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

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...

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Bibliographic Details
Published inarXiv.org
Main Authors Qing-Peng Qiao, Xu, Bin
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 06.10.2012
Subjects
Dark matter
Luminosity
Mathematical models
Pair production
Parity
Standard model (particle physics)
Superconducting supercolliders
Weakly interacting massive particles
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Summary: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.
ISSN:2331-8422