Self-consistent calculation of the Sommerfeld enhancement
Author(s)Blum, Kfir; Sato, Ryosuke; Slatyer, Tracy Robyn
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A calculation of the Sommerfeld enhancement is presented and applied to the problem of s-wave non-relativistic dark matter annihilation. The difference from previous computations in the literature is that the effect of the underlying short-range scattering process is consistently included together with the long-range force in the effective QM Schrödinger problem. Our procedure satisfies partial-wave unitarity where previous calculations fail. We provide analytic results for some potentials of phenomenological relevance.
DepartmentMassachusetts Institute of Technology. Center for Theoretical Physics
Journal of Cosmology and Astroparticle Physics
Institute of Physics Publishing (IOP)/SISSA
Blum, Kfir, Ryosuke Sato, and Tracy R. Slatyer. “Self-Consistent Calculation of the Sommerfeld Enhancement.” Journal of Cosmology and Astroparticle Physics 2016, no. 06 (June 8, 2016): 021–021.
Final published version