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0++ trigluonium sum rules
Affiliation:1. INEGI – Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial, Porto, Portugal;2. IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal;3. UNIDEMI,Departamento de Engenharia Mecânica e Industrial, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
Abstract:We estimate the mass of the 0++ trigluonium associated to the g3fabcGμνaGνϱb Gϱμc gauge-invariant gluonic operator using QCD-duality sum rules. We also evaluate its mixing with the “standard” digluonium. Then, we conclude that one cannot interpret both the σ(0.5) and the G(1.6) as lowest mass gluonia.
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