A Two-Form Formulation of the Vector-Tensor Multiplet in Central Charge Superspace

TL;DR

This paper develops a superfield-based two-form formulation for the N=2 vector-tensor multiplet in central charge superspace, including the non-Abelian case and Chern-Simons couplings, advancing supersymmetric gauge theory modeling.

Contribution

It introduces a novel two-form superfield formulation for the N=2 vector-tensor multiplet and extends it to non-Abelian gauge theories with Chern-Simons interactions.

Findings

Constructed the two-form formulation using superfield methods.

Derived the constraints and solved Bianchi identities.

Presented the action for coupled vector-tensor and non-Abelian supergauge multiplets.

Abstract

A two-form formulation for the N=2 vector-tensor multiplet is constructed using superfield methods in central charge superspace. The N=2 non-Abelian standard supergauge multiplet in central charge superspace is also discussed, as is with the associated Chern-Simons form. We give the constraints, solve the Bianchi identities and present the action for a theory of the vector-tensor multiplet coupled to the non-Abelian supergauge multiplet via the Chern-Simons form.