Speaker
Peter Lowdon
(Goethe University Frankfurt)
Description
Determining the type of excitations that can exist in a thermal medium is key to understanding how hadronic matter behaves at extreme temperatures. Here I report on a recent approach which utilises the non-perturbative constraints imposed by causality. By analysing finite-temperature lattice QCD data for spatial correlators of pseudo-scalar mesons comprised of light quarks, we find evidence for the existence of distinct low-energy stable particle-like excitations. These excitations are shown to be present around the chiral crossover region, which suggest that at high temperatures light pseudo-scalar mesons in QCD still have a bound-state-like structure.
| Category | Theory |
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Author
Peter Lowdon
(Goethe University Frankfurt)
Co-authors
Dibyendu Bala
(Bielefeld University)
Olaf Kaczmarek
(Bielefeld University)
Owe Philipsen
(Goethe University Frankfurt)
Tristan Ueding
(Bielefeld University)
