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Probing Bino Contribution to Muon g-2

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arxiv 1309.3065 v3 pith:5U7FG5JH submitted 2013-09-12 hep-ph

Motoi Endo , Koichi Hamaguchi , Teppei Kitahara , Takahiro Yoshinaga This is my paper · ORCID
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keywords binolargeanomalyboundcontributionsmassmassesmodels
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We study SUSY models in which Bino contributions solve the muon g-2 anomaly. The contributions are enhanced by large left-right mixing of the smuons. However, it is constrained by the vacuum stability condition of the slepton--Higgs potential. Therefore, there are upper bounds on masses of sleptons and Bino. When the slepton soft masses are universal, the upper bound on the smuon mass becomes 330 (460)GeV in order to solve the g-2 anomaly at the 1 sigma (2 sigma) level. It is within the reach of LHC and ILC. If the stau is heavier than the smuon, the bound can be as large as 1.4 (1.9)TeV. Such non-universal slepton mass spectrum generically predicts too large LFV/CPV. We show that the models are expected to be probed by LHC/ILC and LFV/CPV complementarily in future.

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  1. Revisiting CMSSM with Non-Universal Gaugino Masses under Current Constraints

    hep-ph 2024-12 conditional novelty 4.0 of 10

    Current data restrict the g~-SUGRA scenario to tanβ ≳ 5 and M0 ≳ 20 tanβ GeV, with large muon g-2 contributions difficult and future colliders needed to cover the remaining parameter space.

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