Resonances in QCD

Abstract

We report on the EMMI Rapid Reaction Task Force meeting 'Resonances in QCD', which took place at GSI October 12-14, 2015. A group of 26 people met to discuss the physics of resonances in QCD. The aim of the meeting was defined by the following three key questions: What is needed to understand the physics of resonances in QCD? Where does QCD lead us to expect resonances with exotic quantum numbers? What experimental efforts are required to arrive at a coherent picture? For light mesons and baryons only those with $up$, $down$ and $strange$ quark content were considered. For heavy-light and heavy-heavy meson systems, those with $charm$ quarks were the focus. This document summarizes the discussions by the participants, which in turn led to the coherent conclusions we present here.

20 pages, 1 figure, report on the EMMI Rapid Reaction Task Force meeting '{\it Resonances in QCD}', which took place at GSI October 12-14, 2015

References in corpus (18)

• Big-Bang Nucleosynthesis
• Heavy quarkonium: progress, puzzles, and opportunities
• Observation of $J/\psi p$ resonances consistent with pentaquark states in ${\Lambda }_b^0\to J/\psi K^{-}p$ decays
• Toward the excited meson spectrum of dynamical QCD
• $D_s$ mesons with $DK$ and $D^{\ast }K$ scattering near threshold
• Resonances in coupled πK,ηK scattering from quantum chromodynamics
• Radiative and isospin-violating decays of Ds mesons in the hadrogenesis conjecture
• Quarkonium Hybrids with Nonrelativistic Effective Field Theories
• Strong and radiative decays of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$
• Resonance Production and $\pi \pi$ S-wave in ${\pi }^{-}+p\to {\pi }^{-}{\pi }^{-}{\pi }^{+}+p_{recoil}$ at 190 GeV/c
• Mass spectra and Regge trajectories of light mesons in the Bethe-Salpeter approach
• Thermodynamic instability of topological black holes with nonlinear source
• The polarization observables T, P, and H and their impact on $\gamma p\to p{\pi }^0$ multipoles
• Large-N_c operator analysis of 2-body meson-baryon counterterms in the chiral Lagrangian
• Spectral representation for u- and t-channel exchange processes in a partial-wave decomposition
• Constraints from precision measurements on the hadron-molecule interpretation of X,Y,Z resonances
• Meson Spectroscopy at COMPASS
• Meson Spectroscopy at COMPASS

Cited by in corpus (18)

• Multiquark Resonances
• PANDA Phase One
• On chiral extrapolations of charmed meson masses and coupled-channel reaction dynamics
• Decay properties of singly charmed baryons
• $\Delta$(1232) Dalitz decay in proton-proton collisions at T=1.25 GeV measured with HADES
• $D{\bar{D}}^{\ast }$ scattering and ${\chi }_{c1}(3872)$ in nuclear matter
• On chiral excitations with exotic quantum numbers
• Coupled-channel dynamics with chiral long-range forces in the open-charm sector of QCD
• On a first order transition in QCD with up, down and strange quarks
• Study on the reaction of $\gamma p\to f_1(1285)p$ in Regge-effective Lagrangian approach
• Constraints imposed by the partial wave amplitudes on the decays of $J=1,2$ mesons
• Double-strangeness exchange reactions in a hybrid Regge-plus-resonance approach
• On coupled-channel dynamics in the presence of anomalous thresholds
• The PANDA Experiment at FAIR - Subatomic Physics with Antiprotons
• Constraints from a large-N_c analysis on meson-baryon interactions at chiral order Q^3
• Influence of modified light-flavor hadron spectra on particle yields in the statistical hadronization model
• Amplitude analysis of the ${\Lambda }_b^0\to p{K}^{-}\gamma$ decay
• On chiral extrapolations of coupled-channel reaction dynamics for charmed mesons