Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-12-20
Phys.Lett.B373:147-152,1996
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages (REVTEX), 4 postscript figures
Scientific paper
10.1016/0370-2693(96)00143-8
The generation of gauge--dependent fermion vacuum condensates in Yang--Mills theory would dynamically break the gauge symmetry and thus provide an alternative to the Higgs mechanism in unified theories. We explore a simple example: instanton-induced quark pair (diquark) condensation in QCD with 2 flavors and $N_c$ colors. We do find diquark condensates in the vacuum, but only for $N_c = 2$, where they are equivalent to the standard quark-antiquark condensate. At $N_c \geq 3$ diquark condensates exist as meta--stable saddle points of the instanton-induced effective QCD action and may strongly affect the properties of matter under extreme conditions. The scalar diquark excitation, which is a Goldstone boson at $N_c =2$, becomes unbound for $N_c \geq 3$.
Diakonov Dmitri
Forkel Hilmar
Lutz Matthias
No associations
LandOfFree
Dynamical Higgs Mechanism without Elementary Scalars: A Lesson from Instantons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dynamical Higgs Mechanism without Elementary Scalars: A Lesson from Instantons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical Higgs Mechanism without Elementary Scalars: A Lesson from Instantons will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-98502