SUSY-Induced CP Violation in $t$ Decays at $e^{-}{e}^{+}$ Colliders

Abstract

CP violation in the decays $t\to {\ell }^{+}\nu b$ and $\bar{t}\to {\ell }^{-}\bar{\nu }\bar{b}$ from the production process $e^-e^+ \to \ttbar$ is discussed. Since the asymmetry proposed as a measure of CP violation vanishes even at the one-loop level in the Standard Model (SM), it may be a useful tool to search for sources of CP violation outside of the SM. As an illustration the asymmetry has been computed within supersymmetric extensions of the SM. Prospects for its measurement at future high-energy linear colliders are discussed.

17 pages, corrected former postscript output mistakes

References in corpus (3)

• Using Back-Scattered Laser Beams to Detect CP Violation in the Neutral Higgs Sector
• CP Violation in the Decay of Neutral Higgs Boson into $t-\bar{t}$ or $W^{+}-W^{-}$
• CP Violation in $t\bar{t}$ Production at $e^{+}{e}^{-}$ Colliders

Cited by in corpus (24)

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• Optimal-Observable Analysis of the Angular and Energy Distributions for Top-Quark Decay Products at Polarized Linear Colliders
• CP-Violatiing Asymmetries in $e^+e^-\ra t\bar{t}$ with Longitudinally Polarized Elecrtons
• Neutral Higgs CP Violation at ${\mu }^{+}{\mu }^{-}$ colliders
• Energy Spectrum of Secondary Leptons in $e^{+}{e}^{-}\to t\bar{t}$ - Non-standard Interactions and CP Violation -
• CP Violation, Top Quarks and the Tevatron Upgrade
• The Decay Rate Asymmetry of the Top Quark
• CP-violating asymmetries in top-quark production and decay in $e^{+}{e}^{-}$ annihilation within the MSSM
• Probing Top-Quark Couplings at Polarized NLC
• Decay-lepton angular distribution in polarized $e^{+}{e}^{-}\to$ and $CP$-violating dipole couplings of the top quark
• CP-Violating Lepton-Energy Correlation in e\bar{e}\to t\bar{t}
• Simple decay-lepton asymmetries in polarized e+e- -> t tbar and CP-violating dipole couplings of the top quark
• A CP sensitive asymmetry in the three--body decay stop_1 -> b tau+ tau-sneutrino
• Triple product correlations in top squark decays
• CP violating angular asymmetries of b and bbar quarks in e+e- -> t tbar
• CP asymmetries in scalar bottom quark decays
• CP violation in the top-quark system through light squarks
• Probe of CP Violation in e+e- -> ttbar Near Threshold
• CP violating asymmetries of b quarks and leptons in e^+e^- \to t\bar t and supersymmetry (review)
• CP violation in the semileptonic top decay in two-Higgs doublet model
• Remark on CP-violating Polarization Asymmetry of tt-bar via Anomalous Couplings to gamma and Z