Higher Order Couplings in Magnetized Brane Models

TL;DR

This paper calculates higher order couplings in magnetized brane models, demonstrating they can be expressed as products of three-point couplings, consistent with conformal field theory results in intersecting D-brane models.

Contribution

It provides a systematic computation of higher order couplings and shows their factorization into three-point couplings, aligning with conformal field theory predictions.

Findings

Higher order couplings are products of three-point couplings.

Consistency with conformal field theory calculations.

Applicable to magnetized and intersecting D-brane models.

Abstract

We compute three-point and higher order couplings in magnetized brane models. We show that higher order couplings are written as products of three-point couplings. This behavior is the same as higher order amplitudes by conformal field theory calculations e.g. in intersecting D-brane models.