Gribov copies, avalanches and dynamic generation of a gluon mass
| Autor: | Matthieu Tissier |
|---|---|
| Přispěvatelé: | Laboratoire de Physique Théorique de la Matière Condensée (LPTMC), Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
High Energy Physics - Theory
Nuclear and High Energy Physics Particle physics Field (physics) gauge fixing media_common.quotation_subject High Energy Physics::Lattice FOS: Physical sciences 01 natural sciences Theoretical physics High Energy Physics::Theory Metastability 0103 physical sciences ground state Gauge theory 010306 general physics gauge dependence media_common Physics 010308 nuclear & particles physics [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th] Ambiguity lcsh:QC1-999 Gluon High Energy Physics - Theory (hep-th) avalanche infrared gluon: mass Ground state statistical lcsh:Physics gauge field theory: nonabelian Gribov problem |
| Zdroj: | Physics Letters Phys.Lett.B Phys.Lett.B, 2018, 784, pp.146-150. ⟨10.1016/j.physletb.2018.07.043⟩ Physics Letters B Physics Letters B, Elsevier, 2018, 784, pp.146-150. ⟨10.1016/j.physletb.2018.07.043⟩ Physics Letters B, Vol 784, Iss, Pp 146-150 (2018) |
| ISSN: | 0370-2693 |
| DOI: | 10.1016/j.physletb.2018.07.043⟩ |
| Popis: | Analytic calculations in the infrared regime of nonabelian gauge theories are hampered by the presence of Gribov copies which results in some ambiguity in the gauge-fixing procedure. This problem shares strong similarities with the issue of finding the true ground state among a large number of metastable states, a typical situation in the field of statistical physics of disordered systems. Building on this analogy, we propose a new gauge-fixing procedure which, we argue, makes more explicit the influence of the Gribov copies. A 1-loop calculation shows that the dynamics of these copies can lead to the spontaneous generation of a gauge-dependent gluon mass. 5 pages, 1 figure |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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