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Low energy SUSY confronted with new measurements of W-boson mass and muon g-2

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arxiv 2204.04202 v3 pith:WTAXSXG3 submitted 2022-04-08 hep-ph

classification hep-ph
keywords measurementsparametersigmaspacedeviationenergymassmeasurement
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

The new CDF II measurement of $W$-boson mass shows a 7$\sigma$ deviation from the Standard Model (SM) prediction, while the recent FNAL measurement of the muon $g-2$ shows a 4.2$\sigma$ deviation (combined with the BNL result) from the SM. Both of them strongly indicate new physics beyond the SM. In this work we study the implication of both measurements on low energy supersymmetry. With an extensive exploration of the parameter space of the minimal supersymmetric standard model (MSSM), we find that in the parameter space allowed by current experimental constraints from colliders and dark matter detections, the MSSM can simultaneously explain both measurements on the edge of $2\sigma$ level, taking theoretical uncertainties into consideration. The favored parameter space, characterized by a compressed spectrum between bino, wino and stau, with the stop being around 1 TeV, may be covered in the near future LHC searches.

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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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