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Thermodynamics of the quark-gluon plasma within a T-matrix approach![Peer reviewed Peer reviewed](/themes/Mirage2//images/peer_review.svg)
24 juin 2015, Lacroix, Gwendolyn; Semay, Claude; BUISSERET, Fabien,
- 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 ...
Le Boson de Brout-Englert-Higgs
Autre
Conférence présentée à l'Université de Mons (UMONS dans le cadre du cycle Univers 2014-2015, par Fabien Buisseret (Haute Ecole Louvain en Hainaut et Service de Physique nucléaire et subnucléaire, UMONS) et Evelyne Daubie (Service de Physique nucléaire et subnucléaire, UMONS)
« Presque cinquante ans après avoir été postulée, l’existence du boson de Brout-Englert-Higgs est maintenant avérée. Quel ...
Two- and three-body calculations within the dominantly orbital state method![Peer reviewed Peer reviewed](/themes/Mirage2//images/peer_review.svg)
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 ...
Q-ball formation at the deconfinement temperature in large-Nc QCD![Peer reviewed Peer reviewed](/themes/Mirage2//images/peer_review.svg)
Article scientifique
The deconfinement phase transition in large-Nc QCD is studied within the framework of an effective
Polyakov-loop model, where the potential has a U(1) symmetry originating in the large-Nc limit of a
ZNc-symmetric model. At the critical temperature, the shape of the effective potential allows the existence
of Q-balls as position-dependent fluctuations of the Polyakov loop. Q-balls with spherical ...
Relevance of glueball bound states in the Yang-Mills plasma within a many-body T-matrix approach![Peer reviewed Peer reviewed](/themes/Mirage2//images/peer_review.svg)
26 juillet 2012, Cabrera, Daniel; Lacroix, Gwendolyn; BUISSERET, Fabien; Semay, Claude,
- 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![Peer reviewed Peer reviewed](/themes/Mirage2//images/peer_review.svg)
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 ...