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Hierarchies of Matter

general features: constituents observed as free particles. Hierarchies of Matter. matter. crystal. atom. atomic nucleus. (macroscopic). 10 -9 m. nucleon. 10 -10 m. quarks. 10 -14 m. nucleon: constituents (quarks) not observed as free particles. • confinement

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Hierarchies of Matter

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  1. general features: constituents observed as free particles Hierarchies of Matter matter crystal atom atomic nucleus (macroscopic) 10-9 m nucleon 10-10 m quarks 10-14 m nucleon: constituents (quarks) notobserved as free particles • confinement • hadron masses 10-15 m < 10-18 m

  2. Outstanding Issues in Hadron Physics • How are hadrons (baryons and mesons) built from quarks and gluons? e.g., nucleon = complex many-body system of quarks and gluons • What determines the nucleon mass? • Can we quantitatively account for the confinement of quarks and gluons inside hadrons?

  3. Further possibilities: • Inverted Deeply Virtual Compton Scattering • CP-violation (D/-sector) • fundamental symmetries; p in traps Physics program at the HESR • J/ spectroscopy  confinement • glueballs (ggg) and hybrids (ccg) • hidden and open charm mesons in nuclei • hypernuclei

  4. QCD systems to be studied at HESR

  5. High Energy Storage Ring and Detector Concept L = 2·1032 cm-2s-1 ; p= 1.5 – 15 GeV/c

  6. • high resolution spectroscopy with p-beams in formation experiments: DE,DEbeam • high yields in pp of gluonic excitations (glueballs, hybrids) • event tagging by pairwise (particle, particle) production, e.g. pp  • large at low momentum transfer; important for in-medium "implantation" of hadrons: study of in-medium effects Why antiprotons? • high beam quality by stochastic and electron cooling  micro vertex trigger for D-meson physics

  7. International Competition CLEOc, BES, JLab (HALL D), JHF

  8. The HESR - Community Proposal Contributors Participating Institutions Proposal Supporters T. Barnes D. Bettoni R. Calabrese W. Cassing M. Düren S. Ganzhur O. Hartmann V. Hejny P. Kienle H. Koch W. Kühn U. Lynen V. Metag H. Orth S. Paul K. Peters J. Pochodzalla J. Ritman L. Schmitt C. Schwarz K. Seth W. Weise U. Wiedner Ruhr - University Bochum Rheinische Friedrich - Wilhelms - University Bonn INFN, National Laboratory Catania, Italy GSI Darmstadt Technical University Darmstadt Northwestern University, Evanston, USA University of Ferrara, Italy Johann Wolfgang Goethe University Frankfurt Justus - Liebig - University Giessen Ruprecht - Karls - University Heidelberg Forschungszentrun Jülich Jagiellonian University Krakow INFN, National Laboratory Legnaro, Italy Johannes Gutenberg University Mainz Westfälische Wilhelms - University Münster Ludwig - Maximilians - University Munich Technical University Munich University of Torino, Italy Uppsala University, Sweden Warsaw University, Poland G. Bali I. Bigi T. Bressani T. Ericson D. Hilscher J. Jastrzebski J. Kisiel W. Kluge M. Locher J.-M. Richard D.O. Riska G. Rosner T. Thomas N. Tornquist

  9. ... provide a broad and challenging research program (cc), (ccg), (ggg), mD, LLA, IDVCS, CP, CPT ... be an integral part of GSI's efforts to unravel all facets of the strong interaction and of hadronic matter (p, AA-collisions, exotic nuclei) Summary Antiprotons in the HESR will ... ... allow GSI to play a leading role in exploring long distance (non-perturbative) QCD

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