Probing Supersymmetry with Parity-Violating Electron Scattering

Abstract

We compute the one-loop supersymmetric (SUSY) contributions to the weak charges of the electron ($Q_W^e$), proton ($Q_W^p$), and cesium nucleus ($Q_W^{\mathrm{Cs}}$) in the Minimal Supersymmetric Standard Model (MSSM). Such contributions can generate several percent corrections to the corresponding Standard Model values. The magnitudes of the SUSY loop corrections to $Q_W^e$ and $Q_W^p$ are correlated over nearly all of the MSSM parameter space and result in an increase in the magnitudes of these weak charges. In contrast, the effects on $Q_W^{\mathrm{Cs}}$ are considerably smaller and are equally likely to increase or decrease its magnitude. Allowing for R-parity violation can lead to opposite sign relative shifts in $Q_W^e$ and $Q_W^p$, normalized to the corresponding Standard Model values. A comparison of $Q_W^p$ and $Q_W^e$ measurements could help distinguish between different SUSY scenarios.

Extended version of hep-ph/0205183 containing full details of the calculation and analysis. 30 pages, 10 figures

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• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.7 ppm
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Cited by in corpus (11)

• Low Energy Precision Test of Supersymmetry
• Low Energy Measurements of the Weak Mixing Angle
• The Weak Neutral Current
• The Weak Charge of the Proton and New Physics
• Doubly-Charged Scalars in the Type-II Seesaw Mechanism: Fundamental Symmetry Tests and High-Energy Searches
• Low Energy Probes of Physics Beyond the Standard Model
• Pion Leptonic Decays and Supersymmetry
• Searching for $Z^{\prime }$ bosons at the P2 experiment
• Slepton Discovery in Electroweak Cascade Decay
• Unparticle Searches Through Low Energy Parity Violating Asymmetry
• Future Directions in Parity Violation: From Quarks to the Cosmos