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Published byArnold Lee Modified over 8 years ago
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Structure of Matter
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Nucleons and quarks 1950’s: nucleons are not elementary 1960++: quark model and QCD (Nobel prize 2004) 2007++: Higgs particle discovered? (at LHC) have we understood the strong interaction?
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How is the mass created? What is the role of quarks and gluons? Only few % of the hadronic mass can be explained by the Higgs Mechanism! No!!! There might be Experimental surprises! (flux tube animation by D. Leinweber et al.) Do other than 2, 3 quark objects exist?
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Some Places to Explore Non-Pertubative QCD charmonium spectroscopy gluonic excitations (hybrids, glueballs) -ray spectroscopy of hypernuclei
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Charmonium Spectroscopy narrow states! many states and transitions not understood!! positronium of QCD! transition region between two limits: massless and heavy-quark!
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hybrids: “ordinary” quark states containing excited glue Gluonic Excitations glueballs: gluonic states without valence quark contribution
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Stranges s Neutron Number Extension of the Nuclear Chart We do not yet understand the interaction of normal matter with hyperon matter!
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The PANDA experiment site within FAIR
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beam interaction point solenoid dipole EM and hadron calorimeters target generator RICH drift or wire chambers TOF stop hypernuclei target and detectors muon counters 2m
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