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Mono-X signal and two component dark matter: new distinction criteria

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arxiv 2211.10749 v2 pith:LK6RGXC4 submitted 2022-11-19 hep-ph

classification hep-ph
keywords componentscriteriadarkidentifymattermono-xsignalsuitable
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

The identification and isolation of two WIMP dark matter (DM) components at colliders is of wide interest on the one hand but extremely challenging on the other, especially when the dominant signal of both DM components is of the mono-X type ($X=\gamma, Z, H$). After emphasizing that an $e^+e^-$ collider is more suitable for this goal, we first identify the theoretical principles that govern the occurrence of two peaks in missing energy (ME) distribution, in a double-DM scenario. We then identify a variable that rather spectacularly elicits the double-peaking behaviour, namely, the plot of bin-wise statistical significance ($S/\sqrt{B}$) against ME. Using Gaussian fits of the histograms, we apply a set of criteria developed by us, to illustrate the above points numerically for suitable benchmarks.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Prospecting bipartite Dark Matter through Gravitational Waves

    hep-ph 2024-12 conditional novelty 6.0 of 10

    A two-component dark matter model with an inert triplet scalar and a singlet fermion can explain the relic abundance while producing a strong electroweak phase transition and gravitational wave signals detectable by L...

  2. FIMPs in a two-component dark matter model with $Z_2 \times Z_4$ symmetry

    hep-ph 2026-02 conditional novelty 5.0 of 10

    In this two-component dark matter model, freeze-in works with masses up to 3 TeV only if the scalar portal coupling is as small as 10^-25, far below usual FIMP values.

  3. Exploring two component doublet dark matter

    hep-ph 2025-05 conditional novelty 5.0 of 10

    A two-component model with an inert scalar doublet and a pseudo-Dirac fermion doublet can match Planck relic density and direct and indirect limits in sub-TeV mass regions, and a type-II seesaw triplet can also genera...

  4. Probing ALP-portal fermionic dark matter at the $e^+e^-$ colliders

    hep-ph 2025-05 conditional novelty 5.0 of 10

    A 1 TeV ILC with polarized beams could discover GeV-scale ALP-portal dark matter through mono-photon plus missing energy at 7.6 sigma and measure the ALP-photon coupling to about 1%.

  5. A two-component dark matter model with $Z_2 \times Z_4$ symmetry

    hep-ph 2025-04 conditional novelty 5.0 of 10

    A two-component dark matter model with Z2 x Z4 symmetry is built, and scans show the fermion relies on forbidden channels when lightest while direct detection gives the strongest constraints.

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