T Violation Induced by Supersymmetry in t\bar{t} and W^+W^- Physics

Abstract

T-odd correlations of polarizations and momenta provide a promising testing ground for new physics beyond the standard model. We estimate the contribution of the minimal supersymmetric extension of the standard model to two such observables: in the production of $t\bar{t}$, we look for a term proportional to \mbox{${\mathbf{J}}_t\cdot ({\mathbf{p}}_q\times {\mathbf{p}}_t)$}-where {\bf J}${}_t$ is the polarization of the $t$ quark and {\bf p} ${}_{q,t}$ are the momenta of the initial and final particles-and find that it is of the order of $10^{-1}\times ({\alpha }_s/\pi )$. In the production of $W^{+}{W}^{-}$, we look for a term proportional to \mbox{${\mathbf{E}}_W\cdot ({\mathbf{p}}_q\times {\mathbf{p}}_W)({\mathbf{p}}_q\cdot {\mathbf{E}}_W)$}-where {\bf E}${}_W$ is the transverse polarization of W- to find that it can be as large as $10^{-1}\times ({\alpha }_w/\pi )$.

16 pages (8 figures, not included)

References in corpus (2)

• Bounds on Microscopic Physics from P and T Violation in Atoms and Molecules
• Testing Supersymmetry by Means of Time Reversal Invariance

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• CP-violating asymmetries in top-quark production and decay in $e^{+}{e}^{-}$ annihilation within the MSSM
• CP-violating top quark couplings at future linear $e^{+}{e}^{-}$ colliders
• CP violation in the top-quark system through light squarks
• Tests of the Standard Model Using Muon Polarization Asymmetries in Kaon Decays