Abstract
We initiate the study of one-loop gluon amplitudes in AdS space. These amplitudes were recently computed at tree level for a variety of backgrounds of the form AdSd+1 × S3. For concreteness, we compute the one-loop correction to the massless gluon amplitude on AdS5×S3, which corresponds to the four-point correlator of the flavor current multiplet in the dual 4d \( \mathcal{N} \) = 2 SCFT. This requires solving a mixing problem that involves tree-level amplitudes of arbitrarily massive Kaluza-Klein modes. The final answer has the same color structure as in flat space but the dependence on Mandelstam variables is more complicated, with logarithms replaced by polygamma functions.
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Alday, L.F., Bissi, A. & Zhou, X. One-loop gluon amplitudes in AdS. J. High Energ. Phys. 2022, 105 (2022). https://doi.org/10.1007/JHEP02(2022)105
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DOI: https://doi.org/10.1007/JHEP02(2022)105