The S-matrix and graviton self-energy in quantum Yang-Mills gravity

The S -matrix, its unitarity and the graviton self-energy at the one-loop level are discussed on the basis of quantum Yang-Mills gravity with the translational gauge symmetry in flat space-time. The unitarity and gauge invariance of the S -matrix in a class of gauge conditions is preserved by massle...

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Bibliographic Details
Published in:European physical journal plus 2012-12, Vol.127 (12), p.146, Article 146
Main Authors: Hsu, Jong-Ping, Kim, Sung Hoon
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Atomic
Complex Systems
Condensed Matter Physics
Energy
Gauge invariance
Gravitons
Mathematical and Computational Physics
Molecular
Optical and Plasma Physics
Physics
Physics and Astronomy
Quantum electrodynamics
Regular Article
Regularization
Resultants
S matrix theory
Theoretical
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Summary:The S -matrix, its unitarity and the graviton self-energy at the one-loop level are discussed on the basis of quantum Yang-Mills gravity with the translational gauge symmetry in flat space-time. The unitarity and gauge invariance of the S -matrix in a class of gauge conditions is preserved by massless ghost vector particles, called “Feynman-DeWitt-Mandelstam” (FDM) ghosts, in quantum Yang-Mills gravity. Using dimensional regularization, the graviton self-energy is explicitly calculated with a general gauge condition. The resultant divergence of graviton self-energy at the one-loop level resembles that in quantum electrodynamics.
ISSN:2190-5444
2190-5444
DOI:10.1140/epjp/i2012-12146-3