The two-loop energy-momentum tensor within the gradient-flow formalism
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arXiv
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| Format: | Preprint |
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2018
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| _version_ | 1866913832945844224 |
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| author | Harlander, Robert V. Kluth, Yannick Lange, Fabian |
| author_facet | Harlander, Robert V. Kluth, Yannick Lange, Fabian |
| contents | The gradient-flow formulation of the energy-momentum tensor of QCD is extended to NNLO perturbation theory. This means that the Wilson coefficients which multiply the flowed operators in the corresponding expression for the regular energy-momentum tensor are calculated to this order. The result has been obtained by applying modern tools of regular perturbation theory, reducing the occurring two-loop integrals, which also include flow-time integrations, to a small set of master integrals which can be calculated analytically. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_1808_09837 |
| institution | arXiv |
| publishDate | 2018 |
| record_format | arxiv |
| spellingShingle | The two-loop energy-momentum tensor within the gradient-flow formalism Harlander, Robert V. Kluth, Yannick Lange, Fabian High Energy Physics - Lattice High Energy Physics - Phenomenology The gradient-flow formulation of the energy-momentum tensor of QCD is extended to NNLO perturbation theory. This means that the Wilson coefficients which multiply the flowed operators in the corresponding expression for the regular energy-momentum tensor are calculated to this order. The result has been obtained by applying modern tools of regular perturbation theory, reducing the occurring two-loop integrals, which also include flow-time integrations, to a small set of master integrals which can be calculated analytically. |
| title | The two-loop energy-momentum tensor within the gradient-flow formalism |
| topic | High Energy Physics - Lattice High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/1808.09837 |