Double-Virtual NNLO QCD Corrections for Five-Parton Scattering: The Gluon Channel
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866913349753634816 |
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| author | De Laurentis, Giuseppe Ita, Harald Klinkert, Maximillian Sotnikov, Vasily |
| author_facet | De Laurentis, Giuseppe Ita, Harald Klinkert, Maximillian Sotnikov, Vasily |
| contents | We compute the two-loop helicity amplitudes for the scattering of five gluons, including all contributions beyond the leading-color approximation. The analytic expressions are represented as linear combinations of transcendental functions with rational coefficients, which we reconstruct from finite-field samples obtained with the numerical unitarity method. Guided by the requirement of removing unphysical singularities, we find a remarkably compact generating set of rational coefficients, which we are able to display entirely in the manuscript. We implement our results in a public code, which provides efficient and reliable numerical evaluations for phenomenological applications. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2311_10086 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Double-Virtual NNLO QCD Corrections for Five-Parton Scattering: The Gluon Channel De Laurentis, Giuseppe Ita, Harald Klinkert, Maximillian Sotnikov, Vasily High Energy Physics - Phenomenology High Energy Physics - Theory We compute the two-loop helicity amplitudes for the scattering of five gluons, including all contributions beyond the leading-color approximation. The analytic expressions are represented as linear combinations of transcendental functions with rational coefficients, which we reconstruct from finite-field samples obtained with the numerical unitarity method. Guided by the requirement of removing unphysical singularities, we find a remarkably compact generating set of rational coefficients, which we are able to display entirely in the manuscript. We implement our results in a public code, which provides efficient and reliable numerical evaluations for phenomenological applications. |
| title | Double-Virtual NNLO QCD Corrections for Five-Parton Scattering: The Gluon Channel |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2311.10086 |