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The Strange Physics of Dark Baryons

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arxiv 2111.12712 v2 pith:AFJG455Y submitted 2021-11-24 hep-ph astro-ph.COhep-ex

The Strange Physics of Dark Baryons

classification hep-ph astro-ph.COhep-ex
keywords darkdecayshyperonbaryonsstrangeanomalyastrophysicalasymmetry
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Dark sector particles at the GeV scale carrying baryon number provide an attractive framework for understanding the origin of dark matter and the matter-antimatter asymmetry of the universe. We demonstrate that dark decays of hadronic states containing strange quarks -- hyperons -- offer excellent prospects for discovering such dark baryons. Building up on novel calculations of the matrix elements relevant for hyperon dark decays, and in view of various collider, flavor, and astrophysical constraints, we determine the expected rates at hyperon factories like BESIII and LHCb. We also highlight the interesting theoretical connections of hyperon dark decays to the neutron lifetime anomaly and Mesogenesis.

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Cited by 5 Pith papers

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

  1. Light-cone sum rules with $B$-meson distribution amplitudes for the $B\to p$ form factors in $B$-mesogenesis models

    hep-ph 2026-03 conditional novelty 7.0

    New light-cone sum-rule form factors predict B+→p + dark-antiproton rates and lower limits showing that Belle II/BaBar bounds must reach 10⁻⁸–10⁻⁷ for a decisive test of B-mesogenesis.

  2. Constraints on the mass of the dark antibaryon using $B_d\rightarrow \Lambda \psi_{DS}$ channel in light cone QCD

    hep-ph 2026-05 unverdicted novelty 5.0

    The mass ranges for the dark antibaryon ψ_DS are determined by deriving the B_d → Λ ψ_DS branching fraction via light-cone QCD sum rules and comparing it to BaBar and Belle experimental bounds.

  3. Constraints on the mass of the dark antibaryon using $B_d\rightarrow \Lambda \psi_{DS}$ channel in light cone QCD

    hep-ph 2026-05 conditional novelty 5.0

    A twist-6 light-cone QCD sum-rule calculation of B_d → Λ + dark antibaryon excludes dark masses around 2.8–3.6 GeV and leaves a surviving window at 4.108–4.164 GeV near the kinematic endpoint.

  4. Search for dark sector and rare decays at BESIII

    hep-ex 2026-04 unverdicted novelty 4.0

    BESIII presents experimental searches for sub-GeV dark matter via invisible decays, dark baryons, light vector bosons, and baryon/lepton-number-violating processes in charmonium and hyperon decays.

  5. Flavor phenomenology of light dark particles

    hep-ph 2026-06 unverdicted novelty 2.0

    Review surveying limits and prospects for flavor-violating decays of light axion-like particles, highlighting complementarity of lab, astro, and cosmo probes up to 10^12 GeV scales.