Speaker
Description
A framework connecting Cosmic Microwave Background (CMB) observables with high-energy particle phenomenology is proposed, which is based on Starobinsky supergravity coupled to the Minimal Supersymmetric Standard Model (MSSM). In this approach, the amplitude of primordial perturbations during inflation fixes the vacuum expectation values (VEVs) of scalar fields in the hidden sector arising from the Starobinsky supergravity rewritten to Einstein frame. These VEVs trigger spontaneous supersymmetry breaking and set the soft masses in the MSSM. The three-loop renormalization group (RG) running is performed between the inflationary scale of $\mathcal{O}(10^{13})$ GeV and the electroweak scale of $\mathcal{O}(10^2)$ GeV. The RG evolution demonstrates consistency with the measured Higgs mass and current particle data. The framework is highly constrained and, in its simplest version, has no free parameters. Our approach allows wino of mass $\approx 3$ TeV as the lightest supersymmetric particle (LSP). This wino LSP is a viable thermal dark matter candidate that can be decisively probed at future colliders via its characteristic disappearing track signature.