Indirect Search for Supersymmetry

TL;DR

This paper explores indirect effects of supersymmetric particles in low energy experiments, analyzing flavor-changing processes, magnetic moments, and lepton flavor violations within supergravity models, to identify signatures of supersymmetry.

Contribution

It provides a detailed analysis of supersymmetric effects on various low energy observables, including recent Higgs results, and proposes using asymmetries to distinguish GUT models.

Findings

Supersymmetric contributions can significantly affect B0-B0bar mixing.

Muon anomalous magnetic moment shows potential deviations due to SUSY.

Asymmetries in lepton processes can differentiate GUT models.

Abstract

Effects of supersymmetric particles may appear in various low energy experiments through loop diagrams. We discuss various flavor changing neutral current processes, the muon anomalous magnetic moment and lepton flavor violation in the context of the supergravity model. In particular the $B^0$-$\ol{B}^0$ mixing and the muon anomalous magnetic moment are revisited taking into account the recent Higgs boson search result. We also consider $\mu^+ \to e^+ \gamma$ and $\mu^+ \to e^+ e^+ e^-$ processes with polarized muons. We calculate the P-odd and T-odd asymmetries in these processes for SU(5) and SO(10) supersymmetric grand unified theories and show that these asymmetries are useful to distinguish different models.