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The mission |
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Create highest baryon densities in nucleus-nucleus collisions. Explore the properties of super-dense nuclear matter. Search for in-medium modification of hadrons. Search for the transition from dense hadronic matter to quark-gluon matter, and for the critical endpoint in the phase diagram of strongly interacting matter. |
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The physics |
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Fundamental aspects of Quantum-Chromo-Dynamics and astrophysics: The equation-of-state of strongly interacting matter at high baryon densities, the restoration of chiral symmetry, the origin of hadron masses, the confinement of quarks in hadrons, the structure of neutron stars, the dynamics of core-collapse supernovae. |
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The challenge |
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Measure rare and penetrating probes such as dilepton pairs from light vector mesons and charmonium, open charm, multistrange hyperons, together with collective hadron flow and fluctuations in heavy-ion collisions at rates of up to 10 Million reactions per second. |
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Tracking and vertex reconstruction with Silicon pixel and strip detectors in a magnetic field, electron identification with Ring Imaging Cherenkov detectors and Transition Radiation Detectors, or, alternatively, muon identification with a muon detection system, time-of flight measurement with diamond strip detectors and Resistive Plate Chamber arrays. High speed signal processing and data acquisition. |
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 Collision of two Uranium nuclei at a beam energy of 23 AGeV simulated with a microscopic transport code (UrQMD, Univ. Frankfurt)



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