Towards a theory of baryon resonances

Abstract

In this talk, I discuss methods that allow for a systematic and model-independent calculation of the hadron spectrum. These are lattice QCD and/or its corresponding Effective Field Theories. Assorted results are shown and I take the opportunity to discuss some misconceptions often found in the literature.

Opening talk (theory), The 12th International Workshop on the Physics of Excited Nucleons (NSTAR 2019), Bonn, Germany (12 pages, 13 figures)

References in corpus (24)

• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks
• Pion Interactions in the X(3872)
• The complex-mass scheme for perturbative calculations with unstable particles
• Is the X(3872) Production Cross Section at Tevatron Compatible with a Hadron Molecule Interpretation?
• Isoscalar $\pi \pi$ scattering and the $\sigma$ meson resonance from QCD
• Lattice QCD Evidence that the Lambda(1405) Resonance is an Antikaon-Nucleon Molecule
• Scalar mesons in a finite volume
• Coupled-Channel $D\pi$, $D\eta$ and $D_s\bar{K}$ Scattering from Lattice QCD
• Line Shapes of the X(3872)
• Chiral dynamics of the S11(1535) and S11(1650) resonances revisited
• Isospin breaking decays as a diagnosis of the hadronic molecular structure of the $P_c(4457)$
• Amplitude analysis of $B^{-}\to D^{+}{\pi }^{-}{\pi }^{-}$ decays
• Subleading contributions to the width of the D_{s0}*(2317)
• Towards a new paradigm for heavy-light meson spectroscopy
• Extraction of isoscalar $\pi \pi$ phase-shifts from lattice QCD
• On the scattering of D and D* mesons off the X(3872)
• Chiral corrections to the Roper mass
• Implications of chiral symmetry on $S$-wave pionic resonances and the scalar charmed mesons
• The width of the $\Delta$-resonance at two loop order in baryon chiral perturbation theory
• Electromagnetic transition form factors of the Roper resonance in baryon chiral perturbation theory
• A lattice QCD study of pion-nucleon scattering in the Roper channel

Cited by in corpus (1)

• 50 Years of Quantum Chromodynamics