Three-body unitarity versus finite-volume π + π + π + spectrum from lattice QCD

Three-body unitarity versus finite-volume π + π + π + spectrum from lattice QCD

Strong three-body interactions above threshold govern the dynamics of many exotics and conventional excited mesons and baryons. Three-body finite-volume energies calculated from lattice QCD promise an ab initio understanding of these systems. We calculate the three-π+ spectrum unraveling the three-b...

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Veröffentlicht in:Physical review. D 2020-03, Vol.101 (5), p.1, Article 054510
Hauptverfasser: Mai, M., Döring, M., Culver, C., Alexandru, A.
Format: Artikel
Sprache:eng
Schlagworte:
Chiral perturbation theory
Chiral symmetry
Few-body systems
Lattice QCD
Mathematical analysis
Mesons
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Quantum chromodynamics
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container_title Physical review. D
container_volume 101
creator Mai, M.
Döring, M.
Culver, C.
Alexandru, A.
description Strong three-body interactions above threshold govern the dynamics of many exotics and conventional excited mesons and baryons. Three-body finite-volume energies calculated from lattice QCD promise an ab initio understanding of these systems. We calculate the three-π+ spectrum unraveling the three-body dynamics that is tightly intertwined with the S-matrix principle of three-body unitarity and compare it with recent lattice QCD results. For this purpose, we develop a formalism for three-body systems in moving frames and apply it numerically.
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subjects Chiral perturbation theory
Chiral symmetry
Few-body systems
Lattice QCD
Mathematical analysis
Mesons
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Quantum chromodynamics
title Three-body unitarity versus finite-volume π + π + π + spectrum from lattice QCD
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