Milestone **3** (Lattice):

Extension of finite-volume three-body formalism to scattering of particles with spin

Quartile: Q2, Status:**Completed**, Responsible: Stephen Sharpe

Papers: JHEP**07** (2023), 226

News: Extension of finite-volume three-body formalism to scattering of particles with spin

Extension of finite-volume three-body formalism to scattering of particles with spin

Quartile: Q2, Status:

Papers: JHEP

News: Extension of finite-volume three-body formalism to scattering of particles with spin

Milestone **1** (AmpAn):

Mass-independent partial-wave analysis. Determine the existence of ambiguities in mass independent PWA of two-pseudoscalar meson photoproduction

Quartile: Q3, Status:**Completed**, Responsible: Adam Szczepaniak

Papers: Phys. Rev. D**108** (2023), 076001

News: No ambiguities in the partial wave analysis for hybrids

Mass-independent partial-wave analysis. Determine the existence of ambiguities in mass independent PWA of two-pseudoscalar meson photoproduction

Quartile: Q3, Status:

Papers: Phys. Rev. D

News: No ambiguities in the partial wave analysis for hybrids

Milestone **2** (AmpAn):

Formulate and apply mass-dependent amplitude analysis to describe $\Delta^{++}$ production and explain the momentum transfer behavior of the beam spin asymmetry

Quartile: Q3, Status:**Partially completed**, Responsible: Adam Szczepaniak

Papers: arXiv:2407.19577

News: Reconciling gauge invariance and Reggeization of pion exchange

Formulate and apply mass-dependent amplitude analysis to describe $\Delta^{++}$ production and explain the momentum transfer behavior of the beam spin asymmetry

Quartile: Q3, Status:

Papers: arXiv:2407.19577

News: Reconciling gauge invariance and Reggeization of pion exchange

Milestone **4** (Lattice):

First dispersive extractions of the $\sigma/f_0(500)$ from lattice QCD at various light-quark masses

Quartile: Q3, Status:**Completed**, Responsible: Arkaitz Rodas Bilbao

Papers: Phys. Rev. D**109** (2024), 034513; Phys. Rev. D **108** (2023), 034513

News: Dispersion relations and Lattice QCD pinpoint the $\sigma$ meson

First dispersive extractions of the $\sigma/f_0(500)$ from lattice QCD at various light-quark masses

Quartile: Q3, Status:

Papers: Phys. Rev. D

News: Dispersion relations and Lattice QCD pinpoint the $\sigma$ meson

Milestone **6** (Pheno):

Calculation of decays of $T_{cc}^+(3875)$ in XEFT at LO, and determining implications of the systematic treatment of the nearby coupled 2-body channel for lighter exotic hadrons

Quartile: Q3, Status:**Partially completed**, Responsible: Eric Braaten

Papers: Phys. Rev. D**109** (2024), 094051

Calculation of decays of $T_{cc}^+(3875)$ in XEFT at LO, and determining implications of the systematic treatment of the nearby coupled 2-body channel for lighter exotic hadrons

Quartile: Q3, Status:

Papers: Phys. Rev. D

Milestone **8** (Pheno):

Take advantage of the GlueX measurements on photoproduction of vector mesons to perform quantitative analysis of their implications for fundamental properties such as the proton mass radius

Quartile: Q4, Status:**Partially completed**, Responsible: Jinfeng Liao

Papers: Phys. Rev. D**108** (2023), 054018

News: Revisiting $J/\psi$ photoproduction at threshold

Take advantage of the GlueX measurements on photoproduction of vector mesons to perform quantitative analysis of their implications for fundamental properties such as the proton mass radius

Quartile: Q4, Status:

Papers: Phys. Rev. D

News: Revisiting $J/\psi$ photoproduction at threshold

Milestone **13** (Lattice):

Extension of finite-volume three-body formalism to more general cases of multiple coupled systems

Quartile: Q2, Status:**Completed**, Responsible: Stephen Sharpe

Papers: JHEP**07** (2024), 083

News: Three particles with coupled channels

Extension of finite-volume three-body formalism to more general cases of multiple coupled systems

Quartile: Q2, Status:

Papers: JHEP

News: Three particles with coupled channels

Milestone **17** (AmpAn):

Development of formalism to analytically continue three-body integral equations into the complex plane in order to search for resonance pole singularities

Quartile: Q4, Status:**Completed**, Responsible: Michael DÃ¶ring

Papers: Phys. Rev. D**108** (2023), 034016

Development of formalism to analytically continue three-body integral equations into the complex plane in order to search for resonance pole singularities

Quartile: Q4, Status:

Papers: Phys. Rev. D

Milestone **23** (Pheno):

Identify and compute distinctive decay modes of the exotics to quasi-stable hadronic final states within the dynamical model previously developed

Quartile: Q4, Status:**Completed**, Responsible: Eric Swanson

Papers: Phys. Rev. D**109** (2024), 094015

News: A Constituent Model of Light Hybrid Meson Decays

Identify and compute distinctive decay modes of the exotics to quasi-stable hadronic final states within the dynamical model previously developed

Quartile: Q4, Status:

Papers: Phys. Rev. D

News: A Constituent Model of Light Hybrid Meson Decays