Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-03-19
Physics
High Energy Physics
High Energy Physics - Phenomenology
Invited talk at the 2002 International Workshop on Strong Coupling Gauge Theories and Effective Field Theories (SCGT 02), Nago
Scientific paper
Internal and Lorentz symmetries are necessarily linked when considering non scalar condensates. Here I review vectorial type condensation due to a non zero chemical potential associated to some of the global conserved charges of the theory. The phase structure is very rich since three distinct phases exists depending on the value assumed by one of the zero chemical potential vector self interaction terms. In a certain limit of the couplings and for large chemical potential the theory is not stable. This limit corresponds to a gauge type limit often employed to economically describe the ordinary vector mesons self interactions in QCD. Our analysis is relevant since it leads to a number of physical applications not limited to strongly interacting theories at non zero chemical potential.
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