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MeV to multi-TeV thermal WIMPs: most conservative limits

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arxiv 2212.09795 v2 pith:PC6VSQUX submitted 2022-12-19 hep-ph astro-ph.HE

Koushik Dutta , Avirup Ghosh , Arpan Kar , Biswarup Mukhopadhyaya This is my paper
classification hep-phastro-ph.HE
keywords conservativelanglelimitsmassneutrinosparticlerangerangle
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abstract

We consider a weakly interacting massive particle (WIMP) dark matter (DM) annihilating into all possible Standard Model (SM) particle pairs, including the SM neutrinos, via $s$-wave processes and derive the branching ratio independent upper limit on the total annihilation cross-section $\langle \sigma v \rangle$ using the data of CMB, gamma-ray, cosmic-ray and several neutrino observations. For conservative choices of all relevant astrophysical parameters, we obtain upper limits of $10^{-23}-10^{-25}\,{\rm cm}^3{\rm s}^{-1}$ on the total $\langle \sigma v \rangle$ for the WIMP mass range $10\,{\rm MeV}-100\,{\rm TeV}$, thus making the entire mass range consistent with the observed relic density. An important input that goes into our analysis is the assumption that thermal WIMPs can have significant coupling to the SM neutrinos.

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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. Bounds and detection of MeV-scale dark matter annihilation to neutrinos

    hep-ph 2025-06 conditional novelty 6.0 of 10

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  3. Reviving $Z^\prime$ Portal Dark Matter with Conversion Mechanism

    hep-ph 2025-12 conditional novelty 4.0 of 10

    In a U(1)_{B-L} Z' portal model with two nearly degenerate dark fermions, the conversion mechanism can produce the observed dark matter relic density while evading current collider and direct-detection constraints.

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