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Relevance of glueball bound states in the Yang-Mills plasma within a many-body T-matrix approach
26 juillet 2012,
- HE Louvain en Hainaut
,
- Article scientifique
Article scientifique
The strongly coupled phase of Yang-Mills plasma with gauge group SU(3) is studied in a Tmatrix
approach. The existence of lowest-lying glueballs, interpreted as bound states of two
transverse gluons (quasi-particles in a many-body setup), is analyzed in a non-perturbative scattering
formalism with the input of lattice-QCD static potentials. The relevance of the singlet and
the (colored) octet ...
Comments on Yang–Mills thermodynamics: The Hagedorn spectrum and the gluon gas pictures for a generic gauge algebra
20 octobre 2011,
- HE Louvain en Hainaut
,
- Article scientifique
Article scientifique
We discuss the dependence of pure Yang–Mills equation of state on the choice of gauge algebra. In the
confined phase, we generalize to an arbitrary simple gauge algebra Meyer’s proposal of modeling the
Yang–Mills matter by an ideal glueball gas in which the high-lying glueball spectrum is approximated by
a Hagedorn spectrum of closed-bosonic-string type. Such a formalism is undefined above the ...
Thermodynamics of the quark-gluon plasma within a T-matrix approach
24 juin 2015,
- HE Louvain en Hainaut
,
- Article scientifique
Article scientifique
The strongly coupled phase of the quark-gluon plasma (QGP) is studied here by resorting to a T -matrix
formulation in which the medium is seen as a nonideal gas of quasiparticles (quarks, antiquarks, and gluons)
interacting nonpertubatively. In the temperature range under study, (1–5)Tc, where Tc is the temperature of
deconfinement, the interactions are expected to be strong enough to generate ...