Gauge Thresholds and Kaehler Metrics for Rigid Intersecting D-brane Models

TL;DR

This paper computes gauge threshold corrections and Kaehler metrics for rigid intersecting D-brane models in Z2 x Z2' orientifolds, providing key insights into gauge coupling unification and matter field metrics.

Contribution

It presents the first calculation of one-loop gauge threshold corrections and Kaehler metrics for rigid intersecting D6-branes in these orientifold models.

Findings

One-loop gauge threshold corrections are explicitly computed.

Kaehler metrics for charged chiral multiplets are determined up to two constants.

Results facilitate more precise phenomenological model building.

Abstract

The gauge threshold corrections for globally consistent Z2 x Z2' orientifolds with rigid intersecting D6-branes are computed. The one-loop corrections to the holomorphic gauge kinetic function are extracted and the Kaehler metrics for the charged chiral multiplets are determined up to two constants.