English

Flavor- and CP-safe explanation of $g_\mu-2$ anomaly

High Energy Physics - Phenomenology 2023-03-22 v2 High Energy Physics - Experiment

Abstract

Supersymmetry is still a viable explanation for the muon g2g-2 anomaly, if the sleptons and electroweak gauginos are O(100)\mathcal{O}(100) GeV. However, for supersymmetry breaking masses this light, the SUSY flavor and CP-problem are exacerbated. To address this issue, we consider a flavor-safe gauge mediated explanation of the muon g2g-2 with additional Higgs soft supersymmetry breaking mass parameters. The setup provides a generic parameter space within minimal gauge mediation. Furthermore, we show that the problematic CP violating phase can be dynamically suppressed. We find that gauge mediation models have large portions of parameter space where the muon g2g-2 can be explained at 1 σ\sigma level. The interplay between the slepton and the CP-odd Higgs masses also makes the majority of this model's parameter space testable at the LHC through searches for sleptons or additional Higgs bosons.

Keywords

Cite

@article{arxiv.2205.14906,
  title  = {Flavor- and CP-safe explanation of $g_\mu-2$ anomaly},
  author = {Jason L. Evans and Tsutomu T. Yanagida and Norimi Yokozaki},
  journal= {arXiv preprint arXiv:2205.14906},
  year   = {2023}
}

Comments

31 pages, 3 figures, version to appear in JHEP