3 papers
hep-th2024
Single-valuedness of the AdS Veneziano amplitude
Luis F. Alday, Tobias Hansen
We consider the Veneziano amplitude for the scattering of gluons in type IIB string theory on in the presence of D7 branes. On general grounds curva…
hep-th2023
AdS Virasoro-Shapiro amplitude with KK modes
Giulia Fardelli, Tobias Hansen, Joao A. Silva
We determine the first curvature correction for the string amplitude of two supergravity states and two Kaluza-Klein modes on , which is dual to the…
hep-th2023
Emergent world-sheet for the AdS Virasoro-Shapiro amplitude
Luis F. Alday, Tobias Hansen, Joao A. Silva
We construct a representation for the first AdS curvature correction to the Virasoro-Shapiro amplitude, as an integral over the Riemann sphere. The integrand is that of the Virasor…