A determination of <A^2> and the non-perturbative vacuum energy of
  Yang-Mills theory in the Landau gauge

Alexandrou; Alexandrou; Alkofer; Alkofer; Bonnet; Boucaud; Boucaud; Bowman; Caswell; Celmaster; Chetyrkin; Curci; Curci; D. Dudal; Dudal; Dudal; Egorian; Ford; Fukuda; Fukuda; Fukuda; Gracey; Gross; Gross; Gubarev; Gubarev; Gusynin; H. Verschelde; J.A. Gracey; Jones; Kondo; Kondo; Kondo; Langfeld; Langfeld; Larin; Lerche; Politzer; R.E. Browne; Savvidy; Smet; Stodolsky; Tarasov; Vermaseren; Verschelde; Verschelde; Yang

research

A determination of <A^2> and the non-perturbative vacuum energy of Yang-Mills theory in the Landau gauge

Authors: Alexandrou
Alexandrou
Alkofer
Alkofer
Bonnet
Boucaud
Boucaud
Bowman
Caswell
Celmaster
Chetyrkin
Curci
Curci
D. Dudal
Dudal
Dudal
Egorian
Ford
Fukuda
Fukuda
Fukuda
Gracey
Gross
Gross
Gubarev
Gubarev
Gusynin
H. Verschelde
J.A. Gracey
Jones
Kondo
Kondo
Kondo
Langfeld
Langfeld
Larin
Lerche
Politzer
R.E. Browne
Savvidy
Smet
Stodolsky
Tarasov
Vermaseren
Verschelde
Verschelde
Yang
Publication date: 1 January 2003
Publisher: 'Elsevier BV'
Doi

Abstract

We discuss the 2-point-particle-irreducible (2PPI) expansion, which sums bubble graphs to all orders, in the context of SU(N) Yang-Mills theory in the Landau gauge. Using the method we investigate the possible existence of a gluon condensate of mass dimension two, , and the corresponding non-zero vacuum energy. This condensate gives rise to a dynamically generated mass for the gluon.Comment: 12 pages, 3 eps figures; v2 : wrong use of "enhancement" instead of "suppression" corrected; v3: version accepted for publication in Phys.Lett.