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arXiv · hep-ph/0608171

Do Instantons Like a Colorful Background?

Holger Gies·Joerg Jaeckel·Jan M. Pawlowski·Christof Wetterich
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Abstract

We investigate chiral symmetry breaking and color symmetry breaking in QCD. The effective potential of the corresponding scalar condensates is discussed in the presence of non-perturbative contributions from the semiclassical one-instanton sector. We concentrate on a color singlet scalar background which can describe chiral condensation, as well as a color octet scalar background which can generate mass for the gluons. Whereas a non-vanishing singlet chiral field is favored by the instantons, we have found no indication for a preference of color octet backgrounds.

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Holger Gies, Joerg Jaeckel, Jan M. Pawlowski, Christof Wetterich. 2006-08-15. Do Instantons Like a Colorful Background?. https://doi.org/10.1140/epjc%2Fs10052-006-0178-2

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