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DAMA and WIMP dark matter

Petriello, Frank J. and Zurek, Kathryn M. (2008) DAMA and WIMP dark matter. Journal of High Energy Physics, 2008 (9). Art. No. 47. ISSN 1029-8479. doi:10.1088/1126-6708/2008/09/047. https://resolver.caltech.edu/CaltechAUTHORS:20190611-125827807

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Abstract

We study whether spin-independent scattering of weakly-interacting massive particles (WIMPs) with nuclei can account for the annual modulation signal reported by DAMA. We consider both elastic and inelastic scattering processes. We find that there is a region of WIMP parameter space which can simultaneously accommodate DAMA and the null results of CDMS, CRESST, and XENON. This region corresponds to an ordinary, elastically-scattering WIMP with a standard Maxwell-Boltzmann distribution, a mass 3 GeV ≾ m_(DM) ≾ 8 GeV, and a spin-independent cross section with nucleons 3 × 10^(−41) cm^2 ≾ σ_p^(SI) ≾ 5 × 10^(−39) cm^2. This new region of parameter space depends crucially on the effect of channeling on the energy threshold for WIMP detection in the DAMA experiment; without the inclusion of this effect, the DAMA allowed region is essentially closed by null experiments. Such low-mass WIMPs arise in many theories of Beyond the Standard Model physics, from minimal extensions of the MSSM to solutions of the baryon-dark matter coincidence problem. We find that inelastic scattering channels do not open up a significant parameter region consistent with all experimental results. Future experiments with low energy thresholds for detecting nuclear recoils, such as CDMSII-Si and those utilizing ultra-low energy germanium detectors, will be able to probe the DAMA region of parameter space.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1088/1126-6708/2008/09/047DOIArticle
https://arxiv.org/abs/0806.3989arXivDiscussion Paper
Additional Information:© SISSA/ISAS 2008. Received: July 15, 2008. Accepted: September 4, 2008. Published: September 9, 2008. We thank H. T. Wong for helpful correspondence regarding the TEXONO experiment, and J. Collar for comments and helpful communication regarding ultra-low energy germanium detectors. The authors are supported by the DOE grant DE-FG02-95ER40896, Outstanding Junior Investigator Award, by the University of Wisconsin Research Committee with funds provided by the Wisconsin Alumni Research Foundation, and by the Alfred P. Sloan Foundation.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-95ER40896
Wisconsin Alumni Research FoundationUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Subject Keywords:Beyond Standard Model, Cosmology of Theories beyond the SM
Issue or Number:9
DOI:10.1088/1126-6708/2008/09/047
Record Number:CaltechAUTHORS:20190611-125827807
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190611-125827807
Official Citation:Frank J. Petriello and Kathryn M. Zurek JHEP09(2008)047
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96294
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:12 Jun 2019 19:42
Last Modified:16 Nov 2021 17:19

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