Abstract
Supersymmetric models with sub-TeV charginos and sleptons have been a candidate for the origin of the long-standing discrepancy in the muon anomalous magnetic moment (g − 2). By gathering all the available LHC Run 2 results, we investigate the latest LHC constraints on models that explain the anomaly by their chargino contribution to the muon g − 2. It is shown that the parameter regions where sleptons are lighter than charginos are strongly disfavored. In contrast, we find that the models with \( {m}_{{\tilde{\mu}}_{\mathrm{L}}}\underset{\sim }{>}{m}_{{\tilde{\chi}}_1^{\pm }} \) are still widely allowed, where the lighter chargino dominantly decays into a W-boson and a neutralino.
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Endo, M., Hamaguchi, K., Iwamoto, S. et al. Muon g − 2 vs LHC Run 2 in supersymmetric models. J. High Energ. Phys. 2020, 165 (2020). https://doi.org/10.1007/JHEP04(2020)165
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DOI: https://doi.org/10.1007/JHEP04(2020)165