General soft terms from Supergravity including D-terms

TL;DR

This paper derives general formulas for soft supersymmetry-breaking terms in supergravity models with significant D-term contributions, exploring their implications for split supersymmetry and moduli stabilization.

Contribution

It provides a comprehensive framework for calculating soft terms including D-terms, extending previous models that mainly focused on F-terms, and discusses their phenomenological implications.

Findings

D-terms can cause large scalar-fermion mass splittings

Soft terms can be parameterized when D-terms dominate or are comparable to F-terms

Application to split supersymmetry scenario shows significant phenomenological impact

Abstract

We derive general expressions for soft terms in supergravity where D-terms contribute significantly to the supersymmetry breaking. Such D-terms can produce large splitting between scalar and fermionic partners in the spectrum. By requiring that supersymmetry breaking sets the cosmological constant to zero, we then parameterize the soft terms when D-terms dominate over F-terms or are comparable to them. We present an application of our results to the split supersymmetry scenario and briefly address the issue of moduli stabilisation.