Details

Autor(en) / Beteiligte

• Canfora, Fabrizio
• Hidalgo, Diego
• Pais, Pablo

Titel

The Gribov problem in presence of background field for SU(2) Yang-Mills theory

Ist Teil von

• Journal of physics. Conference series, 2018-06, Vol.1043 (1), p.12035

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2018

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• The Gribov problem in the presence of a background field is analyzed: in particular, we study the Gribov copies equation in the Landau-De Witt gauge as well as the semi-classical Gribov gap equation. As background field, we choose the simplest non-trivial one which corresponds to a constant gauge potential with non-vanishing component along the Euclidean time direction. We show that the Gribov copies equation is affected directly by the presence of the background field, constructing an explicit example. The analysis of the Gribov gap equation shows that the larger the background field, the smaller the Gribov mass parameter. These results strongly suggest that the relevance of the Gribov copies (from the path integral point of view) decreases as the size of the background field increases.