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arXiv · 0707.1339

Finding the Charge of the top quark in the Dilepton Channel

A. Beretvas·J. Antos·Y. C. Chen·Z. Gunay·V. Sorin·K. Tollefson·P. Bednar·S. Tokar·V. Boisvert·W. Hopkins·K. McFarland
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Abstract

There is a question about the identity of the top quark. Is it the top quark of the Standard Model (SM) with electric charge 2/3 or is it an exotic quark with charge -4/3? An exotic quark has been proposed by D. Chang et al.\cite{hep-ph/9810531, hep-ph/9805273}. This analysis will use the standard CDF run II dilepton sample. The key ingredients of this analysis are the correct pairing of the lepton and b-jet, the determination of the charge of the b-jet. The analysis proceeds by using a binomial distribution and is formulated so that rejecting one hypothesis means support for the other hypothesis.

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A. Beretvas, J. Antos, Y. C. Chen, Z. Gunay, V. Sorin, K. Tollefson, P. Bednar, S. Tokar, V. Boisvert, W. Hopkins, K. McFarland. 2007-07-09. Finding the Charge of the top quark in the Dilepton Channel. https://arxiv.org/abs/0707.1339

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