Outputs (4)

On the AdS 3 Virasoro-Shapiro amplitude (2025)
Journal Article
Alday, L. F., Giribet, G., & Hansen, T. (2025). On the AdS 3 Virasoro-Shapiro amplitude. Journal of High Energy Physics, 2025, Article 2. https://doi.org/10.1007/jhep03%282025%29002

We consider tree-level scattering amplitudes for four string tachyons on AdS3 × N with pure NSNS fluxes. We show that in a small curvature expansion, properly defined, the amplitudes take the form of a genus zero integral given by the Virasoro-Shapir... Read More about On the AdS 3 Virasoro-Shapiro amplitude.

Single-valuedness of the AdS Veneziano amplitude (2024)
Journal Article
Alday, L. F., & Hansen, T. (2024). Single-valuedness of the AdS Veneziano amplitude. Journal of High Energy Physics, 2024(8), Article 108. https://doi.org/10.1007/jhep08%282024%29108

We consider the Veneziano amplitude for the scattering of gluons in type IIB string theory on AdS₅ × S⁵/ℤ₂ in the presence of D7 branes. On general grounds curvature corrections around flat space can be thought of as arising from the extra insertion... Read More about Single-valuedness of the AdS Veneziano amplitude.

The AdS Veneziano amplitude at small curvature (2024)
Journal Article
Alday, L. F., Chester, S. M., Hansen, T., & Zhong, D. (2024). The AdS Veneziano amplitude at small curvature. Journal of High Energy Physics, 2024(5), Article 322. https://doi.org/10.1007/jhep05%282024%29322

We compute the AdS Veneziano amplitude for type IIB gluon scattering in AdS5 × S3 to all orders in α′ in a small curvature expansion. This is achieved by combining a dispersion relation in the dual 4dN = 2 SCFT with an ansatz for the amplitude as a w... Read More about The AdS Veneziano amplitude at small curvature.

High Energy String Scattering in AdS (2024)
Journal Article
Alday, L. F., Hansen, T., & Nocchi, M. (2024). High Energy String Scattering in AdS. Journal of High Energy Physics, 2024(2), Article 89. https://doi.org/10.1007/jhep02%282024%29089

We study the AdS Virasoro-Shapiro amplitude in the limit of fixed-angle high energy scattering. A recent representation as a world-sheet integral allows to compute the amplitude in this regime by saddle point techniques, very much as in flat space. T... Read More about High Energy String Scattering in AdS.