Dark matter pair production at the ILC in the Littlest Higgs model with T-parity

Qing-Peng Qiao; Bin Xu

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arXiv · 1105.3555

Dark matter pair production at the ILC in the Littlest Higgs model with T-parity

Qing-Peng Qiao·Bin Xu

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Abstract

In the Littlest Higgs model with T-parity, the heavy photon ($A_{H}$) is supposed to be a possible dark matter (DM) candidate. A direct proof of validity of the model is to produce the heavy photon at accelerator. In this paper, we study the production rate of $ e^ + e^ - \to A_{H}A_{H}$ at the international $e^ + e^ -$ linear collider (ILC) in the Littlest Higgs model with T-parity and show the distributions of the transverse momenta of $A_{H}$. The numerical results indicate that the heavy photon production rate could reach the level of $10^{-1} fb$ at some parameter space, so it can be a good chance to observe the heavy photon via the pair production process with the high luminosity at the ILC (500 $fb^{-1}$) . We know that DM is composed of weakly-interacting massive particles (WIMPs), so the interactions with standard model (SM) particles are weakness, how to detect heavy photon at a collider and distinguish it from other DM candidates are simply discussed in the final sector of the paper.

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Qing-Peng Qiao, Bin Xu. 2011-05-18. Dark matter pair production at the ILC in the Littlest Higgs model with T-parity. https://arxiv.org/abs/1105.3555

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