Witten diagrams in momentum space and one graviton exchange between scalars in Weyl invariant unimodular gravity
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866912066914222080 |
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| author | Anero, J. Martin, Carmelo P. |
| author_facet | Anero, J. Martin, Carmelo P. |
| contents | We tackle head-on the computation of the $s$-channel Witten diagram in momentum space corresponding to the exchange of a graviton between minimally coupled scalars in Weyl invariant unimodular gravity. By means of a lengthy calculation, we show first that the value of the diagram in question is the same as in General Relativity and, then, we obtain a compact expression for it in terms of the Mandelstam variables. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2410_07365 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Witten diagrams in momentum space and one graviton exchange between scalars in Weyl invariant unimodular gravity Anero, J. Martin, Carmelo P. High Energy Physics - Theory General Relativity and Quantum Cosmology We tackle head-on the computation of the $s$-channel Witten diagram in momentum space corresponding to the exchange of a graviton between minimally coupled scalars in Weyl invariant unimodular gravity. By means of a lengthy calculation, we show first that the value of the diagram in question is the same as in General Relativity and, then, we obtain a compact expression for it in terms of the Mandelstam variables. |
| title | Witten diagrams in momentum space and one graviton exchange between scalars in Weyl invariant unimodular gravity |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2410.07365 |