Triple product correlations in top squark decays

Abstract

We propose several T-odd asymmetries in the decay chains of the top squarks ${\tilde{t}}_m\to t{\tilde{\chi }}_k^0$ and $t\to b{W}^{+}\to bl\nu$ and ${\tilde{\chi }}_k^0\to l^{\pm }{\tilde{l}}_n^{\mp }\to l^{\pm }{l}^{\mp }{\tilde{\chi }}_1^0$, for $l=e,\mu ,\tau$. We calculate the asymmetries within the Minimal Supersymmetric Standard Model with complex parameters $M_1$, $\mu$ and $A_t$. We give the analytic formulae for the decay distributions. We present numerical results for the asymmetries and estimate the event rates necessary to observe them. The largest T-odd asymmetry can be as large as 40%.

26 pages, 5 figures; misprints corrected; reference added

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• Proposals for Bottom Quark/Squark Renormalization in the Complex MSSM
• Heavy Scalar Top Quark Decays in the Complex MSSM: A Full One-Loop Analysis
• Measurement of CP Violation in Stop Cascade Decays at the LHC
• A T-odd observable sensitive to CP violating phases in squark decay
• Probing SUSY CP Violation in Two-Body Stop Decays at the LHC
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• CP Violation in Supersymmetric Theories: stop2 -> stop1 tau- tau+
• CP observables with spin-spin correlations in chargino production
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• Testing the CP-violating MSSM in stau decays at the LHC and ILC
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• Momentum reconstruction at the LHC for probing CP-violation in the stop sector
• CP-violation in SUSY cascades at the LHC
• Interference Effects, Time Reversal Violation and Search for New Physics in Hadronic Weak Decays
• Effects of CP-violating phases in supersymmetry