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  On the annual modulation signal in dark matter direct detection

Herrero-Garcia, J., Schwetz-Mangold, T., & Zupan, J. (2012). On the annual modulation signal in dark matter direct detection. Journal of Cosmology and Astroparticle Physics, 03: 005. Retrieved from http://arxiv.org/abs/1112.1627.

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arXiv_1112.1627 (Preprint), 2MB
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arXiv:1112.1627
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File downloaded from arXiv at 2012-03-14 16:20
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Herrero-Garcia, Juan1, Author
Schwetz-Mangold, Thomas1, Author           
Zupan, Jure2, Author
Affiliations:
1Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society, ou_904549              
2Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, U.S.A. , ou_persistent22              

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Free keywords: High Energy Physics - Phenomenology, hep-ph,Astrophysics, Cosmology and Extragalactic Astrophysics, astro-ph.CO
 Abstract: We derive constraints on the annual modulation signal in Dark Matter (DM) direct detection experiments in terms of the unmodulated event rate. A general bound independent of the details of DM distribution follows from the assumption that the motion of the earth around the sun is the only source of time variation. The bound is valid for a very general class of particle physics models and also holds in the presence of an unknown unmodulated background. More stringent bounds are obtained, if modest assumptions on symmetry properties of the DM halo are adopted. We illustrate the bounds by applying them to the annual modulation signals reported by the DAMA and CoGeNT experiments in the framework of spin-independent elastic scattering. While the DAMA signal satisfies our bounds, severe restrictions on the DM mass can be set for CoGeNT.

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Language(s): eng - English
 Dates: 2011-12-072012-02-142012-03-05
 Publication Status: Issued
 Pages: discussion of CoGeNT surface event subtraction added, improved statistical analysis, version to appear in JCAP, 29 pages, 9 figures, 3 appendices
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 Rev. Type: -
 Identifiers: arXiv: 1112.1627
URI: http://arxiv.org/abs/1112.1627
Report Nr.: UCHEP-11-14
 Degree: -

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Title: Journal of Cosmology and Astroparticle Physics
Source Genre: Journal
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Publ. Info: Bristol, England : Institute of Physics Pub.
Pages: - Volume / Issue: 03 Sequence Number: 005 Start / End Page: - Identifier: ISSN: 1475-7516
CoNE: https://pure.mpg.de/cone/journals/resource/111055183238000_1