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DOE OSTI · 21516875

Quark Spectral Function above T{sub c}

Sixue, Qin·Lei, Chang·Yuxin, Liu·Roberts, Craig D
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Abstract

The maximum entropy method is used to calculate the dressed-quark spectral density from the self-consistent solution of the rainbow-truncated gap equation of QCD at temperatures above T{sub c}, the critical temperature for chiral symmetry restoration. We find that, besides the normal and plasmino modes, the spectral function exhibits an essentially nonperturbative zero mode at the temperatures above but near T{sub c}. In the vicinity of T{sub c}, this long-wavelength mode contains the bulk of the spectral strength. So long as this mode persists, the system may reasonably be described as a strongly-coupled state of matter.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSBOSONSCHIRAL SYMMETRYCOMPUTERIZED SIMULATIONCRITICAL TEMPERATUREENTROPYFERMIONSFIELD THEORIESFUNCTIONSGLUONSMASSMATHEMATICAL MODELSMATHEMATICAL SOLUTIONSPARTICLE MODELSPHYSICAL PROPERTIESQUANTUM CHROMODYNAMICSQUANTUM FIELD THEORYQUARKSSIMULATIONSPECTRAL DENSITYSPECTRAL FUNCTIONSSTRONG-COUPLING MODELSYMMETRYTHERMODYNAMIC PROPERTIESTRANSITION TEMPERATUREWAVELENGTHS

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Sixue, Qin, Lei, Chang, Yuxin, Liu, Roberts, Craig D. 2011-05-24. Quark Spectral Function above T{sub c}. https://doi.org/10.1063/1.3587611

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