Radiative natural SUSY spectrum from deflected AMSB scenario with messenger-matter interactions

TL;DR

This paper proposes a radiative natural SUSY spectrum within a deflected anomaly mediation framework, achieving positive slepton masses, correct dark matter relic density, and the 125 GeV Higgs mass, with testable predictions for direct detection experiments.

Contribution

It introduces a novel deflected AMSB scenario with messenger-matter interactions that naturally produce a viable natural SUSY spectrum and dark matter properties.

Findings

Positive slepton masses achieved without Landau pole issues

Dark matter can be a mixed bino-higgsino with correct relic density

Most low fine-tuning points are testable by XENON-1T

Abstract

A radiative natural SUSY spectrum are proposed in the deflected anomaly mediation scenario with general messenger-matter interactions. Due to the contributions from the new interactions, positive slepton masses as well as a large |A_t| term can naturally be obtained with either sign of deflection parameter and few messenger species (thus avoid the possible Landau pole problem). In this scenario, in contrast to the ordinary (radiative) natural SUSY scenario with under-abundance of dark matter (DM), the DM can be the mixed bino-higgsino and have the right relic density. The 125 GeV Higgs mass can also be easily obtained in our scenario. The majority of low EW fine tuning points can be covered by the XENON-1T direct detection experiments.