Abstract
Correlation functions provide information on the properties of mesons in vacuum and of hot nuclear matter. In this work, we present a new method to derive a well-defined spectral representation for correlation functions. Combining this method with the quark gap equation and the inhomogeneous Bethe–Salpeter equation in the rainbow-ladder approximation, we calculate in-vacuum masses of light mesons and the electrical conductivity of the quark–gluon plasma. The analysis can be extended to other observables of strong-interaction systems.
Highlights
Hadrons contribute to most of the visible matter in our real world and are undoubtedly an embodiment of dynamical chiral symmetry breaking (DCSB) and confinement
Current and future hadron physics facilities are focusing on hadron spectroscopy in order to shed light on the mysteries of quantum chromodynamics (QCD)
It is believed that the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC) are able to create the quark–gluon plasma (QGP) state of the early Universe through a “mini-big bang”
Summary
Hadrons contribute to most of the visible matter in our real world and are undoubtedly an embodiment of dynamical chiral symmetry breaking (DCSB) and confinement. It is believed that the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC) are able to create the quark–gluon plasma (QGP) state of the early Universe through a “mini-big bang” This provides us with the possibility to study quark–gluon dynamics directly and to enrich our understanding of the QCD phase diagram. The analytical structure of the quark propagator strongly depends on the specified truncation scheme and interaction model This may lead to technical difficulties in the study of light-quark hadrons with masses above 1 GeV and meson boundstates composed of one heavy and one light valence-quark. We calculate the masses of the π - and ρ-meson in vacuum and the electrical conductivity of the QGP with a single DSE interaction kernel Both the result for the electrical conductivity and the approach itself are essentially new
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
