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Exact Cross Sections for the Neutralino WIMP Pair-Annihilation

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arxiv hep-ph/0202009 v2 pith:IJDQXOQJ submitted 2002-02-02 hep-ph

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

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We derive a full set of exact, analytic expressions for the annihilation of the lightest neutralino pairs into all two-body tree-level final states in the framework of minimal supersymmetry. We make no simplifying assumptions about the neutralino nor about sfermion masses and mixings other than the absence of explicit CP--violating terms. The expressions should be particularly useful in computing the neutralino WIMP relic abundance without the usual approximation of partial wave expansion.

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Cited by 2 Pith papers

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

  1. Singlet-doublet dark matter revisited

    hep-ph 2025-05 conditional novelty 5.0 of 10

    The singlet-doublet dark matter model now passes direct detection limits only with small Yukawa couplings or near blind spots, with coannihilation and a compressed spectrum needed to match the observed relic density.

  2. Constraints on Asymmetric Dark Matter Self Annihilation Cross Sections

    hep-ph 2025-05 conditional novelty 5.0 of 10

    In asymmetric dark matter with self-annihilation, the shear-dominated universe permits a higher self-annihilation cross section and a lower wino mass limit than standard cosmology, while the Gauss-Bonnet braneworld do...

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