(B)over-bar-B mixing constrains topcolor-assisted technicolor
Files
First author draft
Date
2001-08-09
Authors
Burdman, Gustavo
Lane, Kenneth D.
Rador, Tonguç
Version
First author draft
OA Version
Citation
G. Burdman, K. Lane, T. Rador. 2001. "(B)over-bar-B mixing constrains topcolor-assisted technicolor." PHYSICS LETTERS B, Volume 514, Issue 1-2, pp. 41 - 46 (6). https://doi.org/10.1016/S0370-2693(01)00587-1
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 B̄d – Bd 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%.
Description
License
Copyright © 2001 Elsevier Science B.V. All rights reserved.