π-QCD; Proposal for Experiments at the GSI Pion Beam Facility

@misc{yassine2026πqcd,
  title = {{$π$-QCD; Proposal for Experiments at the GSI Pion Beam Facility}},
  author = {R Abou Yassine and J Adamczewski-Musch and G Appagere and M Becker and A Blanco and C Blume and M Bohman and Y Bondar and L Chlad and I Ciepał and S Deb and M.D. Doncel Monasterio and M Duerr and W Esmail and L Fabbietti and M Firlej and T Fiutowski and A.M Foda and J Förtsch and P Fonte and J Friese and I Fröhlich and T Galatyuk and R Gernhäuser and M Grunwald and D Grzonka and M Gumberidze and S Harabasz and T Heinz and C Höhne and F Hojeij and R Holzmann and M Idzik and B Kämpfer and K.-H Kampert and B Kardan and V Kedych and S Kim and V Kladov and A Kodym and M Kohls and J Kolas and A Koperwas-Władyszewska and G Korcyl and G Kornakov and W Krueger and A Kugler and R Lalik and S Lebedev and T Leontiou and S Linev and F Linz and L Lopes and M Lorenz and A Malige and P Marciniewski and J Markert and T Matulewicz and S Mehat and J.G Messchendorp},
  howpublished = {HAL},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.37548},
  eprint = {2609.37548},
  archivePrefix = {arXiv},
  url = {https://hal.science/hal-05786318v1},
  note = {CC BY 4.0},
}

TY  - UNPB
TI  - π-QCD; Proposal for Experiments at the GSI Pion Beam Facility
AU  - R Abou Yassine
AU  - J Adamczewski-Musch
AU  - G Appagere
AU  - M Becker
AU  - A Blanco
AU  - C Blume
AU  - M Bohman
AU  - Y Bondar
AU  - L Chlad
AU  - I Ciepał
AU  - S Deb
AU  - M.D. Doncel Monasterio
AU  - M Duerr
AU  - W Esmail
AU  - L Fabbietti
AU  - M Firlej
AU  - T Fiutowski
AU  - A.M Foda
AU  - J Förtsch
AU  - P Fonte
AU  - J Friese
AU  - I Fröhlich
AU  - T Galatyuk
AU  - R Gernhäuser
AU  - M Grunwald
AU  - D Grzonka
AU  - M Gumberidze
AU  - S Harabasz
AU  - T Heinz
AU  - C Höhne
AU  - F Hojeij
AU  - R Holzmann
AU  - M Idzik
AU  - B Kämpfer
AU  - K.-H Kampert
AU  - B Kardan
AU  - V Kedych
AU  - S Kim
AU  - V Kladov
AU  - A Kodym
AU  - M Kohls
AU  - J Kolas
AU  - A Koperwas-Władyszewska
AU  - G Korcyl
AU  - G Kornakov
AU  - W Krueger
AU  - A Kugler
AU  - R Lalik
AU  - S Lebedev
AU  - T Leontiou
AU  - S Linev
AU  - F Linz
AU  - L Lopes
AU  - M Lorenz
AU  - A Malige
AU  - P Marciniewski
AU  - J Markert
AU  - T Matulewicz
AU  - S Mehat
AU  - J.G Messchendorp
PY  - 2026
DA  - 2026/09/29
PB  - HAL
DO  - 10.48550/arxiv.2609.37548
UR  - https://hal.science/hal-05786318v1
AB  - We propose to investigate the dynamics of hadronic matter in the strong QCD regime using the pion-beam facility at GSI in conjunction with HADES. This program will study hadron physics through elementary pion-nucleon interactions up to √s≈2.35 GeV, bridging cold matter research with detailed analyses of exclusive reactions. Our goals include exploring baryon resonance formation and their electromagnetic structures. This will complement photo-production experiments (e.g., ELSA) and enhance our understanding of emissivity in dense, hot hadronic matter. Key topics include examining baryon couplings to mesons and virtual photons, analyzing hyperon weak decays in exclusive reactions, and using Partial Wave Analyses with differential cross sections and polarization observables to achieve unprecedented precision in baryon-meson coupling data (ρN, ωN). Furthermore, e^+e^− production measurements off nucleons will provide insight into the electromagnetic transition form factors of baryons in the time-like region, revealing the role of vector mesons (ρ, ω). Reactions on nuclear targets allow for detailed studies of hadron properties, including vector-meson line shapes and strengths in cold nuclear matter. These measurements provide a critical reference for the interpretation of results from the hot and dense environment created in A+A collisions. This research also has broader implications. It will contribute to the modeling of neutrino-nucleus interactions, facilitate unprecedented investigations into hypernuclei formation, and enhance our understanding of strong interaction dynamics across different energy regimes.
ER  -