Bonn 2010 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 41: Schwerionenkollisionen und QCD Phasen IV

HK 41.1: Gruppenbericht

Donnerstag, 18. März 2010, 14:00–14:30, HG I

Exploring QCD matter at highest baryonic densities with CBM — •Tetyana Galatyuk — Goethe-Universität, Frankfurt, Germany

The Compressed Baryonic Matter (CBM) experiment has the potential to discover the most prominent landmarks of the QCD phase diagram expected to exist at high net baryon densities. The measurement of rare diagnostic probes offers the possibility to find signatures of exotic phases, and to discover the conjectured first order deconfinement phase transition and its critical endpoint. Effective models, guided by LQCD, expect that the spontaneously broken chiral symmetry should be almost recovered in the region of the phase diagram to be explored by CBM. Phase transitions occur above a critical energy density and can only be observed if the matter extends over a certain volume. Therefore, a key feature of the CBM experimental program is the comprehensive set of observables which will be measured in proton-proton, proton-nucleus, and nucleus-nucleus collisions over the full FAIR energy range. Particular emphasis is put on rare probes which are not accessible by other experiments in this energy range.

The CBM physics requires the development of fast and radiation hard detectors, free-streaming read-out electronics, real-time event reconstruction techniques, and a high-speed data acquisition system. The detector concept is sufficiently flexible to be optimized for the most promising observables. Progress in spectrometer optimization by realistic feasibility studies, and in the development of its detector systems will be discussed.

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