BRST Quantization, Strong CP Violation, the U(1) Problem and $θ$ Vacua

dc.creatorYamagishi, Hidenaga
dc.creatorZahed, Ismail
dc.date1995-07-13
dc.date.accessioned2026-07-07T03:57:53Z
dc.date.available2026-07-07T03:57:53Z
dc.descriptionThe non-perturbative implications of BRST quantization are examined for $θ$ vacua and related issues. Strong CP violation is shown to be absent for QCD in the BRST formalism. Previous evidence for CP violation is reexamined, and much of it is found to be inconclusive. It is proposed that some lattice calculations be redone to clarify the situation. For the U(1) problem, difficulties are encountered for a conventional solution within the BRST framework. We also find problems with previous instanton and non-instanton approaches.
dc.description6 pages
dc.identifierhttps://arxiv.org/abs/hep-ph/9507296
dc.identifierhttp://arxiv.org/abs/hep-ph/9507296
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/45626
dc.subjectHigh Energy Physics - Phenomenology
dc.titleBRST Quantization, Strong CP Violation, the U(1) Problem and $θ$ Vacua
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