scholarly journals Gluon propagator in Feynman gauge by the method of stationary variance

2014 ◽  
Vol 90 (9) ◽  
Author(s):  
Fabio Siringo
1996 ◽  
Vol 11 (22) ◽  
pp. 1825-1834 ◽  
Author(s):  
O.K. KALASHNIKOV

A tensor representation of the gluon propagator is found within covariant gauges for a non-Abelian theory after symmetry breaking due to <A0>≠0 and the exact equations which determine the dispersion laws of plasma excitations are explicitly obtained. In the high temperature region and fixing the Feynman gauge we solved these equations to find the damping of the plasma oscillations and the shifting of their frequency. The phase transition of a gauge symmetry restoration is estimated to be αc(T)≈4/3.


2001 ◽  
Vol 63 (12) ◽  
Author(s):  
Gregory S. Adkins ◽  
Richard N. Fell ◽  
J. Sapirstein
Keyword(s):  

2018 ◽  
Vol 98 (3) ◽  
Author(s):  
Fabio Siringo ◽  
Giorgio Comitini
Keyword(s):  

2018 ◽  
Vol 98 (9) ◽  
Author(s):  
James C. Biddle ◽  
Waseem Kamleh ◽  
Derek B. Leinweber

2007 ◽  
Vol 2007 (03) ◽  
pp. 076-076 ◽  
Author(s):  
Philippe Boucaud ◽  
Jean Pierre Leroy ◽  
Alain Le Yaouanc ◽  
Jacques Micheli ◽  
Olivier Pène ◽  
...  

1999 ◽  
Vol 14 (06) ◽  
pp. 447-457 ◽  
Author(s):  
JOSE A. MAGPANTAY

Using the recently proposed nonlinear gauge condition [Formula: see text] we show the area law behavior of the Wilson loop and the linear dependence of the instantaneous gluon propagator. The field configurations responsible for confinement are those in the nonlinear sector of the gauge-fixing condition (the linear sector being the Coulomb gauge). The nonlinear sector is actually composed of "Gribov horizons" on the parallel surfaces ∂ · Aa=fa≠0. In this sector, the gauge field [Formula: see text] can be expressed in terms of fa and a new vector field [Formula: see text]. The effective dynamics of fa suggests nonperturbative effects. This was confirmed by showing that all spherically symmetric (in 4-D Euclidean) fa(x) are classical solutions and averaging these solutions using a Gaussian distribution (thereby treating these fields as random) lead to confinement. In essence the confinement mechanism is not quantum mechanical in nature but simply a statistical treatment of classical spherically symmetric fields on the "horizons" of ∂ · Aa=fa(x) surfaces.


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