The process $e^{+}e^{-}\to \bar{t}c$ in topcolor-assisted technicolor models

Details The process $e^{+}e^{-}\to \bar{t}c$ in topcolor-assisted technicolor models The process $e^{+}e^{-}\to \bar{t}c$ in topcolor-assisted technicolor models

2001-11-23

arxiv.org/abs/hep-ph/0111297v1

Phys.Lett. B525 (2002) 301-307

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex files, 15 pages and 6 figures

Scientific paper

10.1016/S0370-2693(01)01459-9

We consider the flavor changing neutral current(FCNC) process $e^{+}e^{-}\to\bar{t}c$(or $t\bar{c}$) in the context of topcolor-assisted technicolor(TC2) models. We find that the contributions of charged scalars (technipions and top-pions) and topcolor gauge bosons are negligibly small. The neutral scalars (top-pion $\pi_{t}^{0}$ and top-Higgs $h_{t}^{0}$) can give significant contributions to this process. With reasonable values of the parameters in TC2 models, there will be several tens of the observable $\bar{t}c$ events to be generated in the future $e^{+}e^{-}$ linear colliders.

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