Finite-volume energy spectrum of the K − K − K − system

The dynamics of multikaon systems are of relevance for several areas of nuclear physics. However, even the simplest systems, two and three kaons, are hard to prepare and study experimentally. Here we show how to extract this information using first-principle lattice QCD results. We (i) extend the re...

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Bibliographic Details
Published in:Physical review. D 2020-12, Vol.102 (11), Article 114523
Main Authors: Alexandru, Andrei, Brett, Ruairí, Culver, Chris, Döring, Michael, Guo, Dehua, Lee, Frank X., Mai, Maxim
Format: Article
Language:English
Subjects:
Chiral perturbation theory
Energy spectra
Excitation spectra
Few-body systems
First principles
Kaons
Lattice QCD
Mathematical analysis
Mesons
Nuclear matter in neutron stars
Nuclear physics
NUCLEAR PHYSICS AND RADIATION PHYSICS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Quantum chromodynamics
Scattering theory
Strangeness
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Summary:The dynamics of multikaon systems are of relevance for several areas of nuclear physics. However, even the simplest systems, two and three kaons, are hard to prepare and study experimentally. Here we show how to extract this information using first-principle lattice QCD results. We (i) extend the relativistic three-body quantization condition to the strangeness sector, predicting for the first time the excited level finite-volume spectrum of three-kaon systems at maximal isospin and (ii) present a first lattice QCD calculation of the excited levels of this system in a finite box. We compare our predictions with the lattice results reported here and with previous ground state calculations and find very good agreement.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.102.114523