• Relevance of glueball bound states in the Yang-Mills plasma within a many-body T-matrix approachPeer reviewedOpen access 

      26 juillet 2012, Cabrera, Daniel; Lacroix, Gwendolyn; BUISSERET, Fabien; Semay, Claude, HE Louvain en Hainaut
      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 ...
    • Thermodynamics of the quark-gluon plasma within a T-matrix approachPeer reviewedOpen access 

      24 juin 2015, Lacroix, Gwendolyn; Semay, Claude; BUISSERET, Fabien, HE Louvain en Hainaut
      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 ...
    • Two- and three-body calculations within the dominantly orbital state methodPeer reviewedOpen access 

      14 mai 2013, Semay, Claude; BUISSERET, Fabien, HE Louvain en Hainaut
      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 ...