Instantons and spontaneous color symmetry breaking
Nov, 20009 pages
Published in:
- Phys.Lett.B 525 (2002) 277-282
e-Print:
- hep-ph/0011076 [hep-ph]
Report number:
- HD-THEP-00-54
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Abstract:
The instanton interaction in QCD generates an effective potential for scalar quark-antiquark condensates in the color singlet and octet channels. For three light quark flavors the cubic term in this potential induces an octet condensate and ``spontaneous breaking'' of color in the vacuum. Realistic masses of the rho- and eta'-mesons are compatible with renormalization-group-improved instanton perturbation theory.Note:
- 8 pages,LaTex,modified instanton vertex,improved mass of eta' Report-no: HD-THEP-00-54
- quantum chromodynamics
- effective potential
- quark antiquark: condensation
- quark: flavor
- instanton
- vector meson: mass
- perturbation theory: higher-order
- renormalization group
- color: symmetry breaking
- spontaneous symmetry breaking
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