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arXiv · 1906.06864

Role of Future Lepton Colliders for Fermionic Z-portal Dark Matter

Dilip Kumar Ghosh·Taisuke Katayose·Shigeki Matsumoto·Ipsita Saha·Satoshi Shirai·Tomohiko Tanabe
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Abstract

The fermionic Z-portal dark matter model suffers from severe constraints from direct detection experiments. However, a narrow parameter space around the Z-funnel region is beyond the reach due to the resonance annihilation. In this paper, we provide an intriguing collider prospect for probing the Z-funnel dark matter mass range at the future lepton colliders including the beam polarization feature. We have done a comprehensive analysis for mono-photon signal at the colliders for such a dark matter. A realistic estimation for the 90% C.L. constraints with the systematic beam uncertainties has also been provided.

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Dilip Kumar Ghosh, Taisuke Katayose, Shigeki Matsumoto, Ipsita Saha, Satoshi Shirai, Tomohiko Tanabe. 2019-06-17. Role of Future Lepton Colliders for Fermionic Z-portal Dark Matter. https://doi.org/10.1103/physrevd.101.015007

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