Four-gluon vertex from the Curci-Ferrari model at one-loop order
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866914787757129728 |
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| author | Barrios, Nahuel De Fabritiis, Philipe Peláez, Marcela |
| author_facet | Barrios, Nahuel De Fabritiis, Philipe Peláez, Marcela |
| contents | We compute the four-gluon vertex from the Curci-Ferrari model at one-loop order for a collinear configuration. Our results display a good agreement with the first lattice data for this vertex, released very recently (arXiv:2401.12008). A noteworthy novelty of our work is that we can provide analytical expressions for the four-gluon vertex in collinear configurations, together with a renormalization scheme that allows us to perform reliable perturbative computations even in the infrared regime. We observe an infrared suppression in the form factor associated with the tree-level four-gluon tensor with a possible zero-crossing in the deep infrared which demands new lattice investigations to be confirmed. Moreover, we report an infrared divergence in the completely symmetric tensor form factor due to the ghost-loop contributions. These results come as predictions since previous two-point correlations fix all the available parameters of the model, up to an overall constant factor. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_17056 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Four-gluon vertex from the Curci-Ferrari model at one-loop order Barrios, Nahuel De Fabritiis, Philipe Peláez, Marcela High Energy Physics - Theory High Energy Physics - Lattice High Energy Physics - Phenomenology We compute the four-gluon vertex from the Curci-Ferrari model at one-loop order for a collinear configuration. Our results display a good agreement with the first lattice data for this vertex, released very recently (arXiv:2401.12008). A noteworthy novelty of our work is that we can provide analytical expressions for the four-gluon vertex in collinear configurations, together with a renormalization scheme that allows us to perform reliable perturbative computations even in the infrared regime. We observe an infrared suppression in the form factor associated with the tree-level four-gluon tensor with a possible zero-crossing in the deep infrared which demands new lattice investigations to be confirmed. Moreover, we report an infrared divergence in the completely symmetric tensor form factor due to the ghost-loop contributions. These results come as predictions since previous two-point correlations fix all the available parameters of the model, up to an overall constant factor. |
| title | Four-gluon vertex from the Curci-Ferrari model at one-loop order |
| topic | High Energy Physics - Theory High Energy Physics - Lattice High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2403.17056 |