Article (Scientific journals)
The SUSY Yang Mills plasma in a T-matrix approach
Lacroix, Gwendolyn; Semay, Claude; Buisseret, Fabien
2015In International Journal of Modern Physics A, 30 (24)
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Keywords :
[en] finite temperature; [en] Supersymmetric models; [en] quasiparticle approaches
Abstract :
[en] In this paper, the thermodynamic properties of N = 1 supersymmetric Yang-Mills theory with an arbitrary gauge group are investigated. In the confined range, we show that identifying the bound state spectrum with a Hagedorn one coming from noncritical closed superstring theory leads to a prediction for the value of the deconfining temperature Tc that agrees with recent lattice data. The deconfined phase is studied by resorting to a T-matrix formulation of statistical mechanics in which the medium under study is seen as a gas of quasigluons and quasigluinos interacting nonperturbatively. Emphasis is put on the temperature range (1-5) T_c, where the interactions are expected to be strong enough to generate bound states. Binary bound states of gluons and gluinos are indeed found to be bound up to 1.4 T_c for any gauge group. The equation of state is then computed numerically for SU(N) and G_2, and discussed in the case of an arbitrary gauge group. It is found to be nearly independent of the gauge group and very close to that of nonsupersymmetric Yang-Mills when normalized to the Stefan-Boltzmann pressure and expressed as a function of T/T_c.
Research center :
AGIF - Algèbre, Géométrie et Interactions fondamentales
Disciplines :
Physics
Author, co-author :
Lacroix, Gwendolyn ;  Université de Mons > Faculté des Sciences > Physique nucléaire et subnucléaire
Semay, Claude  ;  Université de Mons > Faculté des Sciences > Physique nucléaire et subnucléaire
Buisseret, Fabien ;  Université de Mons > Faculté des Sciences > Physique nucléaire et subnucléaire
Language :
English
Title :
The SUSY Yang Mills plasma in a T-matrix approach
Publication date :
12 August 2015
Journal title :
International Journal of Modern Physics A
ISSN :
0217-751X
Publisher :
World Scientific Publishing Co., Singapore
Volume :
30
Issue :
24
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S824 - Physique nucléaire et subnucléaire
Research institute :
R150 - Institut de Recherche sur les Systèmes Complexes
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