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arXiv · hep-ph/9405224

Singlet quarks beyond the top at the Tevatron?

V. Barger·R. J. N. Phillips
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Abstract

The first evidence for the top quark at the Tevatron may indicate a cross section higher than the QCD expectation. We consider the possibility that isosinglet heavy quarks may be contributing to the signal and discuss ways of testing this possibility. For example, a charge $\case2/3$ singlet quark, approximately degenerate and mixing with the top quark, would effectively double the standard top signals. A charge $-\case1/3$ singlet quark mixing with the bottom quark would not affect top signals but would generate excess $Z+{}$multijet events with a $b$-tag.

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V. Barger, R. J. N. Phillips. 1994-05-04. Singlet quarks beyond the top at the Tevatron?. https://doi.org/10.1016/0370-2693(94)90386-7

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