The flavor-changing top-charm quark production in the littlest Higgs model with T parity at the ILC

Abstract

With high luminosity and energy at the ILC and clean SM backgrounds, the top-charm production at the ILC should have powerful potential to probe new physics. The littlest Higgs model with discrete symmetry named "T-parity"(LHT) is one of the most promising new physics models. In this paper, we study the FC processes $e^{+}{e}^{-}(\gamma \gamma )\to t\bar{c}$ at the ILC in the LHT model. Our study shows that the LHT model can make a significant contribution to these processes. When the masses of mirror quarks become large, these two processes are accessible at the ILC. So the top-charm production at the ILC provides a unique way to study the properties of the FC couplings in the LHT model and furthermore test the model.

arXiv comment19 pages, 5 figures

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Cited by in corpus (13)

• Physics at the e+ e- Linear Collider
• Top quark forward-backward asymmetry, FCNC decays and like-sign pair production as a joint probe of new physics
• R-parity violating effects in top quark FCNC productions at LHC
• Higgs-pair Production and Decay in Simplest Little Higgs Model
• Higgs mediated flavor violating top quark decays t --> u_i H, u_i gamma, u_i gamma gamma, and the process gamma gamma --> t c in effective theories
• Signatures of NP models in top FCNC decay t --> c(u) l+ l-
• Top quark rare three-body decays in the littlest Higgs model with T-parity
• Probing lepton flavor violation signal via e+ e- (gamma gamma) ---> l(i) anti-l(j) in the littlest Higgs model with T-parity at the ILC
• On-shell $WW\gamma$ vertex in the T-Parity and non T-Parity Littlest Higgs model
• R_b Constraints on Littlest Higgs Model with T-parity
• The flavor-changing bottom-strange quark production in the littlest Higgs model with T parity at the ILC
• Lepton flavor violating signals of the LHT model via e^{+}e^{-} and γγcollisions at the ILC
• The flavor-changing top-charm associated productions at ILC in littlest Higgs model with T parity