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arXiv · hep-ph/0012073

Anti-B-B Mixing Constrains Topcolor-Assisted Technicolor

Gustavo Burdman·Kenneth Lane·Tonguc Rador
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Abstract

We argue that extended technicolor augmented with topcolor requires that all mixing between the third and the first two quark generations resides in the mixing matrix of left-handed down quarks. Then, the anti-B_d--B_d mixing that occurs in topcolor models constrains the coloron and Z' boson masses to be greater than about 5 TeV. This implies fine tuning of the topcolor couplings to better than 1%.

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Gustavo Burdman, Kenneth Lane, Tonguc Rador. 2001-06-26. Anti-B-B Mixing Constrains Topcolor-Assisted Technicolor. https://doi.org/10.1016/s0370-2693(01)00587-1

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