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Self-consistent calculation of the Sommerfeld enhancement

Author(s)
Blum, Kfir; Sato, Ryosuke; Slatyer, Tracy Robyn
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Abstract
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.
Date issued
2016-06
URI
http://hdl.handle.net/1721.1/108602
Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Journal
Journal of Cosmology and Astroparticle Physics
Publisher
Institute of Physics Publishing (IOP)/SISSA
Citation
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.
Version: Final published version
ISSN
1475-7516

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