Imprints of supersymmetry at a future Z factory

TL;DR

This paper explores how future precision measurements of Z boson decays could reveal signs of supersymmetry in the MSSM framework, especially when direct detection at colliders is challenging.

Contribution

It analyzes the potential of a future Z factory to detect MSSM effects through Z decay branching ratios, emphasizing the importance of systematic uncertainty reduction.

Findings

Future Z factories can probe MSSM electroweak effects indirectly.

Sensitivity depends on reducing systematic uncertainties.

Complementary to LHC direct searches.

Abstract

We study the discovery potential of Z branching ratios due to contributions induced by the MSSM electroweak sector, assuming that the squarks and gluinos are heavy. Precision measurements at a future Z factory would yield sensitivity to MSSM that is complementary to direct searches at the LHC, provided that the systematic uncertainties can be reduced to a level comparable to the expected statistical uncertainties.