Low Energy Probes of CP Violation in a Flavor Blind MSSM

TL;DR

This paper explores how a flavor blind MSSM with new CP violating phases can be probed through electric dipole moments and B meson CP asymmetries, potentially explaining anomalies and guiding future experiments.

Contribution

It demonstrates that low energy observables like EDMs and B decay asymmetries can reveal CP violation in a flavor blind MSSM, linking these to recent experimental anomalies.

Findings

Non-standard S_phi(eta')K_S can be explained within the scenario.

Predicted lower bounds for electron and neutron EDMs at 10^-28 e cm.

Positive NP contributions to epsilon_K and muon g-2 anomaly.

Abstract

We analyze the low energy implications of a flavor blind supersymmetric scenario (where the CKM matrix is the only source of flavor violation) in the presence of new CP violating but flavor conserving phases in the soft sector. We find that the best probes of this rather restricted scenario are i) the electric dipole moments (EDMs) of the electron (d_e) and the neutron (d_n) and ii) flavor changing and CP violating processes in B systems, like the CP asymmetries in b->s gamma and B->phi(eta^')K_S, i.e. A_CP(b->s gamma) and S_phi(eta^')K_S, respectively. The non-standard values for S_phi(eta^')K_S, measured at the B factories, can find a natural explanation within our scenario and this would unambiguously imply i) positive and often large (non-standard) values for A_CP(b->s gamma) and ii) a lower bound for the electron and neutron EDMs at the level of d_e,n > 10^-28 e cm. Moreover, we predict positive New Physics (NP) contributions to epsilon_K which could be welcomed in view of the recently lowered Standard Model value for epsilon_K. Interestingly, an explanation for the non-standard values for S_phi(eta^')K_S can also naturally lead to an explanation for the anomaly of the muon anomalous magnetic moment. Finally, we outline the role and the interplay of the direct NP searches at the LHC with the indirect searches performed by low energy flavor physics observables.