I = 1 / 2 S -wave and P -wave K π scattering and the κ and K resonances from lattice QCD

We present a lattice-QCD determination of the elastic isospin-1/2 S -wave and P-wave Kπ scattering amplitudes as a function of the center-of-mass energy using Lüscher's method. We perform global fits of K-matrix parametrizations to the finite-volume energy spectra for all irreducible representa...

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Bibliographic Details
Published in:Physical review. D 2020-12, Vol.102 (11), Article 114520
Main Authors: Rendon, Gumaro, Leskovec, Luka, Meinel, Stefan, Negele, John, Paul, Srijit, Petschlies, Marcus, Pochinsky, Andrew, Silvi, Giorgio, Syritsyn, Sergey
Format: Article
Language:English
Subjects:
Amplitudes
Conformal mapping
Couplings
Elastic scattering
Energy spectra
Fermions
hadron-hadron interactions
lattice QCD
P waves
Parameterization
particle interactions
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Pions
Quantum chromodynamics
Representations
Resonance scattering
S waves
scattering amplitudes
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