Published March 15, 2013
| Version Published + Submitted
Journal Article
Open
Resonant Dark Forces and Small-Scale Structure
Creators
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1.
University of Michigan–Ann Arbor
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2.
Institute for Advanced Study
Abstract
A dark force can impact the cosmological history of dark matter (DM), both explaining observed cores in dwarf galaxies and setting the DM relic density through annihilation to dark force bosons. For GeV–TeV DM mass, DM self-scattering in dwarf galaxy halos exhibits quantum mechanical resonances, analogous to a Sommerfeld enhancement for annihilation. We show that a simple model of DM with a dark force can accommodate all astrophysical bounds on self-interactions in halos and explain the observed relic density, through a single coupling constant.
Additional Information
© 2013 American Physical Society. (Received 19 October 2012; published 12 March 2013) We thank the Aspen Center for Physics and the Institute for Advanced Study where part of this work was done. The work of S. T., H.-B. Y., and K. M. Z. is supported by the DoE under Contract No. de-sc0007859. The work of H.-B. Y. and K. M. Z. is also supported by NASA Astrophysics Theory Grant No. NNX11AI17G and NSF CAREER Award No. PHY 1049896.Attached Files
Published - PhysRevLett.110.111301.pdf
Submitted - 1210.0900.pdf
Files
1210.0900.pdf
Additional details
Additional titles
- Alternative title
- Resonant Dark Forces and Small Scale Structure
Identifiers
- Eprint ID
- 96404
- Resolver ID
- CaltechAUTHORS:20190613-164148167
Related works
- Describes
- https://arxiv.org/abs/1210.0900 (URL)
Funding
- Department of Energy (DOE)
- DE-SC0007859
- NASA
- NNX11AI17G
- NSF
- PHY-1049896
Dates
- Created
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2019-06-17Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field
Caltech Custom Metadata
- Caltech groups
- Physics Department