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+ | ====== TTP00-17 Two Loop QCD Vertices and Three Loop MOM $\beta$ functions ====== | ||

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+ | <hidden TTP00-17 Two Loop QCD Vertices and Three Loop MOM $\beta$ functions > We present numerical results for the two loop QCD corrections to the | ||

+ | ghost gluon vertex, the quark gluon vertex, and the triple gluon vertex in | ||

+ | the massless limit at the symmetric point. We restrict ourselves to the tensor | ||

+ | structures existing in the tree level. The corrections are used to examine | ||

+ | different coupling constant definitions in momentum subtraction schemes | ||

+ | and the corresponding three-loop $\beta$ functions. | ||

+ | </hidden> | ||

+ | |**K.G. Chetyrkin and T. Seidensticker** | | ||

+ | |** Phys.Lett. B495 74-80 2000 ** | | ||

+ | | {{preprints:2000:ttp00-17.pdf|PDF}} {{preprints:2000:ttp00-17.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/0008094|arXiv]] | | ||

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