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arXiv · 1810.08139

Probing pseudo Nambu-Goldstone boson dark matter at loop level

Koji Ishiwata·Takashi Toma
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Abstract

In the standard model extended by a single complex scalar boson with a softly broken global U(1) symmetry, a pseudo Nambu-Goldstone boson becomes a candidate for dark matter. In this paper, we discuss the direct detection of the pseudo Nambu-Goldstone boson dark matter. Since the tree-level amplitude for dark matter-nucleon scattering vanishes, higher order quantum corrections for the amplitude should be taken into account. We perform the calculation at the next-to-leading order in QCD in a systematic manner.

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Koji Ishiwata, Takashi Toma. 2018-10-18. Probing pseudo Nambu-Goldstone boson dark matter at loop level. https://doi.org/10.1007/jhep12(2018)089

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