Trilinear Anomalous Gauge Interactions from Intersecting Branes and the Neutral Currents Sector

TL;DR

This paper investigates anomalous gauge interactions in extensions of the Standard Model with extra U(1) symmetries, focusing on their structure, anomaly cancellation mechanisms, and implications for LHC phenomenology.

Contribution

It provides explicit expressions and generalized Ward identities for trilinear gauge vertices in models with anomalous U(1)s, including Stuckelberg and Higgs-Stuckelberg phases.

Findings

Derived generalized Ward identities for anomalous gauge vertices.

Explicit expressions for vertices in various anomaly cancellation scenarios.

Framework applicable for LHC phenomenological analyses.

Abstract

We present a study of the trilinear gauge interactions in extensions of the Standard Model (SM) with several anomalous extra U(1)'s, identified in various constructions, from special vacua of string theory to large extra dimensions. In these models an axion and generalized Chern-Simons interactions for anomalies cancelation are present. We derive generalized Ward identities for these vertices and discuss their structure in the Stuckelberg and Higgs-Stuckelberg phases. We give their explicit expressions in all the relevant cases, which can be used for phenomenological studies of these models at the LHC.