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Direct Detection of the Wino- and Higgsino-like Neutralino Dark Matters at One-Loop Level

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arxiv hep-ph/0407168 v2 pith:4Y44LGDB submitted 2004-07-15 hep-ph

Junji Hisano , Shigeki Matsumoto , Mihoko M. Nojiri , Osamu Saito This is my paper
classification hep-ph
keywords tildecrosshiggsino-likelevelone-loopsectioncasesdark
verification ladder T0 review T1 audit T2 compute T3 formal
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The neutralino-nucleon (\tilde{\chi}^0-N) scattering is an important process for direct dark matter searches. In this paper we discuss one-loop contributions to the cross section in the wino-like and Higgsino-like LSP cases. The neutralino-nucleon scattering mediated by the Higgs \tilde{\chi}^0\tilde{\chi}^0 and Z\tilde{\chi}^0\tilde{\chi}^0 couplings at tree level is suppressed by the gaugino-Higgsino mixing at tree level when the neutralino is close to a weak eigenstate. The one-loop contribution to the cross section, generated by the gauge interaction, is not suppressed by any SUSY particle mass or mixing in the wino- and Higgsino-like LSP cases. It may significantly alter the total cross section when \sigma_{\tilde{\chi}^0 N}\sim 10^{-45} cm^2 or less.

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Cited by 3 Pith papers

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

  1. Unveiling the Vanishing Higgsino-Nucleon Scattering in the MSSM at Next-to-Leading Order

    hep-ph 2026-07 conditional novelty 6.0 of 10

    Near the stop-top kinematic threshold, next-to-leading-order corrections cancel the leading Higgsino-nucleon scattering amplitude, pushing the spin-independent cross section below the neutrino floor in parts of the MS...

  2. Higgs boson mass and thermal wino dark matter from Starobinsky supergravity with the MSSM

    hep-ph 2026-07 conditional novelty 6.0 of 10

    Starobinsky supergravity coupled to the MSSM links the CMB inflationary scale to the Higgs boson mass (~125 GeV) and predicts thermal wino dark matter at ~3 TeV, testable at future colliders and direct detection experiments.

  3. Minimal Dark Matter in the sky: updated Indirect Detection probes

    hep-ph 2025-07 conditional novelty 6.0 of 10

    Fermi-LAT data exclude the lower end of the Minimal Dark Matter 5-plet thermal mass window, while about 600 hours of CTAO observations of Ursa Major II could probe the central mass.

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