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- W4296064105 abstract "We study an asymmetric dark matter model with self-interacting dark matter consisting of a Dirac fermion $chi$ coupled to a scalar or vector mediator, such that the reaction $chi + chi to chi + chi$ is well described by perturbation theory. We compute the scattering cross section $sigma$, the transfer cross section $sigma_T$, and the viscosity cross section $sigma_V$ for this reaction. As one part of our study, we give analytic and numerical comparisons of results obtained with the inclusion of both $t$-channel and $u$-channel exchanges and results obtained in an approximation that has often been used in the literature that includes only the $t$-channel contribution. The velocity dependences of these cross sections are studied in detail and shown to be in accord with observational data." @default.
- W4296064105 created "2022-09-17" @default.
- W4296064105 creator A5040591720 @default.
- W4296064105 creator A5085941621 @default.
- W4296064105 date "2022-09-16" @default.
- W4296064105 modified "2023-10-18" @default.
- W4296064105 title "Cross section calculations in theories of self-interacting dark matter" @default.
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- W4296064105 doi "https://doi.org/10.1103/physrevd.106.063013" @default.
- W4296064105 hasPublicationYear "2022" @default.
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