Generalized Soft Breaking Leverage for the MSSM

TL;DR

This paper investigates how additional non-holomorphic soft breaking terms affect MSSM phenomenology, showing they can significantly alter particle spectra and potentially reconcile some solutions with experimental constraints.

Contribution

It introduces the impact of non-holomorphic soft breaking terms on MSSM, demonstrating their ability to modify spectra and improve compatibility with experimental data.

Findings

Non-holomorphic terms can be as large as hundreds of GeV.

Higgsinos, stops, and heavy Higgs bosons are highly sensitive to these terms.

Light stop can become nearly degenerate with the top quark.

Abstract

In this work we study implications of additional non-holomorphic soft breaking terms (mu', A'_t, A'_b and A'_tau) on the MSSM phenomenology. By respecting the existing bounds on the mass measurements and restrictions coming from certain B-decays, we probe reactions of the MSSM to these additional soft breaking terms. We provide examples in which some slightly excluded solutions of the MSSM can be made to be consistent with the current experimental results. During this, even after applying additional fine-tuning constraints the non-holomorphic terms are allowed to be as large as hundreds of GeV. Such terms prove that they are capable of enriching the phenomenology and varying the mass spectra of the MSSM heavily, with a reasonable amount of fine-tuning. We observe that higgsinos, the lightest stop, the heavy Higgs boson states A, H, charged H, sbottom and stau exhibit the highest sensitivity to the new terms. We also show how the light stop can become nearly degenerate with top quark using these non-holomorphic terms.