The rare top decay $t\to cg$ in topcolor assisted technicolor models

Abstract

In the framework of topcolor-assisted technicolor(TC2) models, we calculate the contributions of flavor changing scalar couplings involved the neutral top-pion ${\pi }_t^0$ and top-Higgs $h_t^0$ to the branching ratio $B_r(t⟶cg)$. We find that the value of $B_r(t⟶cg)$ can reach $1\times 10^{-3}$ with reasonable values of the parameters in TC2 models, which may be testable in the future experiments.

to be published in Phys. Rev. D, several references added

References in corpus (4)

• Top flavour-changing neutral coupling signals at a linear collider
• Production and decay of the neutral top-pion in high energy $e^{+}{e}^{-}$ colliders
• The flavor-changing rare top decays $t\to cVV$ in topcolor-assisted technicolor theory
• Detecting top-Higgs at high energy $e^{+}{e}^{-}$ colliders

Cited by in corpus (20)

• SUSY-induced FCNC top-quark processes at the Large Hadron Collider
• The Hunt for New Physics at the Large Hadron Collider
• Review of Top Quark Physics
• The rare top quark decays $t\to cV$ in the topcolor-assisted technicolor model
• New Physics effects in the flavor-changing neutral couplings of the Top quark
• Top-quark FCNC Productions at LHC in Topcolor-assisted Technicolor Model
• Rare Decay of the Top t->c l lbar and Single Top Production at International Linear Collider
• Flavor changing t -> c l_1^- l_2^+ decay in the general two Higgs doublet model
• The process $e^{+}{e}^{-}\to \bar{t}c$ in topcolor-assisted technicolor models
• Top-Quark FCNC Decay t->cgg in Topcolor-assisted Technicolor Model
• Production of the top-pions at the THERA collider based $\gamma p$ collisions
• Top quark rare three-body decays in the littlest Higgs model with T-parity
• Neutral top-pion and the rare top decays $t\to c{l}_i{l}_j$
• Rare three-body decay t -> c h gamma in the standard model and the two-Higgs doublet model
• Flavor changing scalar couplings and $t\gamma (Z)$ production at hadron colliders
• The anomalous top quark coupling tqg and tW production at the LHC
• Lepton flavor violating signals of the neutral top-pion in future lepton colliders
• The flavor-changing bottom-strange quark production in the littlest Higgs model with T parity at the ILC
• Heavy quarkonium production through the top quark rare decays via the channels involving flavor changing neutral currents
• The single t-quark productions via the flavor-changing processes in the topcolor-assisted technicolor model at the hadron colliders