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Renormalization constants of the lattice energy momentum tensor using the gradient flow

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 نشر من قبل Francesco Capponi Mr
 تاريخ النشر 2015
  مجال البحث
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We employ a new strategy for a non perturbative determination of the renormalized energy momentum tensor. The strategy is based on the definition of suitable lattice Ward identities probed by observables computed along the gradient flow. The new set of identities exhibits many interesting qualities, arising from the UV finiteness of flowed composite operators. In this paper we show how this method can be used to non perturbatively renormalize the energy momentum tensor for a SU(3) Yang-Mills theory, and report our numerical results.

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