Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-01-22
Phys.Lett. B398 (1997) 298-304
Physics
High Energy Physics
High Energy Physics - Phenomenology
revised version, some new numerical results added
Scientific paper
We evaluate the supersymmetric (SUSY) electroweak corrections to the effect of parity nonconservation in $q {\bar q} \to t {\bar t}$ production at the Fermilab Tevatron predicted by the Minimal Supersymmetric Model (MSSM). We find that the parity nonconserving asymmetry from the SUSY electroweak and SUSY Yukawa loop corrections predicted by the minimal supergravity (mSUGRA) model and the MSSM models with scenarios motivated by current data is about one percent. It will be challenging to observe such a small asymmetry at the Tevatron with 10 fb^{-1} of luminosity. It could however be observable if both the top- and bottom-squarks are light and $\tan \beta$ is smaller than 1, though theses parameters are not favored by mSUGRA.
Li Chong Sheng
Oakes Robert J.
Yang Jin Min
Yuan C.--P.
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