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arXiv · 1307.5740

Detecting interactions between dark matter and photons at high energy $e^+e^-$ colliders

Zhao-Huan Yu·Qi-Shu Yan·Peng-Fei Yin
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Abstract

We investigate the sensitivity to the effective operators describing interactions between dark matter particles and photons at future high energy $e^+e^-$ colliders via the $\gamma+ \slashed{E}$ channel. Such operators could be useful to interpret the potential gamma-ray line signature observed by the Fermi-LAT. We find that these operators can be further tested at $e^+ e^-$ colliders by using either unpolarized or polarized beams. We also derive a general unitarity condition for $2 \to n$ processes and apply it to the dark matter production process $e^+e^-\to\chi\chi\gamma$.

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Zhao-Huan Yu, Qi-Shu Yan, Peng-Fei Yin. 2013-07-22. Detecting interactions between dark matter and photons at high energy $e^+e^-$ colliders. https://doi.org/10.1103/physrevd.88.075015

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