Double logarithms in N $$ \mathcal{N} $$ ≥ 4 supergravity: weak gravity and Shapiro’s time delay
Abstract A study of the double logarithmic in the center-of-mass energy, s, contributions to the four-graviton scattering amplitude is presented for four-dimensional N $$ \mathcal{N} $$ ≥ 4 supergravities. This includes a novel representation for the coefficients of the perturbative expansion based...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-01-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP01(2020)163 |