Supersymmetric explanation of the muon g-2 anomaly with and without stable neutralino

Abstract

In this paper we explore the possibility of explaining the muon $g-2$ anomaly in various types of supersymmetric extensions of the Standard Model. In particular, we investigate and compare the phenomenological constraints in the MSSM with stable neutralino and the other types of scenarios where the neutralino is unstable. For the latter case we study the Gauge Mediated SUSY Breaking (GMSB) scenario with very light gravitino and the $UDD$-type R-Parity Violating (RPV) scenario. In the MSSM with stable neutralino, the parameter region favoured by the $(g-2{)}_{\mu }$ is strongly constrained by the neutralino relic abundance and the dark matter direct detection experiments, as well as by the LHC searches in the lepton plus missing transverse energy channel. On the other hand, the scenarios without stable neutralino are free from the dark matter constraints, while the LHC constraints depend strongly on the decay of the neutralino. We find that in GMSB the entire parameter region favoured by the muon $g-2$ is already excluded if the Next Lightest SUSY Particle (NLSP) is the neutralino, while some regions are still allowed if the NLSP is stau. In the RPV scenario, the LHC constraints are much weaker than the other scenarios and a wide region of the parameter space is still open for the muon $g-2$.

Published in JHEP; 37 pages, 8 figures, 10 tables

References in corpus (22)

• An Introduction to PYTHIA 8.2
• The $g-2$ of charged leptons, $\alpha (M_Z^2)$ and the hyperfine splitting of muonium
• Hadronic contribution to the muon anomalous magnetic moment to next-to-next-to-leading order
• General Gauge Mediation
• New physics explanations of $a_{\mu }$ in light of the FNAL muon $g-2$ measurement
• The muon $g$-2 and $\Delta \alpha$ connection
• Constraints on the two-pion contribution to hadronic vacuum polarization
• $(g-2{)}_{\mu }$, Lepton Flavour Violation and $Z$ Decays with Leptoquarks: Correlations and Future Prospects
• Non-universal gaugino masses from non-singlet F-terms in non-minimal unified models
• Hadronic light-by-light contribution to $(g-2{)}_{\mu }$ from lattice QCD: a complete calculation
• Supersymmetric Interpretation of the Muon $g-2$ Anomaly
• Consequences of chirally enhanced explanations of $(g-2{)}_{\mu }$ for $h\to \mu \mu$ and $Z\to \mu \mu$
• Tan(beta)-enhanced supersymmetric corrections to the anomalous magnetic moment of the muon
• Muon $g-2$ and $B$-anomalies from Dark Matter
• The new "MUON G-2" Result and Supersymmetry
• Explaining $g-2$ anomalies in two Higgs doublet model with vector-like leptons
• Wino-Higgsino dark matter in the MSSM from the $g-2$ anomaly
• Muon $g-2$ and Co-annihilating Dark Matter in the MSSM
• The Tiny (g-2) Muon Wobble from Small-$\mu$ Supersymmetry
• Improved $(g-2{)}_{\mu }$ Measurements and Wino/Higgsino Dark Matter
• $(g-2{)}_{\mu }$ and SUSY Dark Matter: Direct Detection and Collider Search Complementarity
• Constraining Light Gravitino Mass from Cosmic Microwave Background

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• The Muon Magnetic Moment and Physics Beyond the Standard Model
• Probing the muon (g-2) anomaly at the LHC in final states with two muons and two taus
• Slepton searches in the trilinear RPV SUSY scenarios at the HL-LHC and HE-LHC
• Prospects of Gluino searches in multi-lepton channels in the light of ongoing LHC RUN-III
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