Future detectability of a pseudoscalar mediator dark matter model

T. Abe, M. Fujiwara, J. Hisano, Y. Shoji

研究成果: ジャーナルへの寄稿会議記事査読

1 被引用数 (Scopus)

抄録

We investigate the maximum value of the spin-independent cross section in a dark matter (DM) model called the two-Higgs doublet model + a (THDM+a). This model can explain the observed DM energy density while evading the current strict bound from the DM direct detection experiment because the predicted cross section at the tree-level is highly suppressed by the momentum transfer. On the other hand, the loop induced scattering effects are predicted without momentum suppression and might be detectable in the future DM direct detection experiments. The predicted cross section strongly depends on the scalar quartic couplings. We derive the theoretical constraints on these parameters by studying the stability of the electroweak vacuum, and the condition for the potential bounded from below. Considering these constraints, we find that the maximum value of the predicted cross section is larger than the prospects of the LZ and XENONnT experiments and this model has the potential to explain the DM direct detection signal which might be obtained near future.

本文言語英語
論文番号012012
ジャーナルJournal of Physics: Conference Series
1468
1
DOI
出版ステータス出版済み - 2020/03/20
イベント16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019 - Toyama, 日本
継続期間: 2019/09/092019/09/13

ASJC Scopus 主題領域

  • 物理学および天文学一般

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