Determination of Delta resonance parameters from lattice QCD

Abstract

A method suitable for extracting resonance parameters of unstable baryons in lattice QCD is examined. The method is applied to the strong decay of the Delta to a pion-nucleon state, extracting the pion-nucleon - Delta coupling constant and Delta decay width.

References in corpus (14)

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• The QCD spectrum with three quark flavors
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• Chiral Effective-Field Theory in the Delta(1232) Region: Pion Electroproduction on the Nucleon
• Hybrid meson decay from the lattice
• NN,NΔCouplings and the Quark Model
• Hadronic decay of a vector meson from the lattice
• Meson-Baryon Scattering Lengths from Mixed-Action Lattice QCD
• Nucleon to Delta transition form factors with $N_F=2+1$ domain wall fermions
• Hadron Scattering in an Asymmetric Box
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Cited by in corpus (18)

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• Towards a theory of hadron resonances
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• $\rho$ and $K^{\ast }$ resonances on the lattice at nearly physical quark masses and $N_f=2$
• The elastic $I=3/2$ $p$-wave nucleon-pion scattering amplitude and the $\Delta (1232)$ resonance from $N_{\mathrm{f}}=2+1$ lattice QCD
• Photocouplings at the Pole from Pion Photoproduction
• A framework for the calculation of the $\Delta N{\gamma }^{\ast }$ transition form factors on the lattice
• K pi scattering and the K* decay width from lattice QCD
• Multi-particle systems on the lattice and chiral extrapolations: a brief review
• Jülich-Bonn-Washington Model for Pion Electroproduction Multipoles
• P-wave nucleon-pion scattering amplitude in the $\Delta (1232)$ channel from lattice QCD
• Study of decuplet baryon resonances from lattice QCD
• Particle-dimer approach for the Roper resonance in a finite volume
• Baryon transition form factors at the pole
• Theoretical tools for neutrino scattering: interplay between lattice QCD, EFTs, nuclear physics, phenomenology, and neutrino event generators
• Elastic Nucleon-Pion scattering amplitudes in the $\Delta$ channel at physical pion mass from Lattice QCD
• Decay properties of light $1^{-+}$ hybrids
• Hadronic decay of vector charmonium from the lattice