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Speaker |
Kondo, Kei-Ichi |
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Talk Title |
An exact result for the behavior of Yang-Mills Green functions in the deep infrared region |
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Abstract |
We discuss how restricting the functional integral to the Gribov region for avoiding Gribov copies affects the deep infrared behavior of Green functions, e.g., gluon and ghost propagators in Yang-Mills theory. We prove that the ghost propagator behaves like free and the gluon progator is no-vanishing in deep infrared region within the Gribov-Zwanziger theory in harmony with recent lattice results and decoupling solution of the Schwinger-Dyson equation, although Gribov originally argued that such a restriction leads to the vanishing gluon propagator and enhanced ghost propagator. We also discuss its implications for color confinement. |
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