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arXiv · 0803.3011

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

Xuelei Wang·Huiling Jin·Yanju Zhang·Yanhui Xi
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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 $e^+e^-(γγ)\to t\bar{c}$ 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.

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Xuelei Wang, Huiling Jin, Yanju Zhang, Yanhui Xi. 2008-03-20. The flavor-changing top-charm quark production in the littlest Higgs model with T parity at the ILC. https://doi.org/10.1016/j.nuclphysb.2008.08.023

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