics from lattice QCD
topic High Energy Physics - Lattice
High Energy Physics - Phenomenology
Nuclear Theory
url https://arxiv.org/abs/2504.00586