Quark Gluon Plasma Bags as Reggeons
K. A. Bugaev

TL;DR
This paper presents an exactly solvable model analyzing how medium-dependent widths of quark-gluon plasma (QGP) bags affect their equation of state, explaining resonance deficits and Regge trajectory behaviors in different temperature regimes.
Contribution
It introduces a model linking QGP bag widths to Regge trajectories, estimating minimal widths from lattice QCD data, and clarifying their observable properties across temperature ranges.
Findings
Large widths explain resonance deficits.
Heavy QGP bags are not directly observable as metastable states.
Regge trajectories of QGP bags follow different asymptotics depending on temperature.
Abstract
Within an exactly solvable model I discuss the influence of the medium dependent finite width of quark gluon plasma (QGP) bags on their equation of state. It is shown that the large width of the QGP bags not only explains the observed deficit in the number of hadronic resonances, but also clarifies the reason why the heavy QGP bags cannot be directly observed as metastable states in a hadronic phase. I show how the model allows one to estimate the minimal value of the width of QGP bags being heavier than 2.5 GeV from a variety of the lattice QCD data and to get the minimal resonance width at zero temperature of about 600 MeV. The Regge trajectories of large and heavy QGP bags are established both in a vacuum and in a strongly interacting medium. It is shown that at high temperatures the average mass and width of the QGP bags behave in accordance with the upper bound of the Regge…
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Taxonomy
TopicsHigh-Energy Particle Collisions Research
