Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-09-08
Phys.Lett. B424 (1998) 76-84
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, revised version, accepted by Phys. Lett. B
Scientific paper
10.1016/S0370-2693(98)00139-7
In the supersymmetry (SUSY) models, because of the mass difference between the left- and right-top squarks, the supersymmetric QCD interactions can generate parity violating effects in the production of $ t \bar t$ pairs. We show that SUSY QCD radiative corrections to the parity violating asymmetry in the production rates of the left- and right-handed top quarks via the $q \bar q \ra t \bar t$ process can reach about 3% at the Fermilab Tevatron with $\sqrt{s}=2$ TeV. This could be observable with an integrated luminosity larger than $2 fb^{-1}$. We also show that in these models the SUSY QCD radiative corrections to the $t \bar t$ production rate are small unless gluinos are very light, of the order of 1 GeV.
Li Chong Sheng
Yuan C.--P.
Zhou Hong-Yi
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