Journal
PHYSICAL REVIEW D
Volume 92, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.92.034001
Keywords
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Funding
- Helmholtz International Center for FAIR within the LOEWE program of the State of Hesse
- BMBF [06GI7121]
- Erwin Schroedinger fellowship from the Austrian Science Fund, FWF [J3392-N20]
- Austrian Science Fund (FWF) [J3392] Funding Source: Austrian Science Fund (FWF)
- Austrian Science Fund (FWF) [J 3392] Funding Source: researchfish
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We formulate a framework to determine the mass of glueball states of the Landau gauge Yang-Mills theory in the continuum. To this end we derive a Bethe-Salpeter equation for two gluon bound states including the effects of Faddeev-Popov ghosts. We construct a suitable approximation scheme such that the interactions in the bound state equation match a corresponding successful approximation of the Dyson-Schwinger equations for the Landau gauge ghost and gluon propagators. Based upon a recently obtained solution for the propagators in the complex momentum plane we obtain results for the mass of the 0(++) and 0(-+) glueballs. In the scalar channel we find a mass value in agreement with lattice gauge theory.
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