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Hadrons and Nuclei

EPJ A Highlight - Confirming the validity of the Silver-Blaze property for QCD at finite chemical potential

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Sketch of the QCD phase diagram in the temperature and baryon chemical potential plane.

The properties of the theory of strong interactions, QCD, at finite chemical potential are of great interest for at least two reasons: (i) model studies suggest a potentially rich landscape of different phases with highly interesting analogies to those found in solid state physics; (ii) the resulting thermodynamic properties have far reaching consequences for the physics of neutron stars and neutron star mergers.

Investigating the properties of light scalar and pseudo-scalar quark-antiquark bound states at finite chemical potential by solving coupled sets of Dyson-Schwinger equations, the meson masses, wave functions, and decay constants are computed, as well as changes in the quark dressing functions for chemical potentials below the first-order chiral phase transition while tracing charge-conjugation parity breaking.

Eventually, we confirm the validity of the Silver-Blaze property: in observables all dependencies of colored quantities (propagators, wave-functions, etc.) on chemical potential cancel out and we observe constant masses and decay constants up to and into the coexistence region of the first-order chiral phase transition.

Editors-in-Chief
David Blaschke, Thomas Duguet and Maria Jose Garcia Borge
It is a great satisfaction to see the fruit of months of research and discussions published in your journal. Besides, I express my gratitude for the quick and timely carrying out of the production process, the correct implementation of my amendments, the professionalism and the attention I have received.

G. Stellin, Institut fur Strahlen- und Kernphysik, Rheinische Friedrich-Wilhelms-Universitat Bonn, Germany

ISSN (Electronic Edition): 1434-601X

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