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• W2034403647 endingPage "71" @default.
• W2034403647 startingPage "1" @default.
• W2034403647 abstract "We study scenarios for chiral symmetry restoration and deconfinement at finite temperature and/or density, based on assuming universal scaling relations fort some hadron masses. We explore and discuss consequences of this scaling assumption in nuclear structure and show that most experiments support the scaling. The relevance of soft and hard scales as pertaining to chiral symmetry restoration and deconfinement is emphasized, and scaling relations for nonstrange and strange Goldstone bosons are presented. Theoretical support for the scaling relations is found from the analysis of effective Lagrangians in hot and dense matter, as well as finite-temperature and finite-density QCD sum rules. Both approaches suggest the validity of approximate scaling relations and identify sources of violation of the latter. Finite-temperature hadron masses can be compared to the results of QCD lattice gauge calculations. We show that large screening masses above Tc merging into chiral multiplets are consistent with thermal, rather then dynamically generated, quark masses on the lattice. The results are consistent with vanishing dynamically generated masses above Tc, where Tc is interpreted as the chiral symmetry restoration temperature. We review the “dynamical confinement” scenario of hot quarks and show that the hadronic wavefunctions obtained above Tc are consistent with those obtained from recent measurements of the latter in lattice QCD. This suggests that there are strong quark/antiquark correlations in the vector meson channels. We conclude that for finite-temperature QCD, chiral symmetry above Tc is realized in terms of essentially massless multiples of chiral partners, and that chiral symmetry restoration is the only transition." @default.
• W2034403647 created "2016-06-24" @default.
• W2034403647 creator A5031224365 @default.
• W2034403647 creator A5063016075 @default.
• W2034403647 date "1993-11-01" @default.
• W2034403647 modified "2023-09-27" @default.
• W2034403647 title "Matter under extreme conditions" @default.
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