Resonances in coupled πK,ηK scattering from quantum chromodynamics

Abstract

Using first-principles calculation within Quantum Chromodynamics, we are able to determine a pattern of strangeness=1 resonances which appear as complex singularities within coupled $\pi K$, $\eta K$ scattering amplitudes. We make use of numerical computation in the lattice discretized approach to the quantum field theory with light quark masses corresponding to $m_{\pi }\sim 400\text{MeV}$ and at a single lattice spacing. The energy dependence of scattering amplitudes is extracted through their relationship to the discrete spectrum in a finite-volume, which we map out in unprecedented detail.

V3: version accepted for publication in PRL. A code bug which led to incorrect normalization of certain correlation functions is corrected - qualitative features of the results remain unchanged

References in corpus (6)

• A novel quark-field creation operator construction for hadronic physics in lattice QCD
• Toward the excited meson spectrum of dynamical QCD
• First results from 2+1 dynamical quark flavors on an anisotropic lattice: light-hadron spectroscopy and setting the strange-quark mass
• S and D-wave phase shifts in isospin-2 pi pi scattering from lattice QCD
• The K^*_0(800) scalar resonance from Roy-Steiner representations of pi K scattering
• Lattice QCD study on $K^{\ast }(892)$ meson decay width

Cited by in corpus (23)

• Baryons as relativistic three-quark bound states
• Isoscalar $\pi \pi$ scattering and the $\sigma$ meson resonance from QCD
• Three particle quantization condition in a finite volume: 2. general formalism and the analysis of data
• Resonances in coupled $\pi K,\eta K$ scattering from lattice QCD
• Coupled-Channel $D\pi$, $D\eta$ and $D_s\bar{K}$ Scattering from Lattice QCD
• Multichannel one-to-two transition amplitudes in a finite volume
• Pion-nucleon scattering in the Roper channel from lattice QCD
• Study of the $Z_c^{+}$ channel using lattice QCD
• Tetraquark operators in lattice QCD and exotic flavour states in the charm sector
• Remarks on pole trajectories for resonances
• Chiral study of the $a_0(980)$ resonance and $\pi \eta$ scattering phase shifts in light of a recent lattice simulation
• Long-range electroweak amplitudes of single hadrons from Euclidean finite-volume correlation functions
• Consistency checks for two-body finite-volume matrix elements: I. Conserved currents and bound states
• Nuclear Reactions from Lattice QCD
• Hadron spectroscopy and interactions from lattice QCD
• Excited $J^{--}$ meson resonances at the SU(3) flavor point from lattice QCD
• Exclusive tensor meson photoproduction
• K-pi interaction in finite volume and the K* resonance
• Flavour Anomalies in $b\to s{\ell }^{+}{\ell }^{-}$ Processes - a round table Discussion
• Study of conventional and non-conventional scalar and vector mesons
• Three-particle quantization condition: an update
• Dynamical generation of hadronic resonances in effective models with derivative interactions
• The Joint Physics Analysis Center: Recent results