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arXiv · 2001.11025

Muon g-2 vs LHC Run 2 in Supersymmetric Models

Motoi Endo·Koichi Hamaguchi·Sho Iwamoto·Teppei Kitahara
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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 $m_{\tilde{\mu}_{\mathrm L}}\gtrsim m_{{\tilde\chi}^{\pm}_1}$ are still widely allowed, where the lighter chargino dominantly decays into a W-boson and a neutralino.

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Motoi Endo, Koichi Hamaguchi, Sho Iwamoto, Teppei Kitahara. 2020-01-29. Muon g-2 vs LHC Run 2 in Supersymmetric Models. https://doi.org/10.1007/jhep04(2020)165

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