Chargino contributions in light of recent ${\epsilon }^{\prime }/\epsilon$

Abstract

Recently, the standard model prediction of ${\epsilon }^{\prime }/\epsilon$ was improved, and a discrepancy from the experimental results was reported at the $2.9\sigma$ level. We study the chargino contributions to $Z$ penguin especially with the vacuum stability constraint. The vacuum decay rate is investigated, and it is shown that the discrepancy can be explained if superparticles are lighter than 4-6 TeV. Correlations with $\mathcal{B}(K_L\to {\pi }^0\nu \bar{\nu })$ and other experimental constraints are also discussed.

arXiv comment12 pages, 3 figures

References in corpus (26)

• Big-Bang Nucleosynthesis
• Renormalization Group Evolution of the Standard Model Dimension Six Operators III: Gauge Coupling Dependence and Phenomenology
• Renormalization Group Evolution of the Standard Model Dimension Six Operators II: Yukawa Dependence
• Renormalization Group Evolution of the Standard Model Dimension Six Operators I: Formalism and lambda Dependence
• SUSY Les Houches Accord: Interfacing SUSY Spectrum Calculators, Decay Packages, and Event Generators
• CosmoTransitions: Computing Cosmological Phase Transition Temperatures and Bubble Profiles with Multiple Fields
• SUSY Les Houches Accord 2
• A precision measurement of direct CP violation in the decay of neutral kaons into two pions
• Stability Bounds on Flavor-Violating Trilinear Soft Terms in the MSSM
• Measurements of Direct CP Violation, CPT Symmetry, and Other Parameters in the Neutral Kaon System
• $K\to \pi \pi$ $\Delta I=3/2$ decay amplitude in the continuum limit
• Connections between epsilon'/epsilon and Rare Kaon Decays in Supersymmetry
• Quark flavour observables in the Littlest Higgs model with T-parity after LHC Run 1
• epsilon'/epsilon and Rare K and B Decays in the MSSM
• Supersymmetric contributions to rare kaon decays: beyond the single mass-insertion approximation
• $K\to \pi \nu \bar{\nu }$ and ${\epsilon }^{\prime }/\epsilon$ in Simplified New Physics Models
• Improved anatomy of epsilon'/epsilon in the Standard Model
• Supersymmetric Explanation of CP Violation in $K\to \pi \pi$ Decays
• Singularity-free Next-to-leading Order $\Delta S=1$ Renormalization Group Evolution and ${\epsilon }_K^{\prime }/{\epsilon }_K$ in the Standard Model and Beyond
• New Physics Patterns in ${\epsilon }^{\prime }/\epsilon$ and ${\epsilon }_K$ with Implications for Rare Kaon Decays and $\Delta M_K$
• B_s -> phi rho^0 and B_s -> phi pi^0 as a handle on isospin-violating New Physics
• Metastability bounds on flavour-violating trilinear soft terms in the MSSM
• New Constraint on Squark Flavor Mixing from 199Hg Electric Dipole Moment
• Renormalization-Scale Uncertainty in the Decay Rate of False Vacuum
• 331 Models Facing the Tensions in $\Delta F=2$ Processes with the Impact on ${\epsilon }^{\prime }/\epsilon$, $B_s\to {\mu }^{+}{\mu }^{-}$ and $B\to K^{\ast }{\mu }^{+}{\mu }^{-}$
• $K_L^0\to {\pi }^0\nu \bar{\nu }$ at KOTO

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• Direct CP violation in $K^0\to \pi \pi$: Standard Model Status
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• Gluino-mediated electroweak penguin with flavor-violating trilinear couplings
• ${\epsilon }^{\prime }/\epsilon$ from charged-Higgs-induced gluonic dipole operators
• Correlating ${\epsilon }^{\prime }/\epsilon$ to hadronic $B$ decays via $U(2{)}^3$ flavour symmetry
• Anatomy of ${\epsilon }^{\prime }/\epsilon$ beyond the Standard Model
• Isospin-Violating Contributions to ${\epsilon }^{\prime }/\epsilon$
• $K\to \pi \nu \overline{\nu }$ in the MSSM in Light of the ${\epsilon }_K^{\prime }/{\epsilon }_K$ Anomaly
• Left-handed color-sextet diquark in the Kaon system
• BSM Hadronic Matrix Elements for ${\epsilon }^{\prime }/\epsilon$ and $K\to \pi \pi$ Decays in the Dual QCD Approach
• ${\epsilon }_K^{\prime }/{\epsilon }_K$ and $K\to \pi \nu \bar{\nu }$ in a two-Higgs doublet model
• Simultaneous interpretation of $K$ and $B$ anomalies in terms of chiral-flavorful vectors
• ${\epsilon }^{\prime }/\epsilon$ Anomaly and Neutron EDM in $SU(2{)}_L\times SU(2{)}_R\times U(1{)}_{B-L}$ model with Charge Symmetry
• The direct CP violation in a general two Higgs doublet model
• ${\epsilon }_K$ and ${\epsilon }^{\prime }/\epsilon$ in a diquark model
• Probing SUSY effects in $K_S^0\to {\mu }^{+}{\mu }^{-}$
• Direct CP Violation in Cabibbo-Favored Charmed Meson Decays and ${\epsilon }^{\prime }/\epsilon$ in $SU(2{)}_L\times SU(2{)}_R\times U(1{)}_{B-L}$ Model
• Updated Standard Model Prediction for ${\epsilon }^{\prime }/\epsilon$
• Top-quark flavor-changing $tqZ$ couplings and rare $\Delta F=1$ processes
• Exploring the flavour structure of the high-scale MSSM