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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 ...
Two- and three-body calculations within the dominantly orbital state method
14 mai 2013,
- HE Louvain en Hainaut
,
- Article scientifique
Article scientifique
The dominantly orbital state method allows a semiclassical description of quantum systems. At the origin, it was developed for two-body relativistic systems. Here, the method is extended to treat two-body Hamiltonians and systems with three identical particles, in D≥2 dimensions, with arbitrary kinetic energy and potential. This method is very easy to implement and can be used in a large variety of ...
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 ...