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Aurélie Strömholm Sangaré

Publications and source records attributed to Aurélie Strömholm Sangaré.

3 recordsLinked to original sources

All-multiplicity monodromy and KLT relations for AdS string integrals

We propose and study all-multiplicity building blocks for tree-level string amplitudes in AdS. These are worldsheet integrals obtained by dressing the corresponding flat-space disc and sphere integrals with multivariable multiple polylogarithms and their single-valued analogues, respectively. We derive monodromy relations for the open-string building blocks and a KLT factorisation for their closed-string counterparts. This extends the non-commutative AdS uplift of lower-point flat-space structures to general $n$-point kinematics.

hep-th↗

Stringy KLT Relations on $AdS$

We study the building blocks of open and closed string amplitudes on $AdS$. These are given by two infinite towers of world-sheet integrals generalising the Euler and complex beta functions respectively. We show that the open and closed building blocks are related by an $AdS$ version of the KLT relations, whose Kernel can be computed exactly. We furthermore show that the building blocks for open string amplitudes are given by Aomoto-Gelfand hypergeometric functions, and give their closed form expression up to weight four.

hep-th↗

Monodromy Relations for String Amplitudes on AdS

We consider the $AdS$ Veneziano amplitude describing the scattering of four gluons in type IIB string theory on $AdS_5 \times S^3$. We propose a set of powerful monodromy relations between different colour-ordered amplitudes. These relations arise as a consequence of the emergent world-sheet description of open string scattering on $AdS$. In flat space, they reduce to the usual monodromy relations for the Veneziano amplitude, and they hold order by order in the small curvature expansion. The relations hold for all results available in the literature, including the scattering of arbitrary KK-modes.

hep-th↗